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The AP3417B is a 1.4MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 1.2A 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 single Li-ion battery. A standard series of inductors are available from several different manufacturers optimized for use with the AP3417B. This feature greatly simplifies the design of switch-mode power supplies.
| Efficiency (%) | 94 |
|---|---|
| Frequency Typ (Hz) | 1500 |
| HS RDS(ON) (mΩ) | 250 |
| LS RDS(ON) (mΩ) | 200 |
| MaximumInput Voltage (V) | 5.5 |
| MinimumInput Voltage (V) | 2.5 |
| Output Current (mA) | 1 |
| Output Voltage (V) | 0.6 to 0.9xVIN |
| Quiescent Current Typ (mA) | 0.062 |
| Shutdown Current Typ (µA) | 0.1 |
| Type | Buck |
