ASSP Power Management Applications 6-ch DC/DC Converter with Synchrono

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ASSP Power Management Applications 6-ch DC/DC Converter with Synchrono

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DS04-27225-4Ea
ASSP Power Management Applications 6-ch DC/DC Converter with Synchronous
Rectifier Voltage Step-up Step-down
MB3883
DESCRIPTION
MB3883 6-channel step-up/step-down DC/DC converter using pulse width modulation (PWM) synchronous rectification, designed voltage, high efficiency, compact size. This ideal conversion, down conversion, up/down conversion (using step-up/step-down Zeta system with free input output settings). MB3883 operate voltage levels, wide supply voltage range from MB3883 available packages, LQFP-48P leadless BCC-48P formed with contact electrode only. This ideal power supply high-performance portable devices such digital still cameras. This product covered Patent Number 6,147,477.
FEATURES
Supports synchronous rectification (CH1, Supports down-conversion up/down Zeta conversion (CH1, Supports up-conversion (CH5) Supports up-conversion (CH3, start-up voltage (CH6) (Continued)
PACKAGES
48-pin plastic LQFP 48-pad plastic
(FPT-48P-M05)
(LCC-48P-M02)
Copyright©2002-2008 FUJITSU MICROELECTRONICS LIMITED rights reserved 2002.10
MB3883
(Continued) Power supply voltage range (CH6) (CH1 CH5) Built-in high-precision reference voltage circuit Wide operating oscillator frequency range with high-frequency capability Error amplifier output soft start (CH1 CH6) Totem-pole type output switch control circuit
MB3883
ASSIGNMENTS
(TOP VIEW)
Output block
OUT5-2
OUT5-1
OUT2-2
OUT2-1
OUT1-2
OUT1-1
OUT6
OUT4
OUT3
SWOUT SWIN (CH5, CH6) -IN6 C+IN6 DTC5 -IN5 -IN4
DTC1 -IN1 DTC2 -IN2 DTC3 -IN3 (CH1 CH3)
CTL4
VREF
CSCP
DTC4
CTL1,
CTL3
(CH4)
Control block
(FPT-48P-M05)
CTL5
MB3883
(TOP VIEW)
Output block
OUT5-2
OUT5-1
OUT2-2
OUT2-1
SWOUT SWIN -IN6 (CH5, CH6) C+IN6 DTC5 -IN5 -IN4
OUT1-2
OUT6
OUT4
OUT3
OUT1-1 DTC1 -IN1 DTC2 -IN2 DTC3 -IN3
VREF
CSCP
CTL1,
DTC4
CTL3
CTL4
(CH4)
Control block
(LCC-48P-M02)
CTL5
(CH1 CH3)
MB3883
DESCRIPTION
Symbol -IN1 DTC1 OUT1-1 OUT1-2 -IN2 DTC2 OUT2-1 OUT2-2 -IN3 DTC3 OUT3 -IN4 DTC4 OUT4 -IN5 DTC5 OUT5-1 OUT5-2 -IN6 C+IN6 OUT6 Descriptions Error amplifier output pin. Error amplifier inverted input pin. Dead time control pin. Main side output pin. Synchronous rectifier side output pin. Error amplifier output pin. Error amplifier inverted input pin. Dead time control pin. Main side output pin. Synchronous rectifier side output pin. Error amplifier output pin. Error amplifier inverted input pin. Dead time control pin. Output pin. Error amplifier output pin. Error amplifier inverted input pin. Dead time control pin. Output pin. Inverting amplifier input pin. Inverting amplifier output pin. Short detection comparator inverted input pin. Error amplifier output pin. Error amplifier inverted input pin. Dead time control pin. Main side output pin. Synchronous rectifier side output pin. Error amplifier output pin. Error amplifier inverted input pin. Soft start capacitor connection pin. Output current setting resistor connection pin. Output pin. (Continued)
MB3883
(Continued)
Symbol SWOUT SWIN
Descriptions Triangular wave frequency setting resistor connection pin. Triangular wave frequency setting capacitor connection pin. Triangular wave oscillator regulator output pin. Output switch control circuit output pin. Output switch control circuit input pin. Power supply, control pin. level Power supply operating mode level Standby mode CH1, control pin. When CTL1, level level CH1, operating mode level CH1, mode control pin. When CTL3 level level operating mode level mode control pin. When CTL4 level level operating mode level mode control pin. When CTL5 level level operating mode level mode Short protection circuit capacitor connection pin. CH1to soft start circuit capacitor connection pin. Reference voltage control circuit power supply pin. Output circuit power supply pin. Reference voltage output pin. Ground pin. Output circuit ground pin.
CTL1,
Control
CTL3
CTL4
CTL5
Power
CSCP VREF
MB3883
BLOCK DIAGRAM
-IN1 Error Amp.1 Comp.
Drive
OUT1-1
Comp. Drive OUT1-2
1.25 Comp.1 DTC1
-IN2 Error Amp.2
Comp.
Drive OUT2-1
Comp.
1.25 Comp.2 DTC2
Drive
OUT2-2
-IN3 Error Amp.3
Comp.3
Drive OUT3
1.25 Comp.3 DTC3
Amp.4
-IN4 Error Amp.4
Comp.4
Drive
OUT4
1.25 Comp.4
DTC4
Error Amp.5
Comp.
Drive Comp. Drive
OUT5-1
-IN5
1.25 Comp.5 DTC5
OUT5-2
Error Amp.6 37.5 62.5 1.26 Comp.6 Power Comp. 0.9V Drive Comp.6 0.74
-IN6
Drive
OUT6
C+IN6
CTL1, CTL3 CTL4 CTL5
Logic
SWOUT SWIN
UVLO
Power ON/OFF 2.49 VREF
CSCP
(Power/CH6) (Standby mode)
Pin)
MB3883
Block diagram (Expansion 1/2)
-IN1 Error Amp.1
Comp.
Drive
OUT1-1
Comp. Drive OUT1-2
1.25 Comp.1 DTC1
-IN2 Error Amp.2
Comp.
Drive OUT2-1
Comp.
1.25 Comp.2 DTC2
Drive
OUT2-2
-IN3 Error Amp.3
Comp.3
Drive OUT3
1.25 Comp.3 DTC3
Amp.4
-IN4 Error Amp.4
Comp.4
Drive
OUT4
1.25 Comp.4
DTC4
MB3883
Block diagram (Expansion 2/2)
Error Amp.5
Comp.
Drive Comp. Drive
OUT5-1
-IN5
1.25 Comp.5 DTC5
OUT5-2
Error Amp.6 -IN6 37.5 62.5 1.26 Comp.6 Power Comp. 0.9V Drive Comp.6 0.74
Drive
OUT6
C+IN6
CTL1, CTL3 Logic CTL4 CTL5
SWOUT SWIN
UVLO
Power ON/OFF 2.49 VREF
CSCP
(Power/CH6) (Standby mode)
Pin)
MB3883
ABSOLUTE MAXIMUM RATINGS
Rating Min. Max. 860* 710* +125
Parameter Power supply voltage Output current Output peak current Power dissipation Storage temperature
Symbol Tstg
Condition pin, Duty (LQFP-48P) (BCC-48P)
Unit
packages mounted epoxy board cm). WARNING: Semiconductor devices permanently damaged application stress (voltage, current, temperature, etc.) excess absolute maximum ratings. exceed these ratings.
MB3883
RECOMMENDED OPERATING CONDITIONS
Value Min. -0.5 0.082 Typ. 0.027 0.47 0.18 Max. 1000
Parameter Startup power supply voltage Power supply voltage Reference voltage output current output current Input voltage Control input voltage Output current Output current setting resister Oscillator frequency Timing capacitor Timing resistor Soft-start capacitor Short detection capacitor capacitor Operating ambient temperature
Symbol VCTL fOSC C+IN6 CSCP
Condition
Unit
VREF -IN1 -IN5, -IN6 (CH1 CH5) (CH6) SWOUT
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.
MB3883
ELECTRICAL CHARACTERISTICS
Parameter Reference voltage Reference voltage block [REF] Output voltage temperature stability Input stability Load stability Short-circuit output current
Under voltage Soft-start lockout protection block circuit block [U.V.L.O] [CS]
Symbol
Conditions VREF VREF
Value Min. 2.46 1.20 1.35 -1.4 0.65 -1.4 Typ. 2.49 0.5* 1.30 -1.0 0.70 -1.0 Max. 2.51 1.40 1.65 -0.6 0.75 -0.6
Unit
VREF VREF /VREF Line Load VRST VSTB VSTB ICSCP fOSC f/fdv
Threshold voltage Hysteresis width Reset voltage Threshold voltage Input standby voltage Charge current Threshold voltage Input standby voltage Input latch voltage Input source current Oscillator frequency Frequency stability voltage Frequency stability temperature
Short circuit detection block [SCP]
Triangular wave oscillator block [OSC]
f/fdt
Standard design value. (Continued)
MB3883
Parameter Threshold voltage temperature stability Error amplifier block (CH1 CH5) [Error Amp.]
Symbol
Conditions
Value Min. 1.23 -320 -120 Typ. 1.25 0.5* 1.0* -2.0 1.26 0.5* 1.0* -2.0 1.0* -2.0 Max. 1.27 -1.0 1.28 -1.0 -1.0
Unit
1.45
VT/VT (CH1 CH3, CH5) (CH4)
Input bias current
Voltage gain Frequency bandwidth Output voltage Output source current Output sink current Threshold voltage temperature stability Input bias current Voltage gain Frequency bandwidth Output voltage Output source current Output sink current Input offset voltage Input bias current Voltage gain Frequency bandwidth Output voltage Output source current Output sink current
ISINK VT/VT ISOURCE ISINK ISOURCE ISINK
1.24 -100
ISOURCE 1.45 1.45 0.55 0.55 0.55 1.25 1.25 1.25
Error amplifier bolck (CH6) [Error Amp.]
-120
Standard design value. (Continued)
Inverting amplifier bolck (CH4) [Inv Amp.]
MB3883
Parameter
Short detection comparator block (CH1 CH5) [SCP Comp.]
Symbol
Conditions (CH1 CH3, CH5) (CH4)
Value Min. Typ. Max. 0.97 -320 -200 1.00 1.03
Unit
Threshold voltage
Input bias current
Short detection Output block Output block Output block Comp. Comp. block comparator (CH1 CH5) (CH6) (CH1 CH5) (CH1, CH2, CH5) block(CH6) block (CH6) [Drive] [Drive-2(Nch MOS)] [Drive-1(Pch MOS)] [PWM Comp.] [PWM Comp.]
[SCP Comp.]
Threshold voltage
Threshold voltage
VT100
Duty cycle Duty cycle (CH1 CH5) Duty cycle Duty cycle Max. Duty Duty
-1.0
-0.3
0.84 -1.4
Input current
IDTC
Threshold voltage Maximum duty cycle Output source current Output sink current Output resistor
VTmax ISOURCE ISINK
0.74 -130 -130 -2.0
Output source current Output sink current Output resistor
ISOURCE ISINK
Duty Duty
Output source current Output sink current
ISOURCE ISINK
-2.6 Duty
Standard design value. (Continued)
MB3883
(Continued) Symbol ISWIN ISOURCE ISINK input voltage Standby mode Conditions SWOUT level SWOUT level SWIN Duty SWOUT Duty SWOUT SWOUT SWOUT Active mode Value Min. Typ. Max. Unit
Parameter input voltage Output switch control block (Drive-1 [SW]) Control block (CTL, CTL1 CTL5) [CTL] Input current Output source current Output sink current Output resistor
Input current
ICTL ICCS ICCS
CTL1, CTL3 CTL4 CTL5
General
Standby current Power supply current
Standard design value.
MB3883
TYPICAL CHARACTERISTICS
Power supply current power supply voltage Power supply current (mA) Reference voltage VREF
CTL1, CTL3 CTL4 CTL5
Reference voltage power supply voltage
CTL1, CTL3 CTL4 CTL5 VREF
Power supply voltage
Power supply voltage
Reference voltage ambient temperature
2.56
Reference voltage VREF
2.54 2.52 2.48 2.46 2.44
CTL1, CTL3 CTL4 CTL5 VREF
Ambient temperature (°C)
Reference voltage control voltage Reference voltage VREF
VREF
Control current control voltage
Control current ICTL (µA)
CTL1, CTL5
Control voltage VCTL
Control voltage VCTL (Continued)
MB3883
Triangular wave upper lower limit voltage triangular wave oscillator frequency Triangular wave upper lower limit voltage Triangular wave upper lower limit voltage
1000 1200
Triangular wave upper lower limit voltage ambient temperature
Upper
Upper
Lower
Lower
Triangular wave oscillator frequency fOSC (kHz) Triangular wave oscillator frequency timing capacitor
10000
Ambient temperature
Triangular wave oscillator frequency timing resistor
10000
Triangular wave oscillator frequency fOSC (kHz)
Triangular wave oscillator frequency fOSC (kHz)
1000
1000 1000
1000
10000
Timing capacitor (pF) Triangular wave oscillator frequency ambient temperature
Timing resistor
Triangular wave oscillator frequency fOSC (kHz)
CTL1, CTL3 CTL4 CTL5
Ambient temperature (Continued)
MB3883
(Continued) Error amplifier gain phase frequency (CH1)
-180
Gain (dB)
Phase (deg)
Error Amp.1 1.25 Logic
Frequency (Hz)
Error amplifier gain phase frequency (CH6)
-180
Phase (deg)
Gain (dB)
1.26
Error Amp.6
Logic
Frequency (Hz) Power dissipation ambient temperature (LQFP-48P)
1000 1000
Power dissipation ambient temperature (BCC-48P) Power dissipation (mW)
Power dissipation (mW)
Ambient temperature
Ambient temperature
MB3883
FUNCTIONS
DC-DC Converter Functions
Reference voltage block reference voltage circuit generates temperature-compensated reference voltage (typically 2.49 from voltage supplied from power supply terminal (pin 19). voltage used reference voltage IC's internal circuitry. reference voltage supply load current external device through VREF terminal (pin 16). Triangular-wave oscillator block triangular wave oscillator incorporates timing capacitor timing resistor connected respectively terminal (pin terminal (pin generate triangular oscillation waveform (amplitude (amplitude phase with CT), (amplitude inverse phase with CT). input comparator Error amplifier (Error Amp.) block error amplifier detects DC/DC converter output voltage outputs control signals. supports wide range in-phase input voltages from "VCC (channels "Vcc-0.9 V"(channel6) allowing easy setting from external power supply. addition, arbitrary loop gain connecting feedback resistor capacitor from output inverted input error amplifier, enabling stable phase compensation system. Inverting amplifier (Inv Amp.) block inverting amplifier detects DC/DC converter output voltage negative voltage) outputs control signal error amp. comparator (PWM Comp.) block comparator voltage-to-pulse width converter controlling output duty depending input voltage. Channels main sides,channel 3,4, comparator keeps output transistor while error amplifier output voltage voltageremain higher than triangular wave voltage. Channels synchronous rectification sides comparator keeps output transistor while error amplifier output voltage remain lower than triangular wave voltage. Output block output block main side synchronous rectification side both totem pole configuration, capable driving external P-channel (channels main sides, channel synchronous rectification side), transistor (channel N-channel (channels channel main side, channels synchronous rectification sides).
MB3883
Channel Control Function
Channels turned depending voltage levels terminal (pin 20), CTL1, terminal (pin 21), CTL3 terminal (pin 22), CTL4 terminal (pin 23), CTL5 terminal (pin 24). Channel On/Off Setting Conditions Voltage level Channel on/off state CTL1, CTL3 CTL4 Undefined CTL5 Power/CH6 CH1, (Standby state)
Protective Functions
Timer-latch short-circuit protection circuit short-circuit detection comparator each channel detects output voltage level and, channel output voltage falls below short-circuit detection voltage, timer circuits actuated start charging external capacitor CSCP connected CSCP terminal (pin 18). When capacitor voltage reaches about 0.70 circuit turned output transistor sets dead time reset actuated protection circuit, turn power supply back. (See "SETTING TIME CONSTANT TIMER-LATCH SHORT-CIRCUIT PROTECTION CIRCUIT".) Undervoltage lockout protection circuit transient state momentary decrease supply voltage, which occurs when power supply turned cause malfunction, resulting breakdown degradation system. prevent such malfunctions, undervoltage 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 undervoltage lockout protection circuit. Output switch control circuit When power turned this circuit prevents reactive current flow external step-up circuits CH6. When SWIN terminal (pin state level after releasing UVLO C+IN6 terminal (pin5) voltage goes above (Typ.), SWOUT terminal (pin becomes level. External P-ch turned this time output voltage generated.
MB3883
Soft Start Operation
Description When CTL, CTL1,2, CTL3, CTL4, CTL5 terminals driven high ("H" level) same time capacitor (C+IN6) connected C+IN6 terminal (pin starts charging. When C+IN6 terminal voltage falls below (Typ.), capacitor (Cs) connected terminal (pin starts charging error amp. provides soft start comparing output voltage voltage terminal. Input (pin CTL1, (pin CTL3 (pin CTL4 (pin CTL5 (pin Output
(pin C+IN6 (pin output voltage
2.49
VREF (pin (pin15) output voltage
1.25
soft start interval soft start interval
MB3883
After soft start, when CTL1, CTL3, CTL4, CTL5 terminals driven high capacitor (Cs) connected terminal (pin starts charging error provides soft start comparing output voltage voltage terminal. Input
CTL1, CTL3 CTL4 CTL5 Output
C+IN6 output voltage
2.49
VREF output voltage CH4, output voltage Vo4,
1.25 1.25
(6)'
(7)'
(6)' (7)'
soft start interval VREF Output start soft start interval CH4, soft start interval (CH5) soft start interval (waveform) CTL4 (CTL5) from during soft start interval
Note Each terminals CTL1,2, CTL3, CTL4, CTL5 switched independently. When these terminals switched soft start operation provided shown above timing chart.
MB3883
Soft Start Settings soft start time soft start operation determined capacitor (C+IN6) connected C+IN6 terminal (pin soft start time depends input voltage load current.
soft start time C+IN6 37.5 62.5
VC+IN6 1.26
Error Amp.6
VC+IN6 C+IN6 (1.26 C+IN6 (62.5 (37.5
soft start equivalent circuit Example: soft start time until output voltage reaches voltage determined follows: 0.07 C+IN6 (µF) soft start time soft start time 1.25 (µF) Note short-circuit detection function remains working during soft start operation channels through
SETTING TRIANGULAR OSCILLATOR FREQUENCY
triangular oscillator frequency determined timing capacitor (CT) connected terminal (pin 26), timing resistor (RT) connected terminal (pin 25). Triangular oscillator frequency fOSC (kHz) 900000 (pF)
MB3883
SETTING OUTPUT VOLTAGE
CH3,
-IN1 Error Amp.1 1.25
1.25
Comp.1
-IN4 1.25
Amp.4
V-IN VOUT
VOUT V-IN4
Error Amp.4
MB3883
-IN6 37.5 1.26 62.5 Error Amp.6 1.26
C+IN6
MB3883
SETTING OUTPUT CURRENT
output circuit (drive structured illustrated below output circuit diagram). found "Output Current Waveform" below, source current value output current waveform constant current setting. Note that source current following equation: Output source current
Source current
External transistor Output source current
OUT6
Output sink current Sink current
output circuit diagram
Output source current (Peak) Output source current Output current
Output sink current (Peak)
Output current waveform
MB3883
SETTING TIME CONSTANT TIMER-LATCH SHORT-CIRCUIT PROTECTION CIRCUIT
short detection comparator (SCP comparator) each channel monitors output voltage. While switching regulator load conditions stable channels, LOG_SCP output remains level, transistor turned CSCP terminal (pin held level. load condition channel changes rapidly short load, causing output voltage drop, output short detection comparator that channel goes level. This causes transistor turned external short protection capacitor CSCP connected CSCP terminal charged Short detection time (tPE) 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 held level.
-IN1 Drive Comp.1 Drive
External
OUT1-1
OUT1-2
Comp.6 LOG_SCP
Drive CSCP Timer-latch short protection circuit bias bias
OUT6
CSCP
UVLO
Power ON/OFF
Timer-latch short circuit protection circuit
MB3883
TREATMENT WITHOUT USING CSCP
When using timer-latch short protection circuit, connect CSCP terminal (pin with shortest distance.
CSCP
Treatment without using CSCP
OPERATING WITHOUT SOFT START FUNCTION
disable soft start function, leave terminal (pin open. disable soft start function, leave C+IN6 terminal (pin open.
"Open"
"Open"
C+IN6
When soft start time
MB3883
SETTING DEAD TIME
When device step-up inverted output based step-up step-up/down Zeta method flyback method, voltage reach exceed rectangular wave voltage load fluctuation. this case, output transistor fixed full-ON state duty prevent this, maximum duty output transistor. voltage DTC1 terminal (pin applying resistive voltage divider VREF voltage shown below. When voltage DTC1 terminal (pin higher than triangular wave voltage (CT1), output transistor turned maximum duty calculation formula assuming that triangular wave amplitude triangular wave minimum voltage given below. (Same other channels.) DUTY (ON) max= VREF
When DTC1 terminal used, connect directly VREF terminal (pin shown below (when dead time set). (Same other channels.)
VREF
DTC1
When using dead time (Same other channels.) CH1)
VREF
DTC1
When dead time Same other channels.)
MB3883
TREATMENT WITHOUT USING Amp.
When using Amp., connect -IN(A)4 terminal (pin OUT(A)4 terminal (pin with shortest distance.
-IN(A)4 OUT(A)4
Treatment without using Amp.
MB3883
APPLICATION EXAMPLE
OUT1-1 3300 (3.3 (250
-IN1 DTC1
OUT1-2
OUT2-1 2700
-IN2 DTC2 -IN3 DTC3
(2.5 (150
OUT2-2
(5.0
<CCD> Vo3-1 Vo3-2 (-7.5 (2.5
OUT3
VREF
(1.8 -IN4 DTC4 -IN5 DTC5
(5.0
OUT4
OUT5-1 OUT5-2
<LCD> Vo4-3 (-15 Vo4-2 (6.5 Vo4-1 (13.5 (2.7
(5.0 (100
-IN6
OUT6 SWOUT
(5.0
C+IN6 0.33
CTL1, CTL3 CTL4 CTL5 CSCP VREF
SWIN (5.0
SWOUT SWOUT
(Power/CH6) (Standby mode)
Pin)
MB3883
Application example (Expansion1/2)
-IN1 DTC1
OUT1-1
3300
(3.3 (250
OUT1-2
OUT2-1 2700
-IN2 DTC2 -IN3 DTC3
(2.5 (150
OUT2-2
(5.0
<CCD> Vo3-1 Vo3-2 (-7.5 (2.5
OUT3
VREF
(1.8 -IN4 DTC4
(5.0
OUT4
<LCD> Vo4-3 (-15 Vo4-2 (6.5 Vo4-1 (13.5 (2.7
MB3883
Application example (Expansion 2/2)
-IN5 DTC5 OUT5-1 OUT5-2
(5.0 (100
-IN6
OUT6 SWOUT
(5.0
C+IN6 0.33
CTL1, CTL3 CTL4 CTL5 CSCP VREF
SWIN (5.0
SWOUT SWOUT
(Power/CH6) (Standby mode)
Pin)
MB3883
PARTS LIST
COMPONENT Q10, C12, C13, C30, C31, R15, R19, R16, R20, R17, R18, R23, R27, R29, R31, R30, R32, R34, R33, ITEM Diode Diode Coil Coil Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Ceramics Condensor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor SPECIFICATION VCEO VDSS VDSS VCEO 0.40 (Max.) 0.55 (Max.) 3300 2700 0.33 74.5 0.77 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 VENDOR SANYO Fairchild SANYO SANYO SANYO SANYO PARTS CPH3106 NDS355AN CPH3303 CPH3206 SBS004 SB05-05CP SLF6028T-150M1R0 SLF6028T-220MR77
Note SANYO SANYO Electric Co., Ltd. Fairchild Fairchild Semiconductor Corporation Corporation
MB3883
REFERENCE DATA
Conversion efficiency load current (CH1 Zeta method with synchronous rectification)
3300
(3.3
Conversion efficiency
OUT1-1
OUT1-2
output VCC(O)
Load current (mA) Conversion efficiency load current (CH2 Zeta method with synchronous rectification)
3300 (2.5
Conversion efficiency
OUT2-1
OUT2-2
output VCC(O)
Load current (mA) Note above application uses constant Vin=2.5 with settings made maximum load.
(Continued)
MB3883
(Continued) Conversion efficiency load current (CH5 conversion method with synchronous rectification)
(5.0
Conversion efficiency
output VCC(O)
OUT5-1
OUT5-2 SWOUT
Load current (mA) Note above application uses constant Vin=2.5V, with settings made maximum load.
MB3883
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 MB3883PFV MB3883PV Package 48-pin plastic LQFP (FPT-48P-M05) 48-pad plastic (LCC-48P-M02) Remarks
MB3883
PACKAGE DIMENSIONS
48-pin plastic LQFP (FPT-48P-M05)
9.00±0.20(.354±.008)SQ *7.00 -0.10 (.276 -.004
+0.40 +.016
Note These dimensions include resin protrusion. Note Pins width pins thickness include plating thickness.
0.145±0.055 (.006±.002)
0.08(.003) INDEX
Details part 1.50 -0.10 .059 -.004
+0.20 +.008
(Mounting height)
0°~8° LEAD 0.50(.020)
0.10±0.10 (.004±.004) (Stand off)
0.20±0.05 (.008±.002)
0.08(.003)
0.50±0.20 (.020±.008) 0.60±0.15 (.024±.006)
0.25(.010)
2002 FUJITSU LIMITED F48013S-c-5-9
Dimensions (inches) (Continued)
MB3883
(Continued) 48-pin plastic (LCC-48P-M02)
6.20(.244)TYP 5.00(.197)REF 7.00±0.10(.276±.004) (0.80(.031)MAX) (Mount height) 0.50(.020) 0.50±0.10 (.020±.004)
0.50(.020) 6.15(.242) 5.00(.197) 0.50±0.10 (.020±.004)
7.00±0.10 (.276±.004) INDEX AREA
6.20(.244)
0.075±0.025 (.003±.001) (Stand off) Details part 0.05(.002) 0.14(.006) 0.40±0.06 (.016±.002)
6.15(.242)REF
Details part C0.2(.008) 0.45±0.06 (.018±.002)
Details part 0.45±0.06 (.018±.002)
0.30±0.06 (.012±.002)
0.45±0.06 (.018±.002)
0.45±0.06 (.018±.002)
2001 FUJITSU LIMITED C48055S-c-4-2
Dimensions (inches)
FUJITSU MICROELECTRONICS LIMITED
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ASSP Power Management Applications 6-ch DC/DC Converter with Synchrono

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