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| 型號(hào)： | MAX1718BEEI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II |
| 中文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, MO-137AD, QSOP-28 |
| 文件頁(yè)數(shù)： | 6/35頁(yè) |
| 文件大小： | 700K |
| 代理商： | MAX1718BEEI |
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M
Notebook CPU Step-Down Controller for Intel
Mobile Voltage Positioning (IMVP-II)
6
_______________________________________________________________________________________
Typical Operating Characteristics
(Circuit of Figure 1, V+ = 12V, V
DD
= V
CC
= SKP/
SDN
= 5V, V
OUT
= 1.25V, T
A
= +25
°
C, unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT
300kHz VOLTAGE POSITIONED
400
95
50-
0.01
0.1
1
10
100
M
LOAD CURRENT (A)
E
65
75
85
80
70
60
55
90
SKIP MODE
V+ = 7V
SKIP MODE
V+ = 20V
PWM MODE
V+ = 12V
PWM MODE
V+ = 20V
SKIP MODE
V+ = 12V
PWM MODE
V+ = 7V
300
200
100
0
0
10
5
15
20
FREQUENCY vs. LOAD CURRENT
M
LOAD CURRENT (A)
F
PWM MODE
SKIP MODE
250
280
270
260
290
300
310
320
330
340
350
7.0
13.8
10.4
17.2
20.6
24.0
FREQUENCY vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
F
I
OUT
= 18A
I
OUT
= 3A
323.0
324.0
323.5
325.0
324.5
325.5
326.0
-40
10
-15
35
60
85
FREQUENCY vs. TEMPERATURE
M
TEMPERATURE (
°
C)
F
I
OUT
= 19A
20
30
25
40
35
45
50
-40
10
-15
35
60
85
OUTPUT CURRENT AT CURRENT LIMIT
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
C
0
300
200
100
400
500
600
700
800
900
1000
5
10
15
20
25
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
S
μ
A
I
CC
+ I
DD
I+
Note 1:
On-Time specifications are measured from 50% to 50% at the DH pin, with LX forced to 0V, BST forced to 5V, and a 500pF
capacitor from DH to LX to simulate external MOSFET gate capacitance. Actual in-circuit times may be different due to
MOSFET switching speeds.
Note 2:
Specifications to T
A
= -40
°
C are guaranteed by design and not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
CC
= V
DD
= SKP/
SDN
= 5V, V
OUT
= 1.25V,
T
A
= -40°C to +85°C
, unless otherwise noted.) (Note 2)
CONDITIONS
PARAMETER
LOGIC AND I/O
D0
–
D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
ZMODE = V
CC
k
95
DAC B-Mode Programming
Resistor, High
D0
–
D4, ZMODE, SUS,
OVP
V
0.8
Logic Input Low Voltage
UNITS
MIN
TYP
MAX
D0
–
D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
ZMODE = V
CC
k
1.05
DAC B-Mode Programming
Resistor, Low
D0
–
D4, ZMODE, SUS,
OVP
V
2.4
Logic Input High Voltage
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