This document describes a high-voltage bipolar monolithic step-down converter with high efficiency and low quiescent current at light loads. The product has a wide input voltage range and a high-efficiency power switch, making it suitable for battery-powered applications and automotive applications.
The document introduces the LT1976, a 1.5A monolithic buck switching regulator designed to optimize efficiency across all current levels. It features an extremely wide input voltage range from 3.3V to 60V, making it suitable for automotive and telecom applications.
| Input Voltage Range | 3.3V to 60V |
|---|---|
| Quiescent Current (Zero Load) | <100uA at 12V |
| Peak Switch Current | 1.5A |
| Switching Frequency | 200kHz (Synchronizable up to 700kHz) |
| Package Type | 16-Pin Thermally Enhanced TSSOP |
The LT1976 consumes a mere 100uA at zero load and 12V input.
Yes, it can be synchronized at frequencies up to 700kHz.
It controls the output voltage ramp-up rate to reduce inrush current and limit overshoot.