SC122 查看數據表（PDF） - Semtech Corporation

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SC122

Low Voltage Synchronous Boost Converter

Semtech Corporation 

SC122

Electrical Characteristics (continued)

Parameter

N-Channel Current Limit

LX Leakage Current PMOS

LX Leakage Current NMOS

Logic Input High

Logic Input Low

Logic Input Current High

Logic Input Current Low

Symbol

I

LIM(N)

ILXPLK

I

LXNLK

V

IH

V

IL

IIH

I

IL

Conditions

V = 1.2V

IN

TA = 25°C, VLX = 0V, VOUT = 3.3V

T = 25°C, V = 3.3V, V = 3.3V

A

LX

OUT

V = 1.2V

IN

V = 1.2V

IN

VEN = VIN = 1.2V

V = 0V

EN

Min Typ Max Units

350

mA

1

μA

1

μA

0.4

V

0.1

V

1

μA

-0.2

μA

NOTES:

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

approximately IQ × (VOUT/VIN).

(2) Restart occurs when the EN pin transitions from low to high while the output voltage is at or near the regulation value (3.3V). See the

application section “The Enable Pin” for details.

4

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