© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

400mA SmartLDO

TM

SC1534

PRELIMINARY - July 26, 2000

4

ELECTRICAL CHARACTERISTICS

Unless specified, T

Parameter

Symbol

Test Conditions

MIN

TYP

MAX Units

Drive Output

Drive Voltage

V

DR

4.35V

≤ VIN ≤ 5.5V, I

3.4

VIN - 0.8

V

3.3

VIN < V

35

150

mV

250

Peak Drive Current

I

DR(PK)

Sinking: VIN = 3.9V, V

7

mA

Sourcing: VIN = 4.35V, VIN - V

6

Drive High Delay

(1)(4)

t

DH

C

0.5

1.0

µs

from VIN = V

2.0

Drive Low Delay

(1)(4)

t

DL

C

0.5

1.0

µs

from VIN = V

2.0

NOTES:

(1) Guaranteed by design.

(2) See 5V Detect Thresholds on page 5.

(3) Recommended source impedance for 5V supply:

≤ 0.125Ω. This will ensure that I

avoiding DR toggling during 5V detect threshold transitions.

(4) See Timing Diagram on page 5.