MAX17000
Complete DDR2 and DDR3 Memory
Power-Management Solution
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Minimum Off-Time t
OFF(MIN)
(Note 2) 250 350 ns
Quiescent Supply Current (V
DD
) I
DD
FB forced above 1.0V, STDBY = AGND or
V
CC,
T
A
= +25°C
0.01 1.00 μA
FB forced above 1.0V (SMPS, VTT, and
VTTR blocks); STDBY = V
CC
2 4 mA
Quiescent Supply Current (V
CC
) I
CC
FB forced above 1.0V (ultra-skip and VTTR
blocks); STDBY = AGND
275 475 μA
Shutdown Supply Current
(V
DD
+ V
CC
)
I
CC +
I
DD
SHDN = AGND, T
A
= +25°C 0.01 5 μA
TON Pin Shutdown Current I
TON
SHDN = AGND, V
IN
= 26V, V
DD
= 0 or 5V,
T
A
= +25°C
0.01 1.00 μA
LINEAR REGULATOR (VTT)
VTTI Input Voltage Range V
TTI
1.0 2.8 V
VTTI Supply Current I
VTTI
VTTI = 2.8V, REFIN = 1.4V, no load 10 50 μA
VTTI Shutdown Current SHDN = AGND, T
A
= +25°C 10 μA
REFIN Input Bias Current VTTI = 2.8V, REFIN = 1.4V, T
A
= +25°C -50 +50 nA
REFIN Range V
REFIN
0.5 1.5 V
REFIN Disable Threshold
V
CC
-
0.3
V
High-side on-resistance
(source, I
VTT
= 0.1A)
0.12 0.25
VTT Internal MOSFET
Low-side on-resistance (sink, I
VTT
= 0.1A) 0.18 0.36
V
REFIN
= 1V,
I
VTT
= +50μA
-5 +5
VTT Output-Accuracy
Source Load
(V
REFIN
- 5mV) or
(V
CSL
/2 - 5mV) to
VTTS, VTT = VTTS
V
REFIN
= 0.5V to 1.5V,
I
VTT
= +300mA
-5
mV
V
REFIN
= 1V,
I
VTT
= -50μA
-5 +5
VTT Output-Accuracy
Sink Load
(V
REFIN
+ 5mV) or
(V
CSL
/2 + 5mV) to
VTTS, VTT = VTTS
V
REFIN
= 0.5V to 1.5V,
I
VTT
= -300mA
+5
mV
VTT Load Regulation -50μA to -1A I
VTT
+50μA to +1A 13 17 mV/A
VTT Line Regulation 1.0V V
TTI
2.8V, I
VTT
= ±100mA 1 mV
Source 2 4
VTT Current Limit
Sink -4 -2
A
VTT Current-Limit Soft-Start Time With respect to internal VTT_EN signal 160 μs
VTT Discharge MOSFET OVP = V
CC
16
VTTS Input Current T
A
= +25°C 0.1 1.0 μA
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 12V, V
CC
= V
DD
= V
SHDN
= V
REFIN
= 5V, V
CSL
= 1.8V, STDBY = SKIP = AGND, T
A
= 0°C to +85°C, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 1)
(21 Seiten)
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