ASSP Power Management Applications (DC/DC Converter DSC/Camcorder) 4-c

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ASSP Power Management Applications (DC/DC Converter DSC/Camcorder) 4-c

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DS04-27232-3Ea
ASSP Power Management Applications (DC/DC Converter DSC/Camcorder) 4-ch DC/DC Converter
MB39A102
DESCRIPTION
MB39A102 4-channel DC/DC converter using pulse width modulation (PWM). This ideal conversion, down conversion, up/down conversion. built TSSOP-30P/BCC-32P package. Each channel controlled, soft-start. This ideal power supply high-performance portable devices such digital still cameras.
FEATURES
Supports down-conversion up/down Zeta conversion (CH1 CH3) Supports up-conversion up/down Sepic conversion (CH4) Power supply voltage range Reference voltage Error amplifier threshold voltage 1.24 Built-in totem-pole type output Built-in soft-start circuit without load dependence High-frequency operation capability (Max) External short-circuit detection capability -INS terminal
PACKAGES
30-pin plastic TSSOP 32-pad plastic
(FPT-30P-M04)
(LCC-32P-M15)
Copyright©2005-2008 FUJITSU MICROELECTRONICS LIMITED rights reserved 2005.11
MB39A102
ASSIGNMENTS
(TOP VIEW)
-INE2 DTC2 VREF CSCP DTC3 -INE3
-INE1 DTC1 VCCO OUT1 OUT2 OUT3 OUT4 GNDO -INS DTC4 -INE4
(FPT-30P-M04) (Continued)
MB39A102
(Continued) (TOP VIEW) (Penetration diagram from surface)
-INE2
DTC2
-INE1
N.C.
DTC1
VCCO
OUT1
VREF
OUT2
OUT3
OUT4
GNDO -INS
CSCP
N.C.
DTC4
-INE3
-INE4
DTC3
(LCC-32P-M15)
MB39A102
DESCRIPTION
Block TSSOP Control Power CSCP -INS VCCO VREF GNDO Symbol DTC1 -INE1 OUT1 DTC2 -INE2 OUT2 DTC3 -INE3 OUT3 DTC4 -INE4 OUT4 Descriptions Dead time control terminal Error amplifier output terminal Error amplifier inverted input terminal Soft-start capacitor connection terminal Output terminal Dead time control terminal Error amplifier output terminal Error amplifier inverted input terminal Soft-start capacitor connection terminal Output terminal Dead time control terminal Error amplifier output terminal Error amplifier inverted input terminal Soft-start capacitor connection terminal Output terminal Dead time control terminal Error amplifier output terminal Error amplifier inverted input terminal Soft-start capacitor connection terminal Output terminal Triangular wave frequency setting capacitor connection terminal Triangular wave frequency setting resistor connection terminal Power supply control terminal Short-circuit detection circuit capacitor connection terminal Short-circuit detection comparator inverted input terminal Output block power supply terminal Power supply terminal Reference voltage output terminal Output block ground terminal Ground terminal
MB39A102
BLOCK DIAGRAM
Threshold voltage accuracy ±1.5% -INE1 Error VREF Amp1 1.24 DTC1 Threshold voltage accuracy ±1.5% -INE2 Error VREF Amp2 1.24 DTC2 Threshold voltage accuracy ±1.5% -INE3 Error VREF Amp3 1.24 DTC3 Threshold voltage accuracy ±1.5% -INE4 Error VREF Amp4 1.24 DTC4
VREF
priority +Comp.1
Drive1
VCCO
OUT1
priority
VCCO priority +Comp.2 Drive2
OUT2
priority
VCCO priority +Comp.3 Drive3
OUT3
priority
VCCO priority +Comp.4 Drive4
OUT4 GNDO
priority
VCCO Comp. H:UVLO release UVLO
Error Reference
-INS CSCP
Error Power Supply Comp. Power Supply
bias
1.24
Power
Accuracy
VREF
ON/OFF
VREF
(Power/ (Standby mode)
MB39A102
ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage Output current Output peak current Power dissipation Storage temperature Symbol TSTG Condition VCC, VCCO terminals OUT1 OUT4 terminals OUT1 OUT4 terminals Duty (TSSOP-30P) (BCC-32P) Rating 1390* 980* +125 Unit
packages mounted epoxy board cm). WARNING: Semiconductor devices permanently damaged application stress (voltage, current, temperature, etc.) excess absolute maximum ratings. exceed these ratings.
RECOMMENDED OPERATING CONDITIONS
Parameter Power supply voltage Reference voltage output current Input voltage Control input voltage Output current Oscillation frequency Timing capacitor Timing resistor Soft-start capacitor Short detection capacitor Reference voltage output capacitor Operating ambient temperature Symbol IREF VINE VDTC VCTL fOSC CSCP CREF Condition VCC, VCCO terminals VREF terminal -INE1 -INE4 terminals -INS terminal DTC1 DTC4 terminals terminal OUT1 OUT4 terminals terminals Value VREF VREF 1500 Unit
SETTING TRIANGULAR OSCILLATION FREQUENCY". Note numbers referred after this part present TSSOP-30P PKG. WARNING: recommended operating conditions required order ensure normal operation semiconductor device. device's electrical characteristics warranted when device operated within these ranges. Always semiconductor devices within their recommended operating condition ranges. Operation outside these ranges adversely affect reliability could result device failure. warranty made with respect uses, operating conditions, combinations represented data sheet. Users considering application outside listed conditions advised contact their representatives beforehand.
MB39A102
ELECTRICAL CHARACTERISTICS
(VCC VCCO Parameter Output voltage Reference voltage block [Ref] Output voltage temperature variation Input stability Load stability SoftUnder Triangular Short comparator start voltage lockout wave oscillator detection block block protection circuit block [OSC] [SCP] [CS] block [UVLO] Threshold voltage Hysteresis width Threshold voltage Input source current Reset voltage Oscillation frequency Frequency temperature variation Charge current Threshold voltage Error amplifier block [Error Amp1 Error Amp4] Input bias current Voltage gain Frequency bandwidth Output voltage Output source current Output sink current
Symbol
Conditions VREF
Value 1.98 2.00 0.5* 2.02 1.95
Unit
VREF VREF/ VREF Line Load
VREF
0.05
ICSCP VRST fOSC fOSC/ fOSC ISOURCE ISINK
0.65 -1.4
0.70 -1.0
0.75 -0.6
0.65 -INE1 -INE4 0.65 0.65
1.222 1.240 1.258 -120 100* 1.6*
(Continued)
MB39A102
(Continued) (VCC VCCO Symbol Threshold voltage VT100 Input current Output source current IDTC Duty cycle DTC1 DTC4 Duty OUT1 OUT4 Duty OUT1 OUT4 OUT1 OUT4 OUT1 OUT4 -INS Active mode Standby mode -2.0 -0.6 -130 Conditions Duty cycle Value Unit
Parameter comparator block [PWM Comp.1 Comp.4]
Output block [Drive1 Drive4]
ISOURCE
Output sink current Output resistance Threshold voltage
ISINK
0.97
1.00
1.03
Short detection comparator block [SCP Comp.]
Input bias current
ICTLH ICTLL ICCS ICCSO
Control block [CTL] General
input voltage Input current Standby current Power supply current
Standard design value.
MB39A102
TYPICAL CHARACTERISTICS
Power Supply Current Power Supply Voltage
Reference Voltage Power Supply Voltage
Power supply current (mA)
Reference voltage VREF
VREF=
Power supply voltage
Power supply voltage
Reference Voltage Operating Ambient Temperature
2.05 2.04 VREF=
Reference voltage VREF
2.03 2.02 2.01 2.00 1.99 1.98 1.97 1.96 1.95
Operating ambient temperature (°C)
Reference Voltage terminal Voltage
terminal Current terminal Voltage
terminal current ICTL (µA)
Reference voltage VREF
VREF=
terminal voltage VCTL
terminal voltage VCTL (Continued)
MB39A102
Triangular Wave Oscillation Frequency Timing Resistor
10000
Triangular Wave Oscillation Frequency Timing Capacitor
10000
Triangular wave oscillation frequency fOSC (kHz)
Triangular wave oscillation frequency fOSC (kHz)
1000
1000
Timing resistor
1000
1000
10000
Timing capacitor (pF) Triangular Wave Upper Lower Limit Voltage Operating Ambient Temperature
1.20
Triangular Wave Upper Lower Limit Voltage Triangular Wave Oscillation Frequency
1.20 1.10 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 1000 1200 1400 1600 Lower
Triangular wave upper lower limit voltage
Upper
Triangular wave upper lower limit voltage
1.10 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20
Upper
Lower
Triangular wave oscillation frequency fOSC (kHz) Triangular Wave Oscillation Frequency Operating ambient Temperature Triangular wave oscillation frequency fOSC (kHz)
Operating ambient temperature
Operating ambient temperature (Continued)
MB39A102
(Continued) Error Amplifier Voltage Gain, Phase Frequency Error amplifier voltage gain (dB)
-180
Phase (deg)
-INE1 1.24
Error Amp1 same other channels
Frequency (Hz)
Power Dissipation Operating Ambient Temperature (TSSOP-30P)
1600
Power Dissipation Operating Ambient Temperature (BCC-32P) Power dissipation (mW)
1000
Power dissipation (mW)
1400 1390 1200 1000
Operating ambient temperature
Operating ambient temperature
MB39A102
FUNCTIONS
DC/DC Converter Functions
Reference voltage block (Ref) reference voltage circuit generates temperature-compensated reference voltage (2.0 Typ) from voltage supplied from terminal (pin voltage used reference voltage IC's internal circuitry. reference voltage supply load current external device through VREF terminal (pin Triangular-wave oscillator block (OSC) triangular wave oscillator incorporates timing capacitor timing resistor connected respectively terminal (pin terminal (pin generate triangular oscillation waveform amplitude triangular waveforms input comparator Error amplifier block (Error Amp1 Error Amp4) error amplifier detects DC/DC converter output voltage outputs control signals. addition, arbitrary loop gain connecting feedback resistor capacitor from output terminal inverted input terminal error amplifier, enabling stable phase compensation system. Also, possible prevent rush current power supply start-up connecting soft-start capacitor with terminal (pin terminal (pin while non-inverted input terminal Error Amp. Error soft-start detection makes possible system operate fixed soft-start time that independent output load DC/DC converter. comparator block (PWM Comp.1 Comp.4) comparator voltage-to-pulse width modulator that controls output duty depending input/ output voltage. output transistor turns while error amplifier output voltage voltage remain higher than triangular wave voltage. Output block (Drive1 Drive4) output block totem pole configuration, capable driving external P-channel (channels N-channel (channel
MB39A102
Channel Control Function
main each channel turned depending voltage levels terminal (pin terminal (pin 30), terminal (pin terminal (pin 15), terminal (pin 16). Channel On/Off Setting Conditions High-Z High-Z High-Z High-Z High-Z High-Z High-Z High-Z Power
Undefined
Protective Functions
Timer-latch short-circuit protection circuit (SCP, Comp.) short-circuit detection comparator each channel detects output voltage level Error Amp, channel output voltage Error reaches short-circuit detection voltage, timer circuits actuated start charging external capacitor CSCP connected CSCP terminal (pin 11). When capacitor (CSCP) voltage reaches about circuit turned output transistor sets dead time addition, short-circuit detection from external input capable using -INS terminal (pin shortcircuit detection comparator (SCP Comp.) release actuated protection circuit, either power supply turn again terminal (pin level lower VREF terminal (pin voltage (Min) less. (See "SETTING TIME CONSTANT TIMER-LATCH SHORT-CIRCUIT PROTECTION CIRCUIT".)
Under voltage lockout protection circuit (UVLO) transient state momentary decrease supply voltage, which occurs when power supply turned cause malfunction, resulting breakdown degradation system. prevent such malfunctions, under voltage lockout protection circuit detects decrease internal reference voltage with respect power supply voltage, turns output transistor, sets dead time 100% while holding CSCP terminal (pin level. circuit restores output transistor normal when supply voltage reaches threshold voltage under voltage lockout protection circuit.
PROTECTION CIRCUIT OPERATING FUNCTION TABLE
This table refers output condition when protection circuit operating. Operating circuit OUT1 OUT2 Short-circuit protection circuit Under voltage lockout protection circuit OUT3 OUT4
MB39A102
SETTING OUTPUT VOLTAGE
-INEx 1.24 Error 1.24
Each channel
SETTING TRIANGULAR OSCILLATION FREQUENCY
triangular oscillation frequency determined timing capacitor (CT) connected terminal (pin timing resistor (RT) connected terminal (pin Moreover, shifts more greatly than calculated values according constant timing resistor (RT) when triangular wave oscillation frequency exceeds MHz. Therefore, referring "Triangular Wave Oscillation Frequency Timing Resistor" "Triangular Wave Oscillation Frequency Timing Capacitor" TYPICAL CHARACTERISTICS". Triangular oscillation frequency fOSC fOSC (kHz) 1200000 (pF)
MB39A102
SETTING SOFT-START TIME
prevent rush currents when turned soft-start connecting soft-start capacitors (CS1 terminal (pin terminal (pin 16), respectively. Setting each CTLx from switches charge external soft-start capacitors (CS1 CS4) connected terminal (pin terminal (pin error amplifier output (FB1 FB4) determined comparison between lower potentials non-inverted input terminals (1.24 terminal voltages) inverted input terminal voltage (-INE1 to-INE4). terminal voltage during soft-start period terminal voltage 1.24 therefore determined comparison between -INE terminal terminal voltages. DC/DC converter output voltage rises proportion terminal voltage soft-start capacitor connected terminal charged. soft-start time obtained from following formula: Soft-start time: (time output 100%) 0.103 (µF) Soft-Start Circuit
VREF
-INEx
priority
Error
ON/OFF signal
CTLx
1.24 UVLO
Each channel
MB39A102
TREATMENT WITHOUT USING TERMINAL
When using soft-start function, open terminal (pin terminal (pin terminal (pin terminal (pin Without Setting Soft-Start Time
"OPEN"
"OPEN"
"OPEN"
"OPEN"
MB39A102
SETTING TIME CONSTANT TIMER-LATCH SHORT-CIRCUIT PROTECTION CIRCUIT
Each channel uses short-circuit detection comparator (SCP) always compare error amplifiers output level reference voltage. While DC/DC converter load conditions stable channels, short-circuit detection comparator output remains level, CSCP terminal (pin held level. load condition channel changes rapidly short-circuit load, causing output voltage drop, output short-circuit detection comparator that channel goes level. This causes external short-circuit protection capacitor CSCP connected CSCP terminal (pin charged Short-circuit detection time (tCSCP) tCSCP 0.70 CSCP (µF) When capacitor CSCP charged threshold voltage (VTH 0.70 latch external turned (dead time 100%). this point, latch input closed CSCP terminal (pin held level. addition, short-circuit detection from external input capable using -INS terminal (pin shortcircuit detection comparator (SCP Comp.) short-circuit detection operation starts when -INS terminal voltage less than threshold voltage (VTH When power supply turn back VREF terminal (pin voltage less than (Min) setting terminal (pin level, latch released. Timer-latch short-circuit protection circuit
1.24 VREF -INS Comp. 1.15 Error
-INEx
each channel Drive
CSCP VREF
CSCP
UVLO
Latch
Each channel
MB39A102
TREATMENT WITHOUT USING CSCP TERMINAL
When using timer-latch short-circuit protection circuit, connect CSCP terminal (pin (pin with shortest distance. Treatment without using CSCP
CSCP
MB39A102
SETTING DEAD TIME
When device step-up inverted output based step-up step-up/down Zeta conversion, stepup/down Sepic conversion flyback conversion, terminal voltage reach exceed triangular wave voltage load fluctuation. this case, output transistor fixed full-ON state duty prevent this, maximum duty output transistor. voltage terminal applying resistive voltage divider VREF voltage shown below. When terminal voltage higher than triangular wave voltage, output transistor turned maximum duty calculation formula assuming that triangular wave amplitude triangular wave lower voltage given below. DUTY (ON) Max= VREF
When terminal used, connect directly VREF terminal (pin shown below (when dead time set). When using dead time
DTCx VREF
Each channel
When dead time
DTCx
VREF
Each channel
MB39A102
OPERATION EXPLANATION WHEN TURNING
When turned internal reference voltage VREF generate. When VREF exceeds threshold voltage (VTH) UVLO (under voltage lockout protection circuit), UVLO released, operation output Drive circuit each channel becomes possible. When off, VREF fall. When VREF decreases UVLO fall below each reset voltage (VRST), UVLO operates output Drive circuit each channel forcibly done operation stop, makes output state. When period reaching VREF voltage after UVLO released turning (refer Timing Chart"), VREF decreases from after turning period until operation UVLO (refer Timing Chart"), bias voltage bias current reach prescribed value because VREF which reference voltage does reach speed response decreased. Note Moreover, when does turning input sudden change, load sudden change, cannot conform output might overshoot. Therefore, impress voltage terminal which VREF terminal voltage never stays abovementioned period. Block Equivalent Circuit
output Drive circuit Possible operate Forcibly stop charge/ discharge circuit Possible charge Forcibly discharge
UVLO
UVLO release
bias
ErrorAmp Reference
1.24 Power ON/OFF
VREF
VREF
MB39A102
Timing Chart
Error Reference voltage
1.24 (Typ)
VREF 2.00 (Typ)
Reference voltage VREF
VRST
UVLO Valid UVLO
UVLO release
output Drive circuit control
Possible operate Fixed full-off Fixed full-off
terminal voltage
(Typ)
MB39A102
EQUIVALENT CIRCUIT
Reference voltage block
1.24
protection element protection element
Control block
Soft-start block
VREF (2.0
77.3
VREF
protection element
Short detection block
VREF (2.0 CSCP
Triangular wave oscillator block (RT)
VREF (2.0
Triangular wave oscillator block (CT)
VREF (2.0
Error amplifier block (CH1 CH4)
VREF (2.0 -INEx
Short detection comparator block
VREF (2.0 -INS
1.24
comparator block (CH1 CH4)
Output block (CH1 CH4)
VCCO
DTCx
OUTx
GNDO
Each channel
MB39A102
APPLICATION EXAMPLE
(2.5
R13R14 -INE1 0.047 DTC1 -INE2 R19R20 0.047 DTC2 -INE3 R25R26 0.047 DTC3 R31R32 -INE4 DTC4 -INS
Short detection signal short)
VCCO OUT1
OUT2
VO2-1
VO2-2 VO2-3 -7.5
OUT3
VO3-1
VO3-2
OUT4 GNDO
4700
CSCP 0.01
fOSC Accuracy ±10%
VREF
(Power (Standby mode)
MB39A102
PARTS LIST
COMPONENT C14, C20, C22, C21, C23, C26, C27, R15, R21, R16, R22, R19, R20, R23, R24, ITEM Diode Diode Inductor Inductor Inductor Transformer Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor SPECIFICATION -1.5 VCEO (Max) 0.55 (Max) 4700 0.047 0.01 0.63 0.94 0.76 VENDOR SANYO SANYO SANYO SANYO SUMIDA PARTS MCH3309 CPH3206 SBS004 SB05-05CP RLF5018T-220MR63 RLF5018T-100MR94 RLF5018T-150MR76 CLQ52 5388-T095 C1608JB1H104K C3216JB1E105K C3216JB1A475M C3216JB1C225K C3216JB1C225K C1608JB1H472K C3216JB1E105K 3216JB1A475M C3216JB0J106M C1608JB1H104K C1608JB1H473K C1608JB1H104K C1608JB1H103K C1608CH1H101J RR0816P-181-D RR0816P-332-D RR0816P-123-D RR0816P-153-D RR0816P-202-D RR0816P-242-D RR0816P-433-D RR0816P-333-D RR0816P-203-D RR0816P-302-D RR0816P-223-D RR0816P-153-D RR0816P-102-D RR0816P-303-D RR0816P-183-D RR0816P-243-D
Note SANYO SANYO Electric Co., Ltd. Corporation SUMIDA SUMIDA Electric Co., Ltd. SUSUMU Co., Ltd.
MB39A102
REFERENCE DATA
TOTAL Efficiency Input Voltage
VO2-1 VO2-2 VO2-3 -7.5 VO3-1 VO3-2 fOSC
TOTAL efficiency
2.59 CH1stops short-circuit detection operation
Input voltage
Each Efficiency Input Voltage
Each efficiency
Note Only concerned Include external operating current discontinuance.
Input voltage
(Continued)
MB39A102
Conversion Efficiency Load Current (CH1)
Conversion efficiency
discontinuance mode
Load current (mA)
Conversion Efficiency Load Current (CH2, CH3)
Conversion efficiency
VO2-1 VO2-3 VO3-1
CH1,
CH1,
Note discontinuance mode.
Load current lO2-2, IO3-2 (mA)
(Continued)
MB39A102
Conversion Efficiency Load Current (CH4)
Conversion efficiency
discontinuance mode
Load current (mA)
(Continued)
MB39A102
(Continued)
Switching Wave Form (CH1)
(µs)
Switching Wave Form (CH4)
(µs)
MB39A102
USAGE PRECAUTION
Printed circuit board ground lines should with consideration common impedance. Take appropriate static electricity measures. Containers semiconductor materials should have anti-static protection made conductive material. After mounting, printed circuit boards should stored shipped conductive bags containers. Work platforms, tools, instruments should properly grounded. Working personnel should grounded with resistance between body ground. apply negative voltages. negative voltages below -0.3 create parasitic transistors lines, which cause abnormal operation.
ORDERING INFORMATION
Part number MB39A102PFT MB39A102PV3 Package 30-pin plastic TSSOP (FPT-30P-M04) 32-pad plastic (LCC-32P-M15) Remarks
MB39A102
PACKAGE DIMENSIONS
30-pin plastic TSSOP (FPT-30P-M04)
7.80±0.10(.307±.004) Details part 0~8° 1.10(.043) 4.40 -0.10 6.40±0.10 +.008 .173 -.004 (.252±.004) 0.25(.010)
+0.20
0.60±0.10 (.024±.004)
INDEX
0.10±0.05 (.004±.002)
0.50(.020)
0.20±0.03 (.008±.001)
0.3865(.0152)
0.127±0.03 (.005±.001)
0.10(.004) 7.00(.276)
0.90±0.05 (.035±.002) 0.3865(.0152)
2001 FUJITSU LIMITED F30007SC-1-1
Dimensions (inches). Note: values parentheses reference values. (Continued)
MB39A102
(Continued) 32-pad plastic (LCC-32P-M15)
4.25(.167)TYP 0.50(.020)TYP 5.00±0.10(.197±.004)
0.80(.031)MAX (Mount height)
0.50±0.10 (.020±.004)
INDEX AREA
5.00±0.10 (.197±.004)
4.25(.167) 0.50(.020) 0.50±0.10 (.020±.004)
3.00(.118)
0.075±0.025 (.003±.001) (Stand off)
3.00(.118)REF
Details part 0.05(.002) 0.14(.006) 0.55±0.06 (.022±.002)
Details part C0.2(.008) 0.55±0.06 (.022±.002)
Details part 0.55±0.06 (.022±.002)
0.30±0.06 (.012±.002)
0.55±0.06 (.022±.002)
0.55±0.06 (.022±.002)
2005 FUJITSU LIMITED C32067S-c-1-1
Dimensions (inches). Note: values parentheses reference values.
FUJITSU MICROELECTRONICS LIMITED
Shinjuku Dai-Ichi Seimei Bldg. 7-1, Nishishinjuku 2-chome, Shinjuku-ku, Tokyo 163-0722, Japan Tel: +81-3-5322-3347 Fax: +81-3-5322-3387 http://jp.fujitsu.com/fml/en/ further information please contact: North South America FUJITSU MICROELECTRONICS AMERICA, INC. 1250 Arques Avenue, Sunnyvale, 94085-5401, U.S.A. Tel: +1-408-737-5600 Fax: +1-408-737-5999 http://www.fma.fujitsu.com/ Europe FUJITSU MICROELECTRONICS EUROPE GmbH Pittlerstrasse 63225 Langen, Germany Tel: +49-6103-690-0 Fax: +49-6103-690-122 Korea FUJITSU MICROELECTRONICS KOREA LTD. KOSMO TOWER, 1002 Daechi-Dong, Kangnam-Gu,Seoul 135-280 Korea Tel: +82-2-3484-7100 Fax: +82-2-3484-7111 http://www.fmk.fujitsu.com/ Asia Pacific FUJITSU MICROELECTRONICS ASIA LTD. Lorong Chuan, #05-08 Tech Park, Singapore 556741 Tel: +65-6281-0770 Fax: +65-6281-0220 FUJITSU MICROELECTRONICS SHANGHAI CO., LTD. Rm.3102, Bund Center, No.222 Road(E), Shanghai 200002, China Tel: +86-21-6335-1560 Fax: +86-21-6335-1605 http://cn.fujitsu.com/fmc/ FUJITSU MICROELECTRONICS PACIFIC ASIA LTD. 10/F., World Commerce Centre, Canton Road Tsimshatsui, Kowloon Hong Kong Tel: +852-2377-0226 Fax: +852-2376-3269 http://cn.fujitsu.com/fmc/tw
Rights Reserved. contents this document subject change without notice. Customers advised consult with sales representatives before ordering. information, such descriptions function application circuit examples, this document presented solely purpose reference show examples operations uses FUJITSU MICROELECTRONICS device; FUJITSU MICROELECTRONICS does warrant proper operation device with respect based such information. When develop equipment incorporating device based such information, must assume responsibility arising such information. FUJITSU MICROELECTRONICS assumes liability damages whatsoever arising information. information this document, including descriptions function schematic diagrams, shall construed license exercise intellectual property right, such patent right copyright, other right FUJITSU MICROELECTRONICS third party does FUJITSU MICROELECTRONICS warrant non-infringement third-party's intellectual property right other right using such information. FUJITSU MICROELECTRONICS assumes liability infringement intellectual property rights other rights third parties which would result from information contained herein. products described this document designed, developed manufactured contemplated general use, including without limitation, ordinary industrial use, general office use, personal use, household use, designed, developed manufactured contemplated accompanying fatal risks dangers that, unless extremely high safety secured, could have serious effect public, could lead directly death, personal injury, severe physical damage other loss (i.e., nuclear reaction control nuclear facility, aircraft flight control, traffic control, mass transport control, medical life support system, missile launch control weapon system), requiring extremely high reliability (i.e., submersible repeater artificial satellite). Please note that FUJITSU MICROELECTRONICS will liable against and/or third party claims damages arising connection with above-mentioned uses products. semiconductor devices have inherent chance failure. must protect against injury, damage loss from such failures incorporating safety design measures into your facility equipment such redundancy, fire protection, prevention over-current levels other abnormal operating conditions. Exportation/release products described this document require necessary procedures accordance with regulations Foreign Exchange Foreign Trade Control Japan and/or export control laws. company names brand names herein trademarks registered trademarks their respective owners.
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ASSP Power Management Applications (DC/DC Converter DSC/Camcorder) 4-c

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