ST LF33ABDT-TR - 3.3 V 500 mA LDO regulator (±1%), DPAK

Original STMicroelectronics LF33ABDT-TR (LFxxAB Series) is a surface-mount (SMD/SMT) very low dropout (LDO) linear voltage regulator in a DPAK / TO-252 power package with thermal tab. The AB grade provides high precision output accuracy of ±1% at 25 °C (±2% over the full -40 °C to +125 °C operating temperature range), delivering a stable 3.3 V fixed output with up to 500 mA output current. Typical dropout voltage is just 0.45 V at full 500 mA load and under 0.2 V at 200 mA.

Features include internal thermal overload protection, current limiting, and short-circuit protection, making it ideal for powering 3.3 V microcontrollers, DSPs, logic systems, and analog sensors. The factory label identifies TYPE LF33ABDT-TR (device marking LF33A), trace code GK6121CH, RoHS / ECOPACK2. The image is a generic illustration of a DPAK / TO-252 package, not a photograph of these specific parts.

Minimum order: 10 pcs. Above that, any quantity up to available stock can be ordered.

Official STMicroelectronics LFxx datasheet