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LM2574 Folha de dados(PDF) 6 Page - Texas Instruments

Nome de Peças LM2574
Descrição Electrónicos  SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator
Download  38 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

LM2574 Folha de dados(HTML) 6 Page - Texas Instruments

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LM2574, LM2574HV
SNVS104D – JUNE 1999 – REVISED APRIL 2016
www.ti.com
Product Folder Links: LM2574 LM2574HV
Submit Documentation Feedback
Copyright © 1999–2016, Texas Instruments Incorporated
(1)
Test circuit in Figure 22 and Figure 27.
(2)
All limits specified at room temperature TYP and MAX. All room temperature limits are 100% production tested. All limits at temperature
extremes are specified through correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate
Average Outgoing Quality Level.
6.7 Electrical Characteristics – 5-V Version
TJ = 25°C, and all MIN and MAX apply over full operating temperature range (unless otherwise noted).
PARAMETER(1)
TEST CONDITIONS
MIN TYP(2)
MAX(2)
UNIT
VOUT
Output voltage
VIN = 12 V, ILOAD = 100 mA
4.9
5
5.1
V
LM2574, 7 V
≤ VIN ≤ 40 V,
0.1 A
≤ ILOAD ≤ 0.5 A
TJ = 25°C
4.8
5
5.2
−40°C ≤ TJ ≤ 125°C
4.75
5.25
LM2574HV, 7 V
≤ VIN ≤ 60 V,
0.1 A
≤ ILOAD ≤ 0.5 A
TJ = 25°C
4.8
5
5.225
−40°C ≤ TJ ≤ 125°C
4.75
5.275
η
Efficiency
VIN = 12 V, ILOAD = 0.5 A
77%
(1)
Test circuit in Figure 22 and Figure 27.
(2)
All limits specified at room temperature TYP and MAX. All room temperature limits are 100% production tested. All limits at temperature
extremes are specified through correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate
Average Outgoing Quality Level.
6.8 Electrical Characteristics – 12-V Version
TJ = 25°C, and all MIN and MAX apply over full operating temperature range (unless otherwise noted).
PARAMETER(1)
CONDITIONS
MIN TYP(2)
MAX(2)
UNIT
VOUT Output voltage
VIN = 25 V, ILOAD = 100 mA
11.76
12
12.24
V
LM2574, 15 V
≤ VIN ≤ 40 V,
0.1 A
≤ ILOAD ≤ 0.5 A
TJ = 25°C
11.52
12
12.48
−40°C ≤ TJ ≤ 125°C
11.4
12.6
LM2574HV, 15 V
≤ VIN ≤ 60 V,
0.1 A
≤ ILOAD ≤ 0.5 A
TJ = 25°C
11.52
12
12.54
−40°C ≤ TJ ≤ 125°C
11.4
12.66
η
Efficiency
VIN = 15 V, ILOAD = 0.5 A
88%
(1)
Test circuit in Figure 22 and Figure 27.
(2)
All limits specified at room temperature TYP and MAX. All room temperature limits are 100% production tested. All limits at temperature
extremes are specified through correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate
Average Outgoing Quality Level.
6.9 Electrical Characteristics – 15-V Version
TJ = 25°C, and all MIN and MAX apply over full operating temperature range (unless otherwise noted).
PARAMETER(1)
TEST CONDITIONS
MIN
TYP(2)
MAX(2)
UNIT
VOUT
Output voltage
VIN = 30 V, ILOAD = 100 mA
14.7
15
15.3
V
LM2574, 18 V
≤ VIN ≤ 40 V,
0.1A
≤ ILOAD ≤ 0.5 A
TJ = 25°C
14.4
15
15.6
−40°C ≤ TJ ≤ 125°C
14.25
15.75
LM2574HV, 18 V
≤ VIN ≤ 60 V,
0.1 A
≤ ILOAD ≤ 0.5 A
TJ = 25°C
14.4
15
15.68
−40°C ≤ TJ ≤ 125°C
14.25
15.83
η
Efficiency
VIN = 18 V, ILOAD = 0.5 A
88%


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