EL7571 datasheet(2/19 Pages) RENESAS

2 / 19 page

EL7571

FN7298 Rev 1.00

Page 2 of 19

October 25, 2004

Absolute Maximum Ratings (TA = 25°C)

Supply Voltage: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 14V

Input Pin Voltage:. . . . . . . . . -.03 below Ground, +0.3 above Supply

VHI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 27V

Storage Temperature Range: . . . . . . . . . . . . . . . . . 65°C to +150°C

Operating Temperature Range:. . . . . . . . . . . . . . . . . . 0°C to +70°C

Operating Junction Temperature: . . . . . . . . . . . . . . . . . . . . . . 125°C

Peak Output Current:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3A

Power Dissipation: . . . . . . . . . . . . . . . . . . . . . . . . . . . .SO20 500mW

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests

are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA

DC Electrical Specifications

TA = 25°C, VIN = 5V, COSC = 330pF, CSLOPE = 390pF, RSENSE = 7.5m unless otherwise specified.

PARAMETER

DESCRIPTION

CONDITION

MIN

TYP

MAX

UNIT

VIN

Input Voltage Range

4.5

12.6

VUVLO HI

Input Under Voltage Lock out Upper

Limit

Positive going input voltage

3.6

4.4

VUVLO LO

Input Under Voltage Lock out Lower

Limit

Negative going input voltage

3.15

3.5

3.85

VOUT RANGE

Output Voltage Range

See VID table

1.3

3.5

VOUT 1

Steady State Output Voltage Accuracy,

VID = 10111

IL = 6.5A, VOUT = 2.8V

2.74

2.82

2.90

VOUT 2

Steady State Output Voltage Accuracy,

VID = 00101

IL = 6.5A, VOUT =1.8V

1.74

1.81

1.9

VREF

Reference Voltage

1.396

1.41

1.424

VILIM

Current Limit Voltage

VILIM = (VCS-VFB)

125

154

185

VIREV

Current Reversal Threshold

VIREV = (VCS-VFB)

-40

-5

VOUT PG

Output Voltage Power Good Lower

Level

VOUT = 2.05V

-18

-14

-10

Output Voltage Power Good Upper

Level

812

VOVP

Over-Voltage Protection Threshold

+13

+17

VOTEN LO

Power Down Input Low Level

VIN = -10uA

1.5

VOTEN HI

Power Down Input High Level

(VIN-1.5)

VID LO

Voltage I.D. Input Low Level

1.5

VID HI

Voltage I.D. Input High Level

(VIN-1.5)

VOSC

Oscillator Voltage Swing

0.85

VP-P

VPWRGD LO

Power Good Output Low Level

IOUT = 1mA

0.5

RDS ON

HSD, LSD Switch On-Resistance

VIN, VINP = 12V, IOUT = 100mA,

(VHI-LX) = 12V

4.8



RFB

FB Input Impedance

9.5



RCS

CS Input Impedance

115



IVIN

Quiescent Supply Current

VOTEN>(VIN-0.5)V

1.2

IVIN DIS

Supply Current in Output Disable Mode VOTEN<1.5V

0.76

ISOURCE/SINK

Peak Driver Output Current

VIN,VINP = 12V, Measured at HSD,

LSD, (VHI-LX) = 12V

2.5

IRAMP

CSLOPE Ramp Current

High Side Switch Active

8.5

µA

IOSC CHARGE

Oscillator Charge Current

1.2>VOSC>0.35V

µA

IOSC DISCHARGE Oscillator Discharge Current

1.2>VOSC>0.35V

IREFMAX

VREF Output Current

µA

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