2

Oct 3-06 Rev L

SP636 Synchronous Buck Controller

© 2006 Sipex Corporation

PARAMETER

MIN

TYP

MAX

UNITS CONDITIONS

QUIESCENT CURRENT

VIN Supply Current

.5

3.0

mA

VFB = V (no switching)

VCC Supply Current

.5

3.0

mA

VFB = V (no switching)

BST Supply Current

0.2

0.4

mA

VFB = V (no switching)

PROTECTION: UVLO

VCC UVLO Start

Threshold

4.00

4.25

4.5

V

VCC UVLO Hysteresis

50

200

250

mV

UVIN Start Threshold

2.35

2.50

2.65

V

Apply voltage to UVIN pin

UVIN Hysteresis

200

300

400

mV

Apply voltage to UVIN pin

VIN Start Threshold

9.0

9.5

0.0

V

UVIN Floating

VIN Hysteresis

300

mV

UVIN Floating

Enable Pullup Current

0.4

µA

Apply voltage to EN pin

ERROR AMPLIFIER REFERENCE

Error Amplifier Reference 0.792 0.800

0.808

V

2X Gain Config.

Error Amplifier Reference

Over Line and Tempera-

ture

0.788

0.800

0.82

V

COMP Sink Current

70

50

230

µA

COMP Source Current

-230

-50

-70

µA

VFB Input Bias Current



50

00

nA

COMP Common Mode

Output Range

.9

3.0

3.2

V

COMP Pin Clamp

Voltage

3.2

3.5

3.8

V

VFB = 0.7V

ELECTRICAL SPECIFICATIONS

= 10KΩ.

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 maxi-

mum rating conditions for extended periods of time may affect reliability.

BST................................................................................................ 30V

BST-SWN ........................................................................................ 7V

SWN ....................................................................................-2V to 24V

GH ..........................................................................-0.3V to BST+0.3V

GH-SWN.......................................................................................... 6V

Peak Output Current < 10µs

GH,GL ............................................................................................. 2A

Storage Temperature...................................................

-65°C to 150°C

Power Dissipation........................................................................... W

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

Thermal Resistance..............................................................

41.9°C/W

ABSOLUTE MAXIMUM RATINGS