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http://www.union-ic.com

Rev.01 Sep.2010

3/7

UM177XX

Electrical Characteristics

Over recommended operating free-air temperature range (unless otherwise noted)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Input Voltage Range

6.0

V

Input Under Voltage

Lockout*

2.0

2.6

V

90

Operating Quiescent

Current

100

μA

I

SHDN

___________

Shutdown Leakage

Current

1

μA

ESD Rating

Human Body Mode

2

KV

Output Current

500

mA

-1

+1

-2

+2

Output Voltage

Accuracy

-2.5

+2.5

%

Dropout Voltage

250

400

mV

Output Current Limit

700

mA

Input Reverse

Leakage Current

(OUT to IN Leakage

Current)

chip active

0.01

1.5

μA

t

Startup Time

Response

20

μs

SHDN

___________

Input Low

Voltage

V

SHDN

___________

Input High

Voltage

V

SHDN

___________

Input Current

SHDN

___________

-1

0.1

+1

μA

Thermal-Shutdown

Temperature

160

℃

Thermal-Shutdown

Hysteresis

20

℃

Line Regulation

0.09

%/V

Load Regulation

0.2

%

Output Voltage Noise

10Hz to 100KHz

75

MS

F=100Hz

70

F=1KHz

65

F=10KHz

50

PSRR

Power Supply Ripple

Rejection

F=100KHz

40

dB

*Only UM17735/UM17733/UM17730/UM17728/UM17725 has this function.