3.8V-32V INPUT, 3A Low Iq Synchronous Buck with Enhanced EMI Reduction
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The AP63300/AP63301 is a 3A, synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 75mΩ high-side power MOSFET and a 40mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.
The AP63300/AP63301 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 AP63300/AP63301 design is optimized for Electromagnetic Interference (EMI) reduction. The device 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. AP63300 also 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.
The device is available in a TSOT26 package.
- AP63300
- Up to 88% Efficiency at 5mA Light Load
- AP63301
- AP63300
- Undervoltage Lockout (UVLO)
- Output Overvoltage Protection (OVP)
- Cycle-by-Cycle Peak Current Limit
- Thermal Shutdown
Compliance(Only Automotive supports PPAP) | Standard |
---|---|
Type | Buck |
Minimum Input Voltage (V) | 3.8 |
Maximum Input Voltage (V) | 32 |
Output Current (A) | 3 |
Minimum Output Voltage (V) | 0.8 |
Maximum Output Voltage (V) | VIN |
Quiescent Current Typ (µA) | 22 |
Shutdown Current Typ (µA) | 1 |
Frequency Typ (kHz) | 500 |
HS RDS(ON) (mΩ) | 75 |
LS RDS(ON) (mΩ) | 40 |
Features | Enable,Light Load Efficiency,Soft-start Fixed,Internal Loop Compensation,UVLO Adjustable,Frequency Spread Spectrum,OVP,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 |