LP2980-N

現行

具啟用功能的 50-mA、16-V、低壓差電壓穩壓器

alarm通知 立即訂購

產品詳細資料

Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 16 Vin (min) (V) 2.1 Vout (max) (V) 5 Vout (min) (V) 2.5 Fixed output options (V) 2.5, 3, 3.3, 3.8, 4.7, 5 Rating Catalog Noise (µVrms) 160 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 175 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 16 Vin (min) (V) 2.1 Vout (max) (V) 5 Vout (min) (V) 2.5 Fixed output options (V) 2.5, 3, 3.3, 3.8, 4.7, 5 Rating Catalog Noise (µVrms) 160 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 175 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • VIN range (new chip): 2.5V to 16V
  • VOUT range (new chip):
    • 1.2V to 5.0V (fixed, 100mV steps)
  • VOUT accuracy:
    • ±0.5% for A-grade legacy chip
    • ±1% for standard-grade legacy chip
    • ±0.5% for new chip (A grade and standard grade)
  • Output accuracy over load, and temperature: ±1% (new chip)
  • Output current: Up to 50mA
  • Low IQ (new chip): 69µA at ILOAD = 0mA
  • Low IQ (new chip): 380µA at ILOAD = 50mA
  • Shutdown current over temperature:
    • 0.01µA (typ) for legacy chip
    • 1.12µA (typ) for new chip
  • Output current limiting and thermal protection
  • Stable with 2.2µF ceramic capacitors (new chip)
  • High PSRR (new chip):
    • 75dB at 1kHz, 45dB at 1MHz
  • Operating junction temperature: –40°C to +125°C
  • Package: 5-pin SOT-23 (DBV)
  • VIN range (new chip): 2.5V to 16V
  • VOUT range (new chip):
    • 1.2V to 5.0V (fixed, 100mV steps)
  • VOUT accuracy:
    • ±0.5% for A-grade legacy chip
    • ±1% for standard-grade legacy chip
    • ±0.5% for new chip (A grade and standard grade)
  • Output accuracy over load, and temperature: ±1% (new chip)
  • Output current: Up to 50mA
  • Low IQ (new chip): 69µA at ILOAD = 0mA
  • Low IQ (new chip): 380µA at ILOAD = 50mA
  • Shutdown current over temperature:
    • 0.01µA (typ) for legacy chip
    • 1.12µA (typ) for new chip
  • Output current limiting and thermal protection
  • Stable with 2.2µF ceramic capacitors (new chip)
  • High PSRR (new chip):
    • 75dB at 1kHz, 45dB at 1MHz
  • Operating junction temperature: –40°C to +125°C
  • Package: 5-pin SOT-23 (DBV)

The LP2980-N is a fixed-output, wide-input, low-dropout (LDO) voltage regulator supporting an input voltage range from 2.5V to 16V and up to 50mA of load current. The LP2980-N supports an output range of 1.2V to 5.0V (new chip).

Additionally, the LP2980-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

In the new chip, wide bandwidth PSRR performance is 75dB at 1kHz and 45dB at 1MHz to help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2980-N is available in a 5-pin, 2.9mm × 1.6mm SOT-23 (DBV) package.

The LP2980-N is a fixed-output, wide-input, low-dropout (LDO) voltage regulator supporting an input voltage range from 2.5V to 16V and up to 50mA of load current. The LP2980-N supports an output range of 1.2V to 5.0V (new chip).

Additionally, the LP2980-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

In the new chip, wide bandwidth PSRR performance is 75dB at 1kHz and 45dB at 1MHz to help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2980-N is available in a 5-pin, 2.9mm × 1.6mm SOT-23 (DBV) package.

下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
可直接投入的替代產品,相較於所比較的裝置,具備升級功能
LP2980-ADJ 現行 具有啟用功能的 50-mA、16-V 可調式低壓降電壓穩壓器 Adjustable version
引腳對引腳且具備與所比較裝置相同的功能
TPS7A24 現行 具啟用功能的 200mA、18V、超低 IQ 低壓差 (LDO) 電壓穩壓器 Pin-to-pin option with ultra-low-IQ (2 µA)

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 4
類型 標題 日期
* Data sheet LP2980-N Micropower, 50mA, Ultra-Low Dropout Regulator in SOT-23 Package datasheet (Rev. R) PDF | HTML 2025年 2月 26日
Application note AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) 2013年 4月 25日
Application note AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 2013年 4月 23日
White paper Engineers note: Capacitors are key to voltage regulator design 2002年 7月 1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)。

參考設計

PMP10098 — 具超廣泛輸入電壓範圍的低功耗返馳參考設計

This reference design has an ultra-wide input voltage range from 19-375V DC / 19-265V AC, and provides an isolated output of 12.0V/40mA. A linear regulator provides a second output of 5.0V/15mA.
Test report: PDF
電路圖: PDF
參考設計

PMP30168 — 具有 24V DC 輸入和 12V DC 輸出的 280W 車用雙相同步降壓參考設計

This 280W two phase synchronous buck converter for automotive applications is designed for a nominal input voltage of 24V to 28V with support for cranking (down to 18V) and load dump < 58V. It provides up to 20A output current at an output voltage of 12 to 14V, which can be set externally (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

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

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