MAX17000A 查看數據表（PDF） - Maxim Integrated

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MAX17000A

Complete DDR2 and DDR3 Memory Power-Management Solution

Maxim Integrated 

MAX17000A

Complete DDR2 and DDR3 Memory

Power-Management Solution

ELECTRICAL CHARACTERISTICS

(VIN = 12V, VCC = VDD = VSHDN = VREFIN = 5V, VCSL = 1.8V, STDBY = SKIP = AGND, TA = -40°C to +85°C, unless otherwise noted.)

(Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

MAX UNITS

PWM CONTROLLER

Input Voltage Range

Output-Voltage Accuracy

On-Time Accuracy (Note 2)

Minimum Off-Time

VIN

VCC, VDD

VCSL

tON

tOFF(MIN)

VIN = 4.5V to 26V,

SKIP = VCC

VIN = 12V,

VCSL = 1.2V

(Note 2)

FB = AGND

FB = VCC

FB = Adj

RTON = 96.75k

(600kHz), 167ns

nominal

RTON = 200k

(300kHz), 333ns

nominal

RTON = 303.25k

(200kHz), 500ns

nominal

3

4.5

1.485

1.782

0.990

-15

-10

-15

26

V

5.5

1.520

1.820

V

1.020

+15

+10

%

+15

350

ns

Quiescent Supply Current (VCC)

FB forced above 1.0V (PWM, VTT, and

VTTR blocks); STDBY = VCC

ICC

FB forced above 1.0V (PWM and VTTR

blocks); STDBY = AGND

4

mA

1500

μA

LINEAR REGULATOR (VTT)

VTTI Input Voltage Range

VVTTI

1.0

VTTI Supply Current

IVTTI VTTI = 2.8V, REFIN = 1.4V, no load

REFIN Range

VREFIN

0.5

2.8

V

50

μA

1.5

V

REFIN Disable Threshold

VCC -

0.3

V

VTT Internal MOSFET

VTT Load Regulation

High-side on-resistance (source, IVTT = 0.1A)

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

-50μA to -1A
IVTT
+50μA to +1A

0.25

0.36

17

mV/A

6

Maxim Integrated

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