This document introduces the features of the 58645 series low voltage precision regulators, including low noise, high dynamic range, and multiple output voltages.
The R5312L series are multi‑LDO regulators designed for power management in cellular phones. Each IC integrates eight low‑noise LDOs, voltage detectors, and two LED drivers that can be controlled via a 3‑wire serial interface.
The manual includes an outline of features, a block diagram, a selection guide, detailed pin descriptions, absolute maximum ratings, overall and electrical characteristics, and noise performance graphs. It is intended for designers who need to configure voltage settings, understand pin functions, and evaluate electrical limits.
| Standby Current (typical) | 10 µA |
|---|---|
| Output Voltage Setting Range (VR1‑VR8) | 2.5 V – 3.3 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Supply Voltage (Vop) | 6.5 V |
| Package | 32‑pin QFP, 0.5 mm lead pitch |
The standby current is typically 10 µA when only VR4 is enabled at no load.
VR1 has a dropout voltage of 150 mV at a load of 120 mA.
Each R5312L IC contains eight LDO regulators.
The device is offered in a 32‑pin QFP package with a 0.5 mm lead pitch.