ISL9000IRBCZ datasheet(4/11 Pages) RENESAS

4 / 11 page

ISL9000

FN9217 Rev 4.00

Page 4 of 11

March 11, 2008

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-up

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

POR1, POR2 PIN CHARACTERISTICS

POR1, POR2 Thresholds

VPOR+

As a percentage of nominal output voltage

VPOR-

POR1 Delay

tP1LH

1.0

2.0

3.0

tP1HL

µs

POR2 Delay

tP2LH

CPOR = 0.01µF

100

200

300

tP2HL

µs

POR1, POR2 Pin Output Low

Voltage

VOL

@IOL = 1.0mA

0.2

POR1, POR2 Pin Internal Pull-Up

Resistance

RPOR

100

180



NOTES:

6. Limits established by characterization and are not production tested.

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

8. Parts are 100% tested at +25°C. Temperature limits established by characterization and are not production tested.

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

(Note 8)

TYP

MAX

(Note 8)

UNITS

VPOR+

VPOR-

<tP1HL

tP2LH

tP1LH

tP1HL

tP2HL

<tP2HL

VO1

VO2

POR1

POR2

EN2

tEN

VPOR-

FIGURE 1. TIMING PARAMETER DEFINITION

EN1

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