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參數(shù)資料
| 型號： | ML6553 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Bus Termination Regulator |
| 中文描述： | 總線終端穩(wěn)壓器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 115K |
| 代理商： | ML6553 |
www.fairchildsemi.com
REV. 1.0.2 3/21/01
Features
Can source and sink up to 1A
Generates termination voltages for DDR SDRAM,
SSTL_2 SDRAM, SGRAM, or equivalent memories
Generates termination voltages for active termination
schemes for GTL+, DDR, Rambus
PECL and other high speed logic
V
L
regulated to within 3% at 800mA
Minimum external components. Requires no feedback
compensation
Fixed frequency operation for easier system integration
Lower power consumption than passive, resistor divider
termination, reducing heat by as much as 50%
Separate voltages for V
CCQ
, VME, LV-TTL,
and PV
DD
General Description
The ML6553 switching regulator is designed to convert
voltage supplies ranging from 2.0V to 3.6V into a desired
output voltage or termination voltage for various applica-
tions. The ML6553 can be implemented to produce
regulated output voltages in two different modes. In the
default mode, the output is 50% of voltage applied to V
The switching regulator is capable of sourcing or sinking up
to 1A of current.
CCQ
.
The ML6553, used in conjunction with series termination
resistors, provides an excellent voltage source for active
termination schemes of high speed transmission lines as
those seen in high speed memory buses and distributed back-
plane designs. The voltage output of the regulator can be
used as a termination voltage for other bus interface
standards such as SSTL, DDR, Rambus
LV-CMOS, LV-TTL, P-ECL, and CMOS.
, GTL+, VME,
Block Diagram
VL
AGND
190k
BUFFER
3
VCCQ/2
7
AVCC
CLK
RAMP
VINTEG
PWM
COMPARATOR
4
PVDD
Q1
Q2
5
8
DGND
VL
6
+
–
–
+
–
+
VCCQ
1
OSCILLATOR/
RAMP GENERATOR
S
R
Q
Q
2
190k
ML6553
Bus Termination Regulator
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML65541 | High Speed Octal Buffer/Line Drivers(高速八通道緩沖收發(fā)器) |
| ML65L541 | High Speed Octal Buffer/Line Drivers(高速八通道緩沖收發(fā)器) |
| ML6554CU | 3A Bus Termination Regulator |
| ML6554IU | 3A Bus Termination Regulator |
| ML6554 | 3A Bus Termination Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML6553CS1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6553CS-1 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Bus Termination Regulator |
| ML6553CS1X | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6554 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:3A Bus Termination Regulator |
| ML65541 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:High Speed Octal Buffer/Line Drivers |
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