FN7810 Rev 2.00

Page 1 of 14

November 7, 2014

FN7810

Rev 2.00

November 7, 2014

ISL78310

High Performance 1A LDO

DATASHEET

The ISL78310 is a low dropout voltage, high-current, single

output LDO specified for 1A output current. This part operates

from input voltages down to 2.2V and up to 6V. The part offers

fixed and external resistor adjustable output voltages from

0.8V to 5V. Custom voltage options are available upon request.

For applications that desire to set the in-rush current to less

than the current limit of the part, or for applications that

require turn-on time control, an external capacitor can be

placed on the soft-start pin for maximum control. A supply-

independent ENABLE signal allows the part to be placed into a

low quiescent current shutdown mode. Sub-micron CMOS

process is used for this product family to deliver best-in-class

analog performance and overall value.

This CMOS LDO consumes significant lower quiescent (ground

pin) current as a function of load over bipolar LDOs, which

translates into higher efficiency and packages with smaller

footprints. Quiescent current is optimized to achieve a very fast

load transient response.

The ISL78310 is AEC-Q100 rated. The ISL78310 is rated for

the automotive temperature range (-40°C to +125°C).

Applications

•Core & I/O power

• Camera modules

• Post regulation of switched supplies

•Radio systems

• Infotainment systems

Features

• 2.2V to 6V input supply

• 130mV dropout voltage typical (at 1A)

• Fast load transient response

• Adjustable in-rush current limiting

• 58dB typical PSRR

• Power-good feature

• 500mV feedback voltage

• Supply-independent 1V enable input threshold

• Short-circuit current protection

• 1A peak reverse current

• Over-temperature shutdown

• Any cap stable with minimum 10µF ceramic

range from -40°C to +125°C

• Available in a 10 Lead DFN package

• Pb-free (RoHS compliant)

• AEC-Q100 qualified

Pin Configuration

ISL78310

(10 LD 3x3 DFN)

TOP VIEW

2

3

4

1

5

9

8

7

10

6

VOUT

VOUT

SENSE/ADJ

PG

GND

VIN

VIN

NC

ENABLE

SS

PAD