HT72B15 datasheet(4/13 Pages) HOLTEK

4 / 13 page

Rev. 1.00

August 24, 2011

HT72Bxx

Electrical Characteristics

Ta=25°C, VIN=VOUT+1V, IOUT=30mA, unless otherwise specified(Note 2)

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

VIN

Input Voltage

1.5V≤VOUT≤5.0V

2.5

—

∆VOUT

Output Voltage Tolerance

1mA≤IOUT≤30mA

-2

—

∆VLINE

Line Regulation

VOUT+0.5V≤VIN≤7V IOUT=10mA

—

0.02

0.1

%/V

∆VLOAD Load Regulation(Note 3)

1mA≤IOUT≤300mA

1.5V≤VOUT≤1.8V

—

2.5V≤VOUT≤3.0V

—

VOUT≥3.3V

—

VDROP

Dropout Voltage(Note 4)

∆VOUT=2%

IOUT=300mA

1.5V≤VOUT≤1.8V

—

0.6

0.9

2.5V≤VOUT≤5.0V

—

0.34 0.64

ISHORT

Short Current Limit

VOUT=0V

—

ISS

Supply Current

IOUT=0mA

—

μA

ISD

Shutdown Current

CE=GND

—

0.1

μA

VIH

CE Input High Threshold

VOUT+1V≤VIN≤7V

—

VIL

CE Input Low Threshold

VOUT+1V≤VIN≤7V

—

0.3

Ripple Rejection

IOUT=30mA

f=1kHz

—

f=10kHz

—

VNOISE

Output Noise

Bandwidth=10Hz to 100KHz

—

μVrms

Temperature Coefficient

TC=

OUT

∆

∆•

, IOUT=30mA, -40°C≤Ta≤85°C

—

±100

—

ppm/°C

TSD

Thermal Shutdown Temperature

—

150

—

°C

Note:1.Absolutemaximumratingsindicatelimitsbeyondwhichdamagetothedevicemayoccur.Operating

Ratingsindicateconditionsforwhichthedeviceisintendedtobefunctional,butdonotguarantee

specificperformancelimits.Theguaranteedspecificationsapplyonlyforthetestconditionslisted.

2.SpecificationsareproductiontestedatTA=roomtemperature.Specificationsoverthe-40°Cto85°C

operatingtemperaturerangeareassuredbydesign,characterizationandcorrelationwithStatistical

QualityControls(SQC).

3.Loadregulationismeasuredatconstantjunctiontemperature,usingpulsetestingwithashortONtime.

Guaranteeduptothemaximumpowerdissipation.Powerdissipationisdeterminedbytheinput/output

differentialvoltageandtheoutputcurrent.Guaranteedmaximumpowerdissipationwillnotbeavailable

overthefullinput/outputrange.Themaximumallowablepowerdissipationatanyambienttemperature

isPD=(TJ(MAX)–TA)/θJA.

4.Dropoutvoltageistheminimuminputtooutputvoltagedifferentialneededtomaintainregulationata

specifiedoutputcurrent.Indropout,theoutputvoltagewillbeequalto:VIN–VDROP.

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