NCP690MNADJT2G

The ON Semiconductor NCP690MNADJT2G is a CMOS LDO voltage regulator family member providing 1A of output current with enhanced ESD protection. It is designed for space-constrained and portable battery-powered applications, offering features such as high PSRR, low quiescent current, and short circuit/thermal protection.

This adjustable version allows for output voltage settings from 5.0V down to 1.25V using external resistors. Key electrical specifications include a typical dropout voltage of 190mV at 1A, a typical noise voltage of 50µVrms without a bypass capacitor, and a PSRR of 62dB to 40dB across a frequency range of 120Hz to 10kHz. The device operates within an input voltage range of 1.5V to 6V and has an output current capability of 1A, though some sources indicate up to 2.4A.

The NCP690MNADJT2G is packaged in a compact 6-lead DFN (3x3) package, suitable for surface mounting. It operates over a temperature range of -40°C to 85°C. The device includes protection features such as over-temperature and short-circuit protection, making it a robust choice for various electronic designs.

Applications for this LDO include laptops, PCI cards, modem banks, telecom boards, DSP, FPGA, microprocessor boards, and hard disk drives, where stable and low-noise power regulation is critical.