Preliminary Datasheet

LP3987H

LP3987H – 02 Version 1.2 May.-2013

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Page 4 of 9

Electrical Characteristics

(VIN = VOUT + 1V, Cin = Cout = 1µF, TA = 25° C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ.

Max

Units

Output Voltage Accuracy

−2

--

+2

%

Output Current

Iout

VEN=VIN, VIN>2.5V

600

mA

Current Limit

800

mA

Quiescent Current

VEN≥1.4V,Output floating

90

130

μA

Dropout Voltage

50

68

mV

150

200

Line Regulation

VIN=(VOUT+1V) to 5.5V,

0.2

%

Load Regulation

ΔLOAD

0.2

%

Standby Current

VEN = GND, Shutdown

0.01

1

μA

EN Input Bias Current

VEN = GND or VIN

0

100

nA

EN Threshold

Logic-Low

Voltage

VIN = 3V to 5.5V,

Shutdown

0.4

V

Logic-High

Voltage

VIN = 3V to 5.5V,

Start-Up

1.4

Output Noise Voltage

10Hz to 100kHz,

100

uVRMS

Power Supply

f = 1kHz

PSRR

-80

dB

Rejection Rate

f = 10kHz

Cout = 1µF,

-68

Thermal Shutdown Temperature

165

°C