Diodes AP63201WU-EVM User Manual

AP63201WU-EVM

32V, 2A, Synchronous DC/DC Buck Converter

With Enhanced EMI Reduction

AP63201WU-EVM

Document number: Rev. 1 - 0

1 of 8

www.diodes.com

June 2019

© Diodes Incorporated

DESCRIPTION

FEATURES

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 low­side power MOSFET to provide high­efficiency 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

 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

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.

 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

AP63201WU-EVM

32V, 2A, Synchronous DC/DC Buck Converter

With Enhanced EMI Reduction

AP63201WU-EVM

Document number: Rev. 1 - 0

2 of 8

www.diodes.com

June 2019

© Diodes Incorporated

APPLICATIONS
FUNCTIONAL BLOCK

Symbol

Parameter

Rating

Unit

VIN

Supply Voltage

-0.3 to +35.0 (DC)

V

-0.3 to +40.0 (400ms)

VSW

Switch Node Voltage

-1.0 to VIN + 0.3 (DC)

V

-2.5 to VIN + 2.0 (20ns)

 12V and 24V Distributed Power Bus Supplies
 Flat Screen TV Sets and Monitors

 Power Tools and Laser Printers
 White Goods and Small Home Appliances
 FPGA, DSP, and ASIC Supplies
 Home Audio
 Network Systems
 Set Top Boxes
 Gaming Consoles
 Consumer Electronics

ABSOLUTE MAXIMUM RATINGS

Figure 1. Functional Block Diagram

AP63201WU-EVM

32V, 2A, Synchronous DC/DC Buck Converter

With Enhanced EMI Reduction

AP63201WU-EVM

Document number: Rev. 1 - 0

3 of 8

www.diodes.com

June 2019

© Diodes Incorporated

V

BST

Bootstrap Voltage

VSW - 0.3 to VSW + 6.0

V

VFB

Feedback Voltage

-0.3 to +6.0

V

VEN

Enable/UVLO Voltage

-0.3 to +35.0

V

TST

Storage Temperature

-65 to +150

°C

TJ

Junction Temperature

+150

°C

TL

Lead Temperature

+260

°C

ESD Susceptibility

HBM

Human Body Mode

2000

V

CDM

Charge Device Model

1000

V

Symbol

Parameter

Min

Max

Unit

VIN

Supply Voltage

3.8

32 V TA

Operating Ambient Temperature Range

-40

+85

°C

TJ

Operating Junction Temperature Range

-40

+125

°C

RECOMMENDED OPERATING CONDITIONS

EVALUATION BOARD

Figure 2. AP63201WU-EVM