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AP63300Q

AUTOMOTIVE-COMPLIANT, 32V, 3A LOW IQ SYNCHRONOUS BUCK CONVERTER

Evaluation Boards and User Guides

AP63300Q1Q-EVM-User-Guide.pdf (810 KB)

AP63300QWU-EVM-User-Guide.pdf (740 KB)

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Description

The AP63300Q/AP63301Q is an automotive-compliant, 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 AP63300Q/AP63301Q 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 AP63300Q/AP63301Q 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. The AP63300Q 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.

Feature(s)

AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1: -40°C to +125°C T_A Range
VIN: 3.8V to 32V
Output Voltage (VOUT): 0.8V to VIN
3A Continuous Output Current
8V ± 1% Reference Voltage
22µA Low Quiescent Current (Pulse Frequency Modulation)
500kHz Switching Frequency
Supports Pulse Frequency Modulation (PFM)
- AP63300Q
- Up to 88% Efficiency at 5mA Light Load
Pulse Width Modulation (PWM) Regardless of Output Load
- AP63301Q
Proprietary Gate Driver Design for Best EMI Reduction
Frequency Spread Spectrum (FSS) to Reduce EMI
- AP63300Q
Low-Dropout (LDO) Mode
Precision Enable Threshold to Adjust UVLO
Protection Circuitry
- Undervoltage Lockout (UVLO)
- Output Overvoltage Protection (OVP)
- Cycle-by-Cycle Peak Current Limit
- Thermal Shutdown
Totally Lead-Free & Fully RoHS Compliant
Halogen and Antimony Free. “Green” Device
The AP63300Q and AP63301Q are suitable for automotive applications requiring specific change control; these parts are AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

Automotive Power Systems
Automotive Infotainment
Automotive Instrument Clusters
Automotive Body Electronics and Lighting
Automotive Telematics
Advanced Driver Assistance Systems

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP)	Automotive
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