LR9273DG-AD-S08-R datasheet(6/9 Pages) UTC

6 / 9 page

LR9273

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

6 of 9

www.unisonic.com.tw

QW-R502-A30.a



ELECTRICAL CHARACTERISTICS

LR9273B/D-xx (Adjustable Output Voltage Type)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

VIN

1.4

6.0

Supply Current

ISS

VOUT=VADJ, VIN=2.0, VCE=VIN

100

µA

Standby Current

Istandby VIN=6.0V, VCE=0V

0.1

1.0

µA

Reference Voltage for

Adjustable Voltage Regulator

VOUT

VOUT=VADJ, VIN=2.0V, IOUT=100mA

0.970 1.000 1.030

Output Voltage Range

RVOUT

1.0

VIN

Load Regulation

OUT

∆I

∆V

VIN=1.4V, 1mA≤IOUT≤300mA

-15

-2

VIN=1.7V, 1mA≤IOUT≤1A

-3

Dropout Voltage

VDIF

VOUT=VADJ

IOUT=300mA

0.18

0.32

IOUT=1A

0.56

Line Regulation

OUT

∆V

VOUT=VADJ, IOUT=100mA, 1.5V≤VIN ≤6.0V

0.05

0.20

%/V

Ripple Rejection

f=1kHz Ripple 0.5Vp-p, VOUT=VADJ,

VIN=2.5V, IOUT=100mA

Output Voltage Temperature

Coefficient

OPT

OUT

∆T

∆V

IOUT=100mA, -40°С≤TOPT≤85°С

±100

ppm/°С

Output Current

ILIM

VOUT=VADJ, VIN=2.0

Short Current Limit

ISC

VOUT=VADJ=0V

250

Pull-Down Resistance for

CE PIn

RPD

1.9

5.0

15.0

MΩ

CE Input Voltage

High

VCEH

1.0

6.0

Low

VCEL

0.4

Thermal Shutdown Detector

Threshold Temperature

TTSD

Junction temperature

150

°С

Thermal Shutdown

Released Temperature

TTSR

Junction temperature

120

°С

Output Noise

BW=10Hz~100kHz

µVrms

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