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参数

Output options Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 6 Vin (Min) (V) 2.5 Vout (Max) (V) 3 Vout (Min) (V) 1.9 Fixed output options (V) 1.5, 1.8, 1.9, 2.5, 2.8, 3 Noise (uVrms) 25 Iq (Typ) (mA) 0.085 Thermal resistance θJA (°C/W) 69 Approx. price (US$) 0.20 | 1ku Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 32 Dropout voltage (Vdo) (Typ) (mV) 60 Operating temperature range (C) -40 to 125 open-in-new 查找其它 线性稳压器(LDO)

封装|引脚|尺寸

DSBGA (YZR) 5 2 mm² 1.054 x 1.511 WSON (NGD) 6 10 mm² 2.92 x 3.29 open-in-new 查找其它 线性稳压器(LDO)

特性

  • Input Range: 2.5 V to 6 V
  • Accurate Output Voltage: ±75 mV / 2%
  • Typical Dropout with 150 mA Load: 60 mV
  • Virtually Zero Quiescent Current When Disabled
  • Low Output Voltage Noise
  • Stable With a 1-µF Output Capacitor
  • Output Current: 150 mA
  • Fast Turnon: 30 µs (Typical)
  • Fast Turnoff: 175 µs (Typical)
  • Stable With Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turnon
  • Active Disable for Fast Turnoff
  • Thermal-Overload and Short-Circuit Protection
  • −40 to +125°C Junction Temperature Range for
    Operation
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描述

The LP3995 linear regulator is designed to meet the requirements of portable battery-powered applications, providing an accurate output voltage with low noise and low quiescent current. Ideally suited for powering RF and analog devices, this device can also be used to meet more general circuit needs in which a fast turnoff is essential.

For battery-powered applications the low dropout and low ground current provided by the device allows the lifetime of the battery to be maximized. The Enable(/Disable) control function allows the system to further extend the battery lifetime by reducing the power consumption to virtually zero. This function also incorporates an active discharge circuit on the output for faster device shutdown. Where the fast turnoff is not required the LP3999 linear regulator is recommended. The LP3995 also features internal protection against short-circuit currents and overtemperature conditions.

The LP3995 is designed to be stable with small 1-µF ceramic capacitors. The small outline of the LP3995 DSBGA package with the required ceramic capacitors can realize a system application within minimal board area. Performance is specified for a −40°C to +125°C temperature range.

The LP3995 is available in fixed output voltages from 1.5 V to 3.3 V, in DSBGA or WSON packages. For other package options or output-voltage options, contact your local TI sales office.

open-in-new 查找其它 线性稳压器(LDO)
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 LP3995 Micropower 150-mA CMOS Voltage Regulator With Active Shutdown 数据表 2015年 9月 22日
应用手册 A Topical Index of TI LDO Application Notes 2019年 6月 27日
技术文章 LDO basics: capacitor vs. capacitance 2018年 8月 1日
技术文章 LDO Basics: Preventing reverse current 2018年 7月 25日
技术文章 LDO basics: introduction to quiescent current 2018年 6月 20日
技术文章 LDO basics: noise – part 1 2017年 6月 14日
应用手册 Understanding Portable Applications Requirements to Improve System Performance 2007年 3月 22日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

CAD/CAE 符号

封装 引脚 下载
DSBGA (YZR) 5 视图选项
WSON (NGD) 6 视图选项

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