Rev. 1.00

3

August 08, 2011

HT72Dxxxx

ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Input Voltage

—

2.5

—

7

V

Output Voltage Tolerance

-2

—

+2

%

300

—

—

mA

Line Regulation

—

0.02

0.1

%/V

Load Regulation (Note 4)

—

10

20

mV

—

15

30

—

20

40

Dropout Voltage (Note5)

—

0.6

0.9

V

—

0.34

0.64

Output Voltage Noise

Bandwidth=10Hz to 100kHz

—

30

—

Short Current Limit

—

90

—

mA

Supply Current

—

30

50

μA

Shutdown Current

—

0.1

1

μA

EN Input High Voltage

2.0

-

—

V

EN Input Low Voltage

—

-

0.4

RR

Ripple Rejection

f=1kHz

—

70

—

dB

f=10kHz

—

53

—

OUT

a

OUT

V

TV

∆

ƥ

Temperature Coefficient

-40°C<Ta<85°C

—

±100

—

ppm/°C

Thermal Shutdown Temperature

—

—

150

—

°C

Note 1. Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating

Ratings indicate conditions for which the device is intended to be functional, but do not guarantee

specific performance limits. The guaranteed specifications apply only for the test conditions listed.

operating temperature range are assured by design, characterization and correlation with Statistical

Quality Controls (SQC).

3. The input/output differential voltage multiplied by the output current must be less than than the package

power dissipation value of 250mW.

4. Load regulation is measured at constant junction temperature, using pulse testing with a short ON time.

The devices are guaranteed up to the maximum power dissipation. Power dissipation is determined by the

input/output differential voltage and the output current. Guaranteed maximum power dissipation will not

be available over the full input/output range. The maximum allowable power dissipation at any ambient

5. Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a