EL7516 datasheet(2/11 Pages) IRF

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FN7333.3

Absolute Maximum Ratings (TA = 25°C)

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

VDD to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V

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

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

Ω

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

Error Amp Tranconductance

∆I = 5µA

130

170

1µ/

Ω

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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