Datasheet > FAN1117AD285X

FAN1117AD285X

更新时间： 2024-11-18 23:51:43

品牌	Logo	应用领域
其他 - ETC		调节器模拟IC 输出元件
页数	文件大小	规格书
9页	70K
描述
Analog IC

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数据手册

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FAN1117AD285X 数据手册

www.fairchildsemi.com

FAN1117A

1A Adjustable/Fixed Low Dropout Linear Regulator

Features

Description

• Low dropout voltage

• Load regulation: 0.05% typical

• Trimmed current limit

The FAN1117A and FAN1117A-1.8, -2.5, -2.85, -3.3 and -5

are low dropout three-terminal regulators with 1A output

current capability. These devices have been optimized for low

voltage where transient response and minimum input voltage

are critical. The 2.85V version is designed speciﬁcally to be

used in Active Terminators for SCSI bus.

• On-chip thermal limiting

• Standard SOT-223, TO-220, and TO-252 packages

• Three-terminal adjustable or ﬁxed 1.8V, 2.5V, 2.85V,

3.3V, 5V

Current limit is trimmed to ensure speciﬁed output current

and controlled short-circuit current. On-chip thermal limiting

provides protection against any combination of overload and

ambient temperatures that would create excessive junction

temperatures.

Applications

• Active SCSI terminators

• High efﬁciency linear regulators

• Post regulators for switching supplies

• Battery chargers

• 12V to 5V linear regulators

• Motherboard clock supplies

Unlike PNP type regulators where up to 10% of the output

current is wasted as quiescent current, the quiescent current

of the FAN1117A ﬂows into the load, increasing efﬁciency.

The FAN1117A series regulators are available in the

industry-standard SOT-223, TO-220, and TO-252 (DPAK)

power packages.

Typical Applications

FAN1117A

V_IN= 12V

V_IN

V_OUT

9V at 1A

10µF

22µF

124Ω

ADJ

768Ω

V_OUT= V_REF(1+R2/R1) + I_ADJ• R2

FAN1117A-2.85

V_INV_OUT

V_IN= 12V

5V at 1A

10µF

22µF

GND

REV. 1.0.5 2/28/02

12 3 4 5 6 7...9

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