Microchip MCP1703T-3302E/CB Fixed LDO Regulator 3.3V 250mA SOT-23A

The Microchip MCP1703T-3302E/CB is a fixed output CMOS low dropout (LDO) voltage regulator in a compact 3-pin SOT-23A package. Designed to deliver a stable 3.3V output with a typical output current of 250mA, this regulator is an ideal power management solution for a wide range of battery-powered and consumer electronic applications.

With an input voltage range from 2.7V to 16V, it seamlessly supports two to six primary cell battery configurations, 9V alkaline batteries, and one or two cell Li-Ion power sources. The output voltage tolerance is typically ±0.4% at +25°C and a maximum of ±3% over the full operating temperature range of -40°C to +125°C, ensuring reliable performance in demanding conditions.

The LDO is stable with a mere 1μF output capacitance and can work with ceramic, tantalum, or aluminium electrolytic capacitors on the input and output. It features a low typical dropout voltage of 525mV at full load and a low quiescent current of just 2μA, maximizing efficiency in battery-operated devices. Robust protection includes overcurrent limit, short circuit protection, and overtemperature shutdown, making it a durable choice for any application.

Key Features:

• Fixed 3.3V output voltage
• 250mA maximum output current
• Input voltage range: 2.7V to 16V
• Low dropout voltage: typically 525mV at 250mA
• Low quiescent current: 2μA typical
• Stable with 1μF to 22μF ceramic output capacitance
• Operating junction temperature range: -40°C to +125°C
• Overcurrent and short circuit protection
• Overtemperature shutdown

Whether you are designing portable devices, consumer electronics, or power management systems, the MCP1703T-3302E/CB delivers consistent, regulated power in a tiny footprint, making it a versatile and dependable component for your projects.