1-Cell to 3-Cell Boost with True Load Disconnect, 3.3V, 5V, or Adjustable Output

Impala Linear Corporation

2

(408) 574-3939

www.impalalinear.com

Oct 1999

ILC6382 1.5

Pin Number

Pin Name

Pin Description

1

Inductor input. Inductor L connected between this pin and the battery

2

Connect directly to battery

3

LBI/SD

Low battery detect input and shutdown. Low battery detect threshold is set with this pin

using a potential divider. If this pin is pulled to logic low then the device will shutdown.

4

SYNC

this pin will override the internal 300kHz oscillator. If the SYNC function is unused then

pin 4 should be connected to ground

5

POK

(ILC6382CIR-XX)

This open drain output pin will go high when output voltage is within regulation,

(ILC6382CIR-ADJ)

This pin sets the adjustable output voltage via an external resistor divider network. The

formula for choosing the resistors is shown in the “Applications Information“ section.

6

LBO

This open drain output will go low if the battery voltage is below the low battery

threshold set at pin 3

7

GND

Connect this pin to the battery and system ground

8

This is the regulated output voltage

ILC6382CIR-33

3.3V output, MSOP-8 package

ILC6382CIR-50

5V output, MSOP-8 package

ILC6382CIR-ADJ

Adjustable output, MSOP-8 package

MSOP

(TOP VIEW)

ILC6382CIR-XX

SYNC

LB/SD

V

IN

L

X

1

2

3

4

5

6

7

8

V

OUT

GND

LBO

POK

SYNC

LB/SD

V

IN

L

X

1

2

3

4

5

6

7

8

V

OUT

GND

LBO

V

FB

MSOP

(TOP VIEW)

ILC6382CIR-ADJ

Pin-Package Configurations

Pin Functions ILC6382