UM14242Y datasheet(6/10 Pages) UNIONSEMI

Part #	UM14242Y

Description	300mA, Low Consumption, Wide Input Voltage Linear Regulator

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Manufacturer	UNIONSEMI [Union Semiconductor, Inc.]

Direct Link	http://www.union-ic.com

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6 / 10 page

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http://www.union-ic.com

Rev.05 Dec.2013

6 / 10

UM142xx

Electrical Characteristics

(Test conditions: CIN=1.0μF, COUT=1.0μF, TA=25°C, unless otherwise noted)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

VIN

Input Voltage

12

V

VOUT

Output Voltage

VIN =Set VOUT+1V

1mA≤IOUT≤10mA

VOUT

×0.98

VOUT×

1.0

VOUT

×1.02

V

IOUT (Max.)

(Note 2)

Maximum Output Current

VIN -VOUT=1V

300

mA

VDROP

Dropout Voltage

IOUT=150mA

270

mV

Output Voltage Accuracy

IOUT=300mA

-3

+3

%

V

△ out

V

△ in·Vout

Line Regulation

IOUT=10mA

4V ≤ VDD≤ 6V

0.05

0.2

%/V

V

△ out

Load Regulation

VIN=Set VOUT+1V

1mA≤IOUT≤300mA

60

mV

IS

Supply Current

VIN =Set VOUT+1V

VOUT Floating

8

15

μA

V

△ out

T

△ ·Vout

Output Voltage Noise

IOUT=10mA

±100

ppm/℃

PSRR

Power Supply Ripple

Rejection

F=100Hz,

Ripple=0.5Vp-p

VIN=Set VOUT+1V

60

dB

Output Noise

BW=10Hz~100KH

z

44

uVrms

Note 2: The maximum power rating of each package is constant, so along with the change of ILOAD,

the VIN-VOUT should be controlled to a certain range to ensure the normal operation.

Typical Application Circuit

Note 3: Input Capacitor (CIN=1uF) is recommended in all applications.

Note 4: Output Capacitor (COUT=1uF/6.8uF) is recommended in all applications to assure the

stability of circuit. 1uF Tantalum capacitor or 6.8uF ceramic capacitor is recommended.

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