Datasheet

LM2576, LM2576HV
www.ti.com SNVS107C –JUNE 1999–REVISED APRIL 2013
ELECTRICAL CHARACTERISTICS LM2576-15, LM2576HV-15
Specifications with standard type face are for T
J
= 25°C, and those with boldface type apply over full Operating Temperature
Range.
LM2576-15
Units
LM2576HV-15
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 15 V
Circuit of Figure 21 and Figure 22 14.70 V(Min)
15.30 V(Max)
V
OUT
Output Voltage 0.5A ≤ I
LOAD
≤ 3A, 15 V
LM2576 18V ≤ V
IN
≤ 40V 14.40/14.25 V(Min)
Circuit of Figure 21 and Figure 22 15.60/15.75 V(Max)
V
OUT
Output Voltage 0.5A ≤ I
LOAD
≤ 3A, 15 V
LM2576HV 18V ≤ V
IN
≤ 60V 14.40/14.25 V(Min)
Circuit of Figure 21 and Figure 22 15.68/15.83 V(Max)
η Efficiency V
IN
= 18V, 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.
ELECTRICAL CHARACTERISTICS LM2576-ADJ, LM2576HV-ADJ
Specifications with standard type face are for T
J
= 25°C, and those with boldface type apply over full Operating Temperature
Range.
LM2576-ADJ
Units
LM2576HV-ADJ
Symbol Parameter Conditions
(Limits)
Typ Limit
(1)
SYSTEM PARAMETERS Test Circuit Figure 21 and Figure 22
(2)
V
OUT
Feedback Voltage V
IN
= 12V, I
LOAD
= 0.5A 1.230 V
V
OUT
= 5V, 1.217 V(Min)
Circuit of Figure 21 and Figure 22 1.243 V(Max)
V
OUT
Feedback Voltage 0.5A ≤ I
LOAD
≤ 3A, 1.230 V
LM2576 8V ≤ V
IN
≤ 40V 1.193/1.180 V(Min)
V
OUT
= 5V, Circuit of Figure 21 and Figure 22 1.267/1.280 V(Max)
V
OUT
Feedback Voltage 0.5A ≤ I
LOAD
≤ 3A, 1.230 V
LM2576HV 8V ≤ V
IN
≤ 60V 1.193/1.180 V(Min)
V
OUT
= 5V, Circuit of Figure 21 and Figure 22 1.273/1.286 V(Max)
η Efficiency V
IN
= 12V, I
LOAD
= 3A, V
OUT
= 5V 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.
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