Voltage References 50 ppm 0.1% Voltage Reference

MCP1501T-33E/CHY – 3.3V Precision Voltage Reference IC – Microchip Technology

Ensure consistent power stability in your designs with the MCP1501T-33E/CHY precision voltage reference IC from Microchip Technology. This high-accuracy series voltage reference delivers a fixed 3.3V output with ultra-low ±0.1% tolerance, making it ideal for sensitive measurement systems and portable devices where reliable voltage regulation is critical. PCX supplies this active-component directly with guaranteed authenticity and same-day shipping.

Key Features

• Fixed 3.3V Output with ±0.1% initial accuracy
• Ultra-Low 50ppm/°C Temperature Coefficient for stable performance
• 20mA Output Current capability
• Wide 3.5V to 5.5V Input Range compatible with common power rails
• Low 550µA Supply Current for energy-efficient operation
• Industrial Temperature Range: -40°C to +125°C (TA)
• Compact SOT-23-6 Package for space-constrained designs

Technical Specifications

This series voltage reference IC features a fixed output type with 3.3V nominal voltage. It maintains exceptional stability across its full operating temperature range thanks to its low temperature coefficient. The surface-mount SOT-23-6 package (supplier device package: SOT-23-6) enables easy integration into PCB assemblies. With an input voltage range of 3.5V to 5.5V and minimal current consumption, it optimizes power efficiency in battery-powered applications.

Typical Applications

• Precision analog-to-digital converter (ADC) and digital-to-analog converter (DAC) systems
• Portable medical devices and industrial sensors
• Battery management systems and power monitoring circuits
• Test and measurement equipment calibration
• IoT devices requiring stable voltage rails

About Microchip Technology

Microchip Technology is a leading semiconductor manufacturer renowned for its robust portfolio of microcontrollers, analog, and power management solutions. With decades of industry experience, the company maintains rigorous quality standards and continuous innovation in embedded control systems. Their components are widely adopted in automotive, industrial, and consumer applications for their reliability and performance consistency.

Microchip’s commitment to long-term product lifecycle support ensures design longevity, while their global manufacturing capabilities guarantee component availability. Engineers worldwide trust Microchip products for mission-critical systems, backed by comprehensive technical documentation and design resources.

About Voltage Reference ICs

Voltage reference integrated circuits provide a stable, precise DC output voltage regardless of input variations, temperature fluctuations, or load changes. They serve as critical accuracy anchors in analog circuits, ensuring measurement integrity and signal consistency. Without high-quality voltage references, sensitive electronic systems like data converters, sensors, and regulators would suffer from significant performance degradation.

In modern electronics, precision voltage references like the MCP1501 series are indispensable for maintaining signal chain accuracy. They enable reliable operation in environments with wide temperature swings or unstable power sources, making them essential components in medical instrumentation, industrial automation, and portable electronics where measurement precision directly impacts system functionality.

Packaging Options

Available in industry-standard formats including Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® packaging. Contact PCX for reel quantities and custom packaging requirements.

Frequently Asked Questions

Q: What is the typical application circuit for this voltage reference?
A: The MCP1501 requires only a 0.1µF bypass capacitor at input and output pins for stable operation. Refer to the datasheet on PCXCo.com for implementation details.

Q: Can this IC drive capacitive loads?
A: Yes, it remains stable with capacitive loads up to 10µF without external compensation.

Q: Is this suitable for automotive applications?
A: While operating temperature meets automotive requirements (-40°C to +125°C), verify AEC-Q100 compliance for specific automotive use cases.

Q: How does this compare to shunt references?
A: Series references like the MCP1501 offer superior power efficiency and load regulation compared to shunt types, especially at lower currents.

Q: What is the long-term stability specification?
A: Microchip guarantees excellent long-term stability of 50ppm/√kHr typical after 1000 hours.

Q: Can I parallel multiple devices for higher current?
A: Not recommended due to potential accuracy drift. Use a buffer amplifier for current expansion instead.

Product images are representational only. Refer to datasheets for exact specifications.

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