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AIC2362 Datasheet(PDF) 1 Page - Analog Intergrations Corporation |
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AIC2362 Datasheet(HTML) 1 Page - Analog Intergrations Corporation |
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1 / 10 page  AIC2362 2A 550k/1.1MHz Synchronous PWM/PSM Step-Down Converter with High Light-load Efficiency Analog Integrations Corporation Si-Soft Research Center DS-2362G-05 20150122 3A1, 1 Li-Hsin 1 st Rd., Science Park , Hsinchu 300, Taiwan , R.O.C. TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw 1 FEATURES 2.5V to 6V Input Voltage Range Adjustable Output Voltage from 0.8V to Vin 2.0A Guaranteed Output Current 93% Efficiency at Heavy Load (Vin=5V, Vout=3.3V, Iout=2.0A) 96% Efficiency at Moderate Load (Vin=5V, Vout=3.3V, Iout=1.0A) 90% Efficiency at Light Load (Vin=5V, Vout=3.3V, Iout=20mA) Low RDS(ON) Internal Switches: 110mΩ No Schottky Diode Required 100% Duty Cycle in Low Dropout Operation Fixed 550k/1.1MHz Operating Frequency Optional Soft-Start Internal Fixed 1ms Soft- Start APPLICATIONS LCD TV Portable Products Wireless and DSL Modems Solid-State Drives Battery-Operated Devices (1 Li-Ion or 3 NiMH/ NiCd) DESCRIPTION The AIC2362 is a low-noise, pulse-width- modulated (PWM), DC-DC step-down converter. The device features an internal synchronous rectifier for high efficiency; it requires no external Schottky diode. The AIC2362 is ideally suited for Li-Ion battery applications. Automatic PWM/PSM mode extends battery life and enhance efficiency by switching to a pulse-skipping- modulated mode during light load. Shutdown mode places the device in standby, reducing supply current to under 2µA. Other features of the AIC2362 include high efficiency for all load range, low dropout voltage, short circuit protection, and over temperature protection. APPLICATIONS CIRCUIT VIN 8 VCC 1 EN 5 PGND 6 GND 3 REF 2 FB 4 LX 7 AIC2362 10Ω R1 50kΩ R2 16kΩ R3 2.2uH L1 0.1uF C4 22uF C3 10uF C1 0.1uF C2 VOUT VIN ON OFF 5V 3.3V Typical Application Circuit |
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