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LP5952

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具有使能功能的 350mA、低输入电压 (0.9V)、线性稳压器

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数据表

LP5952

正在供货
数据表 立即订购

产品详情

Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 0.9 Vout (max) (V) 2 Vout (min) (V) 0.7 Fixed output options (V) 1, 1.2, 1.3, 1.5, 1.6, 1.8 Noise (µVrms) 100 Iq (typ) (mA) 0.061 Thermal resistance θJA (°C/W) 181 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 88, 128 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 0.9 Vout (max) (V) 2 Vout (min) (V) 0.7 Fixed output options (V) 1, 1.2, 1.3, 1.5, 1.6, 1.8 Noise (µVrms) 100 Iq (typ) (mA) 0.061 Thermal resistance θJA (°C/W) 181 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 88, 128 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 5 2.02 mm² 1.616 x 1.25 USON (NKH) 6 4 mm² 2 x 2
  • Input Voltage Range: 0.7 V to 4.5 V
  • 2.5 V ≤ VBATT ≤ 5.5 V
  • 0.5V ≤ VOUT ≤ 2 V
  • Ensured 350-mA Output Current
  • For ILOAD = 350 mA:
    • VBATT ≥ VOUT(NOM) + 1.5 V or 2.5 V
      (Whichever is Higher)
  • For ILOAD = 150 mA:
    • VBATT ≥ VOUT(NOM) + 1.3 V or 2.5 V
      (Whichever is Higher)
  • Excellent Load Transient Response: ±15 mV Typical
  • Excellent Line Transient Response: ±1 mV Typical
  • 50-µA Typical Quiescent Current from VBATT
  • 10-µA Typical Quiescent Current from VIN
  • 0.1-µA Typical Quiescent Current in Shutdown
  • Noise voltage = 100 µVRMS Typical
  • Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
  • Thermal-Overload and Short-Circuit Protection
  • Input Voltage Range: 0.7 V to 4.5 V
  • 2.5 V ≤ VBATT ≤ 5.5 V
  • 0.5V ≤ VOUT ≤ 2 V
  • Ensured 350-mA Output Current
  • For ILOAD = 350 mA:
    • VBATT ≥ VOUT(NOM) + 1.5 V or 2.5 V
      (Whichever is Higher)
  • For ILOAD = 150 mA:
    • VBATT ≥ VOUT(NOM) + 1.3 V or 2.5 V
      (Whichever is Higher)
  • Excellent Load Transient Response: ±15 mV Typical
  • Excellent Line Transient Response: ±1 mV Typical
  • 50-µA Typical Quiescent Current from VBATT
  • 10-µA Typical Quiescent Current from VIN
  • 0.1-µA Typical Quiescent Current in Shutdown
  • Noise voltage = 100 µVRMS Typical
  • Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
  • Thermal-Overload and Short-Circuit Protection

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to
5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to
5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.
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类型 标题 下载最新的英语版本 日期
* 数据表 LP5952 350-mA Dual-Rail Linear Regulator 数据表 (Rev. F) PDF | HTML 2015年 12月 17日
EVM 用户指南 AN-1531 LP5952 Evaluation Board (Rev. B) 2013年 4月 30日

设计和开发

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封装 引脚 下载
DSBGA (YZR) 5 查看选项
USON (NKH) 6 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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