sp7600 Exar Corporation, sp7600 Datasheet - Page 2

• Manufacturer Part Number: sp7600
• Description: 2amp, 29v Buck Converter For Led Driver Applications
• Manufacturer: Exar Corporation

_________________________________________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 sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
Input Voltage ...................................................... .-0.3V to 30V
Lx ........................................................................... -2V to 30V
FB................................................................ -0.3V to V
Power Dissipation ........................... Internally limited (Note 1)
Storage Temperature ....................................-65 °C to 150 °C
_________________________________________ELECTRICAL SPECIFICATIONS
Specifications are for T
Note 1: All parameters tested at T
UVLO Turn-On Threshold
UVLO Turn-Off Threshold
UVLO Hysteresis
Operating Input Voltage Range
Operating Input Voltage Range
Operating VCC Current
Standby VCC Current
Reference Voltage
Reference Voltage
Switching Frequency
Minimum ON-Pulse Duration
Minimum Duty Cycle
Maximum Duty Cycle
VDR voltage
Overcurrent Threshold
ISET pin Input Current
OFF interval during hiccup
SHDN Threshold
SHDN Threshold Hysteresis
Switch On Resistance
Switch Leakage
12/17/07 rev: A
EXAR RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-510-668-7000
PARAMETER
AMB
= T
J
=25°C, and those denoted by ♦ apply over the full operating range, -40°C
A
=25 °C. Specifications over temperature are guaranteed by design.
MIN
186
960
100
300
4.0
3.8
4.5
4.5
0.8
25
7
IN
+0.3V
1200
TYP
200
200
350
100
100
4.2
4.0
0.6
0.2
1.0
40
33
95
2
3
SP7600
2
MAX
1440
214
100
400
4.5
4.3
5.5
1.2
Junction Temperature............................... -40°C to 125°C
Lead Temperature (Soldering, 10 sec)...................300 °C
Thermal Resistance …….. ................................... 59°C/W
ESD Rating (LX, ISET) ......................................1KV HBM
ESD Rating (all other pins) ................................2KV HBM
29
29
40
3
1
0
5
UNITS
kHz
mA
mA
mV
mV
mV
mV
mΩ
uA
ms
µA
ns
%
%
V
V
V
V
V
V
V
♦
♦
♦
♦
♦
♦
♦
©Copyright 2007 Exar Corporation
0
0
0
VFB=0.1V, not switching
VFB=1.2V, not switching
Measure VIN – VDR,
VIN > 7V
Measure VIN - LX
V
Apply voltage to FB
°C≤T
°C≤T
°C≤T
LX
≤
= VIN
T
CONDITIONS
J
J
J
J
≤
≤125°C
≤125°C
≤125°C
125°C.
SP7600