AIC2350 Datasheet PDF - Analog Intergrations Corporation
| Part Number | AIC2350 | |
| Description | PWM Step-Down DC/DC Converter | |
| Manufacturers | Analog Intergrations Corporation | |
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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: 280mΩ
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
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AIC2350
ELECTRICAL CHARACTERISTICS
(TA=25C, VIN=3.6V unless otherwise specified.) (Note 1)
PARAMETER
CONDITIONS SYMBOL
MIN
TYP MAX UNITS
Input Voltage Range
VIN 2.5
5.5 V
Output Adjustment Range
VOUT
0.6V
VIN-0.3V
V
Reference Voltage
FB Input Current
P-Channel On-Resistance
N-Channel On-Resistance
VFB = VIN
IOUT = 0.2A
IOUT = 0.2A
VREF 0.588 0.6 0.612
V
IFB -50
50 nA
PRDS(ON)
280 390 m
NRDS(ON)
250 390 m
LX Leakage Current
VLX=0V or VLX=3.6V
-1
1 uA
Peak Inductor Current
Quiescent Current
Shutdown Supply Current
EN High-Level Input Voltage
VIN = 5V
IOUT = 0mA,
VFB=VREF + 5%
EN = GND
VIN=2.5V to 5.5V
IPK 0.5 0.6
A
IQ 65 85 A
ISHDN
0.1 1 A
VEN_H
1.5
V
EN Low-Level Input Voltage
VIN=2.5V to 5.5V
VEN_L
0.4 V
Oscillator Frequency
fOSC 1.2 1.5 1.8 MHz
Maximum Duty Cycle
Thermal Shutdown Temperature
DMAX
100
150
%
°C
Thermal Shutdown Hysteresis
25 °C
Note 1: Specifications are production tested at TA=25C. Specifications over the -40C to 85C operating tem-
perature range are assured by design, characterization and correlation with Statistical Quality Con-
trols (SQC).
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AIC2350 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AIC2350.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| AIC2350 | The function is PWM Step-Down DC/DC Converter. Analog Intergrations Corporation | |
| AIC2352 | The function is PWM/PSM Step-Down DC/DC Converter. Analog Intergrations Corporation | |
| AIC2354 | The function is PWM/PSM Step-Down DC/DC Converter. Analog Intergrations Corporation | |
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