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TC1221ECHTR

TC1221ECHTR Description

The TC1221ECHTR is a fixed output, charge pump-based DC switching voltage regulator designed by Microchip Technology. This device is ideal for applications requiring a compact, efficient, and reliable power solution. The TC1221ECHTR operates within an input voltage range of 1.8V to 5.5V, providing a stable output current of up to 25mA. It features a ratiometric function, which ensures the output voltage is proportional to the input voltage, making it suitable for various power management tasks.

The regulator is housed in a surface-mount SOT23 package, which is available in tape and reel format, facilitating automated assembly processes. Despite its small form factor, the TC1221ECHTR delivers robust performance with a switching frequency of 125kHz. This high-frequency operation allows for the use of smaller external components, reducing the overall footprint of the power supply design.

TC1221ECHTR Features

• Output Type: Fixed, ensuring a stable output voltage.
• Input Voltage Range: 1.8V to 5.5V, providing flexibility for a wide range of input sources.
• Output Current: Up to 25mA, suitable for low-power applications.
• Output Configuration: Positive or Negative, offering versatility in circuit design.
• Function: Ratiometric, maintaining a consistent output-to-input voltage ratio.
• Switching Frequency: 125kHz, enabling the use of smaller inductors and capacitors.
• Topology: Charge Pump, which simplifies the design and enhances efficiency.
• Package: SOT23 in Tape & Reel (TR), ideal for surface-mount technology (SMT) assembly.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), indicating high resistance to moisture.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory standards are met.

TC1221ECHTR Applications

The TC1221ECHTR is well-suited for a variety of applications that demand efficient power conversion in a compact form factor. Its ratiometric function and wide input voltage range make it particularly useful in:

• Battery-powered devices: Where input voltage levels can vary significantly.
• Portable electronics: Such as smartphones, tablets, and wearables, where space and power efficiency are critical.
• Industrial control systems: For powering sensors and low-power actuators.
• Medical devices: Requiring reliable and efficient power management.
• Consumer electronics: Including digital cameras, MP3 players, and other portable gadgets.

Conclusion of TC1221ECHTR

The TC1221ECHTR from Microchip Technology stands out as a reliable and efficient DC switching voltage regulator. Its unique combination of a wide input voltage range, fixed output, and ratiometric function makes it a versatile solution for a variety of low-power applications. The charge pump topology and high switching frequency contribute to its efficiency and compact design, while the SOT23 package ensures ease of integration into modern electronic circuits. Despite being marked as obsolete, the TC1221ECHTR remains a valuable component for designers seeking a robust and efficient power management solution.