LD1117DTC-R

更新时间： 2024-01-08 12:39:57

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		调节器
页数	文件大小	规格书
38页	474K
描述
LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

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LD1117DTC-R 数据手册

LD1117 series

Low drop fixed and adjustable positive voltage regulators

Feature summary

■ Low dropout voltage (1V TYP.)

■ 2.85V Device performances are suitable for

SCSI-2 active termination

■ Output current up to 800 mA

DPAK

SO-8

■ Fixed output voltage of: 1.2V, 1.8V, 2.5V,

TO-220

2.85V, 3.0V, 3.3V, 5.0V

■ Adjustable version availability (V_rel=1.25V)

■ Internal current and thermal limit

■ Available in 1% (at 25°C) and 2% in full

SOT-223

temperature range

■ Supply voltage rejection: 75dB (typ.)

The SOT-223 and DPAK surface mount packages

optimize the thermal characteristics even offering

a relevant space saving effect. High efficiency is

assured by NPN pass transistor. In fact in this

case, unlike than PNP one, the Quiescent Current

flows mostly into the load. Only a very common

10µF minimum capacitor is needed for stability.

On chip trimming allows the regulator to reach a

very tight output voltage tolerance, within 1% at

25°C. The ADJUSTABLE LD1117 is pin to pin

compatible with the other standard. Adjustable

voltage regulators maintaining the better

performances in terms of Drop and Tolerance.

Description

The LD1117 is a LOW DROP Voltage Regulator

able to provide up to 800mA of Output Current,

available even in adjustable version (Vref=1.25V).

Concerning fixed versions, are offered the

following Output Voltages: 1.2V,1.8V,2.5V,2.85V,

3.0V 3.3V and 5.0V. The 2.85V type is ideal for

SCSI-2 lines active termination. The device is

supplied in: SOT-223, DPAK, SO-8 and TO-220.

Block diagram

December 2006

Rev. 20

1/38

www.st.com

12 3 4 5 6 7...38

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LD1117DTC-R 替代型号

型号	品牌	替代类型	描述	数据表
LD1117DTTR	STMICROELECTRONICS	完全替代	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117DT	STMICROELECTRONICS	类似代替	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
NCV1117DTARKG	ONSEMI	功能相似	1.0 A Low−Dropout Positive Fixed and Adjustable Voltage Regulators

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