STMicroelectronics L79L05ACUTR Linear Voltage Regulator -5V 100mA SOT89-3 Package
- Brand: STMicroelectronics
- Product Code: L79L05ACUTR
- Availability: In Stock
$0.08
- Ex Tax: $0.08
STMicroelectronics L79L05ACUTR: Precision Negative Voltage Regulation in Compact SOT89-3 Packaging
Engineered for demanding electronic applications requiring stable negative voltage supply, the STMicroelectronics L79L05ACUTR linear voltage regulator delivers exceptional performance in an ultra-compact SOT89-3 footprint. This three-terminal negative voltage regulator provides precise -5V output with up to 100mA load current capacity, making it ideal for powering analog circuits, sensor interfaces, and industrial control systems where space constraints and thermal efficiency matter.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Output Voltage | -5V Fixed |
| Max Input Voltage | -30V |
| Output Current | 100mA |
| Quiescent Current | 5.5mA |
| PSRR | 49dB @ 120Hz |
Manufactured with ST's advanced bipolar process technology, this regulator combines high reliability with comprehensive protection features including integrated thermal shutdown and short-circuit current limiting. The SOT-89-3 package's low thermal resistance enables efficient heat dissipation even in high-temperature environments, maintaining stable operation across the full industrial temperature range of 0°C to 125°C.
As a member of STMicroelectronics' L79L series, this device offers exceptional line and load regulation performance while maintaining minimal dropout voltage characteristics. The negative voltage configuration makes it particularly suitable for audio amplifier circuits, industrial process control systems, and battery-powered instrumentation requiring clean negative supply rails.
Protection Features Matrix
| Feature | Specification |
|---|---|
| Thermal Protection | Automatic shutdown at 150°C |
| Short-Circuit Protection | 60mA typical current limit |
| Reverse Voltage Protection | Integrated |
Design engineers benefit from the device's inherent stability without requiring external compensation components, simplifying PCB layout and reducing BOM costs. The through-hole compatible SOT89-3 package maintains excellent thermal performance while enabling automated surface-mount assembly processes. Typical applications include precision instrumentation, telecom equipment, and automotive electronics where negative voltage rails must maintain tight regulation under varying load conditions.
With its combination of compact packaging, robust protection features, and industrial temperature rating, the L79L05ACUTR establishes a new benchmark for cost-effective negative voltage regulation solutions. Its 49dB power supply rejection ratio ensures minimal noise transmission to sensitive analog circuits, while the 100mA output current capability supports modern low-power sensor interfaces and signal conditioning circuits.
Tags: electronic components, power supply solutions, industrial automation parts, surface mount devices, voltage regulation modules