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LT1185

HARA TERISTICS

TYPICALPERFOR

Ripple Rejection vs Frequency

Ground Pin Current

INPUT-OUTPUT DIFFERENTIAL (V)

LT1185 • TPC01

TYPICAL

TEST POINTS

GUARANTEED

LIMIT

GUARANTEED

LIMIT

Internal Current Limit

INPUT VOLTAGE (V)

LT1185 • TPC02

510

VOUT = 5V

*DOES NOT INCLUDE REF CURRENT

OR OUTPUT DIVIDER CURRENT

ILOAD = 0

TJ = 25°C

Quiescent Ground Pin Current*

JUNCTION TEMPERATURE (

°C)

–50

2.37

2.38

2.39

150

LT1185 • TPC03

2.36

2.35

2.33

100

2.34

2.41

2.40

–25

125

Feedback Pin Voltage

Temperature Drift

LOAD CURRENT (A)

100

120

LT1185 • TPC04

160

140

TJ = 25°C

REGULATOR JUST AT

DROPOUT POINT

VIN – VOUT = 5V

FREQUENCY (Hz)

–20

–40

–60

–80

–100

100

10k

100k

LT1185 • TPC05

ALL OUTPUT

VOLTAGES

WITH 0.05

µF

ACROSS R2

VOUT = 5V

VIN – VOUT = 1.5V

Load Transient Response

TIME (

µs)

LT1185 • TPC06

0.1A tr,f ≤ 100ns

COUT = 2.2µF, ESR = 1Ω

COUT = 2.2µF, ESR = 2Ω

VOUT = 5V

IOUT = 1A

100mV

∆ILOAD

Output Impedance

FREQUENCY (Hz)

0.01

0.1

10k

100k

LT1183 • TPC07

0.001

OUTPUT IMPEDANCE IS

SET BY OUTPUT CAPACITOR

ESR IN THIS REGION

VOUT = 5V

IOUT = 1A

COUT = 2.2µF

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