Datasheet
LM2576, LM2576HV
SNVS107C –JUNE 1999–REVISED APRIL 2013
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ELECTRICAL CHARACTERISTICS LM2576-5.0, LM2576HV-5.0
Specifications with standard type face are for T
J
= 25°C, and those with Figure 21 and Figure 22 boldface type apply over
full Operating Temperature Range.
LM2576-5.0
Units
LM2576HV-5.0
Symbol Parameter Conditions
(Limits)
Typ Limit
(1)
SYSTEM PARAMETERS Figure 21 and Figure 22
(2)
V
OUT
Output Voltage V
IN
= 12V, I
LOAD
= 0.5A 5.0 V
Circuit of Figure 21 and Figure 22 4.900 V(Min)
5.100 V(Max)
V
OUT
Output Voltage 0.5A ≤ I
LOAD
≤ 3A, 5.0 V
LM2576 8V ≤ V
IN
≤ 40V 4.800/4.750 V(Min)
Circuit of Figure 21 and Figure 22 5.200/5.250 V(Max)
V
OUT
Output Voltage 0.5A ≤ I
LOAD
≤ 3A, 5.0 V
LM2576HV 8V ≤ V
IN
≤ 60V 4.800/4.750 V(Min)
Circuit of Figure 21 and Figure 22 5.225/5.275 V(Max)
η Efficiency V
IN
= 12V, I
LOAD
= 3A 77 %
(1) 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.
(2) 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 Figure 21 and Figure 22, system performance will be as shown in ELECTRICAL
CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS.
ELECTRICAL CHARACTERISTICS LM2576-12, LM2576HV-12
Specifications with standard type face are for T
J
= 25°C, and those with boldface type apply over full Operating Temperature
Range.
LM2576-12
Units
LM2576HV-12
Symbol Parameter Conditions
(Limits)
Typ Limit
(1)
SYSTEM PARAMETERS Test Circuit Figure 21 and Figure 22
(2)
V
OUT
Output Voltage V
IN
= 25V, I
LOAD
= 0.5A 12 V
Circuit of Figure 21 and Figure 22
V(Min)
11.76
12.24 V(Max)
V
OUT
Output Voltage 0.5A ≤ I
LOAD
≤ 3A, 12 V
LM2576 15V ≤ V
IN
≤ 40V
V(Min)
11.52/11.40
Circuit of Figure 21 and Figure 22 and
12.48/12.60 V(Max)
V
OUT
Output Voltage 0.5A ≤ I
LOAD
≤ 3A, 12 V
LM2576HV 15V ≤ V
IN
≤ 60V
V(Min)
11.52/11.40
Circuit of Figure 21 and Figure 22
12.54/12.66 V(Max)
η Efficiency V
IN
= 15V, I
LOAD
= 3A 88 %
(1) 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.
(2) 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 Figure 21 and Figure 22, system performance will be as shown in ELECTRICAL
CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS.
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