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AIC2309

Analog Intergrations Corporation
Part Number AIC2309
Manufacturer Analog Intergrations Corporation
Description 1A Dual Synchronous Step-down DC/DC Converter
Published Oct 5, 2016
Detailed Description AIC2309 1A Dual Synchronous Step-down DC/DC Converter  FEATURES  Dual 1A Output  2.5V to 5.5V Input Range  Accurate...
Datasheet PDF File AIC2309 PDF File

AIC2309
AIC2309

Overview
AIC2309 1A Dual Synchronous Step-down DC/DC Converter  FEATURES  Dual 1A Output  2.
5V to 5.
5V Input Range  Accurate Reference 0.
6V Provides Low Out- put Voltages  Adjustable Output Voltage  Up to 95% Efficiency  Stable with Low ESR Output Ceramic Ca- pacitors  No Schottky Diode Required.
 65µA Quiescent Current per Channel.
 100% Duty Cycle in Low Dropout Operation.
 1.
5MHz Fixed-Frequency PWM Operation  APPLICATIONS  Digital Still Cameras  Cellular Phones  Wireless and DSL Modems  Notebook Chipset Supplies.
 PDAs and Handy-Terminals  Battery-Operated Devices (1 Li-Ion or 3 NiMH/ NiCd).
 DESCRIPTION The AIC2309 is a dual output, low-noise, pulse-width-modulated (PWM), DC-DC stepdown converter.
It powers logic and transmitters in small wireless systems such as cellular phones, communicating PDAs, and handy-terminals.
The device features an internal synchronous rectifier for high efficiency; it requires no external Schottky diode.
Internally fixedfrequency 1.
5MHz operation provides easy post-filtering and allows the use of small inductors and capacitors.
Shutdown mode places the device in standby, reducing supply current to under 1µA.
.
Other features of the AIC2309 include high efficiency, soft start, over temperature protection, and over current protection.
It is available in a space-saving 12-pin DFN.
 TYPICAL APPLICATIONS CIRCUIT Fig.
1 Adjustable Output Voltage Step-Down DC/DC Converter Analog Integrations Corporation Si-Soft Research Center 3A1, No.
1, Li-Hsin Rd.
I , Science Park , Hsinchu 300, Taiwan , R.
O.
C.
TEL: 886-3-5772500 FAX: 886-3-5772510 DS-2309G-01 20121008 www.
analog.
com.
tw 1 AIC2309 Fig.
2 Fixed Output Voltage Step-Down DC/DC Converter 2 AIC2309  ORDERING INFORMATION AIC230 9-XXXXXXX PACKING TYPE TR: TAPE & REEL B G: BA G PACKAGE TYPE DF: DFN-12 wit h he at sin k (3 x3 x0.
75-0.
4 5mm ) G: Green Package Outpu t V olta ge: Vou t1/V out2 Def ault Ad justa ble -ZK:3 .
3V/1.
8V -ZE:3 .
3V/1.
2V -RK:2.
5V/1.
8 V PIN CO NFIGURA...


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