LM2576H National Semiconductor, LM2576H Datasheet - Page 3

• Manufacturer Part Number: LM2576H
• Description: SIMPLE SWITCHER 3A Step-Down Voltage Regulator
• Manufacturer: National Semiconductor

V
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
V
V
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
V
LM2576-3.3, LM2576HV-3.3
Electrical Characteristics
Symbol
LM2576-5.0, LM2576HV-5.0
Electrical Characteristics
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Supply Voltage
ON /OFF Pin Input Voltage
Output Voltage to Ground
Power Dissipation
Storage Temperature Range
Maximum Junction Temperature
Specifications with standard type face are for T
Range.
Specifications with standard type face are for T
Temperature Range.
OUT
OUT
OUT
OUT
OUT
OUT
Symbol
LM2576
LM2576HV
(Steady State)
Output Voltage
Output Voltage
LM2576
Output Voltage
LM2576HV
Efficiency
Output Voltage
Output Voltage
LM2576
Output Voltage
LM2576HV
Efficiency
Parameter
Parameter
V
Circuit of Figure 2
6V
Circuit of Figure 2
6V
Circuit of Figure 2
V
IN
IN
V
Circuit of Figure 2
0.5A
8V
Circuit of Figure 2
0.5A
8V
Circuit of Figure 2
V
−0.3V
= 12V, I
= 12V, I
Internally Limited
−65˚C to +150˚C
IN
IN
V
V
IN
IN
= 12V, I
= 12V, I
(Note 1)
J
J
V
V
= 25˚C, and those with boldface type apply over full Operating Temperature
= 25˚C, and those with Figure 2 boldface type apply over full Operating
IN
IN
I
I
40V, 0.5A
60V, 0.5A
LOAD
LOAD
LOAD
LOAD
V
Conditions
40V
60V
Conditions
150˚C
LOAD
LOAD
+V
45V
63V
−1V
= 0.5A
= 3A
3A,
3A,
IN
= 0.5A
= 3A
I
I
3
LOAD
LOAD
Minimum ESD Rating
Lead Temperature
Operating Ratings
Temperature Range
Supply Voltage
(C = 100 pF, R = 1.5 k )
(Soldering, 10 Seconds)
LM2576/LM2576HV
LM2576
LM2576HV
3A
3A
Typ
5.0
5.0
5.0
77
LM2576HV-5.0
Typ
3.3
3.3
3.3
75
LM2576-5.0
LM2576HV-3.3
LM2576-3.3
4.800/4.750
5.200/5.250
4.800/4.750
5.225/5.275
(Note 2)
3.168/3.135
3.432/3.465
3.168/3.135
3.450/3.482
Limit
4.900
5.100
(Note 2)
Limit
3.234
3.366
−40˚C
T
www.national.com
J
(Limits)
V(Max)
V(Max)
V(Max)
V(Min)
V(Min)
V(Min)
(Limits)
Units
V(Max)
V(Max)
V(Max)
V(Min)
V(Min)
V(Min)
+125˚C
Units
%
V
V
V
260˚C
%
V
V
V
2 kV
40V
60V