FAN1581T_NL

更新时间： 2024-11-19 13:07:43

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		稳压器
页数	文件大小	规格书
13页	88K
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FAN1581T_NL 数据手册

www.fairchildsemi.com

FAN1 5 8 1

5 A Ad ju s t a b le /Fix e d Ult ra Lo w Dro p o u t

Lin e a r Re g u la t o r

Features

Description

• Ultra Low dropout voltage, 0.4V typical at 5A

• 1.2V Versions available for GTL termination

• Remote sense operation

• Fast transient response

• Load regulation: 0.05% typical

• 0.5% typical initial accuracy

The FAN1581, FAN1581-1.2, FAN1581-1.5, and FAN1581-

2.5 are ultra-low dropout regulators with 5A output current

capability. These devices have been optimized for low volt-

age applications including V_TTbus termination, where tran-

sient response and minimum input voltage are critical. The

FAN1581 is ideal for low voltage microprocessor applica-

tions requiring a regulated output from 1.3V to 5.7V with a

power input supply of 1.75V to 6.5V. The FAN1581-1.5

offers ﬁxed 1.5V with 5A current capabilities for GTL+ bus

V_TTtermination. Additionally, the FAN1581-1.2 offers ﬁxed

1.2V output for CPU Bus termination. The FAN1581-2.5

offers ﬁxed 2.5V with 5A current capability for logic IC

operation and processors while minimizing the overall power

dissipation.

• On-chip thermal limiting

• TO-263, TO-252 and TO-220 packages

Applications

• Support of GTL+ bus supply

• Low voltage logic supply

• Embedded Processor supplies

• Split plane regulator

• 2.5V, and 1.8V Logic Families

• DDR Termination Supply

Current limit ensures controlled short-circuit current. On-chip

thermal limiting provides protection against any combination

of overload and ambient temperature that would create exces-

sive junction temperatures.

The FAN1581 series regulators are available in the 5-pin

TO-263, TO-252 and TO-220 packages.

Typical Applications

V_IN= 3.3V

10µF

V_IN

V_SENSE

FAN1581–2.5

V_OUT

2.5V at 5A

V_IN= 3.3V

V_CNTL= 5V

1µF

V_CNTL

V_IN

V_SENSE

22µF

GND

10µF

FAN1581

V_OUT

2.1V at 5A

V_CNTL= 5V

1µF

V_CNTL

22µF

Adj

124Ω

V_IN= 5.75V

10µF

V_IN

V_SENSE

86.6Ω

FAN1581

V_OUT

5V at 5A

V_CNTL= 12V

1µF

V_CNTL

22µF

Adj

124Ω

374Ω

V_IN= 3.3V

10µF

V_IN

V_SENSE

FAN1581-1.2

V_OUT

1.2V at 5A

V_CNTL= 5V

1µF

V_CNTL

Gnd

22µF

Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.

REV. 1.2.0 11/6/03

12 3 4 5 6 7...13

中文翻译

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与FAN1581T_NL相关器件

型号	品牌	获取价格	描述	数据表
FAN1581T-1.5	ETC	获取价格	Positive Fixed Voltage Regulator
FAN1581T-15	FAIRCHILD	获取价格	Regulator, 1 Output, BIPolar,
FAN1581T-2.5	ETC	获取价格	Positive Fixed Voltage Regulator
FAN1581T-25	FAIRCHILD	获取价格	Regulator, 1 Output, BIPolar,
FAN1582	FAIRCHILD	获取价格	3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
FAN1582_0311	FAIRCHILD	获取价格	3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
FAN1582D	FAIRCHILD	获取价格	3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
FAN1582D-1.5	FAIRCHILD	获取价格	3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
FAN1582D15X	FAIRCHILD	获取价格	3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
FAN1582D-2.5	FAIRCHILD	获取价格	3A Adjustable/Fixed Ultra Low Dropout Linear Regulator

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