首頁 電源管理 線性與低壓差 (LDO) 穩壓器
首頁
電源管理
線性與低壓差 (LDO) 穩壓器

LP2951-Q1

現行

具有 Power Good 和啟用功能的車用 100mA 30V 低壓差電壓穩壓器

立即訂購
產品規格表

LP2951-Q1

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 430 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 54 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 430 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 54 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 WSON (DRG) 8 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, TA
  • Wide input range: Up to 35V
  • Rated output current: 100mA
  • Low dropout: 380mV (typ) at 100mA
  • Low quiescent current: 75µA (typ)
  • Tight line regulation: 0.03% (typ)
  • Tight load regulation: 0.04% (typ)
  • High VO accuracy:
    • 1% at 25°C
    • 2% over temperature
  • Can be used as a regulator or reference
  • Stable with low ESR (>12mΩ) capacitors
  • Current- and thermal-limiting features
  • 8-pin package:
    • Fixed voltages: 5V/ADJ and 3.3V/ADJ
    • Low-voltage error signal on falling output
    • Shutdown capability
    • Remote sense capability for optimal output regulation and accuracy
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, TA
  • Wide input range: Up to 35V
  • Rated output current: 100mA
  • Low dropout: 380mV (typ) at 100mA
  • Low quiescent current: 75µA (typ)
  • Tight line regulation: 0.03% (typ)
  • Tight load regulation: 0.04% (typ)
  • High VO accuracy:
    • 1% at 25°C
    • 2% over temperature
  • Can be used as a regulator or reference
  • Stable with low ESR (>12mΩ) capacitors
  • Current- and thermal-limiting features
  • 8-pin package:
    • Fixed voltages: 5V/ADJ and 3.3V/ADJ
    • Low-voltage error signal on falling output
    • Shutdown capability
    • Remote sense capability for optimal output regulation and accuracy

The LP2951-Q1 is a bipolar, low-dropout voltage regulator that can accommodate a wide input supply-voltage range of up to 35V. The 8-pin LP2951-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-Q1 outputs a fixed 5V and 3.3V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235V to 30V.

The LP2951-Q1 device is designed to minimize all error contributions to the output voltage. With a tight output tolerance (0.5% at 25°C), a very low output voltage temperature coefficient (20ppm typical), extremely good line and load regulation (0.3% and 0.4% typical), and remote sensing capability, the device can be used as either a low-power voltage reference or a 100mA regulator.

The LP2951-Q1 is a bipolar, low-dropout voltage regulator that can accommodate a wide input supply-voltage range of up to 35V. The 8-pin LP2951-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-Q1 outputs a fixed 5V and 3.3V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235V to 30V.

The LP2951-Q1 device is designed to minimize all error contributions to the output voltage. With a tight output tolerance (0.5% at 25°C), a very low output voltage temperature coefficient (20ppm typical), extremely good line and load regulation (0.3% and 0.4% typical), and remote sensing capability, the device can be used as either a low-power voltage reference or a 100mA regulator.
filter 尋找其它 線性與低壓差 (LDO) 穩壓器
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 3
類型 標題 日期
* Data sheet LP2951-Q1 Automotive, Adjustable Micropower Voltage Regulators With Shutdown datasheet (Rev. G) PDF | HTML 2024年 4月 16日
Functional safety information LP2951-Q1 Functional Safety FIT Rate and Failure Mode Distribution 2019年 12月 16日
EVM User's guide LP2951 EVM User's Guide (Rev. A) 2018年 1月 5日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LP2951EVM — LP2951 固定/可調整微功耗低壓差 (LDO) 穩壓器評估模組

The LP2951 devices are bipolar low-dropout (LDO) voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V with an output load up to 100 mA. The LP2951EVM allows for flexibility in design, allowing the user to add or remove input and output capacitors, as well as (...)
使用指南: PDF
TI.com 無法提供
模擬型號

LP2951-50 PSpice Transient Model

SLVMA10.ZIP (24 KB) - PSpice Model
下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
WSON (DRG) 8 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片