www.vishay.com

2

Document Number: 73193

S-71822-Rev. C, 03-Sep-07

Vishay Siliconix

SiP12401

Notes:

a. Derate 20 mW/°C above 70 °C.

b. Device Mounted with all leads soldered or welded to PC board.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation

of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum

rating conditions for extended periods may affect device reliability.

Notes:

a. Full = - 40 to 85 °C.

b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum (- 40° to 85 °C).

c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.

ABSOLUTE MAXIMUM RATINGS (all voltages referenced to GND = 0 V)

Parameter

Limit

Unit

- 0.3 to 6

V

EXT Voltage

XSHD Voltage

FB Voltage

Maximum Junction Temperature

150

°C

Storage Temperature

- 55 to 150

Operating Junction Temperature

125

a

1100

mW

PowerPAK MLP33-6

50

°C/W

RECOMMENDED OPERATING RANGE (all voltages referenced to GND = 0 V)

Parameter

Limit

Unit

1.8 to 5

V

XSHD, EXT Voltage

LX Voltage

FB Voltage

0 to 5

Operating Temperature Range

- 40 to 85

°C

Parameter

Symbol

Test Conditions Unless Specified

Limits

Unit

Input Voltage

Full

1.8

5

V

UVLO

Full

1.65

1.77

UVLO Hysteresis

0.1

Feedback Voltage

0.291

0.3

0.309

Full

0.282

0.318

Feedback Input Current

1nA

Maximum PWM Duty Cycle

MAXDTY

77

85

%

PWM Switching Frequency

Full

425

600

775

kHz

Quiescent Current

200

300

µA

Stand-By Current

XSHD = 0 V

Full

1

XSHD Input High Level

Full

1.2

V

XSHD Input Low Level

Full

0.2

EXT High On Resistance

35

Ω

EXT Low On Resistance

30