MP5018 –5V, 1A-5A CURRENT LIMIT SWITCH WITH REVERSE CURRENT BLOCKING

AND OUTPUT OVER-VOLTAGE CLAMP

MP5018 Rev. 1.02

www.MonolithicPower.com

10

3/23/2016

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FUNCTIONAL BLOCK DIAGRAM

Charge

Pump

LDO

Current

Sense

1V

Ref

ILIMIT

VOUT

SS

Control Logic

UVLO

OVP

1.23V

EN/FAULT

4uA

8uA

80KΩ

VDD

GND

Fast Off Comp

Current Limit Amp

Soft Start

Thermal

Sense

Reverse

Comp

X10

VOUT

SAS

VDD

FLT

Logic

13ms

0.7MΩ

VDD

Logic for

ILIMIT floating

VCC

Figure 1: Functional Block Diagram