MAX17000A 데이터 시트보기 (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

Typical Operating Characteristics (continued)

(MAX17000A Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, SKIP = GND, TA = +25°C, unless otherwise noted.)

STARTUP WAVEFORM

(HEAVY LOAD)

MAX17000A toc09

SHUTDOWN WAVEFORM

(DISCHARGE MODE ENABLED)

MAX17000A toc10

SHDN

VDDQ

VTT

VTTR

PGOOD1

DL

VDDQ

VTTR

VTT

PGOOD2

PGOOD1

SHDN

ILX

ILX

DL

SHDN: 5V/div

VDDQ: 500mV/div

VTT: 500mV/div

VTTR: 500mV/div

200μs/div

PGOOD1: 2V/div

ILX: 5A/div

DL: 5V/div

RLOAD = 0.25Ω

SKIP = GND

DL: 5V/div

VDDQ: 2V/div

VTT: 1V/div

VTTR: 1V/div

400μs/div

PGOOD2: 5V/div

PGOOD1: 5V/div

SHDN: 10V/div

ILX: 2A/div

STDBY

VDDQ

VTT

TON

DL

STANDBY TRANSITION WAVEFORM

MAX17000A toc11

IVTT = 50mA

LX

ILX

STDBY: 5V/div

VDDQ: 1V/div

VTT: 1V/div

100μs/div

TON: 1V/div

DL: 5V/div

LX: 10V/div

ILX: 2A/div

STANDBY TRANSITION WAVEFORM

MAX17000A toc12

STDBY

VDDQ

VTT

TON

DL

LX

ILX

STDBY: 5V/div

VDDQ: 1V/div

VTT: 1V/div

TON: 1V/div

10μs/div

DL: 5V/div

LX: 10V/div

ILX: 2A/div

SMPS LOAD-TRANSIENT RESPONSE

(PWM MODE)

MAX17000A toc13

VDDQ

SMPS LOAD-TRANSIENT RESPONSE

(SKIP MODE)

MAX17000A toc14

VDDQ

LX

ILOAD

LX

ILOAD

ILX

VDDQ: 50mV/div

LX: 10V/div

20μs/div

ILOAD: 5A/div

ILX: 5A/div

ILX

VDDQ: 50mV/div

LX: 10V/div

20μs/div

ILOAD: 5A/div

ILX: 5A/div

Maxim Integrated

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