ISL9012IRGCZ datasheet(4/11 Pages) INTERSIL

4 / 11 page

FN9220.0

September 27, 2005

DEVICE START-UP CHARACTERISTICS

Device Enable TIme

TEN

Time from assertion of the ENx pin to when the output voltage

reaches 95% of the VO(nom)

250

500

µs

LDO Soft-start Ramp Rate

TSSR

Slope of linear portion of LDO output voltage ramp during start-

µs/V

EN1, EN2 PIN CHARACTERISTICS

Input Low Voltage

VIL

-0.3

0.5

Input High Voltage

VIH

1.4

VIN+0.3

Input Leakage Current

IIL, IIH

0.1

µA

Pin Capacitance

CPIN

Informative

POR PIN CHARACTERISTICS

POR Thresholds

VPOR+ As a percentage of nominal output voltage

VPOR-

POR Delay

TPLH

CPOR = 0.01

µF

100

200

300

TPHL

µs

POR Pin Output Low Voltage

VOL

@IOL = 1.0mA

0.2

POR Pin Internal Pull-up

Resistance

RPOR

100

130

Ω

NOTES:

3. Guaranteed by design and characterization.

4. VOx = 0.98 * VOx(NOM); Valid for VOx greater than 1.85V.

Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature

range of the device as follows:

TA = -40°C to +85°C; VIN = (VO+0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF;

CBYP = 0.01µF; CPOR = 0.01µF (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VPOR+

VPOR-

<tPHL

tPLH

tPHL

VO2

POR

EN2

TEN

VPOR-

FIGURE 1. TIMING PARAMETER DEFINITION

ISL9012

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