LP2950-N

正在供貨

具有低 IQ 的 100mA、30V、低壓降穩壓器

產品詳情

Rating Catalog Vin (max) (V) 30 Vin (min) (V) 2.3 Iout (max) (A) 0.1 Output options Fixed Output Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (μVrms) 100 PSRR at 100 KHz (dB) 51 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 51 Load capacitance (min) (μF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 30 Vin (min) (V) 2.3 Iout (max) (A) 0.1 Output options Fixed Output Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (μVrms) 100 PSRR at 100 KHz (dB) 51 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 51 Load capacitance (min) (μF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
TO-252 (NDP) 3 65.2078 mm2 6.58 x 9.91 TO-92 (LP) 3 19.136 mm2 5.2 x 3.68
  • Input Voltage Range: 2.3 V to 30 V
  • 5-V, 3-V, and 3.3-V Output Voltage Versions Available
  • High Accuracy Output Voltage
  • Ensured 100-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Load and Line Regulation
  • Very Low Temperature Coefficient
  • Use as Regulator or Reference
  • Needs Minimum Capacitance for Stability
  • Current and Thermal Limiting
  • Stable With Low-ESR Output Capacitors (10 m? to 6 ?)
  • LP2951-N Versions Only:
    • Error Flag Warns of Output Dropout
    • Logic-Controlled Electronic Shutdown
    • Output Programmable From 1.24 V to 29 V
  • Input Voltage Range: 2.3 V to 30 V
  • 5-V, 3-V, and 3.3-V Output Voltage Versions Available
  • High Accuracy Output Voltage
  • Ensured 100-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Load and Line Regulation
  • Very Low Temperature Coefficient
  • Use as Regulator or Reference
  • Needs Minimum Capacitance for Stability
  • Current and Thermal Limiting
  • Stable With Low-ESR Output Capacitors (10 m? to 6 ?)
  • LP2951-N Versions Only:
    • Error Flag Warns of Output Dropout
    • Logic-Controlled Electronic Shutdown
    • Output Programmable From 1.24 V to 29 V

The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 µA typical) and very low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the device increases only slightly in dropout, prolonging battery life.

Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors.

The LP2950-N is available in the surface-mount TO-252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8-pin LP2951-N is available in plastic, ceramic dual-in-line, WSON, or metal can packages and offers additional system functions.

The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 µA typical) and very low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the device increases only slightly in dropout, prolonging battery life.

Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors.

The LP2950-N is available in the surface-mount TO-252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8-pin LP2951-N is available in plastic, ceramic dual-in-line, WSON, or metal can packages and offers additional system functions.
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類型 標題 下載最新的英語版本 日期
* 數據表 LP295x-N Series of Adjustable Micropower Voltage Regulators 數據表 (Rev. Q) PDF | HTML 2017年 12月 8日
應用手冊 A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
應用手冊 AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 2013年 4月 23日
應用手冊 TO-92 Packing Options / Ordering Instructions (Rev. A) 2010年 6月 23日

設計和開發

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評估板

MLTLDO2EVM-037 — 用于 DCY、DDA 和 KVU 封裝的通用 LDO 線性穩壓器評估模塊

借助采用多種封裝選項的 MLTLDO2EVM-037 低壓降 (LDO) 評估模塊 (EVM)，設計工程師能評估可能用于其自身電路應用的線性穩壓器采用多種常見封裝時的運行情況和性能。這種 EVM 配置包含一個 DDA、3 引腳和 5 引腳 KVU 以及 DCY 封裝，便于工程師焊接和評估部件。

用戶指南: PDF
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封裝 引腳 CAD 符號、封裝和 3D 模型
TO-252 (NDP) 3 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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