The SP4446 is a micro power Boost Regualtor in a 5-lead SOT-23 package. It is a current limited, fixed off time regulator configured for use in boost mode applications. The operating voltage can be less than 3V and is capable of generating voltages as high as 30 Volts.
The SP4446 is a miniature high‑output voltage boost regulator in a 5‑lead SOT‑23 package. It operates from a single cell (Vin ≥ 1 V) and can generate voltages up to 30 V while maintaining a low quiescent current of about 20 µA. The device includes a programmable output voltage, internal protection, and a shutdown pin for power management.
Typical applications include LCD biasing, white‑LED drivers, cell‑phone power supplies, and other low‑power boost converter needs. The datasheet provides detailed electrical characteristics, recommended component selections, layout guidelines, and ordering information for both standard and lead‑free versions.
| Input voltage range | 1.0 V – 8.0 V |
|---|---|
| Maximum output voltage | 30 V |
| Switch current limit | 150 mA |
| Quiescent current | ~20 µA |
| Package type | 5‑pin SOT‑23 |
The SP4446 can generate voltages up to 30 V.
It is supplied in a 5‑pin SOT‑23 package.
The device has a low quiescent current of about 20 µA.
The SP4446 operates from 1.0 V to 8.0 V input.