MICROCHIP MCP1702T-3302E/MB LDO Voltage Regulator, 3.3V 250mA, SOT-89-3

The MICROCHIP MCP1702T-3302E/MB is a high-performance CMOS low dropout (LDO) positive voltage regulator, designed for applications demanding stable and efficient power from a compact footprint. With a maximum output current of 250mA, it is capable of powering a wide range of microcontroller, sensor, and peripheral circuits. Its wide input voltage range of 2.7V to 13.2V, coupled with an exceptionally low quiescent current of just 2µA (typical), makes it an ideal power management solution for battery-operated devices. This includes equipment using multi-cell alkaline (9V), or one- to two-cell lithium-ion batteries, where maximising operational life is critical.

The regulator delivers a fixed 3.3V output with high precision, featuring a typical output voltage tolerance of ±0.4% at +25°C and a maximum of ±3% across the full operating temperature range of -40°C to +125°C. Excellent line regulation of ±0.1% typical ensures a stable output even with fluctuations in the input supply. A key advantage is its very low dropout voltage of 525mV, allowing it to continue regulating effectively even when the input voltage dips close to the output level, preserving battery energy.

Robust Design and Stability

Designed for reliability, the MCP1702 incorporates short-circuit protection and over-temperature shutdown, safeguarding both the regulator and your application against fault conditions. It remains stable with a minimal 1µF ceramic, tantalum, or aluminium electrolytic capacitor on its output, simplifying design and saving board space and cost. Its high output current capability supports demanding loads.

Applications

This versatile regulator is suited for numerous electronic applications, including:

• Power management for portable and handheld devices
• Security system components
• Sensing and instrumentation modules
• Consumer electronics,