STMicroelectronics LD39020 Quiescent Current Linear Regulators
STMicroelectronics LD39020 Very Low Quiescent Current Linear Regulators are a high accuracy voltage regulator that provides 200mA of maximum current from an input voltage ranging from 1.5V to 5.5V, with a typical dropout voltage of 200mV. These devices are stabilized with a ceramic capacitor on the output. The ultra low drop voltage, low quiescent current and low noise features, together with the internal soft-start circuit, make the LD39020 suitable for low power battery-operated applications.
The STMicroelectronics LD39020 Quiescent Current Linear Regulators are available in compact available in DFN4 and SOT23-5L packages, ideal for space-constrained applications.
Features
- 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
Applications
- 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
Complete Your Design
STMicroelectronics Standard Products
A broad range of drop-in replacements for general-purpose analog ICs, discretes, and serial EEPROMs.
Paskelbta: 2014-11-05
| Atnaujinta: 2022-03-11