LM2576HVT-ADJ/LB03 National Semiconductor, LM2576HVT-ADJ/LB03 Datasheet - Page 3

• Manufacturer Part Number: LM2576HVT-ADJ/LB03
• Description: 3A STEP-DOWN SIMPLE SWITCHER
• Manufacturer: National Semiconductor

Specifications of LM2576HVT-ADJ/LB03

• Dc To Dc Converter Type: Inverting/Step Down
• Number Of Outputs: 1
• Pin Count: 5 +Tab
• Input Voltage: 60V
• Output Voltage: 1.23 to 57V
• Switching Freq: 47 TO 58KHz
• Output Current: 3A
• Efficiency: 77%
• Package Type: TO-220
• Output Type: Adjustable
• Switching Regulator: Yes
• Mounting: Through Hole
• Input Voltage (min): 4V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Leaded Process Compatible: No
• Rohs Compliant: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / Rohs Status: Not Compliant

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