ISL97519AIUZ-TK datasheet(2/9 Pages) INTERSIL

Part #	ISL97519AIUZ-TK

Description	600kHz/1.2MHz PWM Step-Up Regulator

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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2

FN6683.2

June 30, 2008

Absolute Maximum Ratings (TA = +25°C)

Thermal Information

LX to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27V

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

COMP, FB, EN, 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 on page 5

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and

result in failures not covered by warranty.

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 = -40°C to +85°C unless otherwise specified.

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.

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

IQ1

Quiescent Current - Shutdown

EN = 0V

1

5

µA

IQ2

Quiescent Current - Not Switching

EN = VDD, FB = 1.3V

0.7

mA

IQ3

Quiescent Current - Switching

EN = VDD, FB = 1.0V

3

4.5

mA

VFB

Feedback Voltage

1.228

1.24

1.252

V

IB-FB

Feedback Input Bias Current

0.01

0.5

µA

VDD

Input Voltage Range

2.3

5.5

V

DMAX-600kHz Maximum Duty Cycle

FSEL = 0V

85

92

%

DMAX-1.2MHz Maximum Duty Cycle

FSEL = VDD

85

90

%

ILIM1

Current Limit - Max Peak Input Current

VDD < 2.8V

1.0

A

ILIM2

Current Limit - Max Peak Input Current

VDD > 2.8V

1.5

2.0

A

IEN

Shutdown Input Bias Current

EN = 0V

0.01

0.5

µA

rDS(ON)

Switch ON-Resistance

VDD = 2.7V, ILX = 1A

0.2

Ω

ILX-LEAK

Switch Leakage Current

VSW = 27V

0.01

3

µA

ΔVOUT/ΔVIN

Line Regulation

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

0.2

%

ΔV

OUT/ΔIOUT

Load Regulation

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

0.3

%

FOSC1

Switching Frequency Accuracy

FSEL = 0V

500

620

740

kHz

FOSC2

Switching Frequency Accuracy

FSEL = VDD

1000

1250

1500

kHz

VIL

EN, FSEL Input Low Level

0.5

V

VIH

EN, FSEL Input High Level

1.5

V

GM

Error Amp Tranconductance

ΔI = 5µA

70

130

150

1µ/

Ω

VDD-ON

VDD UVLO On Threshold

1.95

2.1

2.25

V

HYS

VDD UVLO Hysteresis

140

mV

ISS

Soft-Start Charge Current

2

3

4

µA

VSS-en

Minimum Soft-Start Enable Voltage

40

65

150

mV

ILIM-VSS-en

Current Limit Around SS Enable V

SS = 200mV

300

350

400

mA

OTP

Over-Temperature Protection

150

°C

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