MP8764 ― 12A, 18V, SYNCHRONOUS STEP-DOWN CONVERTER WITH LATCH-OFF OCP

MP8764 Rev. 1.2

www.MonolithicPower.com

3

6/21/2016

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ELECTRICAL CHARACTERISTICS

Parameters

Symbol

Condition

Min

Typ

Max

Units

Supply Current

Supply Current (Shutdown)

0

1

µ

A

Supply Current (Quiescent)

760

860

960

µ

A

MOSFET

High-side Switch On Resistance

21

m

Low-side Switch On Resistance

7

m

Switch Leakage

0

1

µ

A

Current Limit

Low-side Valley Current Limit

(6)

12

A

Low-side Negative Current Limit

(6)

-4

-2.5

-1

A

Timer

Minimum On Time

(6)

30

ns

One-Shot On Time

250

ns

Minimum Off Time

(6)

180

ns

Over-voltage and Under-voltage Protection

OVP Latch Threshold

(6)

130%

OVP Non-latch Threshold

LATCH

117%

120%

123%

OVP Delay

2

µ

s

UVP Threshold

(6)

50%

Reference And Soft Start

Reference Voltage

(7)

602

611

620

mV

605

611

617

Feedback Current

50

100

nA

Soft Start Charging Current

16

20

25

µ

A

Enable And UVLO

Enable Input Low Voltage

1.1

1.3

1.5

V

Enable Hysteresis

250

mV

Enable Input Current

0

µ

A

0