G5130/G5131 is a PSM step-up DC/DC converter designed for use with 1~4 cell alkaline batteries. It has an output voltage range of 2.5V~5.0V, a maximum oscillation frequency of 100kHz, and an efficiency of up to 80%. It features high output voltage accuracy and low temperature coefficient.
The G5130 and G5131 are step‑up DC/DC converters designed for portable equipment such as handheld computers, digital cameras and multimedia players. They operate from a 1‑cell alkaline battery range and deliver an adjustable output voltage from 2.5 V to 5.0 V in 0.1 V steps, with up to 80 % efficiency and a 75 % duty ratio.
The document lists ordering numbers for both SOT‑23‑5 and SOT‑89 packages, pin configurations, absolute maximum ratings, electrical characteristics, and typical performance curves. It also includes package dimensions, recommended footprints, and a selector guide for choosing the desired output voltage.
| Output Voltage Range | 2.5 V ~ 5.0 V (0.1 V steps) |
|---|---|
| Maximum Efficiency | 80 % |
| Duty Ratio | 75 % |
| Maximum Oscillation Frequency | 100 kHz |
| Temperature Coefficient | < 100 ppm/°C |
| Output Voltage Accuracy | ±2 % |
| Operating Temperature Range | -40 °C ~ +85 °C |
| Package Types | SOT‑23‑5, SOT‑89 |
Only three external components – one inductor, one diode and one capacitor – are needed.
Both devices are offered in SOT‑23‑5 and SOT‑89 surface‑mount packages.
Yes, the G5131 can drive an external NPN device to provide more input current for larger output power.