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參數(shù)資料
| 型號： | MAX1939EEI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
| 中文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, MO-137, QSOP-28 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 586K |
| 代理商： | MAX1939EEI |
ENABLE SIGNAL
OUTPUT VOLTAGE:
0.5V/div
POK SIGNAL
20ms/div
MAX1937 toc18
SHUTDOWN WAVEFORM
WITH 40A LOAD
INDUCTOR CURRENT:
10A/div
M
Two-Phase Desktop CPU Core Supply Controllers
with Controlled VID Change
_______________________________________________________________________________________
9
CURRENT-SENSE THRESHOLD vs. V
ILIM
M
V
ILIM
(V)
C
1.3
1.1
0.9
0.7
60
80
100
120
140
160
40
0.5
1.5
V
IN
= 12V
V
OUT
= 1.45V
T
A
= +25
°
C
T
A
= +80
°
C
Typical Operating Characteristics (continued)
(V
IN
= 12V, V
OUT
= 1.45V, T
A
= +25
°
C, unless otherwise noted.)
ENABLE SIGNAL
OUTPUT VOLTAGE:
0.5V/div
POK SIGNAL
1ms/div
MAX1937 toc16
WITH 40A LOAD
INDUCTOR CURRENT:
10A/div
ENABLE SIGNAL
OUTPUT VOLTAGE:
0.5V/div
POK SIGNAL
20ms/div
MAX1937 toc17
SHUTDOWN WAVEFORM
WITH NO LOAD
INDUCTOR CURRENT:
10A/div
40
μ
s/div
MAX1937 toc14
LOAD TRANSIENT
1A TO 40A TO 1A
TRANSIENT CONTROL
SIGNAL:
C6
= 47pF
R2
= 91.1k
INDUCTOR CURRENTS:
10A/div
OUTPUT VOLTAGE:
50mV/div
ENABLE SIGNAL
OUTPUT VOLTAGE:
0.5V/div
POK SIGNAL
1ms/div
MAX1937 toc15
SOFT-START WAVEFORMS
WITH NO LOAD
INDUCTOR CURRENT:
10A/div
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