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AIC2362 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Analog Intergrations Corporation - PWM/PSM Step-Down Converter

شماره قطعه AIC2362
شرح مفصل PWM/PSM Step-Down Converter
تولید کننده Analog Intergrations Corporation 
آرم Analog Intergrations Corporation 


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AIC2362 شرح
AIC2362
2A 550k/1.1MHz Synchronous PWM/PSM
Step-Down Converter with High Light-load Efficiency
FEATURES
DESCRIPTION
2.5V to 6V Input Voltage Range
The AIC2362 is a low-noise, pulse-width-
Adjustable Output Voltage from 0.8V to Vin
modulated (PWM), DC-DC step-down converter.
2.0A Guaranteed Output Current
The device features an internal synchronous
93% Efficiency at Heavy Load
rectifier for high efficiency; it requires no external
(Vin=5V, Vout=3.3V, Iout=2.0A)
Schottky diode. The AIC2362 is ideally suited for
96% Efficiency at Moderate Load
Li-Ion battery applications. Automatic PWM/PSM
(Vin=5V, Vout=3.3V, Iout=1.0A)
mode extends battery life and enhance
90% Efficiency at Light Load
efficiency by switching to a pulse-skipping-
(Vin=5V, Vout=3.3V, Iout=20mA)
Low RDS(ON) Internal Switches: 110m
modulated mode during light load. Shutdown
mode places the device in standby, reducing
No Schottky Diode Required
supply current to under 2µA.
100% Duty Cycle in Low Dropout Operation
Other features of the AIC2362 include high
Fixed 550k/1.1MHz Operating Frequency
efficiency for all load range, low dropout voltage,
Optional Soft-Start Internal Fixed 1ms Soft-
short circuit protection, and over temperature
Start
protection.
APPLICATIONS
LCD TV
Portable Products
Wireless and DSL Modems
Solid-State Drives
Battery-Operated Devices (1 Li-Ion or 3
NiMH/ NiCd)
APPLICATIONS CIRCUIT
VIN
8 VIN
LX 7
L1
2.2uH
5V
R1
10
1 VCC
FB 4
5
ON OFF
EN
REF 2
C2
C1 0.1uF
6 PGND GND 3
10uF AIC2362
C4
0.1uF
VOUT
R2 3.3V
50k
R3
16kC3
22uF
Typical Application Circuit
Analog Integrations Corporation
Si-Soft Research Center
3A1, 1 Li-Hsin 1st Rd., Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
DS-2362G-05 20150122
www.analog.com.tw
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