ISL9000IRBCZ Просмотр технического описания (PDF) - Intersil

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ISL9000IRBCZ

Dual LDO with Low Noise, Very High PSRR, and Low IQ

Intersil 

ISL9000

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

LDO Soft-Start Ramp Rate

TSSR Slope of linear portion of LDO output voltage ramp during

start-up

30

60

μs/V

EN1, EN2 PIN CHARACTERISTICS

Input Low Voltage

VIL

Input High Voltage

VIH

Input Leakage Current

IIL, IIH

Pin Capacitance

CPIN

POR1, POR2 PIN CHARACTERISTICS

Informative

-0.3

0.5

V

1.4

VIN+0.3 V

0.1

μA

5

pF

POR1, POR2 Thresholds

POR1 Delay

POR2 Delay

POR1, POR2 Pin Output Low

Voltage

VPOR+

VPOR-

TP1LH

TP1HL

TP2LH

TP2HL

VOL

As a percentage of nominal output voltage

CPOR = 0.01μF

@IOL = 1.0mA

91 94

97

%

87 90

93

%

1.0 2.0

3.0

ms

25

μs

100 200 300

ms

25

μs

0.2

V

POR1, POR2 Pin Internal Pull-Up

Resistance

RPOR

78 100 180

kΩ

NOTES:

3. Guaranteed by design and characterization.

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

EN1

EN2

TEN

VPOR+

VO1

VO2

POR1

POR2

tP1LH

tP2LH

VPOR-

VPOR+

<tP1HL

<tP2HL

tP1HL

tP2HL

VPOR-

FIGURE 1. TIMING PARAMETER DEFINITION

4

FN9217.3

August 2, 2006

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