Texas Instruments SM74503
The SM74503 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. It has the same pin-out as TI's industry standard LM317. The SM74503 is available in two fixed voltages, 3.3V and 5V.| Part No. | SM74503 |
|---|---|
| Datasheet | SM74503 Download |
| Manufacturer |  Texas Instruments |
| Description | 800mA Low-Dropout Linear Regulator |
| Buy | Stock & Price |
FEATURES
1●2 Renewable Energy Grade
● Available in 3.3V and 5V Versions
● Space Saving SOT-223 Package
● Current Limiting and Thermal Protection
● Output Current 800mA
● Line Regulation 0.2% (Max)
● Load Regulation 0.4% (Max)
● Temperature Range −40°C to 125°C
APPLICATIONS
● Photovoltaic Electronics● Post Regulator for Switching DC/DC Converter
● High Efficiency Linear Regulators
● Battery Charger
● Battery Powered Instrumentation
DESCRIPTION
The SM74503 offers current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap reference to assure output voltage accuracy to within ±1%. The SM74503 series is available in SOT-223 and PFM packages. A minimum of 10µF tantalum capacitor is required at the output to improve the transient response and stability. Typical Application Figure 1. Fixed Output Regulator 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
