150mA, Noise, Dropout Linear Regulator DESCRIPTION AIC1730 n

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150mA, Noise, Dropout Linear Regulator DESCRIPTION AIC1730 n

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AIC1730
150mA, Noise, Dropout Linear Regulator
DESCRIPTION
AIC1730 noise, dropout linear regulator, housed small SOT-23-5 SOT-236W package. device "ON" state when SHDN logic high level. internal P-MOSFET pass transistor used achieve dropout voltage 90mV 50mA load current. offers high precision output voltage ±2%. very quiescent current dropout voltage make this device ideal battery powered applications. internal reverse bias protection eliminates requirement reverse voltage protection diode. high ripple rejection noise provide enhanced
Available Output Tolerance. 1.8V 3.3V Output Voltage with 0.1V Increment. Active Shutdown Control. Very Quiescent Current. Very Dropout Voltage. Miniature Package (SOT-23-5 SOT-23-6W) Short Circuit Thermal Protection. Very Noise.
APPLICATIONS
Cellular Telephones. Pagers. Personal Communication Equipment. Cordless Telephones. Portable Instrumentation. Portable Consumer Equipment. Radio Control Systems. Voltage Systems. Battery Powered Systems.
performance critical applications. external capacitor connected noise bypass reduce output noise level.
TYPICAL APPLICATION CIRCUIT
VOUT
COUT
VOUT
SHDN
AIC1730 0.1µF
SHDN
Noise Dropout Linear Regulator
Analog Integrations Corporation
Industry Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw
DS-1730-01 012102
AIC1730
ORDERING INFORMATION
AIC1730-XXCXXX PACKING TYPE TAPE REEL PACKAGE TYPE SOT-23-5 SOT-23-6W OUTPUT VOLTAGE 1.8V 285: 2.85V 3.3V output voltage available 0.1V step. Example: AIC1730-18CVTR 1.8V Version, SOT-23-5 Package Tape Reel Packing Type CONFIGURATION SOT-23-5 (CV) VIEW SHDN VOUT SOT-23-6 (CQ) VIEW SHDN VOUT VOUT
ABSOLUTE MAXIMUM RATINGS
Supply Voltage .12V .12V SOT-23-5 .130°C Operating Temperature Range Storage Temperature Range Shutdown Terminal Voltage
Noise Bypass Terminal Voltage
Thermal Resistance (Junction Case) (Assume ambient airflow, heatsink)
Thermal Resistance Junction Ambient SOT-23-5 .220°C
AIC1730
ELECTRICAL CHARACTERISTICS
otherwise specified)
PARAMETER Quiescent Current Standby Current Current Continuous Output Current Output Current Limit Output Voltage Tolerance Temperature Coefficient Line Regulation VOUT(TYP) VOUT(TYP) IOUT 0.1~150mA IOUT Dropout Voltage
(CIN=1µF COUT=10µF, J=25°C, unless
TEST CONDITIONS IOUT 0mA, 3.6~12V 3.6~8V output IOUT 0.1~150mA VOUT VOUT VOUT VOUT load
SYMBOL ISTBY IGND IOUT VOUT VLIR VLOR
MIN.
TYP.
MAX.
UNIT
Load Regulation
IOUT VOUT2.5V IOUT
VDROP1 VDROP2 VREF
Dropout Voltage Noise Bypass Terminal Voltage Output Noise
IOUT=150
VOUT <2.5V
1.23 0.46
0.1µF 1KHz
SHUTDOWN TERMINAL SPECIFICATIONS Shutdown Current Shutdown Voltage (ON) Output SHDN SHDN SHDN Shutdown Voltage (OFF) Output (OFF) Shutdown Exit Delay Time THERMAL PROTECTION Thermal Shutdown Temperature 0.1µF COUT 1µF, IOUT=30mA
AIC1730
TYPICAL PERFORMANCE CHARACTERISTICS
IOUT=1mA,CBP=0.1µF COUT=10µF
IOUT=1mA,CBP =0.1
COUT=1µF VOUT 50mV/DIV
VOUT 50mV/DIV
VOUT+3V VOUT+1V 2V/DIV VOUT+1V
VOUT 2V/DIV
TIME (100 µS/DIV)
Time (100µ S/DIV)
Fig. Line Transient Response
Fig.
Line Transient Response
IOUT=1mA,CBP =1µF COUT=1µF
IOUT=1mA,CB P=1µF COUT=10µF VOUT 50mV/DIV VOUT 50mV/DIV
VOUT+3V VOUT+1V
2V/DIV
VOUT+3V VOUT+1V 2V/DIV
Time (100µS/DIV)
Time (100µ S/DIV)
Fig. Line Transient Response
Fig. Line Transient Response
=30mA,C BP=0.01µF =3.3µF
2V/DIV
IOUT=30mA,CBP=0.1µF COUT=3.3
VOUT 2V/DIV
VSHDN 2V/DIV
VSHDN 2V/DIV
Time (250µS/DIV)
Time (250µ S/DIV)
Fig.
Shutdown Exit Delay
Fig. Shutdown Exit Delay
AIC1730
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
IOUT=10mA,CBP =0.1 COUT=1µF
VOUT 2V/DIV
IOUT=10mA,C BP=0.1µF COUT =10µF
VOUT 2V/DIV
VSHDN 2V/DIV
VSHDN 2V/DIV
Time (250 µS/DIV)
TIME (250 µS/DIV)
Fig.
Shutdown Exit Delay
Fig.
Shutdown Exit Delay
P=0.1 COUT=1µF
=0.1 COUT=10µF
VOUT 20mV/DIV
VOUT 20mV/DIV
IOUT=60mA IOUT=0mA IOUT =0mA
IOUT=60mA
Time (1mS/DIV)
TIME (1mS/DIV)
Fig.
Load Transient Response
Fig. Load Transient Response
P=0.1 COUT=1µF VOUT 20mV/DIV
=0.1 OUT=10µF VOUT 20mV/DIV
IOUT=90mA
OUT=90mA
=0mA
OUT=0mA
Time (1mS/DIV)
Time (1mS/DIV)
Fig. Load Transient Response
Fig. Load Transient Response
AIC1730
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
IOUT =50mA
VOUT=3.0V
IOUT=0mA
VDROP (mV)
IGND (uA)
IOUT (mA)
Fig.
Dropout Voltage Output Current
Fig.
Ground Current Input Voltage (VOUT=3.0V)
IOUT=90mA
IGND (mA)
(µA)
IOUT =0mA
IOUT =60mA IOUT =30mA
(°C)
Fig. Quiescent Current Mode) Input Voltage
Fig.
Ground Current Temperature
Output IOUT (mA)
VSHDN
VOUT connected
Output
(°C)
Fig.
Shutdown Voltage Temperature
Fig.
Short Circuit Current Input Voltage
AIC1730
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
IGND (µA)
IOUT (mA)
Fig.
Ground Current Output Current
BLOCK DIAGRAM
Current Limiting
VREF 1.23V Power Shutdown
Error Amp. Thermal Limiting
VOUT
SHDN
AIC1730
DESCRIPTIONS
SOT-23-5
Power supply input pin. Bypass with capacitor Ground functions pin. This also
SOT-23-6W
SHDN Active-Low shutdown input pin.
Ground functions pin. This also
heatsink.
heatsink.
maximize power dissipation, large circuitboard ground plane recommended. Noise bypass pin. external bypass capacitor connected reduces noises output. VOUT Output pin. Sources Ground functions pin. This also
maximize power dissipation, large circuitboard ground plane recommended. SHDN Active-Low shutdown input pin. Noise bypass pin. external bypass capacitor connected reduces noises output. VOUT Output pin. Sources
heatsink.
maximize power dissipation, large circuitboard ground plane recommended. Power supply input pin. Bypass with capacitor
DETAILED DESCRIPTION TECHNICAL TERMS
which point regulator starts fall
OUTPUT VOLTAGE (VOUT)
AIC1730 provides factory-set output voltages from 1.8V 3.3V, 100mV increments. output voltage specified with VOUT (TYP) IOUT
regulation. Below this value, output voltage will fall input voltage reduced. depends load current junction temperature. dropout voltage specified which output voltage drops 100mV below value measured with difference.
DROPOUT VOLTAGE (VDROP)
dropout voltage defined difference between input voltage output voltage
AIC1730
CONTINUOUS OUTPUT CURRENT (IOUT)
Normal rated output current. This limited package power dissipation.
STANDBY CURRENT (ISTBY)
Standby current current flowing into regulator when output shutdown setting SHDN
LINE REGULATION
Line regulation ability regulator maintain constant output voltage input voltage changes. line regulation specified input voltage changed from VOUT IOUT 1mA.
CURRENT LIMIT (IIL
AIC1730 include current limiter, which monitors controls maximum output current 300mA typically output shorted ground. This protect device from being damaged.
LOAD REGULATION
Load regulation ability regulator maintain constant output voltage load current changes. minimize temperature effects, pulsed measurement with input voltage VOUT load regulation specified under output current step 0.1mA 150mA.
THERMAL PROTECTION
thermal sensor protects device when junction temperature exceeds signals shutdown logic, turning pass transistor allowing cool. After
QUIESCENT CURRENT (IQ)
quiescent current current flowing through ground under load.
IC's junction temperature cools thermal sensor will turn pass transistor again. Thermal protection designed protect device event fault conditions.
GROUND CURRENT (IGND)
Ground current current flowing through ground under loading.
continuous operation exceed absolute maximum junction-temperature rating damage occur device.
APPLICATION INFORMATION
(ESR) range shown graphs below
INPUT-OUTPUT CAPACITORS
Linear regulators require input output capacitors maintain stability.
stability. Because ceramic capacitor's lower electrical ESR) vary characteristics widely over
recommended minimum value input capacitor 0.22µF. output capacitor should selected within Equivalent Series Resistance
(capacitance
temperature, tantalum output capacitor recommended, especially heavier load. general, capacitor should least
AIC1730
1µF(tantalum) rated actual ambient operating temperature range. Note: very important check selected manufactures' electrical characteristics
mounting with good thermal conductivity used, junction will even power dissipation great. power dissipation across device IOUT (VIN OUT). maximum power dissipation
(capacitance ESR) over temperature.
PMAX
(R?JB
temperature difference
NOISE BYPASS CAPACITOR
0.1µF bypass capacitor output voltage noise. Increasing capacitance such will decrease output noise, however, values above provide
where
between junction surrounding air, thermal resistance package, thermal resistance through PCB, copper traces, other materials surrounding air. general rule, lower temperature better reliability device
performance recommended.
advantage
POWER DISSIPATION
maximum power dissipation AIC1730 depends thermal resistance case circuit board, temperature difference between junction ambient air, rate flow. rate temperature rise greatly affected mounting
mounting should provide maximum thermal conductivity maintain device temperature. performs dual function providing electrical connection ground channeling heat away. Therefore, connecting ground with large ground plane would increase power dissipation reduce device temperature.
configuration PCB, board material, ambient temperature. When
COUT=1µF
COUT=2.2µ
ESR()
STABLE REGION
Stable Region
0.01
Fig. Power Dissipation, COUT=1µF
IOUT (mA)
0.01
Fig. Power Dissipation, COUT=2.2
IOUT (mA)
AIC1730
COUT=3.3µF ESR(
COUT =10µF
ESR()
Stable Region
Stable Region
0.01
0.01
Fig. Power Dissipation, =3.3µF
IOUT (mA)
Fig. Power Dissipation, OUT=10µF
IOUT (mA)
PHYSICAL DIMENSIONS
SOT-23-5 (unit:
SYMBOL
1.00 0.70 0.35 0.10 2.70 1.40
1.30 0.10 0.90 0.50 0.25 3.10 1.80
1.90 (TYP) 2.60 0.37 3.00
SOT-23-5 Marking
Part AIC1730-18CV AIC1730-19CV AIC1730-20CV AIC1730-21CV AIC1730-22CV AIC1730-23CV AIC1730-24CV AIC1730-25CV AIC1730-26CV Marking EC18 EC19 EC20 EC21 EC22 EC23 EC24 EC25 EC26 Part AIC1730-27CV AIC1730-28CV AIC1730-285CV AIC1730-29CV AIC1730-30CV AIC1730-31CV AIC1730-32CV AIC1730-33CV Marking EC27 EC28 EC2J EC29 EC30 EC31 EC32 EC33
AIC1730
SOT-23-6W (unit:
SYMBOL
1.00 0.70 0.35 0.10 2.70 1.60
1.30 0.10 0.90 0.50 0.25 3.10 2.00
1.90 (TYP) 2.60 0.37 3.00
SOT-23-6W Marking
Part AIC1730-18CQ AIC1730-19CQ AIC1730-20CQ AIC1730-21CQ AIC1730-22CQ AIC1730-23CQ AIC1730-24CQ AIC1730-25CQ AIC1730-26CQ Marking EB18 EB19 EB20 EB21 EB22 EB23 EB24 EB25 EB26 Part AIC1730-27CQ AIC1730-28CQ AIC1730-285CQ AIC1730-29CQ AIC1730-30CQ AIC1730-31CQ AIC1730-32CQ AIC1730-33CQ Marking EB27 EB28 EB2J EB29 EB30 EB31 EB32 EB33

150mA, Noise, Dropout Linear Regulator DESCRIPTION AIC1730 n

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