AT1380A

Preliminary Product Information

Switching Regulator Controller for LCD Bias

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

Fax: 886-3-563-0879

3

Absolute Maximum Ratings

Rated Value

Parameter

Symbol

Condition

Min.

Max.

Unit

Power supply voltage

V

CC

——

15

V

Output source current

I

O

+

——

-50

mA

Output sink current

I

O

-

——

50

mA

P

D

SOP-8, Ta ≦+25°C

—570

mW

Allowable dissipation

P

D

TSSOP-8, Ta ≦+25°C

—430

mW

Operating temperature

T

OP

—-30

+85

Storage temperature

T

stg

—

-55

+125

ESD Classification

MIL-STD-883

Class 2

WARNING: Do not exceed these ratings. IC devices can be permanently damaged by stress (voltage,

current, temperature, etc.) in excess of absolute maximum ratings.

Recommended Operating Conditions

Values

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power supply voltage

V

CC

2.5

--

13.5

Ｖ

Error amplifier input voltage

V

I

-0.2

--

1.0

Ｖ

BR/CTL pin input voltage

V

BR

-0.2

--

V

CC

Ｖ

Output source current

I

O

+

-20

--

--

ｍＡ

Output sink current

I

O

-

--

--

40

ｍＡ

SCP pin capacitance

C

PE

--

0.1

--

μＦ

Phase compensation capacitance

C

P

--

0.1

--

μＦ

Output current setting resistance

R

B

150

390

5000

Ω

Timing resistance

R

T

1.0

3.0

10.0

ｋ

Ω

Timing capacitance

C

T

100

270

10000

pF

Oscillation frequency

f

OSC

10

500

1000

kHz

Operating temperature

T

OP

-30

+25

+85

°C

WARNING: Recommended operating conditions are normal operating ranges for the IC device. All the

device’s electrical characteristics are warranted for operation within these ranges. Use IC devices only

within the recommended operating conditions. Operation outside these ranges may adversely affect the

reliability and can result in device failure.