Triple step-down synchronous DC/DC switching regulator controller drives all N-channel power MOSFET power stages. Constant-frequency peak current-mode control supports synchronization and phase-lockable switching from 100 kHz to 3 MHz. The controller operates from a 4.5 V to 40 V input supply and supports output voltages from 0.8 V to 99% of VIN. Three 120-degree out-of-phase buck channels reduce input capacitance demand, power loss, and supply noise. The 40-lead 6 mm by 6 mm plastic QFN package is specified for -40°C to 150°C operation.
Checking distributor stock and pricing after the page loads.
Sign in to ask questions about the Analog Devices LTC7819RUJ#PBF datasheet using AI. Get instant answers about specifications, features, and technical details, ideal for finding information in larger documents.
Sign In to ChatWidest selection of semiconductors and electronic components in stock and ready to ship ™
| Function | Step-down synchronous DC/DC controller |
| Topology | Buck |
| Number of Outputs | 3 |
| Input Supply Voltage Minimum | 4.5V |
| Input Supply Voltage Maximum | 40V |
| Output Voltage Minimum | 0.8V |
| Output Voltage Maximum | 99% of VIN |
| Switching Frequency Minimum | 100kHz |
| Switching Frequency Maximum | 3MHz |
| Operating Quiescent Current | 14 typicalµA |
| Shutdown Quiescent Current | 1.5µA |
| Control Architecture | Constant-frequency peak current mode |
| Channel Phase Relationship | 120 out of phasedegrees |
| Duty Cycle Capability Channel 1 | 100% |
| Duty Cycle Capability Channels 2 and 3 | 99% |
| Operating Temperature Range | -40 to 150°C |
| Package | 40-lead 6mm x 6mm plastic QFN |
| RoHS | Compliant |
| Lead Free | Yes |
Download the complete datasheet for Analog Devices LTC7819RUJ#PBF to view detailed technical specifications.
The embedded preview will load automatically when this section scrolls into view.
These are design resources that include the Analog Devices LTC7819RUJ#PBF
Demo manual for the DC2897A featuring the LTC7819, a triple output synchronous step-down supply providing 3.3V, 8.5V, and 5V outputs from a 10V-36V input.
