STMicroelectronics STMicroelectronics LD39020 低静止電流リニアレギュレータ
STMicroelectronics LD39020 低静止電流リニアレギュレータは、高精度の電圧レギュレータで、200mVの標準ドロップアウト電圧を備え、1.5V~5.5Vの範囲の入力電圧から200mAの最大電流を提供します。DFN 1x1-4Lパッケージで提供しており、最大限の省スペースを実現しています。出力のセラミックコンデンサと安定して動作します。LD39020 は極めて低いドロップ電圧、低静止電流、低ノイズを特長とし、本体一体型ソフトスタート回路により、低電力バッテリ動作アプリケーションに最適です。The STMicroelectronics LD39020 Quiescent Current Linear Regulators are available in compact available in DFN4 and SOT23-5L packages, ideal for space-constrained applications.
特徴
- Input voltage from 1.5V to 5.5V
- Ultra low dropout voltage (200mV typ. at 200mA load)
- Very low quiescent current (20μA typ at no load, 0.03μA typ in off mode)
- Output voltage tolerance: ±0.5% (A version) or ± 2.0% @ 25°C (standard version)
- 200mA guaranteed output current
- High PSRR (80dB @ 1kHz, 50db @ 100kHz)
- Wide range of output voltages available on request: from 0.8V up to 5.0V in 50mV steps
- Logic-controlled electronic shutdown
- Internal soft-start
- Optional output voltage discharge feature
- Compatible with ceramic capacitor COUT = 0.47μF
- Internal constant current and thermal protections
- -40°C to +125°C operating temperature range
- 1.0mm x 1.0mm DFN4 package
アプリケーション
- Smartphones
- Tablets
- Cameras
- Cordless phones and similar battery-powered systems
- Portable media players
STEVAL-ISB037V1 Evaluation Board
STMicroelectronics STEVAL-ISB037V1 Evaluation Board features the LD39020 high performance linear voltage regulator. The regulator is configured to convert a DC input voltage from 2.4V to 5.5V into a precise and stable 1.8V output voltage. Only two small ceramic capacitors are needed to implement the linear regulator solution.
Block Diagram
Pin Designations
公開: 2014-11-05
| 更新済み: 2022-03-11
