LM2576-12 MOTOROLA [Motorola, Inc], LM2576-12 Datasheet - Page 2

• Manufacturer Part Number: LM2576-12
• Description: Easy Switcher 3.0A Step-Down Voltage Regulator
• Manufacturer: MOTOROLA [Motorola, Inc]

Unregulated
ABSOLUTE MAXIMUM RATINGS
which damage to the device may occur.)
NOTE: ESD data available upon request.
2
Maximum Supply Voltage
ON/OFF Pin Input Voltage
Output Voltage to Ground (Steady–State)
Power Dissipation
Storage Temperature Range
Minimum ESD Rating (Human Body Model:
Lead Temperature (Soldering, 10 seconds)
Maximum Junction Temperature
Case 314B and 314D (TO–220, 5–Lead)
Case 936A (D 2 PAK)
C = 100 pF, R = 1.5 k )
DC Input
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
C in
Feedback
Rating
+V in
1
4
Unregulated
7.0 V – 40 V
DC Input
R2
R1
1.0 k
Band–Gap
Reference
Representative Block Diagram and Typical Application
1.235 V
Typical Application (Fixed Output Voltage Versions)
(Absolute Maximum Ratings indicate limits beyond
Figure 1. Block Diagram and Typical Application
Fixed Gain
Error Amplifier
100 F
18 kHz
Freq
Shift
C in
+V in
Oscillator
52 kHz
Symbol
1
R JC
R JC
R JA
R JA
T stg
V in
P D
P D
Comparator
T J
–
–
–
–
3.1 V Internal
Regulator
3
LM2576
Gnd
LM2576
–0.3 V
Internally Limited
Internally Limited
5
–65 to +150
Reset
Latch
ON/OFF
Value
–1.0
Current
260
150
5.0
5.0
2.0
45
65
70
Limit
V
Output
ON/OFF
Feedback
4
2
+V in
Shutdown
Driver
Thermal
D1
1N5822
100 H
L1
Unit
C/W
C/W
C/W
C/W
kV
W
W
V
V
V
1.0 Amp
C
C
C
Switch
C out
1000 F
MOTOROLA ANALOG IC DEVICE DATA
5.0 V Regulated
Output 3.0 A Load
ON/OFF
5
Output
2
Gnd
3
Voltage Versions
For adjustable version
R1 = open, R2 = 0
D1
Output
3.3 V
5.0 V
12 V
15 V
L1
C out
8.84 k
11.3 k
1.7 k
3.1 k
Regulated
( )
R2
Output
V out
Load