Electrical characteristics (continued) – Rainbow Electronics MAX17000 User Manual
Page 3
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)