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ADP2323ACPZ-R7 数据表(PDF) 9 Page - Analog Devices

部件名 ADP2323ACPZ-R7
功能描述  Dual 3 A, 20 V Synchronous Step-Down Regulator with Integrated High-Side MOSFET
PDF  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP2323ACPZ-R7 数据表(HTML) 9 Page - Analog Devices

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Data Sheet
ADP2323
Rev. A | Page 9 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
Operating conditions: TA = 25°C, VIN = 12 V, VOUT = 3.3 V, L = 4.7 µH, COUT = 2 × 47 µF, fSW = 600 kHz, unless otherwise noted.
50
55
60
65
70
75
80
85
90
95
100
0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT (A)
VOUT = 5.0V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
INDUCTOR: CDRH105RNP-3R3N
MOSFET: FDS8880
Figure 5. Efficiency at VIN = 12 V, fSW = 600 kHz, FPWM
0
10
20
30
40
50
60
70
80
90
100
VOUT = 3.3V, FPWM
VOUT = 3.3V, PFM
VOUT = 5V, FPWM
VOUT = 5V, PFM
INDUCTOR: CDRH105RNP-3R3N
MOSFET: FDS8880
0.01
0.1
1
10
OUTPUT CURRENT (A)
Figure 6. Efficiency at VIN = 12 V, fSW = 600 kHz, PFM
10
15
20
25
30
35
40
4
6
8
10
12
14
16
18
20
VIN (V)
TJ = –40°C
TJ = +25°C
TJ = +125°C
Figure 7. Shutdown Current vs. VIN
0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT (A)
INDUCTOR: CDRH105RNP-6R8N
MOSFET: FDS8880
VOUT = 5.0V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
50
55
60
65
70
75
80
85
90
95
100
Figure 8. Efficiency at VIN = 12 V, fSW = 300 kHz, FPWM
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
OUTPUT CURRENT (A)
VOUT = 3.3V, FPWM
VOUT = 3.3V, PFM
VOUT = 5V, FPWM
VOUT = 5V, PFM
INDUCTOR: CDRH105RNP-6R8N
MOSFET: FDS8880
Figure 9. Efficiency at VIN = 12 V, fSW = 300 kHz, PFM
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
3.20
4
6
8
10
12
14
16
18
20
VIN (V)
TJ = –40°C
TJ = +25°C
TJ = +125°C
Figure 10. Quiescent Current vs. VIN



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