MAX17528 查看數據表（PDF） - Maxim Integrated
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MAX17528 Datasheet PDF : 41 Pages
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1-Phase Quick-PWM
Intel IMVP-6.5/GMCH Controllers
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, CLKEN pullup to 3.3V with 1.9kΩ, SHDN = SLOW = ILIM = PGDIN = VCC, SKIP =
GNDS = PGND = GND, VFB = VCSP = VCSN = 1.200V, D0–D6 set for 1.20V (D0–D6 = 0001100). TA = -40°C to +105°C, unless other-
wise specified.) (Note 2)
PARAMETER
PWM CONTROLLER
Input-Voltage Range
DC Output-Voltage Accuracy
Boot Voltage
GNDS Input Range
GNDS Gain
TIME Voltage
TIME Slew-Rate Accuracy
On-Time
Minimum Off-Time
BIAS CURRENTS
SYMBOL
CONDITIONS
MIN
VBOOT
AGNDS
VTIME
tON
tOFF(MIN)
VCC, VDD
Measured at FB with
respect to GNDS;
includes load-
regulation error
(Note 3)
DAC codes from
0.8125V to 1.5000V
DAC codes from
0.3750V to 0.8000V
DAC codes from 0V
to 0.3625V
IMVP-6.5 (CLKEN pullup to 3.3V with 1.9k)
VOUT/VGNDS, -200mV VGNDS +200mV
VCC = 4.5V to 5.5V,
ITIME = 28µA (RTIME = 71.5k)
RTIME = 71.5k (12.5mV/µs nominal)
RTIME = 35.7k (25mV/µs nominal) to
178k (5mV/µs nominal)
Soft-start and soft-shutdown;
RTIME = 35.7k (3.125mV/µs nominal) to
178k (0.625mV/µs nominal)
SLOW = GND,
RTIME = 35.7k (12.5mV/µs nominal) to
178k (2.5mV/µs nominal)
VIN = 12V, VFB = 1.2V
(Note 4)
RTON = 96.75k
RTON = 200k
RTON = 303.25k
Measured at DH (Note 4)
4.5
-0.75
-10
-25
1.085
-200
0.95
1.98
-10
-15
-20
-20
142
300
425
MAX UNITS
5.5
V
+0.75
%
+10
mV
+25
1.115
V
+200 mV
1.05
V/V
2.02
V
+10
+15
+20
%
+20
192
366
ns
575
400
ns
Quiescent Supply Current (VCC)
FAULT PROTECTION
ICC
Measured at VCC, VSKIP = 5V,
FB forced above the regulation point
3
mA
Output Undervoltage-Protection
Threshold
VUVP
Measured at FB with respect to unloaded
output voltage
-460
-340
mV
IMVP-6.5, CLKEN pullup to 3.3V with
IMVP-6.5 CLKEN Startup Delay
(Boot Time Period, CLKEN Pullup
to 3.3V with 1.9k)
tBOOT
1.9k; measured from the time when FB
reaches the boot target voltage (Note 3);
the time needed for FB to reach this target
voltage is based on the slew rate set by
20
RTIME
100
µs
6 _______________________________________________________________________________________
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