ISL9003A(2009) 查看數據表（PDF） - Intersil

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ISL9003A
(Rev.:2009)

Low Noise LDO with Low IQ and High PSRR

Intersil 

ISL9003A

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. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

(Note 9) TYP (Note 9) UNITS

DEVICE START-UP CHARACTERISTICS

Device Enable tIme

LDO Soft-start Ramp Rate

EN PIN CHARACTERISTICS

tEN

tSSR

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

reaches 95% of the VO(nom).

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

250 500

30

60

µs

µs/V

Input Low Voltage

VIL

-0.3

0.4

V

Input High Voltage

VIH

1.4

VIN + 0.3 V

Input Leakage Current

IIL, IIH

0.1

µA

Pin Capacitance

CPIN Informative

5

pF

NOTES:

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

8. VO = 0.98*VO(NOM); Valid for VO greater than 1.85V.

9. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by

characterization and are not production tested.

Typical Performance Curves

0.8

VO = 3.3V

0.6

ILOAD = 0mA

0.4

0.2

+25°C

0.0

+85°C

-0.2

-0.4

-0.6

-40°C

-0.8

3.4 3.8 4.2 4.6 5.0 5.4 5.8 6.2 6.6

INPUT VOLTAGE (V)

FIGURE 1. OUTPUT VOLTAGE vs INPUT VOLTAGE

(3.3V OUTPUT)

0.2

VO = 3.3V

+25°C

0.1

IO = 0mA

0.0

-0.1

IO = 75mA

-0.2

IO = 150mA

-0.3

-0.4

3.3

3.8

4.3

4.8

5.3

5.8

6.3

INPUT VOLTAGE (V)

FIGURE 2. OUTPUT VOLTAGECHANGE (%) vs INPUT

VOLTAGE (3.3V OUTPUT)

4

FN6299.4

October 1, 2009

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