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LM25145RGYR 데이터시트(PDF) 11 Page - Texas Instruments

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부품명 LM25145RGYR
상세설명  6-V to 42-V Synchronous Buck DC-DC Controller With Wide Duty Cycle Range
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM25145RGYR 데이터시트(HTML) 11 Page - Texas Instruments

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Output Current (A)
0
2
4
6
8
10
0
20
40
60
80
100
VIN = 6V
VIN = 12V
VIN = 24V
VIN = 36V
Junction Temperature (°C)
-40
-25
-10
5
20
35
50
65
80
95
110 125
0.792
0.794
0.796
0.798
0.8
0.802
0.804
0.806
0.808
Output Current (A)
0
2
4
6
8
70
75
80
85
90
95
100
VIN = 18V
VIN = 24V
VIN = 28V
VIN = 36V
Output Current (A)
0.1
0.5
1
5
8
60
70
80
90
100
VIN = 18V
VIN = 24V
VIN = 28V
VIN = 36V
Output Current (A)
0
5
10
15
20
65
70
75
80
85
90
95
100
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
VIN = 32V
Output Current (A)
0.1
0.5
1
5
10
20
20
20
30
40
50
60
70
80
90
100
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
VIN = 32V
11
LM25145
www.ti.com
SNVSAT9 – JUNE 2017
Product Folder Links: LM25145
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
7.7 Typical Characteristics
VVIN = 24 V, RRT = 25 kΩ, SYNCIN tied to VCC, EN/UVLO tied to VIN (unless otherwise noted).
VOUT = 5 V
See Figure 46
VSYNCIN = VVCC
FSW = 500 kHz
RRT = 20 kΩ
Figure 1. Efficiency vs Load, CCM
VOUT = 5 V
See Figure 46
VSYNCIN = 0 V
FSW = 500 kHz
RRT = 20 kΩ
Figure 2. Efficiency vs Load, DCM
VOUT = 12 V
See Figure 57
VSYNCIN = VVCC
FSW = 425 kHz
RRT = 23.7 kΩ
Figure 3. Efficiency vs Load, CCM
VOUT = 12 V
See Figure 57
VSYNCIN = 0 V
FSW = 425 kHz
RRT = 23.7 kΩ
Figure 4. Efficiency vs Load, DCM
(VOUT Supplies Bias Power to VCC)
VOUT = 1.1 V
See Figure 70
FSW = 300 kHz
RRT = 33.2 kΩ
Figure 5. Efficiency vs Load, CCM
Figure 6. FB Voltage vs Junction Temperature


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