SNVS107C – JUNE 1999 – REVISED APRIL 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS
Maximum Supply Voltage
ON /OFF Pin Input Voltage
Output Voltage to Ground
Power Dissipation
Storage Temperature Range
Maximum Junction Temperature
Minimum ESD Rating
Lead Temperature
(1)
(2)
(1) (2)
LM2576
LM2576HV
(Steady State)
45V
63V
−0.3V ≤
V
≤
+V
IN
−1V
Internally Limited
−65°C
to +150°C
150°C
(C = 100 pF, R = 1.5 kΩ)
(Soldering, 10 Seconds)
2 kV
260°C
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensured specific performance limits. For ensured specifications and test
conditions, see
If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
OPERATING RATINGS
Temperature Range
Supply Voltage
LM2576/LM2576HV
LM2576
LM2576HV
−40°C ≤
T
J
≤
+125°C
40V
60V
ELECTRICAL CHARACTERISTICS LM2576-3.3, LM2576HV-3.3
Specifications with standard type face are for T
J
= 25°C, and those with
boldface type
apply over full Operating Temperature
Range.
Symbol
Parameter
Conditions
LM2576-3.3
LM2576HV-3.3
Typ
SYSTEM PARAMETERS Test Circuit
and
(2)
V
OUT
Output Voltage
V
IN
= 12V, I
LOAD
= 0.5A
Circuit of
and
6V
≤
V
IN
≤
40V, 0.5A
≤
I
LOAD
≤
3A
Circuit of
and
6V
≤
V
IN
≤
60V, 0.5A
≤
I
LOAD
≤
3A
Circuit of
and
V
IN
= 12V, I
LOAD
= 3A
3.3
3.234
3.366
3.3
3.168/3.135
3.432/3.465
3.3
3.168/3.135
3.450/3.482
75
V
V(Min)
V(Max)
V
V(Min)
V(Max)
V
V(Min)
V(Max)
%
Limit
(1)
Units
(Limits)
V
OUT
Output Voltage
LM2576
Output Voltage
LM2576HV
Efficiency
V
OUT
η
(1)
(2)
All limits specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits
are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control
(SQC) methods.
External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance.
When the LM2576/LM2576HV is used as shown in
and
system performance will be as shown in
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3
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