1.5 V rail, 200 mA, 3 µA Iq — where this LDO fits
The Texas Instruments TPS7A0515PDQNT is a fixed-output 1.5 V LDO rated for 200 mA continuous output, drawing just 3 µA quiescent current. It is built for always-on, battery-powered IoT nodes, wearables, and sensor modules where every microamp of standby current extends system runtime. The 4-X2SON package measures 1x1 mm — small enough to tuck next to a low-power MCU or radio on a dense board.
PSRR flat to 1 MHz — what it means for RF and mixed-signal rails
The TPS7A0515PDQNT holds 40 dB of power-supply rejection from 1 kHz through 1 MHz.
Package and layout — 1x1 mm X2SON with exposed pad
The 4-X2SON (1x1 mm) package is a four-lead, no-lead device with an exposed thermal pad. It requires a surface-mount reflow process; the pad must be soldered to a PCB copper land for thermal relief at 200 mA output.
Temperature range — industrial, not just commercial
Rated for -40°C to 125°C junction temperature, the TPS7A0515PDQNT qualifies for outdoor IoT gateways, automotive body electronics, and industrial sensor interfaces. No derating needed down to -40°C; the 3 µA Iq holds across the range.
Lifecycle — active, no end-of-life signal
TI lists this part as Active and ROHS3 compliant. For production BOMs, the active status removes the urgency of a lifetime buy.