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AP64200Q

AUTOMOTIVE-COMPLIANT, 40V, 2A SYNCHRONOUS BUCK WITH ADJUSTABLE FREQUENCY

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Description

The AP64200Q is an automotive-compliant, 2A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 150mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.

The AP64200Q device is easily used by minimizing the external component count due to its adoption of peak current mode control.

The AP64200Q 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 AP64200Q 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 an SO-8EP package.

Feature(s)

  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: -40°C to +125°C TA Range
  • VIN: 3.8V to 40V
  • Output Voltage (VOUT): 0.8V to VIN
  • 2A Continuous Output Current
  • 0.8V ± 1% Reference Voltage
  • 25µA Low Quiescent Current (Pulse Frequency Modulation)
  • Adjustable Switching Frequency: 100kHz to 2.2MHz
  • External Clock Synchronization: 100kHz to 2.2MHz
  • Up to 88% Efficiency at 5mA Light Load
  • Proprietary Gate Driver Design for Best EMI Reduction
  • Frequency Spread Spectrum (FSS) to Reduce EMI
  • 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 AP64200Q is suitable for automotive applications requiring specific change control; this part is 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 Telematics
  • Automotive Lighting Control
  • 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) 40
Output Current (A) 2
Minimum Output Voltage (V) 0.8
Maximum Output Voltage (V) VIN
Quiescent Current Typ (µA) 25
Shutdown Current Typ (µA) 1
Frequency Typ (kHz) 100 to 2200
HS RDS(ON) (mΩ) 150
LS RDS(ON) (mΩ) 80
Features Enable, Light Load Efficiency, Soft-start Fixed, Frequency Adjustable, External Clock Synchronization, External Loop Compensation, UVLO Adjustable, Frequency Spread Spectrum, OVP, Overcurrent Protection, Thermal Shutdown, Synchronous Rectification

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Qty. Carrier
AP64200QSP-13 Active SO-8EP TPGP 4000 T&R Contact Sales Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free