NE555D by Texas Instruments is an 8-terminal IC with a supply voltage range of 4.5V to 16V, suitable for analog waveform generation applications. It operates at temperatures from 0°C to 70°C and has a max supply current of 15mA. The package style is small outline, making it ideal for compact electronic designs.
LM2931AZ-5.0RAG by Onsemi is a Fixed Positive Single Output LDO Regulator with 5V nominal output voltage, 0.1A max output current, and 0.6V max dropout voltage. Ideal for applications requiring stable voltage regulation in temperature-sensitive environments up to 150°C.
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .001 A;