LX Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V

18V

16.5V

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

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

2

FN7317.2

February 4, 2005

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

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Electrical Specifications

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

DC/DC BOOST CONVERTER

IQ1_B

Quiescent Current - Shut-down

EN = 0V

0.8

10

µA

IQ2_B

Quiescent Current - Switching

4.8

8

mA

V(FBB)

Feedback Voltage

1.275

1.300

1.325

V

Reference Voltage

1.260

1.310

1.360

V

Oscillator Set Voltage

1.260

1.325

1.390

V

I(FBB)

Feedback Input Bias Current

0.1

µA

Boost Converter Supply Range

2

17

V

Maximum Duty Cycle

85

92

%

Peak Internal FET Current

1.75

A

Switch On Resistance

0.22

Ω

Switch Leakage Current

I(LX) total

1

µA

Output Range

5

17

V

0.1

%

0.5

%

Frequency Range

200

1200

kHz

Switching Frequency

900

1000

1100

kHz

Supply Voltage Range

6

15

V

5.5

20

µA

1.7

5

mA

-10

+10

mV

I(INC)

Current magnitude

-0.1

0.01

0.1

µA

0.25

Ω

Output Current Limit

150

mA

PSRR

Supply Voltage Rejection

60

102

dB

CMRR

Common Mode Voltage Rejection

60

93

dB

EL7584