MAX17480 Maxim Integrated Products, MAX17480 Datasheet - Page 3

• Manufacturer Part Number: MAX17480
• Description: AMD 2-/3-Output Mobile Serial VID Controller
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 2, V
FBDC_ = FBAC_ = OUT3 = CSP_ = CSN_ = 1.2V, all DAC codes set to the 1.2V code, T
Typical values are at T
Shutdown Supply Currents (V
Shutdown Supply Current (V
Shutdown Supply Current (IN3)
INTERNAL DACs, SLEW RATE, PHASE SHIFT
DC Output Voltage Accuracy
(Note 1)
OUT3 Offset
SMPS1 to SMPS2 Phase Shift
SMPS3 to SMPS1 and SMPS2
Phase Shift
Slew-Rate Accuracy
FBAC_ Input Bias Current
FBDC_ Input Bias Current
Switching Frequency Accuracy
SMPS1 AND SMPS2 CONTROLLERS
DC Load Regulation
Line Regulation Error
GNDS_ Input Range
GNDS_ Gain
GNDS_ Input Bias Current
PARAMETER
_______________________________________________________________________________________
IN
A
= +25°C.)
= 12V, V
DDIO
DD
)
)
CC
= V
SYMBOL
A
V
I
I
I
f
f
f
GNDS
FBAC
FBDC
V
OSC1,
OSC2,
GNDS_
GNDS_
OSC3
DD
OUT
_
_
= V
_
IN3
Measured at FBDC_
for the core SMPSs;
measured at OUT3
for the NB SMPS;
30% duty cycle, no
load, ILIM3 = V
V
12.5mV (Note 3)
SMPS2 starts after SMPS1
SMPS3 starts after SMPS1 or SMPS2
During
transition R
Startup
CSP_ = CSN_, T
T
R
nominal, f
R
nominal, f
432k
f
Either SMPS, PWM mode, droop disabled;
zero to full load
Either SMPS, 4V < V
Separate mode
Separate: V
-200mV V
T
AMD 2-/3-Output Mobile Serial
OSC3
A
A
OUT3
OSC
OSC
+200mV; combined: V
= SHDN = PGD_IN = 5V, V
= +25°C
= +25°C
= 143k
= 71.4k
= 199kHz nominal)
= GND, T
= GND, T
= GND, T
= V
(f
OSC1
DAC3
OSC3
OSC3
GNDS_
R
SR = 25mV/µs to 2.5mV/µs
OUT
TIME
TIME
= f
CONDITIONS
_/ V
CC
+
(f
= 600kHz nominal)
= 1.2MHz nominal) to
A
A
A
A
(f
OSC1
OSC2
= 143k , SR = 6.25mV/µs
OSC1
= +25°C
= +25°C
= +25°C
= 35.7k
,
= +25°C
+200mV
GNDS
IN
< 26V
= f
= 99kHz nominal,
= f
OUT
DAC codes from
0.8375V to 1.5500V
DAC codes from
0.5000V to 0.8250V
DAC codes from
12.5mV to 0.4875V
_
,
OSC2
OSC2
-200mV V
/ V
to 357k ,
GNDS_,
DDIO
= 300kHz
= 600kHz
= 1.8V, OPTION = GNDS_ = AGND = PGND,
GNDS
A
_
= 0°C to +85°C, unless otherwise noted.
VID Controller
-250
-200
MIN
0.95
-0.5
-10
-10
-15
-5
-3
-7
-9
-2
TYP
0.01
0.01
0.01
12.5
0.03
1.00
180
-0.1
50
25
1
+250
+200
MAX
+0.5
1.05
+10
+10
+15
+5
+3
+7
+9
+2
1
1
1
Degrees
UNITS
mV/µs
%/V
mV
mV
mV
V/V
µA
µA
µA
µA
nA
µA
%
%
%
%
%
%
3