SP6231 Overview
The SP6231 is a 500mA, 3.3V LDO with an integrated auxiliary voltage input switch. During normal operation, the SP6231 acts as a standard LDO with an output voltage of 3.3V delivering up to 500mA. When the 5V input drops below 4.4V, the 3.3V, VAUX input is switched to the output through an internal PFET, maintaining a constant “glitch free” output voltage.
SP6231 Key Features
- 3.3V Fixed LDO Output Voltage
- 400µA Quiescent Current @500mA Load
- Fast Transient Response
- Current Limit Protection
- Thermal Shutdown Protection with Hysteresis
- Auxiliary Supply Control
- Internal 0.2Ω PFET Switch Eliminates External FETs
- Kelvin Connection with 3.3V Feedback