ISL78301

2

FN6705.2

April 7, 2015

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Block Diagram

Pin Configuration

ISL78301

(14 LD HTSSOP)

TOP VIEW

REFERENCE

+

SOFT-START

CONTROL

LOGIC

THERMAL

SENSOR

+

-

EA

VIN

EN

GND

VOUT

FET DRIVER

WITH CURRENT

LIMIT

ADJ

1

2

3

4

14

13

12

11

5

6

7

10

9

8

NC

IN

NC

NC

NC

NC

EN

OUT

NC

ADJ/NC

NC

NC

NC

GND

THERMAL

PAD

Pin Descriptions

PIN NUMBER

PIN NAME

DESCRIPTION

1, 3, 4, 5, 6, 9, 10,

11, 13

NC

Pins have internal termination and can be left unconnected. Connection to ground is optional.

2

IN

Input voltage pin. A minimum 0.1µF ceramic capacitor is required for proper operation.

7

EN

Enable pin. High on this pin enables the device.

8

GND

Ground pin.

12

ADJ/NC

In the adjustable output voltage option, this pin is connected to the external feedback resistor divider which sets

the LDO output voltage. In the 3.3V and 5V options, this pin is not used and can be connected to ground.

14

OUT

Regulated output voltage. A 10µF ceramic capacitor is required for stability.

EPAD

It is recommended to solder the EPAD to the ground plane.