The ST5R00 is a highly efficient VFM step-up DC/DC converter designed for small, low input voltage or battery-powered systems. It features ultra-low quiescent supply current and can accept a positive input voltage from the start-up voltage to the output voltage, converting it to a higher output voltage in the range of 2.5V to 5V. The ST5R00 combines ultra-low quiescent supply current and high efficiency to maximize battery life. Its high switching frequency and internally limited peak inductor current allow the use of small, low-cost inductors. Only three external components are required: an inductor, a diode, and an output capacitor. The ST5R00 is suitable for battery-powered equipment that requires low noise, low ripple, and ultra-low supply current. It is available in very small packages: SOT23-5L and SOT-89. Typical applications include pagers, cameras and video cameras, cellular telephones, wireless telephones, palmtop computers, battery backup supplies, and battery-powered equipment.
The ST5R00 series is a high‑efficiency VFM step‑up DC/DC converter designed for battery‑powered systems that require ultra‑low quiescent current, low noise and a wide range of regulated output voltages (2.5 V to 5 V). It operates from a very low start‑up voltage and needs only three external components – an inductor, a diode and an output capacitor.
Typical applications include pagers, cameras, cellular phones, wireless devices, palmtop computers and other portable equipment. The device is offered in compact SOT23‑5L and SOT‑89 packages and provides up to 100 mA output current with efficiencies up to 87 % at 5 V.
| Output voltage options | 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V |
|---|---|
| Maximum output current | 100 mA |
| Typical efficiency at 5 V | 87 % (typ) |
| Maximum input voltage | 5.5 V |
| Switching frequency | 150 kHz (typ) |
| Package types | SOT23‑5L, SOT‑89 |
The device can deliver up to 100 mA of output current.
Typical efficiency is about 87 % when delivering a 5 V output.
They are offered in compact SOT23‑5L and SOT‑89 packages.
The absolute maximum input voltage rating is 5.5 V.