MICROCHIP MCP1804 Fixed LDO Regulator, 12V, 150mA, SOT-23-5

The MICROCHIP MCP1804T-C002I/OT is a CMOS low dropout voltage regulator designed for efficient power management in a wide range of applications. It delivers a fixed 12V output at up to 150mA, making it ideal for precision voltage regulation in compact electronic devices.

With an input operating range of 2V to 28V, this regulator offers excellent flexibility for various supply voltages. The typical quiescent current is remarkably low at 50µA, and when the shutdown function is engaged, it draws only 0.01µA, significantly extending battery life in portable devices.

The LDO is stable with ceramic, tantalum, or aluminium electrolytic capacitors, allowing for design flexibility and cost-effective BOMs. Its low dropout voltage of 650mV ensures efficient operation even when the input voltage is close to the output voltage. The device also features over-current protection with current foldback, providing robust short-circuit protection.

Key Features and Specifications

• Fixed 12V output with ±2% accuracy
• Input voltage range: 2V to 28V
• Maximum output current: 150mA
• Low quiescent current: 50µA typical
• Shutdown current: 0.01µA typical
• Dropout voltage: 650mV typical
• Stable with ceramic, tantalum, or aluminium electrolytic capacitors
• Over-current limit protection with current foldback
• High PSRR: 50dB typical at 1kHz
• Output voltage options from 1.8V to 18V in 0.1V increments (this variant fixed at 12V)

The MCP1804 is available in a compact SOT-23-5 package, making it suitable for space-constrained designs. Operating over a temperature range of -40°C to +85°C, it is reliable in demanding environments.

Important Notice

This device is ESD sensitive; proper precautions should be taken during handling.

• Note: Market demand has led to extended lead times; delivery dates may fluctuate. This product is exempted.