500mA Low-Dropout

Linear Regulator in µMAX

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3

ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RESET OUTPUT

Reset Output Low Voltage

RST sinking 1mA

0.01

0.1

V

Operating Voltage Range for

Valid Reset

RST sinking 100

µA

1.0

5.5

V

RST Output High Leakage

Current

100

nA

RST Threshold

90

93

96

%

RST Release Delay

Rising edge of OUT to rising edge of RST

1.5

4.5

8

ms

THERMAL PROTECTION

Thermal Shutdown Temperature

170

°C

Thermal Shutdown Hysteresis

20

°C

PARAMETER

SYMBOL

CONDITIONS

MIN

MAX

UNITS

Input Voltage

2.5

5.5

V

Input Undervoltage Lockout

Rising or falling

2.0

2.3

V

-2

+2

Output Voltage Accuracy

(Preset Mode)

-3

+3

%

Adjustable Output Voltage

Range

1.25

5

V

SET Voltage Threshold

(Adjustable Mode)

1.212

1.288

V

Maximum Output Current

500

Short-Circuit Current Limit

0.55

1.8

A

SET Dual Mode Threshold

50

150

mV

SET Input Bias Current

-100

+100

nA

Ground-Pin Current

250

µA

225

250

Dropout Voltage (Note 1)

360

mV

Line Regulation

-0.15

+0.15

%/V

Load Regulation

1.0

%

SHUTDOWN

Shutdown Supply Current

15

µA

1.6

SHDN Input

Threshold

0.6

V

SHDN Input Bias Current

SHDN = IN or GND

100

nA