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线性和低压降 (LDO) 稳压器

LP38502-ADJ

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具有使能功能的 1.5A、可调节超低压降稳压器

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数据表

LP38502-ADJ

正在供货
数据表 立即订购

产品详情

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5 Vout (min) (V) 0.6 Noise (µVrms) 100 Iq (typ) (mA) 2 Thermal resistance θJA (°C/W) 33 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 25 Dropout voltage (Vdo) (typ) (mV) 220 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5 Vout (min) (V) 0.6 Noise (µVrms) 100 Iq (typ) (mA) 2 Thermal resistance θJA (°C/W) 33 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 25 Dropout voltage (Vdo) (typ) (mV) 220 Operating temperature range (°C) -40 to 125
TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24 TO-263 (NDQ) 5 142.3416 mm² 10.16 x 14.01 WSON (NGS) 8 7.5 mm² 3 x 2.5
  • Input Voltage: 2.7 V to 5.5 V
  • Adjustable Output Voltage: 0.6 V to 5 V
  • FlexCap: Stable with Ceramic, Tantalum, or
    Aluminum Capacitors
  • Stable with 10-µF Input and Output Capacitors
  • Low Ground-Pin Current
  • 25-nA Quiescent Current in Shutdown Mode
  • Ensured Output Current of 1.5 A
  • Ensured VADJ Accuracy of ±1.5% at 25°C (A
    Grade)
  • Ensured Accuracy of ±3.5% at 25°C (STD)
  • Overtemperature and Overcurrent Protection
  • ENABLE Pin (LP38502)
  • Input Voltage: 2.7 V to 5.5 V
  • Adjustable Output Voltage: 0.6 V to 5 V
  • FlexCap: Stable with Ceramic, Tantalum, or
    Aluminum Capacitors
  • Stable with 10-µF Input and Output Capacitors
  • Low Ground-Pin Current
  • 25-nA Quiescent Current in Shutdown Mode
  • Ensured Output Current of 1.5 A
  • Ensured VADJ Accuracy of ±1.5% at 25°C (A
    Grade)
  • Ensured Accuracy of ±3.5% at 25°C (STD)
  • Overtemperature and Overcurrent Protection
  • ENABLE Pin (LP38502)

TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

  • GND Pin Current: Typically 2 mA at 1.5-A load current.
  • Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
  • Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
  • Precision Output: grade versions available with 1.5% VADJ tolerance (25°C) and 3% over line, load, and temperature.

TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

  • GND Pin Current: Typically 2 mA at 1.5-A load current.
  • Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
  • Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
  • Precision Output: grade versions available with 1.5% VADJ tolerance (25°C) and 3% over line, load, and temperature.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LP3850x-ADJ, LP3850xA-ADJ 1.5-A Flexcap Low-Dropout Linear Regulator for 2.7-V to 5.5-V Inputs 数据表 (Rev. H) PDF | HTML 2015年 9月 22日
EVM 用户指南 AN-1782 LP38502TJ-ADJ Evaluation Board (Rev. A) 2013年 5月 24日
EVM 用户指南 AN-1758 LP38502SD-ADJ Evaluation Board (Rev. B) 2013年 4月 24日
EVM 用户指南 AN-1759 LP38502TS-ADJ Evaluation Board (Rev. B) 2013年 4月 24日
EVM 用户指南 AN-1829 LP38502ASD-ADJ Evaluation Board (Rev. A) 2013年 4月 24日
EVM 用户指南 AN-1831 LP38502ATJ-ADJ Evaluation Board (Rev. A) 2013年 4月 24日
应用手册 AN-2219 Precision Current Limiting with the LMP8646 and LP38501 (Rev. A) 2013年 4月 24日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

LP38502SD-ADJEV — 用于 2.7V 至 5.5V 输入的 1.5A FlexCap 低压降线性稳压器的评估板 (LLP8)

This Evaluation Board highlights the LP38502SD-ADJ, a 1.5A Low-Dropout (LDO) linear regulator in the LLP-8 package which has an adjustable output voltage (set by external resistors).

Changing the Output Voltage

The resistors R1 and R2 set the output voltage. The equation to determine output voltage (...)

用户指南: PDF
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仿真模型

LP38502-ADJ PSpice Transient Model

SLVMAL9.ZIP (50 KB) - PSpice Model
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仿真模型

LP38502_ADJ Unencrypted PSpice Transient Model

SNVMAB3.ZIP (1 KB) - PSpice Model
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封装 引脚 下载
TO-263 (KTT) 5 查看选项
TO-263 (NDQ) 5 查看选项
WSON (NGS) 8 查看选项
应遵守 TI 评估类商品的标准条款与条件。

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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