The broad portfolio of over 500 linear regulators has been expanded by Texas Instruments (TI), by introducing a first-of-its-kind smart AC/DC linear regulator. With 75% higher efficiency and two times the power density of other linear regulators, this device achieves balance between high efficiency and ultra-low noise while shrinking power-supply size.
The fully integrated TPS7A78 linear regulator uses a switched-capacitor architecture to eliminate discrete components, including external inductors and transformers and miniature circuit breakers and interrupters, for tamper-resistant designs in applications including electronic metering in grid infrastructure and building automation.
The TPS7A78 is a non-isolated linear regulator that delivers up to 0.5W from AC to DC with smaller, fewer components. This smart design optimises regulation through an active bridge, switch capacitor and integrated low-dropout regulator (LDO). This design results in higher efficiency and a reduced capacitor size compared to linear regulators in traditional capacitor-drop solutions utilising a Zener diode.
Features and benefits of the TPS7A78
Available through the TI store and authorised distributors, the TPS7A78 is offered in a 14-pin, 5x6.5mm thin-shrink small-outline package (TSSOP) and priced in small reels at $1.00 in 1,000-unit quantities.