MAX1711 Maxim, MAX1711 Datasheet - Page 5

• Manufacturer Part Number: MAX1711
• Description: High-Speed / Digitally Adjusted Step-Down Controllers for Notebook CPUs
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
Note 2: On-Time and Off-Time specifications are measured from 50% point to 50% point at the DH pin with LX forced to 0V, BST
Note 3: Specifications from -40°C to 0°C are guaranteed but not production tested.
(7A CPU supply circuit of Figure 1, T
__________________________________________Typical Operating Characteristics
PGOOD Trip Threshold
PGOOD Output Low Voltage
PGOOD Leakage Current
100
100
90
80
70
60
50
40
90
80
70
60
50
40
0.01
0.01
forced to 5V, and a 250pF capacitor connected from DH to LX. Actual in-circuit times may differ due to MOSFET switching
speeds.
PARAMETER
EFFICIENCY vs. LOAD CURRENT
V
EFFICIENCY vs. LOAD CURRENT
IN
= 4.5V
(V
(V
Step-Down Controllers for Notebook CPUs
V
O
O
IN
V
= 2.0V, f = 300kHz)
IN
0.1
LOAD CURRENT (A)
= 1.6V, f = 550kHz)
0.1
LOAD CURRENT (A)
V
= 15V
V
IN
= 24V
IN
= 7V
BATT
_______________________________________________________________________________________
= 24V
V
V
IN
IN
= 4.5V
= 15V
=15V, V
1
1
V
IN
CC
= 7V
Measured at FB with respect to unloaded output voltage,
falling edge, hysteresis = 1%
I
High state, forced to 5.5V
SINK
= V
A
= +25°C, unless otherwise noted.)
10
10
DD
= 1mA
= 5V, SKIP = GND, T
High-Speed, Digitally Adjusted
350
300
250
200
150
100
100
50
90
80
70
60
50
40
0
0.01
0.01
V
V
IN
IN
EFFICIENCY vs. LOAD CURRENT
FREQUENCY vs. LOAD CURRENT
= 4.5V, SKIP MODE
= 15V, PWM MODE
CONDITIONS
V
(V
IN
O
= 7V
= 1.6V, f = 300kHz)
0.1
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
(V
A
O
= -40°C to +85°C, unless otherwise noted.) (Note 3)
V
V
= 1.6V)
IN
IN
= 4.5V
V
= 24V
IN
= 15V, SKIP MODE
1
1
TON = OPEN
V
IN
= 15V
10
10
100
320
318
316
314
312
310
308
306
304
302
300
90
80
70
60
50
40
0.01
0
MIN
-8.5
FREQUENCY vs. INPUT VOLTAGE
EFFICIENCY vs. LOAD CURRENT
V
5
O
(V
= 1.6V
O
TYP
= 1.3V, f = 300kHz)
0.1
LOAD CURRENT (A)
INPUT VOLTAGE (V)
10
V
IN
(I
= 7V
V
O
O
V
= 2.0V
IN
= 7A)
15
= 4.5V
V
MAX
IN
-2.5
0.4
= 24V
1
20
1
TON = OPEN
V
IN
= 15V
25
UNIT
µA
%
V
10
30
5