Linear Technology Corp. (LTC, Milpitas, CA) announced its new 1.5 A LTC3026 very low dropout (VLDO) linear regulator with input voltage capability down to 1.14 V. The LTC3026 is suitable for switching power supplies; linear regulation from low input voltage (2.5 V/1.8 V/1.5 V) rails; and low-voltage, high-current digital ICs.
Featuring adjustable, ultra-low, output-voltage operation from 0.4 V to 2.6 V, the regulator maintains low dropout voltage of only 100 mV while delivering up to 1.5 A of output current. To allow operation at low input voltages, the LTC3026 includes an integrated boost converter that provides the necessary headroom for the internal LDO circuitry, which ensures flexibility of lower input voltage capability if an external 5 V rail is not available in the system.
The LTC3026 regulator optimizes stability and transient response with low ESR, ceramic output capacitors as small as 10 °F. Its internal protection circuitry includes soft-start, current-limiting, thermal-limiting, and reverse-current protection. Its shutdown disconnect feature disconnects both VIN and VBST from the output load in shutdown.
The LTC3026EDD and LTC3026EMSE are available from stock in the 10-lead DFN (3 mm x 3 mm x 0.75 mm) package and 10-lead MSOP package, respectively. Both packages offer thermally efficient, compact solution footprints. Pricing for 1,000-piece quantities starts at $2.20 each.