SC339 datasheet(3/15 Pages) SEMTECH

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SC339

POWER MANAGEMENT

Parameter

Symbol

Conditions

Min

Typ

Max

Units

ADJ

Adjust Input Bias Current

ADJ

ADJ = 0.5V

-100

+100

Reference Voltage

ADJ

0°C ≤ T

A ≤ +85°C

-1%

0.500

DRV

Output Current

DRV

Sourcing

Sinking

Output Voltage

DRV

Full On, I

DRV = 0mA, VIN = 5V

4.70

4.85

Output Under-Voltage Protection

Trip Threshold(2)

TH(UV)

Measured at ADJ pin

ADJ

PGD

Power Good Threshold(3)

TH(PGD)

Measured at ADJ pin

-15

-12

-8

ADJ

Output Logic Low Voltage

PGD

ADJ = 0.4V, IPGD = -1mA

0.4

Power Good

Leakage Current

PGD

ADJ = 0.5V, 0V ≤ VPGD ≤ VIN

-1

μA

Soft-Start

Output Rise Time 10% VOUT

to 90% VOUT, VOUT = 1.05V

From EN rising to

99% of V

OUT

500

1000

2000

μs

Electrical Characteristics

Notes:

1) V

PWR = input voltage to pass device drain (or source depending upon orientation of FET).

2) If V

TH(UV) is exceeded for longer than 1ms (nom.) the protection circuitry will shut down the output.

3) During start-up only, V

TH(PGD) is -6% (typical), then switches to -12% (typical).

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