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ISL80121IR50Z-T

1A Ultra Low Dropout Linear Regulator with Programmable Current Limiting

Intersil 

ISL80121-5

Electrical Specifications Unless otherwise noted, all parameters are established over the following specified conditions:

VIN = VOUT + 0.4V, VOUT = 5.0V, 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 “Functional Description” on page 7 and Tech Brief TB379.

Boldface limits apply over the operating temperature range, -40°C to +125°C. Pulse load techniques used by ATE to ensure TJ = TA defines

established limits. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

(Note 9) TYP (Note 9)

UNITS

ENABLE Pin Turn-on Delay

ENABLE Pin Leakage Current

SOFT-START CHARACTERISTICS

tEN

COUT = 10µF, ILOAD = 1A

VIN = 6V, ENABLE = 3V

100

µs

1

µA

Reset Pull-Down Current

Soft-Start Charge Current

PG PIN CHARACTERISTICS

IPD

ICHG

ENABLE = 0V, SS = 1V

0.5

1

1.3

mA

-3.3

-2

-0.8

µA

VOUT PG Flag Threshold

75

84

92

VOUT PG Flag Hysteresis

4

PG Flag Low Voltage

ISINK = 500µA

47

100

PG Flag Leakage Current

VIN = 6V, PG = 6V

0.05

1

NOTES:

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

10. Dropout is defined by the difference in supply VIN and VOUT when the output is below its nominal regulation.

%VOUT

%

mV

µA

5

FN7713.4

September 29, 2011

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