Diodes AP63300-EVM Manual

DESCRIPTION
The AP63300/AP63301 is 3A, synchronous buck
converter with a wide input voltage range of 3.8V
to 32V. The device fully integrates a 75mΩ high-
side power MOSFET and a 40mΩ low-side power
MOSFET to provide high-efficiency step-down DC-
DC conversion.
The AP63300/AP63301 device is easily used by
minimizing the external component count due to its
adoption of peak current mode control along with
its integrated loop compensation network.
FEATURES

VIN 3.8V to 32V

3A Continuous Output Current

0.8V ± 1% Reference Voltage

22µA Ultralow Quiescent
Frequency Modulation)

500kHz Switching Frequency

Supports Pulse Frequency Modulation (PFM)
o AP63300
o Up to 88% Efficiency at 5mA Light Load

Pulse Width Modulation (PWM) Regardless of
Output Load
o AP63301

Proprietary Gate Driver Design for Best EMI
Reduction
AP63300/AP63301
Document number: DS42002 Rev. 3 - 2
3.8V TO 32V INPUT, 3A LOW IQ SYNCHRONOUS BUCK WITH
The AP63300/AP63301 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
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 a TSOT26 package.

Frequency Spread Spectrum (FSS) to Reduce
EMI
o AP63300

Low-Dropout (LDO) Mode
Current (Pulse

Precision Enable Threshold to Adjust UVLO

Protection Circuitry
o Undervoltage Lockout (UVLO)
o Output Overvoltage Protection (OVP)
o Cycle-by-Cycle Peak Current Limit
o Thermal Shutdown
1 of 11
www.diodes.com
AP63300/1-EVM
ENCHANCED EMI REDUCTION
switching. AP63300 also features
September 2019
© Diodes Incorporated