Datasheet > LD2985AXX_09

LD2985AXX_09

更新时间： 2024-09-14 11:37:47

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
21页	341K
描述
Very low drop and low noise voltage regulator low ESR capacitors compatible, with inhibit function

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中文翻译

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数据手册

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LD2985AXX_09 数据手册

LD2985Axx

LD2985Bxx

Very low drop and low noise voltage regulator low ESR

capacitors compatible, with inhibit function

Features

■ Very low dropout voltage (280 mV at 150 mA

and 7 mV at 1 mA load)

■ Very low quiescent current (2 mA typ. at 150

mA load and 80 µA at no load)

■ Output current up to 150 mA

■ Logic controlled electronic shutdown

■ Output voltage of 1.8, 2.5, 2.7, 2.8, 3, 3.3, 5 V

■ Internal current and thermal limit

SOT23-5L

means that when the device is used as local

regulator, it is possible to put a part of the board in

standby, decreasing the total power consumption.

■ Available in 1.5 % tolerance (at 25 °C, A

version)

■ Low output noise voltage 30 mVrms

■ Smallest package SOT23-5L

An external capacitor, C

= 10 nF, connected

BYP

between bypass pin and GND reduce the noise

to 30 µVrms.

■ Temperature range: - 40°C to 125 °C

Typical application are in cellular phone, palmtop

laptop computer, personal digital assistant (PDA),

personal stereo, camcorder and camera.

Description

The LD2985A/Bxx is a 150 mA fixed output

voltage regulator. The ultra low drop voltage and

the low quiescent current make them particularly

suitable for low noise, low power applications, and

in battery powered systems. In sleep mode

quiescent current is less than 1 µA when INHIBIT

pin is pulled low. Shutdown logic control function

is available on pin 3 (TTL compatible). This

Table 1.

Device summary

Part numbers

A version

B version

Output voltages

LD2985AXX18

LD2985AXX25

LD2985AXX27

LD2985AXX28

LD2985AXX30

LD2985AXX33

LD2985AXX50

LD2985BXX18

LD2985BXX25

LD2985BXX27

LD2985BXX28

LD2985BXX30

LD2985BXX33

LD2985BXX50

1.8 V

2.5 V

2.7 V

2.8 V

3.0 V

3.3 V

5.0 V

January 2009

Rev 11

1/21

www.st.com

12 3 4 5 6 7...21

中文翻译

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与LD2985AXX_09相关器件

型号	品牌	获取价格	描述	数据表
LD2985AXX15	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX18	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX25	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX27	STMICROELECTRONICS	获取价格	Very low drop and low noise voltage regulator low ESR capacitors compatible, with inhibit
LD2985AXX28	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX285	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX30	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX31	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX32	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2985AXX33	STMICROELECTRONICS	获取价格	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION