onsemi

NCP1117DT15G

NCP1117DT15G Description

The NCP1117DT15G from onsemi is a fixed-output, positive linear voltage regulator designed to deliver a stable 1.5V output at up to 1A of continuous current. With a wide input voltage range of up to 20V, this regulator is well-suited for applications requiring efficient step-down voltage conversion. The device features a low dropout voltage of 1.2V @ 800mA, ensuring reliable performance even when the input voltage approaches the output level. Packaged in a DPAK (TO-252) surface-mount form factor, it is optimized for space-constrained designs while offering robust thermal dissipation.

NCP1117DT15G Features

• High Accuracy Fixed Output: Precision 1.5V output with tight voltage regulation.
• Low Dropout Voltage: 1.2V dropout at 800mA minimizes power loss.
• High PSRR: 72dB at 120Hz ensures excellent noise rejection for sensitive circuits.
• Robust Protection: Built-in over-current and over-temperature safeguards enhance reliability.
• Wide Operating Temperature: Functions reliably from 0°C to 125°C, suitable for industrial environments.
• Low Quiescent Current: 10mA Iq balances efficiency and performance.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.

NCP1117DT15G Applications

The NCP1117DT15G is ideal for:

• Embedded Systems: Powering microcontrollers, FPGAs, and low-voltage logic circuits.
• Consumer Electronics: Voltage regulation in set-top boxes, routers, and portable devices.
• Industrial Controls: Reliable power management for sensors, actuators, and PLCs.
• Automotive Electronics: Auxiliary power supply in infotainment or telematics systems (within operating limits).
• Battery-Powered Devices: Efficient voltage conversion in backup power systems.

Conclusion of NCP1117DT15G

The NCP1117DT15G stands out as a high-performance, cost-effective linear regulator, offering a balance of low dropout, high PSRR, and robust protection. While marked as obsolete, its proven reliability makes it a viable choice for legacy designs or applications requiring a stable 1.5V supply. Its DPAK package ensures easy integration, while its wide operating range suits diverse industrial and consumer use cases. For new designs, consider checking onsemi's latest alternatives, but for existing systems, this regulator remains a dependable solution.