MAX17080 Datasheet, PDF (7/48 Pages) Maxim Integrated Products – AMD 2-/3-Output Mobile Serial VID Controller

AMD 2-/3-Output Mobile Serial
VID Controller
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 2, V_IN = 12V, V_CC = V_DD = V_IN3 = V_SHDN = V_{PGD_IN} = 5V, V_DDIO = 1.8V, V_OPTION = V_{GNDS_} = V_AGND = V_PGND,
V_{FBDC_} = V_{FBAC_} = V_OUT3 = V_{CSP_} = V_CSN_ = 1.2V, all DAC codes set to the 1.2V code, T_A = -40°C to +105°C, unless otherwise
noted. Typical values are at T_A = +25°C.) (Note 5)
PARAMETER
INPUT SUPPLIES
Input Voltage Range
V_CC Undervoltage-Lockout
Threshold
SYMBOL
CONDITIONS
V_IN
V_BIAS
V_IN3
V_DDIO
V_UVLO
Drain of external high-side MOSFET
V_CC, V_DD
V_CC 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
V_DDIO Undervoltage-Lockout
Threshold
V_DDIO rising, 100mV typical hysteresis,
0.7
latched, UV fault
0.9
V
V_IN3 Undervoltage-Lockout
Threshold
V_IN3 rising, 100mV typical hysteresis
2.5
2.7
V
Quiescent Supply Current (V_CC)
I_CC
Skip mode, FBDC_ and OUT3 forced
above their regulation points
Quiescent Supply Current
I_DDIO
Quiescent Supply Current (IN3)
I_IN3
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
V_OUT
for the NB SMPS;
30% duty cycle,
DAC codes from
0.5000V to 0.8250V
-7.5
no load, ILIM3 =
V_CC, V_OUT3 = V_DAC3 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
R_TIME = 143k
,
-10
SR = 6.25mV/µs
R_TIME = 35.7k
to
357k
, SR =
-15
25mV/µs to 2.5mV/µs
R_OSC = 143k
(f_OSC1 = f_OSC2 = 300kHz
-7.5
nominal, f_OSC3 = 600kHz nominal)
f_OSC1,
f_OSC2, ^{ROSC = 71.4k
(fOSC1 = fOSC2 = 600kHz}
f_OSC3
nominal, f_OSC3 = 1.2MHz nominal) to
432k
(f_OSC1 = f_OSC2 = 99kHz nominal,
-10
f_OSC3 = 199kHz nominal)
+10
%
+15
+7.5
%
+10
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