The product is a high voltage 3A, 500kHz step-down switching regulator with 100µA quiescent current.
The LT3435 is a 500 kHz monolithic buck switching regulator that accepts input voltages up to 60 V and delivers up to 3 A of output current. It features a low‑quiescent burst‑mode operation (100 µA) and a power‑good flag with programmable threshold.
The document includes absolute maximum ratings, electrical characteristics, pin descriptions, typical performance curves, and package information for the 16‑lead TSSOP version. It also outlines synchronization, soft‑start, and shutdown functions for system designers.
| Input voltage range | 3.3 V to 60 V |
|---|---|
| Peak switch current | 3 A |
| Switching frequency | 500 kHz |
| Quiescent current (burst mode) | 100 µA |
| Shutdown current | < 1 pA |
| Feedback reference voltage | 1.25 V |
The device is rated for up to 60 V on the Vin pin.
The shutdown current is less than 1 pA.
The switching frequency can be set between 425 kHz and 575 kHz.
The SYNC pin (pin 14) synchronizes the internal oscillator to an external signal.