LD1117XX

更新时间： 2024-10-01 11:50:43

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
42页	1056K
描述
Adjustable and fixed low drop positive voltage regulator

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数据手册

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LD1117XX 数据手册

LD1117xx

Adjustable and fixed low drop positive voltage regulator

Features

■ Low dropout voltage (1 V typ.)

■ 2.85 V device performances are suitable for

SCSI-2 active termination

■ Output current up to 800 mA

DPAK

SO-8

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

TO-220

3.0 V, 3.3 V, 5.0 V

■ Adjustable version availability (V = 1.25 V)

ref

■ Internal current and thermal limit

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

SOT-223

temperature range

■ Supply voltage rejection: 75 dB (typ.)

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 10 µF 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

Description

The LD1117 is a low drop voltage regulator able

to provide up to 800 mA of output current,

available even in adjustable version (V

V). Concerning fixed versions, are offered the

following output voltages: 1.2 V, 1.8 V, 2.5 V, 2.85

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

for SCSI-2 lines active termination. The device is

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

= 1.25

REF

maintaining the better performances in terms of

drop and tolerance.

The SOT-223 and DPAK surface mount packages

optimize the thermal characteristics even offering

a relevant space saving effect.

Table 1.

Device summary

Part numbers

LD1117XX12

LD1117XX12C

LD1117XX18

LD1117XX18C

LD1117XX25

LD1117XX25C

LD1117XX30

LD1117XX33

LD1117XX33C

LD1117XX50

LD1117XX50C

LD1117XX

LD1117XXC

March 2010

Doc ID 2572 Rev 28

1/42

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与LD1117XX相关器件

型号	品牌	获取价格	描述	数据表
LD1117XX12	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX18	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX18C	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX25	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX25C	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX28	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX30	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX30C	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX33	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117XX33C	ETC	获取价格	LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS