首頁 電源管理 線性與低壓差 (LDO) 穩壓器

LP38693-ADJ

現行

具啟用功能的 500-mA、10-V 可調式低壓降電壓穩壓器

產品詳細資料

Rating Catalog Vin (max) (V) 10 Vin (min) (V) 2.7 Iout (max) (A) 0.5 Output options Adjustable Output Vout (max) (V) 9 Vout (min) (V) 1.25 Noise (µVrms) 80 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.055 Features Enable, Foldback Overcurrent protection Thermal resistance θJA (°C/W) 51 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 10 Vin (min) (V) 2.7 Iout (max) (A) 0.5 Output options Adjustable Output Vout (max) (V) 9 Vout (min) (V) 1.25 Noise (µVrms) 80 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.055 Features Enable, Foldback Overcurrent protection Thermal resistance θJA (°C/W) 51 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
SOT-223 (NDC) 5 45.24 mm² 6.5 x 6.96 WSON (NGG) 6 9 mm² 3 x 3
  • Wide Input Voltage Range: 2.7 V to 10 V
  • All WSON Options are Available as AEC-Q100 Grade 1
  • Output Voltage Range: 1.25 V to 9 V
  • 2% Adjust (ADJ) Pin Voltage Accuracy (25°C)
  • Low Dropout Voltage: 250 mV at 500 mA
    (Typical, 5-V Out)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specs for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Ground (GND) Pin Curent: 55 µA (Typical) at Full Load
  • Enable (EN) Pin (LP38693-ADJ)
  • Wide Input Voltage Range: 2.7 V to 10 V
  • All WSON Options are Available as AEC-Q100 Grade 1
  • Output Voltage Range: 1.25 V to 9 V
  • 2% Adjust (ADJ) Pin Voltage Accuracy (25°C)
  • Low Dropout Voltage: 250 mV at 500 mA
    (Typical, 5-V Out)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specs for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Ground (GND) Pin Curent: 55 µA (Typical) at Full Load
  • Enable (EN) Pin (LP38693-ADJ)

The LP3869x-ADJ low-dropout CMOS linear regulators provide 2% precision reference voltage, extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultra-low equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON and SOT-223 packages allow use of the full operating current even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it, thus allowing the GND-pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP3869x-ADJ low-dropout CMOS linear regulators provide 2% precision reference voltage, extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultra-low equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON and SOT-223 packages allow use of the full operating current even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it, thus allowing the GND-pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

For all available packages, see the orderable addendum at the end of the data sheet.

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 1
類型 標題 日期
* Data sheet LP3869x-ADJ/Q1 500-mA Low-Dropout CMOS Linear Regulators Stable With Ceramic Output Capacitors datasheet (Rev. K) PDF | HTML 2016年 1月 19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

LP38693-ADJEV — 具有可調整輸出的 500mA 低壓差 CMOS 線性穩壓器評估板

The LP38693SD-ADJ is a 500mA low-dropout linear regulator whose output voltage can be externally set to any valuebetween 1.25V and 9V using two resistors. The output voltage on this evaluation board is pre-set to 3.30V. This application note gives information about the evaluation board supplied to (...)

使用指南: PDF
TI.com 無法提供
模擬型號

LP38693_ADJ PSpice Transient Model

SNVM596.ZIP (39 KB) - PSpice Model
模擬型號

LP38693_ADJ Unencrypted PSpice Transient Model

SNVMAA2.ZIP (1 KB) - PSpice Model
參考設計

TIDEP-0075 — 工業通訊閘道 PROFINET IRT 轉 PROFIBUS 主站參考設計

Profinet 具備高速,決定性通訊及企業連線能力,因此成為自動化領域的領導工業乙太網路通訊協定。然而,由於傳統投資保護,PROFIBUS 做為全球最受歡迎的 fieldbus,其重要性與使用將延續許多年。鑑於工廠中具備混合型系統特性,本參考設計可協助將現有的現場匯流排技術轉移至以 Sitara™ AM57x 處理器的可程式即時單元與工業通訊子系統 (PRU-ICSS) 為基礎的即時乙太網路。此 設計展示了 AM572x 上的 PROFIBUS 主要與 PROFINET IRT 裝置,並在 ARM Cortex-A15 核心上同時執行通訊協定堆疊,而整個 PROFINET 交換器與 (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00526 — 使用 LDO 進行 LED 控制和亮度匹配的參考設計

The TIDA-00526 is cost efficient and easy to implement white LED intensity control and brightness matching solution.
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-223 (NDC) 5 Ultra Librarian
WSON (NGG) 6 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