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.
|Compliance(Only Automotive supports PPAP)||Standard|
|Minimum Input Voltage (V)||3.8|
|Maximum Input Voltage (V)||32|
|Output Current (A)||3.5|
|Minimum Output Voltage (V)||0.8|
|Maximum Output Voltage (V)||VIN|
|Quiescent Current Typ (µA)||22|
|Shutdown Current Typ (µA)||1|
|Frequency Typ (kHz)||450|
|HS RDS(ON) (mΩ)||74|
|LS RDS(ON) (mΩ)||40|
|Features||Enable,Light Load Efficiency,Power-Good,Soft-start Fixed,Internal Loop Compensation,External Loop Compensation,UVLO Adjustable,Frequency Spread Spectrum,UVP,Overcurrent Protection,Thermal Shutdown,Synchronous Rectification|
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
|PCN #||Issue Date||Implementation Date||Subject|
|PCN-2605||2023-03-09||2023-06-09||Qualified Additional Cu Pillar Bump Site and Bill of Materials (BOM) Lead Frame Material|