Oct10-07 RevJ

SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator

© 2007 Sipex Corporation

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

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

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at

these ratings or any other above those indicated in the operation sec-

tions of the specifications below is not implied. Exposure to absolute

maximum rating conditions for extended periods of time may affect

reliability.

electrical cHaracteristics

The ♦ denotes the specifications which apply over the full temperature range, unless otherwise specified.

PARAMETER

MIN typ MAX units

conDitions

Input Operating Voltage

2.85

5.5

V

= 5.5V

FB Set Voltage

0.784

0.8 0.816

V

♦

FB Set Current

-

0.0



Overall FB Accuracy

-4

4

%

Switching Frequency

.

.4

.6

MHz

Minimum On-Time-Duration

180

230

ns

SYNC Tracking Frequency

.0

.0

MHz

SYNC Input Current

-

0.0



♦

SYNC Logic Threshold Low

0.3

0.6

V

SYNC Logic Threshold High

.7

V

PMOS Switch Resistance

0.4

0.6

Ω

NMOS Switch Resistance

0.4

0.6

Ω

Inductor Current Limit

1.3

.5

.7

A

LX Leakage Current

-3

0.

3



5

mA

3

0

mA

UVLO Undervoltage Lockout Threshold,

.55

.7

2.85

V

UVLO hysteresis

6

%

Soft Start Current





4

SD

MODE Input Current

-

0.0



♦

SD

MODE Input Threshold Voltage

0.6

0.9

V

.5

1.8

V

Slope Compensation

700

Rising Over-Temperature Trip Point

40

°

C

Over-Temperature Hysteresis

4

°

C

Error Amplifier Transconductance



mA/V