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Analog Intergrations Corporation

AIC2350 Datasheet Preview

AIC2350 Datasheet

PWM Step-Down DC/DC Converter

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AIC2350
400mA Synchronous PWM/PSM Step-Down
DC/DC Converter
FEATURES
2.5V to 5.5V Input Voltage Range
400mA Guaranteed Output Current
Up to 95% Efficiency
Low RDS(ON) Internal Switche: 280m
No Schottky Diode Required
100% Duty Cycle in Low Dropout Operation
Operating Frequency: 1.5MHz
Accurate Reference 0.6V Provides Low
Output Voltages
APPLICATIONS
LCD TV
Multi-function Peripheral
Cellular Phones
CPU I/O Supplies
Cordless Phones
PDAs and Handy-Terminals
Battery-Operated Devices (1 Li-Ion or 3
NiMH/ NiCd)
APPLICATIONS CIRCUIT
DESCRIPTION
The AIC2350 is a low-noise, pulse-width-
modulated (PWM), DC-DC step-down converter.
The device is available in an adjustable version
and fixed output voltages of 1.0V, 1.2V, 1.8V,
and 3.3V.
The device features an internal synchronous
rectifier for high efficiency; it requires no external
Schottky diode. The AIC2350 is ideally suited for
Li-Ion battery applications. PWM/PSM mode
extends battery life by switching to a pulse-
skipping-modulated mode during light loads.
Shutdown mode places the device in standby,
reducing supply current to under 1µA.
Other features of the AIC2350 include high
efficiency, low dropout voltage, short circuit
protection, over temperature protection, and
over voltage protection. It is available in a small
5 pins SOT-23 package.
Fig. 1 Fixed Step-Down DC/DC Converter
Analog Integrations Corporation
Si-Soft Research Center
DS-2350G-01 20110118
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1




Analog Intergrations Corporation

AIC2350 Datasheet Preview

AIC2350 Datasheet

PWM Step-Down DC/DC Converter

No Preview Available !

AIC2350
Fig. 2 Adjustable Step-Down DC/DC Converter
ORDERING INFORMATION
AI C2350 -XX X XX XX
PAC KING T YPE
TR: TAPE & REEL
BG: BAG
PAC KAGE TYPE
V5: SOT-23-5
PIN CONFIGURATION
TOP VIEW
SOT-23-5
VOU T
5
VIN
4
G: Gree n Packa ge
OUT PUT VOLTAGE
DEFAUL T: Ad j.
10: 1.0V
12: 1.2V
18: 1.8V
33: 3.3V
TOP V IEW
12 3
EN GN D LX
Fixed version
SOT-23-5
FB VIN
54
Exam ple:
AIC2 350-3 3GV5TR
3.3 V Outp ut Version ,
in SOT-23 -5 Gre en Package
& Tape & Re el Packin g Type
AIC2 350GV5TR
Ad justa ble Versio n,
in SOT-23 -5 Gre en Package
& Tape & Re el Packin g Type
12 3
EN GND LX
A djustable version
2


Part Number AIC2350
Description PWM Step-Down DC/DC Converter
Maker Analog Intergrations Corporation
Total Page 12 Pages
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