MAX1718 Maxim, MAX1718 Datasheet - Page 6

• Manufacturer Part Number: MAX1718
• Description: Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
Notebook CPU Step-Down Controller for Intel
Mobile Voltage Positioning (IMVP - II)
6
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
Note 2: Specifications to T
(Circuit of Figure 1, V+ = 12V, V
LOGIC AND I/O
Logic Input High Voltage
Logic Input Low Voltage
DAC B-Mode Programming
Resistor, Low
DAC B-Mode Programming
Resistor, High
50-
95
90
85
80
75
70
65
60
55
326.0
325.5
325.0
324.5
324.0
323.5
323.0
_______________________________________________________________________________________
0.01
-40
SKIP MODE
V+ = 7V
SKIP MODE
V+ = 20V
capacitor from DH to LX to simulate external MOSFET gate capacitance. Actual in-circuit times may be different due to
MOSFET switching speeds.
I
EFFICIENCY vs. LOAD CURRENT
OUT
300kHz VOLTAGE POSITIONED
PARAMETER
FREQUENCY vs. TEMPERATURE
= 19A
SKIP MODE
V+ = 12V
0.1
-15
LOAD CURRENT (A)
TEMPERATURE (°C)
10
1
PWM MODE
V+ = 20V
PWM MODE
V+ = 12V
PWM MODE
V+ = 7V
35
A
= -40°C are guaranteed by design and not production tested.
10
DD
CC
60
= V
= V
D0–D4, ZMODE, SUS, OVP
D0–D4, ZMODE, SUS, OVP
D0–D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
ZMODE = V
D0–D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
ZMODE = V
CC
100
DD
85
= SKP/SDN = 5V, V
= SKP/SDN = 5V, V
400
300
200
100
CC
CC
0
50
45
40
35
30
25
20
0
-40
PWM MODE
OUTPUT CURRENT AT CURRENT LIMIT
FREQUENCY vs. LOAD CURRENT
CONDITIONS
-15
OUT
5
SKIP MODE
OUT
vs. TEMPERATURE
LOAD CURRENT (A)
TEMPERATURE (°C)
= 1.25V, T
10
= 1.25V, T
10
Typical Operating Characteristics
35
A
= +25°C, unless otherwise noted.)
15
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
60
20
85
1000
350
340
330
320
310
300
290
280
270
260
250
900
800
700
600
500
400
300
200
100
0
7.0
5
MIN
2.4
95
FREQUENCY vs. INPUT VOLTAGE
NO-LOAD SUPPLY CURRENT
10.4
10
vs. INPUT VOLTAGE
TYP
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
13.8
I
CC
15
+ I
DD
I+
17.2
MAX
1.05
I
0.8
OUT
I
OUT
= 18A
20
= 3A
20.6
UNITS
kΩ
kΩ
V
V
24.0
25