AP63201WU-EVM
32V, 2A, Synchronous DC/DC Buck Converter
With Enhanced EMI Reduction
AP63201WU-EVM
Document number: Rev. 1 - 0
1 of 8
June 2019
© Diodes Incorporated
DESCRIPTION
The AP63201 is a 2A, synchronous buck
converter with a wide input voltage range of
3.8V to 32V and 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 AP63201 device is easily used by
minimizing the external component count
due to its adoption of peak current mode
control
along
with
its
integrated
compensation network.
The AP63201 has optimized designs for
Electromagnetic
Interference
(EMI)
reduction.
The
converter
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. It also has a proprietary gate
driver scheme to resist switching node
ringing without sacrificing MOSFET turn-on
and turn-off times, which further reduces
high-frequency radiated EMI noise caused
by MOSFET switching.
The device is available in a low-profile,
TSOT26 package.
FEATURES
VIN 3.8V to 32V
2A Continuous Output Current
0.8V ± 1% Reference Voltage
22µA Ultralow Quiescent Current
(Pulse Frequency Modulation)
500kHz Switching Frequency
Supports Pulse Width Modulation
(PWM)
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
o
Undervoltage Lockout
(UVLO)
o
Cycle-by-Cycle Peak
Current Limit
o
Thermal Shutdown
