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线性和低压降 (LDO) 稳压器

LP3990

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具有使能功能和低输出电压的 150mA、低 IQ、低压降稳压器

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LP3990

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产品详情

Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 0.8 Fixed output options (V) 0.8, 1.2, 1.35, 1.5, 1.8, 2.5, 2.8, 3.3 Rating Catalog Noise (µVrms) 150 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.043 Thermal resistance θJA (°C/W) 54 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 0.8 Fixed output options (V) 0.8, 1.2, 1.35, 1.5, 1.8, 2.5, 2.8, 3.3 Rating Catalog Noise (µVrms) 150 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.043 Thermal resistance θJA (°C/W) 54 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 4 1.5625 mm² 1.25 x 1.25 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 WSON (NGG) 6 9 mm² 3 x 3
  • 1% Voltage Accuracy at Room Temperature
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • No Noise Bypass Capacitor Required
  • Thermal-Overload and Short-Circuit
    Protection
  • Input Voltage Range, 2 V to 6 V
  • Output Voltage Range, 0.8 V to 3.3 V
  • Output Current, 150 mA
  • Output Stable - Capacitors, 1 µF
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled), 43 µA
  • Low Output Noise, 150 µVRMS
  • PSRR, 55 dB at 1 kHz
  • Fast Start-Up, 105 µs
  • 1% Voltage Accuracy at Room Temperature
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • No Noise Bypass Capacitor Required
  • Thermal-Overload and Short-Circuit
    Protection
  • Input Voltage Range, 2 V to 6 V
  • Output Voltage Range, 0.8 V to 3.3 V
  • Output Current, 150 mA
  • Output Stable - Capacitors, 1 µF
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled), 43 µA
  • Low Output Noise, 150 µVRMS
  • PSRR, 55 dB at 1 kHz
  • Fast Start-Up, 105 µs

The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to 125°C junction temperature range.

For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact the Texas Instruments sales office.

The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to 125°C junction temperature range.

For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact the Texas Instruments sales office.
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类型 标题 下载最新的英语版本 日期
* 数据表 LP3990 150-mA Linear Voltage Regulator for Digital Applications 数据表 (Rev. J) PDF | HTML 2014年 9月 26日

设计和开发

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仿真模型

LP3990_0P8 PSpice Transient Model

SNVMAX8.ZIP (67 KB) - PSpice Model
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仿真模型

LP3990_0P8 Unencrypted PSpice Transient Model

SNVMAX7.ZIP (2 KB) - PSpice Model
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仿真模型

LP3990_1P2 PSpice Transient Model

SNVMAX3.ZIP (69 KB) - PSpice Model
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仿真模型

LP3990_1P2 Unencrypted PSpice Transient Model

SNVMAX4.ZIP (2 KB) - PSpice Model
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仿真模型

LP3990_1P35 PSpice Transient Model

SNVMAX6.ZIP (69 KB) - PSpice Model
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仿真模型

LP3990_1P35 Unencrypted PSpice Transient Model

SNVMAX5.ZIP (2 KB) - PSpice Model
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仿真模型

LP3990_1P5 PSpice Transient Model

SNVMAY3.ZIP (70 KB) - PSpice Model
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仿真模型

LP3990_1P5 Unencrypted PSpice Transient Model

SNVMAY4.ZIP (2 KB) - PSpice Model
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仿真模型

LP3990_1P8 PSpice Transient Model

SNVMAY2.ZIP (69 KB) - PSpice Model
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仿真模型

LP3990_1P8 Unencrypted PSpice Transient Model

SNVMAY1.ZIP (2 KB) - PSpice Model
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仿真模型

LP3990_2P5 PSpice Transient Model

SNVMAY0.ZIP (70 KB) - PSpice Model
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仿真模型

LP3990_2P5 Unencrypted PSpice Transient Model

SNVMAX9.ZIP (2 KB) - PSpice Model
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仿真模型

LP3990_2P8 PSpice Transient Model

SNVMAY5.ZIP (71 KB) - PSpice Model
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仿真模型

LP3990_2P8 Unencrypted PSpice Transient Model

SNVMAY6.ZIP (2 KB) - PSpice Model
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参考设计

TIDA-00574 — Xilinx Zynq 7000 系列 5W 小型高效低噪声电源解决方案参考设计

TIDA-00574 展示了具备小型解决方案尺寸以及高电流密度与低噪声电源的解决方案。它支持内部定序和高输出电压精度。
设计指南: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
DSBGA (YZR) 4 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
WSON (NGG) 6 Ultra Librarian
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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