MAX17000_11 datasheet(3/32 Pages) MAXIM

Part #	MAX17000

Description	Complete DDR2 and DDR3 Memory Power-Management Solution

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Manufacturer	MAXIM [Maxim Integrated Products]

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Complete DDR2 and DDR3 Memory

Power-Management Solution

_______________________________________________________________________________________

3

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Off-Time

tOFF(MIN)

(Note 2)

250

350

ns

Quiescent Supply Current (VDD)

IDD

FB forced above 1.0V,

STDBY = AGND or

VCC, TA = +25°C

0.01

1.00

µA

FB forced above 1.0V (SMPS, VTT, and

VTTR blocks);

STDBY = VCC

2

4

mA

Quiescent Supply Current (VCC)

ICC

FB forced above 1.0V (ultra-skip and VTTR

blocks);

STDBY = AGND

275

475

µA

Shutdown Supply Current

(VDD + VCC)

ICC + IDD

SHDN = AGND, TA = +25°C

0.01

5

µA

TON Pin Shutdown Current

ITON

SHDN = AGND, VIN = 26V, VDD = 0 or 5V,

TA = +25°C

0.01

1.00

µA

LINEAR REGULATOR (VTT)

VTTI Input Voltage Range

VTTI

1.0

2.8

V

VTTI Supply Current

IVTTI

VVTTI = 2.5V, VREFIN = 1.4V

10

50

µA

VTTI Shutdown Current

SHDN = AGND, TA = +25°C

10

µA

REFIN Input Bias Current

VVTTI = 2.5V, VREFIN = 1.4V

-50

+50

nA

REFIN Range

VREFIN

0.5

1.5

V

REFIN Disable Threshold

VCC -

0.3

V

High-side on-resistance

(source, IVTT = 0.1A)

0.12

0.25

VTT Internal MOSFET

Low-side on-resistance (sink, IVTT = 0.1A)

0.18

0.36

VREFIN = 1V,

IVTT = +50µA

-5

+5

VTT Output-Accuracy

Source Load

(VREFIN - 5mV) or

(VCSL/2 - 5mV) to

VTTS, VTT = VTTS

VREFIN = 0.5V to 1.5V,

IVTT = +300mA

-5

mV

VREFIN = 1V,

IVTT = -50µA

-5

+5

VTT Output-Accuracy

Sink Load

(VREFIN + 5mV) or

(VCSL/2 + 5mV) to

VTTS, VTT = VTTS

VREFIN = 0.5V to 1.5V,

IVTT = -300mA

+5

mV

VTT Load Regulation

-50µA to -1A

IVTT

+50µA to +1A

13

17

mV/A

VTT Line Regulation

1.0V

VTTI

2.8V, IVTT = ±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 = VCC

16

VTTS Input Current

TA = +25°C

0.1

1.0

µA

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 12V, VCC = VDD = VSHDN = VREFIN = 5V, VCSL = 1.8V, STDBY = SKIP = AGND, TA = 0°C to +85°C, unless otherwise noted.

Typical values are at TA = +25°C.) (Note 1)

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