Diodes Incorporated

Demoboard AP63200

Topology: Buck
Input Voltage (min.): 32.00 V
Input Voltage (max.): 32.00 V
Output 1: 12.00 V / 2.000 A

Original publication on 2017-12-11, revision December 2017 on


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 NodeRinging-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 MOSFETand 70mΩ Low Side MOSFET 500kHz Switching Frequency with 6%Frequency Spread Spectrum (FSS) Precision Enable Threshold for ProgrammableUVLO 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


  Order Code SPEC Product series C
Tol. C VR
(V (DC))
Keramiktyp Betriebstemperatur H
Technische Artikelnummer Qmin. RDC
Version Samples
885012206102 PDF WCAP-CSGP MLCCs 0603 100 ±10% 100 2.5 10 X7R Class II -55 °C up to +125 °C 0.8 X7R0603101K100DFCT10000
885012206095 PDF WCAP-CSGP MLCCs 0603 100 ±10% 50 3 X7R Class II 0.8 X7R0603104K050DFCT10000
885012006078 PDF WCAP-CSGP MLCCs 0603 68 ±5% 100 10 NP0 Class I -55 °C up to +125 °C 0.8 NP00603680J100DFCT10000 1000
74439346068 PDF WE-XHMI SMT Power Inductor 17.6 6.8 6.5 10 21.5 SMT
74439346100 PDF WE-XHMI SMT Power Inductor 26.5 10 5 7.6 16 SMT
74439344033 PDF WE-XHMI SMT Power Inductor 19.2 3.3 6 14.5 34 SMT