LM2576-12 MOTOROLA [Motorola, Inc], LM2576-12 Datasheet - Page 3

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

OPERATING RATINGS
intended to be functional, but do not guarantee specific performance limits. For guaranteed
specifications and test conditions, see the Electrical Characteristics.)
SYSTEM PARAMETERS
ELECTRICAL CHARACTERISTICS
the 12 V version, and V in = 30 V for the 15 V version. I Load = 500 mA. For typical values T J = 25 C, for min/max values T J is the operating
junction temperature range that applies [Note 2], unless otherwise noted.)
LM2576–3.3 ([Note 1] Test Circuit Figure 15)
LM2576–5 ([Note 1] Test Circuit Figure 15)
LM2576–12 ([Note 1] Test Circuit Figure 15)
LM2576–15 ([Note 1] Test Circuit Figure 15)
LM2576 ADJUSTABLE VERSION ([Note 1] Test Circuit Figure 15)
NOTES: 1. External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the
MOTOROLA ANALOG IC DEVICE DATA
Operating Junction Temperature Range
Supply Voltage
Output Voltage (V in = 12 V, I Load = 0.5 A, T J = 25 C)
Output Voltage (6.0 V
Efficiency (V in = 12 V, I Load = 3.0 A)
Output Voltage (V in = 12 V, I Load = 0.5 A, T J = 25 C)
Output Voltage (8.0 V
Output Voltage (V in = 25 V, I Load = 0.5 A, T J = 25 C)
Output Voltage (15 V
Efficiency (V in = 15 V, I Load = 3.0 A)
Output Voltage (V in = 30 V, I Load = 0.5 A, T J = 25 C)
Output Voltage (18 V
Efficiency (V in = 18 V, I Load = 3.0 A)
Feedback Voltage (V in = 12 V, I Load = 0.5 A, V out = 5.0 V, T J = 25 C)
Feedback Voltage (8.0 V
Efficiency (V in = 12 V, I Load = 3.0 A, V out = 5.0 V)
T J = 25 C
T J = –40 to +125 C
T J = 25 C
T J = –40 to +125 C
Efficiency (V in = 12 V, I Load = 3.0 A)
T J = 25 C
T J = –40 to +125 C
T J = 25 C
T J = –40 to +125 C
T J = 25 C
T J = –40 to +125 C
2. Tested junction temperature range for the LM2576:
LM2576 is used as shown in the Figure 15 test circuit, system performance will be as shown in system parameters section .
Rating
V in
V in
V in
V in
(Operating Ratings indicate conditions for which the device is
V in
Characteristics
40 V, 0.5 A
40 V, 0.5 A
40 V, 0.5 A
40 V, 0.5 A
([Note 1] Test Circuit Figure 15)
40 V, 0.5 A
(Unless otherwise specified, V in = 12 V for the 3.3 V, 5.0 V, and Adjustable version, V in = 25 V for
I Load
I Load
I Load
I Load
I Load
3.0 A)
3.0 A)
3.0 A)
3.0 A)
3.0 A, V out = 5.0 V)
Symbol
V in
T J
T low = –40 C
LM2576
–40 to +125
Value
40
T high = +125 C
Symbol
V out
V out
V out
V out
V out
V out
V out
V out
V out
V out
Unit
V
C
3.234
3.168
3.135
11.52
14.25
1.193
1.217
4.75
11.76
14.4
1.18
11.4
Min
14.7
4.8
4.9
–
–
–
–
–
1.23
Typ
1.23
3.3
3.3
5.0
5.0
12
15
75
77
12
88
15
88
77
–
–
–
–
–
3.366
3.432
3.465
12.48
15.75
1.267
12.24
1.243
Max
5.25
12.6
15.6
1.28
15.3
5.2
5.1
–
–
–
–
–
Unit
V
V
%
%
%
%
%
V
V
V
V
V
V
V
V
3