Preliminary Datasheet

LP78081

LP78081 – Ver. 1.0 Datasheet

Feb.-2008

Page 3 of 8

Absolute Maximum Ratings

■

Input Supply Voltage

-0.3V to 6V

■

LDO Current

350mA

■

P-Channel Switch Source Current(DC)

600mA

■

N-Channel Switch Current(DC)

600mA

■

Peak SW Sink and Source Current

800mA

■

Operation Temperature Range

--40℃ to 85℃

■

Junction Temperature

125℃

■

Storage Temperature

--65℃ to 150℃

■

Lead Temp(Soldering,10sec)

260℃

■

ESD Rating(HBM)

2KV

Electrical Characteristics

(VIN = 3.6V, VOUT = 2.5V, VREF = 0.6V, L = 2.2µH, CIN= 4.7µF, COUT= 10µF, TA= 25°C, IMAX = 600mA

unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Input Voltage Range

VIN

2.7

6.5

V

Quiescent Current

IQ

IOUT = 0mA, VFB =0.5V

IOUT = 0mA, VFB =0.7V

270

25

350

35

uA

Shutdown Current

ISHDN

EN = GND

0.1

1

uA

Reference Voltage

VREF

For adjustable output voltage

0.602

0.625

0.632

V

Adjustable Output Range

VOUT

VREF

VIN −

0.2

V

Δ

VOUT

VIN = 2.2 to 5.5V, VOUT = 1.2V 0A <

IOUT < 600mA

−

3

+3

%

Δ

VOUT

VIN = 2.2 to 5.5V, VOUT = 1.5V 0A <

IOUT < 600mA

−

3

+3

%

Output

Voltage

Δ

VOUT

VIN = 2.2 to 5.5V, VOUT = 1.8V 0A <

IOUT < 600mA

−

3

+3

%

Accuracy

Δ

VOUT

VIN = 2.8 to 5.5V, VOUT = 2.5V 0A <

IOUT < 600mA

−

3

+3

%

Fixed

Δ

VOUT

VIN = 3.5 to 5.5V, VOUT = 3.3V 0A <

IOUT < 600mA

−

3

+3

%

Δ

VOUT

VIN = VOUT + 0.2V to 5.5V, VIN ≧

3.5V 0A < IOUT < 600mA

−

3

+3

%

Adjustable

Δ

VOUT

VIN = VOUT + 0.4V to 5.5V, VIN ≧

2.2V 0A < IOUT < 600mA

−

3

+3

%

LDO Output

current

300

350

400

mA

PMOSFET

RON

PRDS(ON)

IOUT =

200mA

VIN = 3.6V

0.45

0.53

Ω

NMOSFET

RON

NRDS(ON)

IOUT =

200mA

VIN = 3.6V

0.45

Ω

P-Channel

Current Limit

IP(LM)

VIN =2.2

to 5.5V

600

800

1000

mA

EN

Threshold

VEN

0.8

1.2

1.5

V

EN Leakage

Current

VENL

--

2

uA