Dual-rail LDO for noise-sensitive and extended-temperature designs
The LP2967IMM-2528 is a dual-output positive LDO regulator from Texas Instruments, delivering two fixed output voltages — 2.5V and 2.8V — each rated for 150mA. It operates from a maximum input of 16V and draws 300 µA quiescent current per regulator. The part is built for surface-mount assembly in an 8-VSSOP package and is specified across the full -40°C to 125°C industrial and automotive temperature range. A notable characteristic is its power-supply rejection ratio: 52dB to 70dB from 120Hz through 1MHz. That wideband PSRR makes this LDO a practical choice for post-regulation of switching supplies feeding analog or RF stages, where ripple rejection at several hundred kilohertz matters more than a high DC PSRR figure alone.
Dropout and protection — what the ratings mean for the rail budget
Built-in protection covers over-current, over-temperature, and short-circuit events. The enable control pin allows the dual outputs to be sequenced or gated by a system supervisor, useful in multi-rail power-up schemes where core and I/O voltages must track or hold off.
Lifecycle and sourcing posture
The LP2967IMM-2528 carries an Active product status. This is a current-production part that can be specified into new designs without near-term obsolescence concern.