Electrical Characteristics

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Input Voltage

¾¾

¾

8V

Output Voltage Tolerance

¾-2

¾

2%

Quiescent Current

¾

57

mA

Load Regulation (Note1)

1mA

¾

0.004

0.008

%/mA

Dropout Voltage (Note2)

£1.8V

¾

800

1200

mV

2.5V

¾

350

400

3.0V

¾

240

300

Line Regulation

¾

0.2

0.3

%/V

Current Limit (Note3)

300

¾¾

mA

Temperature Coefficient

-40°C<Ta<85°C

¾±0.8

¾

mV/

°C

Note:

1. Load regulation is measured at a constant junction temperature, using pulse testing with a low ON time and

is 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 temperature is

2. Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the

3. Current limit is measured by pulsing for a short time.

Application Circuits

Basic Circuits

Typical Application Circuits

HT72XX Series

Rev. 1.10

3

June 20, 2007

C o m m o n

C o m m o n

S i n g l e p o i n t G N D

G N D

T r 1

R 1

H T 7 2 X X

S e r i e s

C 2

1 0 m F

C 1

1 0 m F

V I N

V O U T

( 1 + b )

,

C o m m o n

C o m m o n

S i n g l e p o i n t G N D

G N D

H T 7 2 X X

S e r i e s

C 2

2 . 2 m F

C 1

1 m F

V I N

V O U T