DC/DC Step-down Switching Regulator: LM2576 3A

DC/DC Step-down Switching Regulator: LM2576 3A
Model:LM2576
Brand:HN, NS, On Semi
Origin:Made In China
Category:Electronics & Electricity / Electronic Components / Integrated Circuit
Label:LM2576-5.0 , LM2576-3.3 , DC-DC converter
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Product Description

3A Step-Down Switching Regulator. Pin-pin replacement of UC2576, MIC2576
ABSOLUTE MAXIMUM RATINGS (Note 1)
Maximum Supply Voltage
LM2576                                   45V
LM2576HV                                63V
ON /OFF Pin Input Voltage       -0.3V ≤ V ≤ +VIN
Output Voltage to Ground (Steady State)      -1V
Power Dissipation              Internally Limited
 
Storage Temperature Range    -65°C to +150°C
Maximum Junction Temperature          150°C
Minimum ESD Rating
(C = 100 pF, R = 1.5 kΩ)                   2kV
Lead Temperature
(Soldering, 10 Seconds)                 260°C
 
OPERATING RATINGS
Temperature Range
LM2576/LM2576HV         -40°C ≤ TJ ≤ +125°C
 
 
Supply Voltage
LM2576                                 40V
LM2576HV                              60V
 
LM2576-3.3, LM2576HV-3.3 ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.
Symbol
Parameter
Conditions
LM2576-3.3
LM2576HV-3.3
Units
(Limits)
Type
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Output Voltage
VIN= 12V, ILOAD= 0.5A
Circuit of Figure 2
3.3
 
 
 
3.234
3.366
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576
6V ≤VIN≤ 40V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
3.3
 
 
 
3.168/3.135
3.432/3.465
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576HV
6V ≤VIN≤ 60V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
3.3
 
 
 
3.168/3.135
3.450/3.482
V
V(Min)
V(Max)
η
Efficiency
VIN= 12V, ILOAD= 3A
75
 
%
 
LM2576-5.0, LM2576HV-5.0 ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.
Symbol
Parameter
Conditions
LM2576-5.0
LM2576HV-5.0
Units
(Limits)
Type
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Output Voltage
VIN= 12V, ILOAD= 0.5A
Circuit of Figure 2
5.0
 
 
 
4.900
5.100
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576
8V ≤VIN≤ 40V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
5.0
 
 
 
4.800/4.750
5.200/5.250
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576HV
8V ≤VIN≤ 60V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
5.0
 
 
 
4.800/4.750
5.225/5.275
V
V(Min)
V(Max)
η
Efficiency
VIN= 12V, ILOAD= 3A
77
 
%
 
 
LM2576-12, LM2576HV-12 ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.
Symbol
Parameter
Conditions
LM2576-12
LM2576HV-12
Units
(Limits)
Type
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Output Voltage
VIN= 25V, ILOAD= 0.5A
Circuit of Figure 2
12
 
 
 
11.76
12.24
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576
15V ≤VIN≤ 40V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
12
 
 
 
11.52/11.40
12.48/12.60
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576HV
15V ≤VIN≤ 60V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
12
 
 
 
11.52/11.40
12.54/12.66
V
V(Min)
V(Max)
η
Efficiency
VIN= 15V, ILOAD= 3A
88
 
%
 
LM2576-15, LM2576HV-15 ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.
Symbol
Parameter
Conditions
LM2576-15
LM2576HV-15
Units
(Limits)
Type
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Output Voltage
VIN= 25V, ILOAD= 0.5A
Circuit of Figure 2
15
 
 
 
14.70
15.30
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576
18V ≤VIN≤ 40V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
15
 
 
 
14.40/14.25
15.60/15.75
V
V(Min)
V(Max)
VOUT
Output Voltage
LM2576HV
18V ≤VIN≤ 60V, 0.5A ≤ ILOAD≤ 3A
Circuit of Figure 2
15
 
 
 
14.40/14.25
15.68/15.83
V
V(Min)
V(Max)
η
Efficiency
VIN= 18V, ILOAD= 3A
88
 
%
 
LM2576-ADJ, LM2576HV-ADJ ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.
Symbol
Parameter
Conditions
LM2576-ADJ
LM2576HV-ADJ
Units
(Limits)
Type
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Feedback Voltage
VIN= 12V, ILOAD= 0.5A
VOUT= 5V
Circuit of Figure 2
1.230
 
 
 
1.217
1.243
V
V(Min)
V(Max)
VOUT
Feedback Voltage
LM2576
8V ≤VIN≤ 40V, 0.5A ≤ ILOAD≤ 3A
VOUT= 5V
Circuit of Figure 2
1.230
 
 
 
1.193/1.180
1.267/1.280
V
V(Min)
V(Max)
VOUT
Feedback Voltage
LM2576HV
8V ≤VIN≤ 60V, 0.5A ≤ ILOAD≤ 3A
VOUT= 5V
Circuit of Figure 2
1.230
 
 
 
1.193/1.180
1.273/1.286
V
V(Min)
V(Max)
η
Efficiency
VIN= 12V, ILOAD= 3A, VOUT= 5V
77
 
%
 
 
ALL OUTPUT VOLTAGE VERSIONS ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN= 12V for the 3.3V, 5V, and Adjustable version, VIN= 25V for the 12V version, and VIN= 30V for the 15V version. ILOAD= 500 mA.
Symbol
Parameter
Conditions
LM2576-XX
LM2576HV-XX
Units
(Limits)
Type
Limit
(Note 2)
DEVICE PARAMETERS
Ib
Feedback Bias Current
VOUT= 5V (Adjustable Version Only)
50
100/500
nA
fO
Oscillator Frequency
(Note 11)
52
 
 
 
47/42
58/63
kHz
kHz(Min)
kHz(Max)
VSAT
Saturation Voltage
IOUT = 3A (Note 4)
1.4
 
 
1.8/2.0
V
V(Max)
DC
Max Duty Cycle (ON)
(Note 5)
specifications:LM2576T-3.3, 5.0, 12, 15, ADJ. LM2576S-3.3, 5.0, 12, 15, ADJ
LM2576HVT-3.3, 5.0, 12, 15, ADJ. LM2576HVS-3.3, 5.0, 12, 15, ADJ
Advantages:3A output
Export Markets:Mainland China, SEA, USA,Taiwan, Hong Kong
Payment Details:T/T Advance
DC/DC Step-down Switching Regulator: LM2576 3A 1DC/DC Step-down Switching Regulator: LM2576 3A 2

Member Information

Nanjing Honano Electronic Co., Ltd.
Country/Region:Jiang Su - China
Business Nature:Manufacturer
Phone:86-25-68853600-801
Contact:Jimmy Xu (Manager)
Last Online:19 Nov, 2023

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