EL7516 datasheet(2/12 Pages) RENESAS

2 / 12 page

EL7516

FN7333 Rev 6.00

Page 2 of 12

October 9, 2007

Absolute Maximum Ratings (TA = +25°C)

Thermal Information

LX to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V

VDD to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V

COMP, FB, SHDN, SS, FSEL to GND . . . . . . . -0.3V to (VDD +0.3V)

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C

Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135°C

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves

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

Electrical Specifications

VIN = 3.3V, VOUT = 12V, IOUT = 0mA, FSEL = GND, TA = +25°C unless otherwise specified.

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

IQ1

Quiescent Current - Shut-down

SHDN = 0V

0.6

µA

IQ2

Quiescent Current - Not Switching

SHDN = VDD, FB = 1.3V

0.7

IQ3

Quiescent Current - Switching

SHDN = VDD, FB = 1.0V

1.3

VFB

Feedback Voltage

1.272

1.294

1.309

IB-FB

Feedback Input Bias Current

0.01

0.5

µA

VDD

Start-Up Input Voltage Range

2.6

5.5

DMAX - 600kHz Maximum Duty Cycle

FSEL = 0V

DMAX - 1.2MHz Maximum Duty Cycle

FSEL = VDD

ILIM

Current Limit - Max Peak Input Current

1.3

1.5

ISHDN

Shut-down Input Bias Current

SHDN = 0V

0.01

0.1

µA

rDS-ON

Switch ON-Resistance

VDD = 2.7V, ILX = 1A

0.2



ILX-LEAK

Switch Leakage Current

VSW = 18V

0.01

µA

VOUT/VIN

Line Regulation

3V < VIN < 5.5V, VOUT = 12V

0.1

VOUT/IOUT Load Regulation

VIN = 3.3V, VOUT = 12V, IO = 30mA to 200mA

6.7

mV/A

fOSC1

Switching Frequency Accuracy

FSEL = 0V

500

620

740

kHz

fOSC2

Switching Frequency Accuracy

FSEL = VDD

1000

1250

1500

kHz

VIL

SHDN, FSEL Input Low Level

0.5

VIH

SHDN, FSEL Input High Level

2.7

VIL

SHDN, Input Low Level

5V Input Supply

1.25

VIH

SHDN, Input High Level

5V Input Supply

4.5

Error Amp Tranconductance

I = 5µA

130

170

1µ/



Voltage Gain

350

V/V

VDD-ON

VDD UVLO On Threshold

2.40

2.51

2.60

VDD-OFF

VDD UVLO Off Threshold

2.20

2.30

2.40

ISS

Soft-start Charge Current

µA

RCS

Current Sense Transresistance

0.08

V/A

OTP

Over-temperature Protection

130

°C

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