3.8V-32V INPUT, 3.5A Low Iq Synchronous Buck with Enhanced EMI Reduction PFM/PWM
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The AP63356/AP63357 is a 3.5A, synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 74mΩ high-side power MOSFET and a 40mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.
The AP63356/AP63357 device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated loop compensation network.
The AP63356/AP63357 design is optimized for Electromagnetic Interference (EMI) reduction. The converter features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. It also has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high-frequency radiated EMI noise caused by MOSFET switching.
The device is available in a 3mm × 2mm V-DFN3020-13 package.
Type | Buck |
---|---|
Efficiency | 96 % |
HS RDS(ON) | 83 mΩ |
LS RDS(ON) | 43 mΩ |
Frequency Typ | 450 kHz |
Minimum Input Voltage | 3.8 V |
Maximum Input Voltage | 32 V |
Output Current | 3.5 A |
Output Voltage | ADJ V |
Quiescent Current Typ | 0.258 mA |
Shutdown Current Typ | 1 µA |
Orderable Part Number | Buy from Distributor / Contact Sales | Request Samples |
---|---|---|
AP63357DV-7 | Request Sample | |
AP63357DV-EVM | Request Sample | |
AP63357QZV-7 | Request Sample |