SL7210
AEC-Q100 qualified 500mA high-current LDO with 5V fixed output for power-hungry automotive applications.
Product Overview
Description
The SL7210 is a high-current automotive LDO designed for applications requiring more power than the standard 300mA devices. With 500mA output capability, it can power multiple MCUs, sensors, and communication modules from a single regulator.
The device maintains the same 45V maximum input voltage and comprehensive protection features as the SL7205, while delivering higher current. The low dropout voltage of 300mV at 500mA ensures efficient operation.
Available in thermally enhanced TO-252 and TO-263 packages to handle the increased power dissipation. AEC-Q100 Grade 1 qualified for automotive reliability.
Product Series
SL
Primary Application
Multi-MCU Power Supply
Key Features
- High efficiency and reliability
- Optimized for industrial applications
- Comprehensive technical support
- Available from stock
Specifications
| Input Voltage Range | 4.5V - 45V |
|---|---|
| Output Voltage | 5V fixed |
| Output Current | 500mA max |
| Quiescent Current | 100uA typical |
| Dropout Voltage | 300mV at 500mA |
| Line Regulation | 0.05%/V typical |
| Load Regulation | 25mV typical |
| Temperature Range | -40°C to +125°C |
| Package | TO-252, TO-263 |
| Qualification | AEC-Q100 Grade 1 |
Applications
Multi-MCU Power Supply
Power conversion and supply
High-Current Sensor Arrays
Sensor signal conditioning
Communication Hub Power
Communication and interface
Body Control Modules
Industrial automation and control
Gateway Modules
Electronic system design
FAE Expert Insights
"The SL7210 is my recommendation when customers need more than 300mA from their automotive LDO. The 500mA capability handles multiple loads without needing separate regulators. The larger packages (TO-252/TO-263) provide better heat sinking for the higher power dissipation. I have used this part in gateway modules and body control modules where multiple MCUs and communication transceivers need power. The protection features and wide temperature range make it reliable for automotive use."
High-current 500mA automotive LDO for demanding applications
— Lisa Wang, BeiLuo
Frequently Asked Questions
How much PCB copper area is needed for SL7210?
For SL7210 at maximum current: TO-252 package needs minimum 1 square inch copper area for heat sinking. TO-263 package with tab can handle higher dissipation with 0.5 square inches. Calculate thermal requirements: P = (Vin - Vout) × Iout. At 14V input, 5V output, 500mA: P = 4.5W. Ensure maximum junction temperature stays below 125°C at your ambient temperature.
Provide adequate copper area based on power dissipation calculations. Use thermal vias for better heat spreading.