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FAN1655MTFX

更新时间： 2024-02-04 00:32:37

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		稳压器双倍数据速率
页数	文件大小	规格书
9页	513K
描述
3A DDR Bus Termination Regulator

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中文翻译

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数据手册

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FAN1655MTFX 数据手册

www.fairchildsemi.com

FAN1655

3A DDR Bus Termination Regulator

Features

Description

• Sinks and sources 2.1A continuous, 3A peak

• 0 to +125°C operating temperature range

• 5mA Buffered VREFOUT = VDDQ/2

• Load regulation: VTT = VREFOUT ꢀ0mV

• On-chip thermal limiting

The FAN1655 is a low-cost bi-directional LDO speciﬁcally

designed for terminating DDR memory bus. It can both sink

and source up to 2.1A continuous, 3A peak, providing

enough current for most DDR applications. Load regulation

meets the JEDEC spec, VTT = VREFOUT ꢀ0mV.

• Low Cost SO-1ꢀ, Power-Enhanced eTSSOP or

8-pin 5x6mm MLP packages

• Low-Current Shutdown Mode

The FAN1655 includes a buffered reference voltage capable

of supplying up to 5mA current. On-chip thermal limiting

provides protection against a combination of power overload

and ambient temperature that would create an excessive

junction temperature. A shutdown input puts the FAN1655

into a low power mode.

• Output Short Circuit Protection

Applications

• DDR Terminator VTT supply

The FAN1655 regulator is available in a power-enhanced

eTSSOP™-16, standard SOIC-1ꢀ, and an 8-Lead MLP

package.

Block Diagram

VDDQ

200k

VDD

SHDN

VREFOUT

VREFIN

VTTFORCE

200k

VTTSENSE

FAN1655

VSS VSS

VSS

VSSQ

REV. 1.1.4 3/24/04

12 3 4 5 6 7...9

中文翻译

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