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AP3422DNTR-G1 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AP3422DNTR-G1 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
1 / 11 page Preliminary Datasheet Dual 1.1MHz, 800mA Synchronous DC-DC Buck Converter AP3422 Sep. 2011 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 1 General Description The AP3422 contains two independent 1.1MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converters, each of them is capable of driving a 800mA load with high efficiency, excellent line and load regulation. Each converter 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 AP3422. This feature greatly simplifies the design of switch-mode power supplies. This IC is available in DFN-3×3-10 package. Features • High Efficiency: up to 95% • Output Current on Each Channel: 800mA • Input Voltage Range: 2.5V to 5.5V • Fixed 1.1MHz Frequency • 100% Duty Cycle in Dropout • Built-in Short Circuit Protection • Built-in Thermal Shutdown Function • Built-in Current Limit Function • Shutdown Current: <1 μA Applications • GPS • WiFi Card • Portable Media Player • Digital Still and Video Cameras Figure 1. Package Type of AP3422 DFN-3×3-10 |
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Similar Description - AP3422DNTR-G1 |
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