Diodes Incorporated


2A, synchronous buck converter with up to 32V wide input voltage range

Topologie: Buck
Eingangsspannung (min.): 32.00 V
Eingangsspannung (max.): 32.00 V
Ausgang 1: 12.00 V / 2.000 A

Erstveröffentlichung am 22.11.2017, Version 1.0 vom


The AP63200 is a 2A, synchronous buck converter with up to 32V wide input voltage range, which fully integrates a 140mΩ high-side MOSFET and a 70mΩ low-side MOSFET to provide high efficiency step-down DC/DC conversion. The AP63200 adopts peak current mode control with the integrated compensation network, which makes AP63200 easily to be used by minimizing the off-chip component count. The AP63200 supports the Pulse Skipping Modulation (PSM) with typical 22uA Ultra-low Quiescent and achieved high efficient performance at light load conditions.The AP63200 is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The AP63200 features Frequency Spread Spectrum (FSS) with ±6% jittering span of the 500 kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI. The converter has proprietary designed gate driver scheme to resist switching node ringing without sacrificing MOSFET turn on and turn off time, which further erases high frequency radiation EMI noise caused by the MOSFETs hard switching.The AP63200 offers output overvoltage protection, cycle-by-cycle peak current limit, and thermal shutdown protection. The device is available in a low-profile TSOT23-6 package.


  • EMI Reduction with Switching Node Ringing-free 3.8V-32V Wide Input Voltage Range Up to 2A Continuous Output Load Current 0.8V ±1%Feedback Reference Voltage 22μA (Typ) No Load Quiescent Current Shutdown Current: <1μA Fully Integrated 140mΩ High Side MOSFET and 70mΩ Low Side MOSFET 500kHz Switching Frequency with 6% Frequency Spread Spectrum (FSS) Precision Enable Threshold for Programmable UVLO Threshold and Hysteresis Low Dropout Mode Operation No External Compensation Required 80ns Minimum On-time ULQ PSM in Light Load Condition 4ms Built in Soft Start Time Current Limit Protection Short Circuit Protection Over Output Voltage Protection Thermal Shutdown


  Artikel Nr. SPEC Produktserie RDC
Version Muster
74439346100 PDF WE-XHMI SMT Speicherdrossel 26.5 10 5 7.6 16 SMT
74439344033 PDF WE-XHMI SMT Speicherdrossel 19.2 3.3 6 14.5 34 SMT
74439346068 PDF WE-XHMI SMT Speicherdrossel 17.6 6.8 6.5 10 21.5 SMT