AP3417A - BCD Semiconductor

AP3417A 1.4MHz High Efficiency Synchronous DC-DC Buck Converter

The AP3417A is a 1.4MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 1A load with high efficiency, excellent line and load regulation. The device integrates synchronous P-channel and N-channel power MOSFET switches with low on-resistance. It is ideal for powering portable equipment that runs from a sin.

Features

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 0.6V to VIN
• ADJ Output
• Fixed 1.4MHz Frequency
• High Efficiency up to 95%
• Output Current: 1A
• Current Mode Control
• 100% Duty Cycle in Dropout
• Built-in Over Current Protection
• Built-in Short Circuit Protection
• Built-in Thermal Shutdown Protection
• Built-in UVLO Function
• Built-in Soft-start Applications
• Set-top Box
• Datacom
• Portable Device
• Smart Phone Aug. 2012 Rev. 1. 2 SOT-23-5 Figure 1. Package Type of AP3417A BCD Semiconductor Manufacturing Limited 1 Data Sheet 1A, 1.4MHz High Efficiency Synchronous DC-DC Buck .