Dual-rail generation from a single IC
The TPS65131RGER is a dual-output regulator that integrates a boost and a buck-boost converter in one 24-VQFN package, producing both a positive and a negative adjustable rail from a single 2.7V to 5.5V input. The 1.8A switch current on each channel supports loads like OLED bias, CCD sensor supplies, or op-amp rails where a split supply is needed without a transformer.
Output voltage range and switching frequency
The positive output adjusts from a 3.2V minimum up to 15V; the negative output adjusts from -2V down to -15V.