A 200mA LDO that handles 30V input — the headroom story
The Maxim MAX16910CASA8+ is a single-output, positive adjustable LDO linear regulator rated for 200 mA continuous output. Its maximum input voltage is 30 V, and dropout is 0.6 V at 200 mA. Quiescent current is 30 µA. The part is in an 8-SOIC-EP package and operates from -40°C to 125°C.
Adjustable output with fixed-voltage options on the same die
The output configuration is listed as Adjustable (Fixed), meaning the device is fundamentally an adjustable regulator with the ability to set fixed output voltages of 1.5 V, 3.3 V, or 5 V through pin-strapping or factory programming — the exact mechanism depends on the variant ordering code. The adjustable output range spans from 1.5 V up to 11 V maximum output. This flexibility lets a single BOM line cover multiple output rails by selecting the appropriate fixed-voltage variant or using the adjustable version with a resistor divider. The Enable and Reset control features are included on-chip, giving the system designer a sequenced power-up and a power-good indicator without external supervisor ICs.
Package and mounting
The power supply rejection ratio is 60 dB at 100 Hz. Protection features include over-temperature shutdown and short-circuit current limiting.
Active lifecycle — no LTB risk for new designs
This is a clean sourcing signal for both new-design-in and ongoing production. The part is ROHS3 compliant.
Package and rework notes for the 8-SOIC-EP
The 8-SOIC-EP (exposed pad) package measures 0.154" body width, 3.90 mm wide, with an exposed thermal pad on the bottom. The exposed pad is the primary thermal path — it must be soldered to a copper land on the PCB and connected to a thermal via array.