Data Sheet

© 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN8303 • Rev. 1.2 4
FAN8303 — 2 A 23 V Non-Synchronous Step-Down DC/DC Regulator
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only. All voltage values, except differential voltages, are
given with respect to the network ground terminal. Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device
Symbol
Parameter
Min.
Max.
Unit
V
IN
Supply Voltage, VIN to GND
25
V
V
SW
Switch Voltage, SW to GND
-0.3
V
IN
+0.3
V
V
BS
Boost Voltage
V
SW
+ 6
V
V
FB
Feedback Voltage
-0.3
6.0
V
V
EN
Enable Voltage
-0.3
6.0
V
V
COMP
Compensation Voltage
-0.3
6.0
V
V
SS
Soft-Start Voltage
-0.3
6.0
V
Θ
JA
Thermal Resistance, Junction-Air
105
°C/W
Θ
JC
Thermal Resistance, Junction-Case
40
°C/W
T
J
Operating Junction Temperature
-40
+125
°C
T
L
Lead Temperature (Soldering, 5 Seconds)
+260
°C
T
STG
Storage Temperature Range
-65
+150
°C
ESD
Electrostatic Discharge
Protection Level
Human Body Model, JEDEC JESD22-A114
3.0
kV
Charged Device Model, JEDEC JESD22-C101
2.5
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol
Parameter
Min
Max.
Unit
V
IN
Supply Voltage
5
23
V
T
A
Operating Ambient Temperature
-40
+85
C