SC120(2009) Просмотр технического описания (PDF) - Semtech Corporation

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SC120
(Rev.:2009)

Low Voltage Synchronous Boost Converter

Semtech Corporation 

SC120

Electrical Characteristics (continued)

Parameter

Symbol

Conditions

Min Typ Max Units

N-Channel ON Resistance

R

DSN

V = 3.3V

OUT

0.5

Ω

N-Channel Current Limit

ILIM(N)

VIN = 3.0V

0.9 1.2

A

P-Channel Startup Current Limit

I

LIM(P)-SU

V >V ,V >V

IN

OUT EN

IH

150

mA

LX Leakage Current PMOS

I

LXP

T = 25°C, V = 0V

A

LX

1

μA

LX Leakage Current NMOS

I

LXN

T = 25°C, V = 3.3V

A

LX

1

μA

Logic Input High

VIH

VIN = 3.0V

0.85

V

Logic Input Low

V

IL

L Logic Input Current High

I

IH

IA Logic Input Current Low

I

IL

V = 3.0V

IN

V = V = 3.0V

EN

IN

V = 0V

EN

0.2

V

1

μA

-0.2

μA

NOTES:

T (1) Quiescent operating current is drawn from OUT while in regulation. The quiescent operating current projected to IN is approximately

I × (V /V ).

CONFIDEN Q

OUT IN

PRELIMINARY

4

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