L1138L-XX-AB5-R datasheet(4/7 Pages) UTC

4 / 7 page

L1138

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 7

www.unisonic.com.tw

QW-R502-323.d

ABSOLUTE MAXIMUM RATING(Ta = 25°C, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

VIN

VSS -0.3~VSS+7

Input Voltage

VON/OFF

VSS -0.3~VIN+0.3

Output Voltage

VOUT

VSS -0.3~VIN+0.3

Power Dissipation

Internally limited

Operating Temperature

TOPR

-40~+85

°C

Storage Temperature

TSTG

-40~+125

°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.

ELECTRICAL CHARACTERISTICS (Ta = 25°C, VIN=VOUT+1V, unless otherwise specified)

Parameter

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Input Voltage

VIN

6.5

Output Voltage (Note 1)

VOUT(E)

VIN =VOUT(S)+1.0V,IOUT =100mA

-1%

+1%

Line Regulation

OUT

OUT1

ΔV

VOUT(S) + 0.5V ≤VIN ≤6.5V,

IOUT = 100mA

0.05

0.3

%/V

Load Regulation

ΔVOUT2

VIN = VOUT(S) + 1.0 V,

1.0mA ≤IOUT ≤300mA

100

Output Current (Note 2)

IOUT

VIN ≤VOUT(S)+1.0 V

800

Operation

ISS1

VIN = VOUT(S) +1.0 V,

ON/OFF pin = ON, no load

160

µA

Current Consumption

During

Shutdown

ISS2

VIN = VOUT(S) + 1.0 V,

ON/OFF pin = OFF, no load

0.1

1.0

µA

Short-Circuit Current

ISHORT

VIN = VOUT(S) + 1.0 V,

ON/OFF pin = ON, VOUT = 0 V

350

VOUT(S) =1.2V

0.8

1.0

VOUT(S) =2.5V

0.15

0.22

VOUT(S) =2.8V

0.15

0.22

Dropout Voltage (Note 3)

IOUT = 300mA

VOUT(S) =3.5V

0.12

0.18

Temperature Coefficient of

Output Voltage

TCVO

VIN = VOUT(S) +1.0V,

IOUT = 10mA, -40°C≤ Ta ≤85°C

±150

ppm/°

1.2 V ≤VOUT(S)≤ 3.0 V

Power Supply Rejection

PSRR

VIN= VOUT(S)+1.0 V

f = 1.0kHz,

IOUT = 100 mA

ΔVrip = 0.5Vrms

3.1 V ≤VOUT(S)≤ 5.5 V

High

VSH

VIN = VOUT(S) +1.0V

1.5

Shutdown Pin Input

Voltage

Low

VSL

VIN = VOUT(S) + 1.0V

0.3

High

ISH

VIN = 6.5V, VON/OFF = 6.5V

-0.1

0.1

µA

Shutdown Pin Input

Current

Low

ISL

VIN = 6.5V, VON/OFF = 0V

-0.1

0.1

µA

Detection

TSD

Junction temperature

150

°C

Thermal Shutdown

Temperature

Release

TSR

Junction temperature

120

°C

Notes: 1.VOUT(S): Specified output voltage.

VOUT(E): Actual output voltage at the fixed load

When fixing( IOUT= 100mA) and inputting VOUT(S) + 1.0 V

2.This output current means the one at which the output voltage becomes 98% of VOUT(E) after gradually

increasing the output current.

3.The dropant voltage is detmed as VIN - VOUT, which is measured when VOUT is VOUT(normal) × 98%

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