Automotive Micropower Linear Regulators

with Supervisor

8

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Pin Description

Enable and Hold Test Circuit

PIN

MAX6765/

MAX6766

MAX6767/

MAX6768

MAX6769/

MAX6770

MAX6771/

MAX6772

MAX6773/

MAX6774

NAME

FUNCTION

11

1

1

1

IN

Regulator Input. Bypass IN to GND with a capacitor

with a minimum value of 0.1µF.

2

2

2

2

2

GND

Ground

33

3

—

3

ENABLE

Active-High Enable Input. Drive ENABLE high to turn on

the regulator. ENABLE is internally connected to GND

through a 0.6µA current sink.

45

5

5

5

RESET

Active-Low, Open-Drain/Push-Pull Reset Output.

For the MAX6769/MAX6770, RESET asserts when

For all other versions, RESET remains low while OUT is

below the reset threshold. For all versions, RESET

remains low for the duration of the reset timeout period

after the reset conditions end.

57

7

7

7

TIMEOUT

Reset Timeout Adjust Input. Connect TIMEOUT to OUT

for the internally fixed timeout period. For an adjustable

timeout, connect a capacitor from TIMEOUT to GND.

See the Selecting Timeout Capacitor section.

6

8

8

8

8

OUT

Regulator Output. The MAX6765/MAX6766 provide

a fixed output (+1.8V, +2.5V, +3.3V, or +5V). The

MAX6767–MAX6774 provide a fixed output voltage

of +1.8V, +2.5V, +3.3V, or 5V, or adjust the output from

+1.8V to +11V. Bypass to GND with a 10µF capacitor

(min).

GND

IN

ENABLE

N

ENABLE

GATE

HOLD

OUT

OUT

MAX6767

MAX6768

TEST CIRCUIT FOR OUT AND HOLD VS. ENABLE

HOLD