EV171-S-00A

Small, Universal Input

Non-Isolated Off-Line Regulator

Evaluation Board

EV171-S-00A Rev.1.0

www.MonolithicPower.com

1

9/23/2015

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV171-S-00A Evaluation Board is designed

to demonstrate the capabilities of MP171. The

MP171 is a primary-side constant voltage

regulator providing accurate constant voltage

(CV)

regulation

without

Opto-coupler.

It

supports Buck, Buck-Boost, Boost and Flyback

topologies.

The EV171-S-00A Evaluation Board is designed

as Buck application. EV171-S-00A typically

drives 5V/50mA load from 85VAC to 265VAC, at

60/50Hz.

The EV171-S-00A has an excellent efficiency

and meets 2kV IEC61000-4-5 surge immunity

and EN55022 conducted EMI requirements.

MP171 features various protections, including

thermal shutdown (TSD), VCC under-voltage

lockout (UVLO), over-load protection (OLP),

short- circuit protection (SCP), and open loop

protection.

MP171 is available in TSOT23-5 and SOIC8

package.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

85 to 265

VAC

Output Voltage

5

V

Output Current

50

mA

FEATURES

• Primary-Side non-isolated Constant Voltage

(CV) control

• Integrated 700V MOSFET

• <100mW no-load power consumption

• Peak-Current control with peak current

compression

• Low VCC operating current

• Limited maximum frequency

• Frequency foldback

• Multiple protections: SCP, OLP, open-loop

protection, TSD, and VCC UVLO

• Low cost and simple external circuit

• Internally biased VCC

APPLICATIONS

• Home appliance, and consumer electronics

• Home automation

• Standby power

All MPS parts are lead-free, halogen free, and adhere to the RoHS directive.

For MPS green status, please visit MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are Registered

Trademarks of Monolithic Power Systems, Inc.

Warning:

Although this board is designed to satisfy safety

requirements, the engineering prototype has not been

agency approved. Therefore, all testing should be performed

using an isolation transformer to provide the AC input to the

prototype board.