Diodes Incorporated

AP64500
Demoboard AP64500SP-EVM

3.8V TO 40V, 5A LOW IQ SYNCHRONOUS BUCK

Topologie: Buck
Eingangsspannung (min.): 3.80 V
Eingangsspannung (max.): 40.00 V
Ausgang 1: 24.00 V / 5.000 A

Beschreibung

The AP64500 is a 5A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 45mΩ highside power MOSFET and a 20mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.The AP64500 device is easily used by minimizing the externalcomponent count due to its adoption of peak current mode control.The AP64500 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. AP64500 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.

Merkmale

  • VIN 3.8V to 40V•5A Continuous Output Current•0.8V ± 1% Reference Voltage•25μA Low Quiescent Current (Pulse Frequency Modulation)•Programmable Switching Frequency: 100kHz to 2.2MHz•External Clock Synchronization: 100kHz to 2.2MHz•Up to 85% 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 (Notes 1 & 2)•Halogen and Antimony Free. “Green” Device (Note 3)

Artikel

  Artikel Nr. SPEC Produktserie C
(nF)
Tol. C VR
(V (DC))
DF
(%)
Keramiktyp H
(mm)
Technische Artikelnummer RISO
(GΩ)
Betriebstemperatur Muster
7447797360 PDF
885012206095 PDF WCAP-CSGP MLCCs 0603 100 ±10% 50 3 X7R Klasse II 0.8 X7R0603104K050DFCT10000
885012206071 PDF WCAP-CSGP MLCCs 0603 100 ±10% 25 3.5 X7R Klasse II 0.8 X7R0603104K025DFCT10000 5 -55 °C up to +125 °C