LP3202 参数 Datasheet PDF下载

LP3202

Electrical Characteristics

(VIN = 3.6V, VOUT = 2.5V, VREF = 0.6V, L = 2.2µH, CIN= 4.7µF, COUT= 10µF, TA= 25°C, IMAX = 650mA unless

otherwise specified)

Parameter

Input Voltage Range

Quiescent Current

Shutdown Current

Reference Voltage

Adjustable Output Range

Symbol

VIN

IQ

ISHDN

VREF

VOUT

Δ

VOUT

Δ

VOUT

Fix

Output

Voltage

Accuracy

Δ

VOUT

Δ

VOUT

Δ

VOUT

Δ

VOUT

Δ

VOUT

V

FB

=

V

IN

I

OUT

=

200mA

I

OUT

=

200mA

V

IN

=

2.2 to

5.5 V

VIN = 3.6V

VIN = 3.6V

VIN = 2.2 to 5.5V, VOUT = 1.0V 0A <

IOUT < 600mA

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

IOUT < 600mA

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

IOUT < 600mA

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

IOUT < 600mA

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

IOUT < 600mA

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

IOUT < 600mA

VIN = VOUT + 0.2V to 5.5V, VIN

≧

Adjustable

3.5V 0A < IOUT < 600mA

VIN = VOUT + 0.4V to 5.5V, VIN

≧

2.2V 0A < IOUT < 600mA

FB Input

Current

PMOSFET

RON

NMOSFET

RON

P-Channel

Current

Limit

EN

Threshold

EN Leakage

Current

I

FB

P

RDS(ON)

N

RDS(ON)

IOUT = 0mA, VFB = VREF + 5%

EN = GND

For adjustable output voltage

0.588

VREF

−3

−3

−3

−3

−3

−3

−3

−3

-30

0.20

0.25

Test Conditions

Min

2.5

270

0.1

0.6

Typ

Max

5.5

370

1

0.612

VIN

−

0.2

+3

+3

+3

+3

+3

+3

+3

+3

30

0.38

Units

V

μA

μA

V

V

%

%

%

%

%

%

%

%

nA

Ω

Ω

I

P(LM)

1

1.2

1.4

V

EN

0.3

1.0

1.5

V

V

ENL

--

1

uA

LP3202-01 datasheet

Oct.-2006

4

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