LM2575D2T-005 Datasheet, PDF (3/28 Pages) ON Semiconductor – 1.0 A, Adjustable Output Voltage, Step-Down

LM2575, NCV2575
OPERATING RATINGS (Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee
specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.)
Rating
Symbol
Value
Unit
Operating Junction Temperature Range
Supply Voltage
T_J
−40 to +125
°C
V_in
40
V
SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 14)
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, V_in = 12 V for the 3.3 V, 5.0 V, and Adjustable version, V_in = 25 V
for the 12 V version, and V_in = 30 V for the 15 V version. I_Load = 200 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.)
Characteristics
Symbol
Min
Typ
Max
Unit
LM2575−3.3 (Note 1 Test Circuit Figure 14)
Output Voltage (V_in = 12 V, I_Load = 0.2 A, T_J = 25°C)
Output Voltage (4.75 V ≤ V_in ≤ 40 V, 0.2 A ≤ I_Load ≤ 1.0 A)
T_J = 25°C
T_J = −40 to +125°C
Efficiency (V_in = 12 V, I_Load = 1.0 A)
V_out
3.234
3.3
3.366
V
V_out
V
3.168
3.3
3.432
3.135
−
3.465
η
−
75
−
%
LM2575−5 ([Note 1] Test Circuit Figure 14)
Output Voltage (V_in = 12 V, I_Load = 0.2 A, T_J = 25°C)
Output Voltage (8.0 V ≤ V_in ≤ 40 V, 0.2 A ≤ I_Load ≤ 1.0 A)
T_J = 25°C
T_J = −40 to +125°C
Efficiency (V_in = 12 V, I_Load = 1.0 A)
V_out
4.9
5.0
5.1
V
V_out
V
4.8
5.0
5.2
4.75
−
5.25
η
−
77
−
%
LM2575−12 (Note 1 Test Circuit Figure 14)
Output Voltage (V_in = 25 V, I_Load = 0.2 A, T_J = 25°C)
Output Voltage (15 V ≤ V_in ≤ 40 V, 0.2 A ≤ I_Load ≤ 1.0 A)
T_J = 25°C
T_J = −40 to +125°C
Efficiency (V_in = 15V, I_Load = 1.0 A)
V_out
11.76
12
12.24
V
V_out
V
11.52
12
12.48
11.4
−
12.6
η
−
88
−
%
LM2575−15 (Note 1 Test Circuit Figure 14)
Output Voltage (V_in = 30 V, I_Load = 0.2 A, T_J = 25°C)
Output Voltage (18 V ≤ V_in ≤ 40 V, 0.2 A ≤ I_Load ≤ 1.0 A)
T_J = 25°C
T_J = −40 to +125°C
Efficiency (V_in = 18 V, I_Load = 1.0 A)
V_out
14.7
15
15.3
V
V_out
V
14.4
15
15.6
14.25
−
15.75
η
−
88
−
%
LM2575 ADJUSTABLE VERSION (Note 1 Test Circuit Figure 14)
Feedback Voltage (V_in = 12 V, I_Load = 0.2 A, V_out = 5.0 V, T_J = 25°C)
V_FB
1.217
1.23
1.243
V
Feedback Voltage (8.0 V ≤ V_in ≤ 40 V, 0.2 A ≤ I_Load ≤ 1.0 A, V_out = 5.0 V)
V_FB
V
T_J = 25°C
1.193
1.23
1.267
T_J = −40 to +125°C
1.18
−
1.28
Efficiency (V_in = 12 V, I_Load = 1.0 A, V_out = 5.0 V)
η
−
77
−
%
1. External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance.
When the LM2575 is used as shown in the Figure 14 test circuit, system performance will be as shown in system parameters section.
2. Tested junction temperature range for the LM2575 and the NCV2575:
T_low = −40°C
T_high = +125°C
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