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High Performance 2A and 3A LDOs

ISL80102, ISL80103

The ISL80102 and ISL80103 are low voltage,

high-current, single output LDOs specified for 2A and 3A

output current, respectively. These parts operate from

input voltages of 2.2V to 6V and are capable of providing

versions. Fixed output voltage options available in 0.8V,

1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V. Other custom

voltage options available upon request.

For applications that demand in-rush current less than

current limit, an external capacitor on the in-rush set pin

provides adjustment. The ENABLE feature allows the part

to be placed into a low quiescent current shutdown

mode. Sub-micron CMOS process is utilized for this

product family to deliver the best in class analog

performance and overall value.

These CMOS LDOs will consume significantly lower

quiescent current as a function of load over bipolar LDOs,

which translates into higher efficiency and the ability to

consider packages with smaller footprints. Quiescent

current is modestly compromised to enable a leading

class fast load transient response, and hence a lower

total AC regulation band for an LDO in this category.

Pin Configuration

ISL80102, ISL80103

(10 LD 3X3 DFN)

TOP VIEW

Features

• Designed for 2.2V to 6V Input Supply

Temperature Range from -40°C to +125°C

• 185mV Dropout @ 3A, 125mV Dropout @ 2A

• Fast Load Transient Response

• Rated Output Current Options of 2A and 3A

• Adjustable In-Rush Current Limiting

• 65dB Typical PSRR

300kHz

•PG Feature

•900mV Enable Input Threshold

• Short-Circuit Current Protection

• 1A Peak Reverse Current

• Over-Temperature Shutdown

• Any Cap Stable with Minimum 10µF Ceramic

• Available in a 10 Ld DFN Package and soon to follow

TO220-5, TO263-5 and SOT223-5 (1A and 2A

versions)

• Pb-Free (RoHS Compliant)

Applications*(see page 15)

• DSP, FPGA and µP Core Power Supplies

• Noise-Sensitive Instrumentation Systems

• Post Regulation of Switched Mode Power Supplies

• Industrial Systems

•Medical Equipment

• Telecommunications and Networking Equipment

•Servers

• Hard Disk Drives (HD/HDD)

2

3

4

1

5

9

8

7

10

6

SENSE/ADJ

PG

GND

DNC

ENABLE

SS

September 30, 2009

FN6660.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2009. All Rights Reserved

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