ISL78310 datasheet(6/13 Pages) INTERSIL

Part #	ISL78310

Description	High Performance 1A LDO

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Manufacturer	INTERSIL [Intersil Corporation]

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ISL78310

6

FN7810.0

February 17, 2011

ENABLE PIN CHARACTERISTICS

Turn-on Threshold

2.2V < VIN < 6V

0.3

0.8

1

V

Hysteresis (Rising Threshold)

2.2V < VOUT + 0.4V < 6V

10

80

200

mV

Enable Pin Turn-on Delay

COUT = 10µF, ILOAD = 1A

100

µs

Enable Pin Leakage Current

VIN = 6V, EN = 3V

1

µA

ADJUSTABLE INRUSH CURRENT LIMIT CHARACTERISTICS

Current limit adjust

IPD

VIN = 3.5V, EN = 0V, SS = 1V

0.5

1

1.3

mA

ICHG

-3.3

-2

-0.8

µA

PG PIN CHARACTERISTICS

VOUT PG Flag Threshold

75

85

92

%VOUT

VOUT PG Flag Hysteresis

4%

PG Flag Low Voltage

VIN = 2.5V, ISINK = 500µA

100

mV

PG Flag Leakage Current

VIN = 6V, PG = 6V

1

µA

NOTES:

11. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.

12. Dropout is defined by the difference in supply VIN and VOUT when the supply produces a 2% drop in VOUT from its nominal value.

Electrical Specifications Unless otherwise noted, VIN = VOUT + 0.4V, VOUT = 1.8V, CIN = COUT = 10µF, TJ = +25°C, ILOAD = 0A.

Applications must follow thermal guidelines of the package to determine worst case junction temperature. Please refer to “ISL78310 Schematic

Block Diagram” on page 4 and Tech Brief TB379. Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 11)

TYP

MAX

(Note 11)

UNITS

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