2

Rev J: 3/4/07

SP765 Wide Input Voltage Range 3A, 900kHz, Buck Regulator

© Copyright 2007 Sipex Corporation

The

BST................................................................................................ 35V

LX-BST...............................................................................-0.3V to 7V

LX ........................................................................................-V to 20V

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

Power Dissipation..................................................... Internally Limited

ESD Rating........................................................................... 2kV HBM

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections

of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

PARAMETER

MIN.

TYP.

MAX.

UNITS

CONDITIONS

QUIESCENT CURRENT

.5

3

mA

8

2

mA

•

BST Supply Current (No switching)

0.2

0.4

mA

BST Supply Current (switching)

4

6

mA

•

PROTECTION: UVLO

4.00

4.25

4.5

V

00

200

300

mV

UVIN Start Threshold

2.3

2.5

2.65

V

•

UVIN Hysteresis

200

300

400

mV

UVIN Input Current



µA

UVIN= 3.0V

ERROR AMPLIFIER REFERENCE

Error Amplifier Reference

0.792

0.800

0.808

V

2X Gain Config., Measure

Error Amplifier Reference

Over Line and Temperature

0.788

0.800

0.82

V

•

Error Amplifier Transconductance

6

mA/V

Error Amplifier Gain

60

dB

No Load

COMP Sink Current

50

µA

COMP Source Current

50

µA

50

200

nA

Internal Pole

4

MHz

COMP Clamp

2.5

V

COMP Clamp Temp. Coefficient

-2