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参数

Output options Fixed Output, Dual Output Iout (Max) (A) 0.3 Vin (Max) (V) 6 Vin (Min) (V) 2.5 Vout (Max) (V) 2.85 Vout (Min) (V) 2.5 Fixed output options (V) 1.8, 2.5, 2.8, 2.85, 3 Noise (uVrms) 40 Iq (Typ) (mA) 0.115 Thermal resistance θJA (°C/W) 220 Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 2 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 35 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) 8 3 mm² 1.6 x 1.6 open-in-new 查找其它 线性稳压器(LDO)

特性

  • Miniature 8-I/O DSBGA Package
  • Stable With 1µF Ceramic and High Quality Tantalum Output Capacitors
  • Fast Turn-on
  • Two Independent Regulators
  • Logic Controlled Enable
  • Over Current and Thermal Protection
open-in-new 查找其它 线性稳压器(LDO)

描述

The LP3986 is a 150 mA dual low dropout regulator designed for portable and wireless applications with demanding performance and board space requirements.

The LP3986 is stable with a small 1 µF ±30% ceramic output capacitor requiring smallest possible board space.

The LP3986's performance is optimized for battery powered systems to deliver ultra low noise, extremely low dropout voltage and low quiescent current independent of load current. Regulator ground current increases very slightly in dropout, further prolonging the battery life. Optional external bypass capacitor reduces the output noise further without slowing down the load transient response. Fast start-up time is achieved by utilizing a speed-up circuit that actively pre-charges the bypass capacitor. Power supply rejection is better than 60 dB at low frequencies and 55 dB at 10 kHz. High power supply rejection is maintained at low input voltage levels common to battery operated circuits.

The LP3986 is available in a DSBGA package. Performance is specified for a −40°C to +125°C temperature range. For single LDO applications, please refer to the LP3985 datasheet.

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 LP3986 Dual Micropwr 150mA Ultra Low-Dropout CMOS VRegs in micro SMD Pkg 数据表 2013年 2月 19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
用户指南 AN-1228 LP3986 DSBGA Evaluation Board Instruction 2013年 4月 30日

设计与开发

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CAD/CAE 符号

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DSBGA (YZR) 8 了解详情

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