Low-Power Dual-/Triple-Voltage SC70 µP

Supervisory Circuits

14

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PART

VOLTAGE

MONITORS

OPEN-DRAIN

RESET

PUSH-PULL

RESET

MANUAL

RESET

POWER-FAIL

INPUT/

OUTPUT

POK

OUTPUT

RSTIN

INPUT

MAX6739

1 fixed, 1 adj

—

X

X

—

—

X

MAX6740

2 fixed, 1 adj

X*

—

X*

—

—

X

MAX6741

2 fixed

X*

—

X*

—

X

—

MAX6742

1 fixed

X*

—

X*

X

—

—

MAX6743

2 fixed, 1adj

—

X

—

—

—

X

MAX6744

2 fixed

—

X

—

—

X

—

MAX6745

1 fixed

—

X

—

X

—

—

Selector Guide (continued)

*Manual reset detect on RESET output.

MAX6741

IN

UNREGULATED

DC

OUT

DC/DC

CONVERTER

IN

OUT

SHDN

DC/DC

CONVERTER

POK1

GND

RESET

CORE

SUPPLY

I/O

SUPPLY

RESET

PUSHBUTTON

SWITCH

GND

MAX6742

IN

OUT

DC/DC

CONVERTER

PFI

GND

RESET

PFO

PUSHBUTTON

SWITCH

RESET

GND

Typical Application Circuits