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| Product Brief 1.1MHz, 650mA SYNCHRONOUS DC-DC BUCK CONVERTER Description The AP3406 is a 1.1MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 650mA load with high efficiency, excellent line and load regulation. The device integrates a main switch and a synchronous switch without an external Schottky diode. It is ideal for powering portable equipment that runs from a single Li-ion battery. A standard series of inductors are available from several different manufacturers optimized for use with the AP3406. This feature greatly simplifies the design of switch-mode power supplies. This IC is available in TSOT-23-5 and SOT-23-5 packages. AP3406 Parametric Table Input Voltage Range (V) Maximum Output Current (Min) (mA) Feedback Voltage (V) Oscillator Frequency (MHz) Efficiency @200mA (%) VIN=4.2V, VOUT=3.3V VIN=3.6V, VOUT=1.8V 2.5 to 5.5 650 0.6 1.1 95 92 Features * * * * * * * * * * High Efficiency: up to 95% Output Current: 650mA Input Voltage Range: 2.5V to 5.5V Fixed 1.1MHz Frequency Current Mode Control 100% Duty Cycle in Dropout Built-in Short Circuit Protection Built-in Thermal Shutdown Function Built-in Current Limit Function Shutdown Current: <1A Benefits * * * High Efficiency High Output Current Easy to Use Additional Available Materials * * * * * * Samples Preliminary Datasheet Demo Board Demo Board Manual Application Note ESD Report Applications * * * * GPS WiFi Card Portable Media Player Digital Still and Video Cameras Jun. 2008 1 BCD Semiconductor Manufacturing Limited Product Brief 1.1MHz, 650mA SYNCHRONOUS DC-DC BUCK CONVERTER Pin Configuration TSOT-23-5/SOT-23-5 AP3406 EN GND SW 1 2 3 5 FB 4 VIN Ordering Information Example Temperature Range -40 to 85C -40 to 85C Part Number Marking ID Package TSOT-23-5 SOT-23-5 Green AP3406KT-ADJTRG1 AP3406K-ADJTRG1 L1B FBC Green Packing Type Tape & Reel Tape & Reel Detailed information please refer to the relevant datasheet. Sales Office: Shanghai No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China Tel : 86-21-24162266 Fax : 86-21-24162277 Taiwan 4F, 298-1 Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel : 886-2-2656-2808 Fax : 886-2-2656-2806 USA 30920 Huntwood Ave. Hayward, CA 94544, USA Tel : +1-510-324-2988 Fax : +1-510-324-2788 Shenzhen Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel : 86-755-8826 7951 Fax : 86-755-8826 7865 Jun. 2008 2 BCD Semiconductor Manufacturing Limited |
Price & Availability of AP3406
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