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LT7184S データシート(PDF) 16 Page - Analog Devices

部品番号 LT7184S
部品情報  Dual Channel 9A, 16V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management
PDF  52 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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LT7184S データシート(HTML) 16 Page - Analog Devices

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Data Sheet
LT7184S
analog.com
Rev. 0
16 of 52
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 4. 12V PVIN Efficiency/Power Loss at
fSW = 1000kHz, various VOUT
Figure 5. VOUT = 1.2V, fSW = 1000kHz Efficiency/
Power Loss, various PVIN
Figure 6. 5V PVIN to 0.8V VOUT Efficiency/
Power Loss various fSW
Figure 7. 5V PVIN to 0.6V VOUT Efficiency at
various fSW
Figure 8. Load Regulation
Figure 9. Line Regulation
EXTVCC = 4V
EFFICIENCY
POWER LOSS
VOUT = 0.8V, XGL4030-301
VOUT = 1.2V, XGL4030-471
VOUT = 1.5V, XGL4030-601
IOUT (A)
0
1
2
3
4
5
6
7
8
9
10
70
75
80
85
90
95
100
0
0.5
1.0
1.5
2.0
2.5
3.0
EXTVCC = 4V
XGL4030-601
EFFICIENCY
POWER LOSS
MAX LOAD AT PVIN = 3.3V
LIMITED TO 7A SO AS NOT TO
EXCEED ABS MAX AVERAGE PVIN
INPUT SUPPLY CURRENT RATING
PVIN = 3.3V
PVIN = 8V
PVIN = 16V
IOUT (A)
0
1
2
3
4
5
6
7
8
9
10
70
75
80
85
90
95
100
0
0.5
1.0
1.5
2.0
2.5
3.0
EXTVCC = 4V
XGL4030-601
EFFICIENCY
POWER LOSS
fSW = 500kHz
fSW = 1000kHz
fSW = 2000kHz
IOUT (A)
0
1
2
3
4
5
6
7
8
9
10
70
75
80
85
90
95
100
0
0.5
1.0
1.5
2.0
2.5
3.0
EXTVCC = 4V
EFFICIENCY
POWER LOSS
fSW = 500kHz, XGL4030-471
fSW = 1000kHz, XGL4020-251
0
1
2
3
4
5
6
7
8
9
10
70
75
80
85
90
95
100
0
0.5
1.0
1.5
2.0
2.5
3.0
IOUT (A)
EXTVCC = 4V
XGL4030-601
VOUT = 600mV, PVIN = 5V, fSW = 500kHz
VOUT = 1200mV, PVIN = 5V, fSW = 1000kHz
VOUT = 1800mV, PVIN = 5V, fSW = 1500kHz
VOUT = 600mV, PVIN = 12V, fSW = 500kHz
VOUT = 1200mV, PVIN = 12V, fSW = 1000kHz
VOUT = 1800mV, PVIN = 12V, fSW = 1500kHz
IOUT (A)
0
1
2
3
4
5
6
7
8
9
10
–0.0010
–0.0008
–0.0006
–0.0004
–0.0002
0.0000
0.0002
0.0004
0.0006
0.0008
0.0010
EXTVCC = 4V
XGL4030-471
VOUT = 705mV, LOAD = 0A, 1A, 2A, 3A, fSW = 800kHz
VOUT = 940mV, LOAD = 0A, 1A, 2A, 3A, fSW = 750kHz
VOUT = 1175mV, LOAD = 0A, 1A, 2A, 3A, fSW = 700kHz
VIN (V)
0
2
4
6
8
10
12
14
16
–0.05
–0.04
–0.03
–0.02
–0.01
0.00
0.01
0.02
0.03
0.04
0.05



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