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Back to DC-DC Buck Converters - Automotive

AP63200Q

Automotive Compliant, 32V, 2A Low IQ Synchronous Buck Converter.

Evaluation Boards and User Guides

AP63200QWU-EVM-User-Guide.pdf (435 KB)

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Description

The AP63200Q/AP63201Q/AP63203Q/AP63205Q is an automotive compliant, 2A, synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 125mΩ high-side power MOSFET and a 68mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP63200Q/AP63201Q/AP63203Q/AP63205Q 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 AP63200Q/AP63201Q/AP63203Q/AP63205Q 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 AP63200Q/AP63203Q/AP63205Q 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)
- 8V to VIN: AP63200Q and AP63201Q
- Fixed 3.3V: AP63203Q
- Fixed 5V: AP63205Q
2A Continuous Output Current
8V ± 1% Reference Voltage
22µA Low Quiescent Current (Pulse Frequency Modulation)
Switching Frequency
500kHz: AP63200Q and AP63201Q
1100kHz: AP63203Q and AP63205Q
Supports Pulse Frequency Modulation (PFM)
- AP63200Q, AP63203Q, and AP63205Q
- Up to 88% Efficiency at 5mA Light Load
Pulse Width Modulation (PWM) Regardless of Output Load
- AP63201Q
Proprietary Gate Driver Design for Best EMI Reduction
Frequency Spread Spectrum (FSS) to Reduce EMI
- AP63200Q, AP63203Q, and AP63205Q
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 (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
The AP63200Q, AP63201Q, AP63203Q, and AP63205Q 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/

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)	2
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)	125
LS RDS(ON) (mΩ)	68
Features	Enable,Light Load Efficiency,Soft-start Fixed,Internal Loop Compensation,UVLO Adjustable,Frequency Spread Spectrum,OVP,Overcurrent Protection,Thermal Shutdown,Synchronous Rectification