Texas Instruments UA78L10ACLP: 10V 100mA Linear Voltage Regulator - Features, Specs & Applications
Texas Instruments UA78L10ACLP: A High-Performance 10V 100mA Linear Voltage Regulator
The UA78L10ACLP from Texas Instruments is a precision-engineered linear voltage regulator designed to deliver stable 10V output with up to 100mA current capacity. This comprehensive guide explores its technical specifications, key features, and diverse applications to help engineers select the ideal power management solution.
In-Depth Product Overview
The UA78L10ACLP belongs to Texas Instruments' renowned 78L series of linear regulators, offering:
- Fixed 10V output with 5% voltage accuracy
- 100mA continuous output current
- 25V maximum input voltage
- Low dropout voltage of 1.7V @ 40mA
- TO-92-3 package for easy through-hole mounting
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 10V 5% |
| Output Current | 100mA (max) |
| Input Voltage Range | 12V to 25V |
| Dropout Voltage | 1.7V @ 40mA |
| Line Regulation | 60mV (typ) |
| Load Regulation | 150mV (typ) |
| PSRR | 44dB @ 120Hz |
| Operating Temperature | 0 C to +125 C |
Advanced Protection Features
The UA78L10ACLP incorporates multiple protection mechanisms:
1. Thermal Shutdown Protection
Automatically disables the regulator when junction temperature exceeds 150 C, with hysteresis for reliable recovery.
2. Current Limiting
Built-in current limiting protects against output short circuits and overload conditions.
3. Safe Operating Area Protection
Ensures reliable operation across all input/output voltage combinations.
Performance Characteristics
The regulator demonstrates excellent performance metrics:
- Low noise output: 40 V RMS (10Hz to 100kHz)
- Fast transient response: <50 s recovery for 50mA load steps
- Stable with low-ESR capacitors: Requires only 0.33 F output capacitance
Comprehensive Application Guide
1. Microcontroller Power Supplies
Ideal for powering 8-bit and 16-bit MCUs in embedded systems.
2. Sensor Modules
Provides clean power for analog sensors in IoT and industrial applications.
3. Battery-Powered Devices
Efficient regulation for 12V-24V battery systems with low quiescent current (5mA typical).
4. Industrial Control Systems
Reliable operation in harsh environments (-40 C to +125 C extended range available).
Design Considerations
For optimal performance:
- Maintain input voltage at least 2V above output
- Use 0.1 F ceramic capacitor at input for high-frequency bypass
- Include 0.33 F or larger capacitor at output
- Ensure proper heat dissipation for high current applications
Competitive Advantages
The UA78L10ACLP outperforms alternatives with:
- Superior line/load regulation compared to basic 78L05 variants
- Better thermal performance than SOT-23 packaged regulators
- More robust protection features than budget regulators
- Texas Instruments' quality and reliability assurance
Purchasing Information
Available through authorized distributors in multiple packaging options:
- Single units in TO-92-3 package
- Reel packaging for automated assembly (1000 pieces)
- Sample quantities available for prototyping
Conclusion
The Texas Instruments UA78L10ACLP represents an optimal balance of performance, reliability and cost for 10V regulation requirements. Its robust design, comprehensive protection features, and Texas Instruments' quality make it the preferred choice for engineers worldwide. For power supply designs requiring stable 10V output with up to 100mA current, the UA78L10ACLP delivers exceptional value and performance.
Ready to integrate the UA78L10ACLP into your design? Visit our authorized distributor network today to request samples or place volume orders.