3

Rev F: /0/06

SP7652 Wide Input Voltage Range 6A, 600kHz, Buck Regulator

© Copyright 2006 Sipex Corporation

ELECTRICAL SPECIFICATIONS

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

PARAMETER

MIN. TYP. MAX.

UNITS

CONDITIONS

CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH

Ramp Amplitude

0.92

.

.28

V

RAMP Offset

.

V

COMP

until GH starts Switching

RAMP Offset Temp. Coefficient

-2

mV/°C

GH Minimum Pulsewidth

90

80

ns

•

Maximum Controllable Duty Ratio

92

97

%

Maximum Duty Ratio

Measured just before

pulsing begins

Maximum Duty Ratio

00

%

Valid for 20 cycles

Internal Oscillator Ratio

420

600

720

kHz

•

TIMERS: SOFT START

SS Charge Current:

0

µA

SS Discharge Current:



mA

•

Fault Present, SS =

0.2V

PROTECTION: Short Circuit & Thermal

Short Circuit Threshold Voltage

0.2

0.25

0.3

V

•

Hiccup Timeout

200

ms

Number of Allowable Clock Cycles

at 100% Duty Cycle

20

Cycles

Minimum GL Pulse After 20 Cycles

0.5

Cycles

Thermal Shutdown Temperature

45

°C

Thermal Recovery Temperature

35

°C

Thermal Hysteresis

0

°C

OUTPUT: POWER STAGE

5

mΩ

5

mΩ

Maximum Output Current

6

A