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參數(shù)資料
| 型號(hào)： | ADP3157JR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5-Bit Programmable Synchronous Controller for Pentium III Processors |
| 中文描述： | SWITCHING CONTROLLER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 173K |
| 代理商： | ADP3157JR |
REV. A
ADP3157
–5–
OUTPUT CURRENT – Amps
EFFICIENCY
–
%
100
65
1.4
2.8
14
4.2
5.6
7
9.8 11.2 12.6
8.4
95
85
80
75
70
90
VOUT = 2.0V
VOUT = 2.8V
VOUT = 3.5V
SEE FIGURE 2
VOUT = 1.3V
Figure 4. Efficiency vs. Output
Current
2
500ns/DIV
1
PRIMARY
N-DRIVE
DRIVER OUTPUT
SECONDARY
N-DRIVE
DRIVER OUTPUT
DRIVE 1 AND 2 = 5V/DIV
SEE FIGURE 2
Figure 7. Gate Switching Waveforms
OUTPUT CURRENT
1A TO 19A
OUTPUT VOLTAGE
20mV/DIV
10 s/DIV
Figure 10. Load Transient Response,
1 A–19 A of Figure 2 Circuit
TIMING CAPACITOR – pF
50
100
800
200
300
400
500
600
700
FREQUENCY
–
kHz
450
400
0
200
150
100
50
350
250
300
Figure 5. Frequency vs. Timing
Capacitor
100ns/DIV
SEE FIGURE 2
VCC = +12V
VIN = +5V
IOUT = 10A
Figure 8. Driver Transition
Waveforms
3
4
10ms/DIV
REGULATOR
OUTPUT VOLTAGE
1V/DIV
VCC VOLTAGE
5V/DIV
Figure 11. Power-On Start-Up
Waveform
OPERATING FREQUENCY – kHz
45
397
58
83
134
SUPPLY
CURRENT
–
mA
45
40
0
20
15
10
5
35
25
30
QGATE(TOTAL) = 100nC
Figure 6. Supply Current vs. Oper-
ating Frequency
10 s/DIV
OUTPUT CURRENT
19A TO 1A
OUTPUT VOLTAGE
20mV/DIV
Figure 9. Load Transient Response,
19 A–1 A of Figure 2 Circuit
OUTPUT ACCURACY – %
NUMBER
OF
PARTS
15
0
–0.55
–0.5
–0.45
25
20
10
5
–0.4
–0.35
–0.3
–0.25
–0.2
–0.15
–0.1
–0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
TA = +25 C
SEE FIGURE 13
Figure 12. Output Accuracy
Distribution, VOUT = 2.0 V
Typical Performance Characteristics–
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相關(guān)代理商/技術(shù)參數(shù) |
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