Nanopower LDO for always-on and battery-sensitive rails
The Texas Instruments TPS7A0218PYCHR is a single-output, positive fixed-voltage LDO regulator delivering 200 mA with a quiescent current of 60 nA. The 1.8 V fixed output suits low-voltage digital cores, wireless MCU power domains, and always-on sensor rails. The package (0.64 x 0.64 mm) fits space-constrained portable and wearable designs, while the -40°C to 125°C junction temperature range covers industrial and automotive under-hood environments.
60 nA quiescent current — what it means for battery life
The 60 nA quiescent current is the defining spec for this LDO. Dropout voltage reaches 0.45 V maximum at the full 200 mA load, so the input rail must stay at least that margin above 1.8 V.
Active production — no obsolescence pressure
The TPS7A0218PYCHR carries an active product status per the manufacturer, with ROHS3 compliance. No last-time-buy or end-of-life notices are in effect.
Enable pin and protection for robust power sequencing
The Enable control feature lets the system designer gate the output rail. Built-in protection includes over-current, over-temperature, and under-voltage lockout (UVLO).