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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) 3.3 Vout (Min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.4, 2.5, 2.8, 3.3 Noise (uVrms) 10 Iq (Typ) (mA) 0.085 Thermal resistance θJA (°C/W) 255 Approx. price (US$) 0.28 | 1ku Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 25 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 open-in-new 查找其它 线性稳压器(LDO)

特性

  • 5 pin DSBGA Package
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turn-on
  • Thermal-overload and short-circuit protection
  • −40 to +125°C junction temperature range for operation

Key Specifications

  • 2.5V to 6.0V Input Range
  • Accurate Output Voltage; ±75mV / 2%
  • 60 mV Typical Dropout with 150 mA Load. Vout > 2.5V
  • Virtually Zero Quiescent Current when Disabled
  • 10 μVrms Output Noise Over 10Hz to 100kHz
  • Stable with a 1 μF Output Capacitor
  • Ensured 150 mA Output Current
  • Fast Turn-on Time; 140 μs (Typ.)

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描述

The LP3999 regulator is designed to meet the requirements of portable wireless battery-powered applications and will provide an accurate output voltage with low noise and low quiescent current. Ideally suited for powering RF/Analog devices this device will also be used to meet more general circuit requirements.

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 inclusion of an Enable(disable) control can be used by the system to further extend the battery lifetime by reducing the power consumption to virtually zero. Should the application require a device with an active disable function please refer to device LP3995.

The LP3999 also features internal protection against short-circuit currents and over-temperature conditions.

The LP3999 is designed to be stable with small 1.0 µF ceramic capacitors. The small outline of the LP3999 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 device is available in DSBGA package. For other package options contact your local TI sales office.

The device is available in fixed output voltages in the ranges of 1.5V to 3.3V. For availability, please 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 LP3999 Low Noise 150mA Voltage Regulator for RF/Analog Applications 数据表 2013年 5月 3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 AN-2146 Power Design for SDI and other Noise Sensitive Devices 2013年 4月 26日
应用手册 Understanding Portable Applications Requirements to Improve System Performance 2007年 3月 22日

设计与开发

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封装 引脚 下载
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