onsemi

NCP121AMX145TCG

NCP121AMX145TCG Description

The NCP121AMX145TCG is a fixed output linear voltage regulator designed and manufactured by onsemi, a leading provider of semiconductor solutions. This regulator is part of the Linear & Switching Voltage Regulators category and is known for its reliable performance and robust design. It features a fixed output voltage of 1.45V and is capable of delivering a continuous output current of 150mA. The device operates with an input voltage range up to 5.5V, making it suitable for a variety of low-voltage applications.

NCP121AMX145TCG Features

• Output Type: Fixed
• Input Voltage Range: Up to 5.5V
• Output Current: 150mA
• Number of Regulators: 1
• Output Configuration: Positive
• Output Voltage: Fixed at 1.45V
• Voltage Dropout: Maximum of 0.075V at 150mA
• Power Supply Rejection Ratio (PSRR): 80dB to 70dB at 1kHz
• Control Features: Enable function
• Protection Features: Over Current, Over Temperature, Under Voltage Lockout (UVLO)
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: REACH Unaffected, ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 8542.39.0001

The NCP121AMX145TCG stands out due to its low dropout voltage of only 0.075V at maximum load, which ensures efficient power conversion even at low input voltages. This feature is particularly beneficial in battery-powered applications where maintaining a high efficiency over the entire battery discharge cycle is crucial. The regulator also offers excellent PSRR, which helps in minimizing noise and ripple in the output voltage, ensuring clean power supply for sensitive analog circuits.

NCP121AMX145TCG Applications

The NCP121AMX145TCG is ideal for a range of applications that require stable and low-noise power supply. Some specific use cases include:

• Battery-Powered Devices: The low dropout voltage and high efficiency make it suitable for portable electronics and IoT devices where battery life is a critical factor.
• Analog Circuits: The high PSRR ensures that the regulator can provide a clean power supply, making it ideal for powering sensitive analog components such as op-amps and ADCs.
• Embedded Systems: The enable function allows for dynamic power management, enabling the regulator to be turned on and off as needed, which is useful in systems with varying power requirements.
• Consumer Electronics: The compact surface mount package and robust protection features make it suitable for use in a variety of consumer electronics where space and reliability are important considerations.

Conclusion of NCP121AMX145TCG

The NCP121AMX145TCG is a versatile and efficient linear voltage regulator that offers a combination of low dropout voltage, high PSRR, and robust protection features. Its fixed output voltage of 1.45V and ability to deliver 150mA make it suitable for a wide range of low-voltage applications. Despite being marked as obsolete, the NCP121AMX145TCG remains a reliable choice for designers looking for a compact and efficient power solution. Its compliance with industry standards such as REACH and ROHS3 ensures that it meets environmental and safety regulations, making it a responsible choice for modern electronics design.