AP3406 Datasheet | BCD Semiconductor

Product Brief 1.1MHz, 650m A SYNCHRONOUS DC-DC BUCK CONVERTER Description .. Parametric Table Input Voltage Range (V) Maximum Output Current (Min) (m A) Feedback Voltage (V) Oscillator Frequency (MHz) 2.5 to 5.5 650 0.6 1.1 95 92 The AP3406 is a 1.1MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 650m A 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. Efficiency @200m A (%) VIN=4.2V, VOUT=3.3V VIN=3.6V, VOUT=1.8V Features - - - - - - - - - - High Efficiency: up to 95% Output Current: 650m A 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: <1µA 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 Wi Fi Card Portable Media Player Digital Still and Video Cameras Jun. 2008 1 BCD Semiconductor Manufacturing...