LR1801L-25-SH2-R datasheet(3/5 Pages) UTC

Part #	LR1801L-25-SH2-R

Description	1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR

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Manufacturer	UTC [Unisonic Technologies]

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

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LR1801

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R502-A03.d



ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

VIN

7

V

Shutdown Input Voltage

VIN(SHDN)

-0.3~VIN

V

Maximum Operating Current (DC)

1

A

Power Dissipation (Note 3)

PD

Internally Limited

Junction Temperature

TJ

+125

°C

Storage Temperature

TSTG

-65 ~ +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

θJA

143

°C/W

Junction to Case

θJC

45

°C/W



ELECTRICAL CHARACTERISTICS (TJ = 25°C, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

VIN

2

6

V

Output Voltage (Note 4)

VOUT(E)

VIN=VOUT(S)+1V

IOUT=100mA

1.0V≤VOUT(S)<1.5V

VOUT(S)-

0.015

VOUT(S)

+

0.015

V

1.5V≤VOUT(S) ≤3.5V

VOUT(S)

x 0.99

VOUT(S)

x 1.01

V

Output Voltage Line

Regulation

△

VOUT1/

△

(VIN×VOUT)

VOUT(S)+0.5V≤VIN≤5.5V,IOUT=100mA

0.05

0.2

%/V

Output Voltage Load

Regulation

△

VOUT2

VIN=VOUT(S)+1V,1mA≤IOUT≤300mA

-20

-3

20

mV

Dropout Voltage(Note 5)

Vdrop

IOUT=300mA

1.2V≤VOUT(S)<1.5V

0.34

0.38

V

1.5V≤VOUT(S)<2.6V

0.10

0.15

2.6V≤VOUT(S) ≤3.5V

0.07

0.10

IOUT=1000mA

1.2V≤VOUT(S)<1.5V

0.70

1.5V≤VOUT(S)<2.0V

0.40

2.0V≤VOUT(S)<2.6V

0.32

2.6V≤VOUT(S) ≤3.5V

0.23

Output Current(Note 6)

IOUT

VIN≥VOUT(S)+1V

1000

(Note 8)

mA

Ground Pin Current In Normal

Operation Mode

ISS1

VIN=VOUT(S)+1V, ON/OFF pin=ON, No

Load

60

90

uA

Ground Pin Current In

Power-off Mode

ISS2

VIN=VOUT(S)+1V, ON/OFF pin=OFF,

No Load

0.1

1.0

uA

Short Circuit Current

ISC

VIN=VOUT(S)+1V, ON/OFF pin=ON,

VOUT=0V

200

mA

Output Voltage Temperature

Coefficient(Note 7)

△

VOUT/

△

(TA×VOUT)

VIN=VOUT(S)+1V,IOUT=100mA,

-40°C ≤ TA≤+85°C

±100

ppm/°C

ON/OFF Pin Input Voltage “H”

VSH

VIN=VOUT(S)+1V, RL=1.0KΩ

Determinied by VOUT output level

1.0

V

ON/OFF Pin Input Voltage “L”

VSL

0.3

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