MAX17080 데이터 시트보기 (PDF) - Maxim Integrated
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MAX17080 Datasheet PDF : 48 Pages
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AMD 2-/3-Output Mobile Serial
VID Controller
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 2, VIN = 12V, VCC = VDD = VIN3 = VSHDN = VPGD_IN = 5V, VDDIO = 1.8V, VOPTION = VGNDS_ = VAGND = VPGND,
VFBDC_ = VFBAC_ = VOUT3 = VCSP_ = VCSN_ = 1.2V, all DAC codes set to the 1.2V code, TA = -40°C to +105°C, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 5)
PARAMETER
INPUT SUPPLIES
Input Voltage Range
VCC Undervoltage-Lockout
Threshold
SYMBOL
CONDITIONS
VIN
VBIAS
VIN3
VDDIO
VUVLO
Drain of external high-side MOSFET
VCC, VDD
VCC rising, 50mV typical hysteresis,
latched, UV fault
MIN TYP MAX UNITS
4
26
4.5
5.5
V
2.7
5.5
1.0
2.7
4.10
4.45
V
VDDIO Undervoltage-Lockout
Threshold
VDDIO rising, 100mV typical hysteresis,
0.7
latched, UV fault
0.9
V
VIN3 Undervoltage-Lockout
Threshold
VIN3 rising, 100mV typical hysteresis
2.5
2.7
V
Quiescent Supply Current (VCC)
ICC
Skip mode, FBDC_ and OUT3 forced
above their regulation points
Quiescent Supply Current
IDDIO
Quiescent Supply Current (IN3)
IIN3
Skip mode, OUT3 forced above its
regulation point
INTERNAL DACs, SLEW RATE, PHASE SHIFT
10
mA
25
µA
200
µA
DC Output Voltage Accuracy
Measured at FBDC_ DAC codes from
for the core SMPSs; 0.8375V to 1.5500V
-0.7
measured at OUT3
VOUT
for the NB SMPS;
30% duty cycle,
DAC codes from
0.5000V to 0.8250V
-7.5
no load, ILIM3 =
VCC, VOUT3 = VDAC3 DAC codes from
+ 12.5mV (Note 3) 12.5mV to 0.4875V
-15
+0.7
%
+7.5
mV
+15
Slew-Rate Accuracy
Switching Frequency Accuracy
During transition
RTIME = 143k,
-10
SR = 6.25mV/µs
RTIME = 35.7k to
357k, SR =
-15
25mV/µs to 2.5mV/µs
ROSC = 143k (fOSC1 = fOSC2 = 300kHz
-7.5
nominal, fOSC3 = 600kHz nominal)
fOSC1,
fOSC2, ROSC = 71.4k (fOSC1 = fOSC2 = 600kHz
fOSC3
nominal, fOSC3 = 1.2MHz nominal) to
432k (fOSC1 = fOSC2 = 99kHz nominal,
-10
fOSC3 = 199kHz nominal)
+10
%
+15
+7.5
%
+10
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