| Part No.： | LTC3789 |
| Page： | 30 Pages |
| Size： | 459 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 0 |
| Update Time： | 2025-04-17 21:52:58 |
| DataSheet： | Download |
| Part No. | Packaging | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LTC3789EGN#PBF | Tube | 49 | LTC3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead Narrow Plastic SSOP | |
| LTC3789EGN#TRPBF | Reel | 2500 | LTC3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead Narrow Plastic SSOP | |
| LTC3789IGN#PBF | Tube | 49 | LTC3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead Narrow Plastic SSOP | |
| LTC3789IGN#TRPBF | Reel | 2500 | LTC3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead Narrow Plastic SSOP | |
| LTC3789EUFD#PBF | Tube | 73 | 3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead (4mm × 5mm) Plastic QFN | |
| LTC3789EUFD#TRPBF | Reel | 2500 | 3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead (4mm × 5mm) Plastic QFN | |
| LTC3789IUFD#PBF | Tube | 73 | 3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead (4mm × 5mm) Plastic QFN | |
| LTC3789IUFD#TRPBF | Reel | 2500 | 3789 | 1 | 28 | -40°C ~ 125°C | 28-Lead (4mm × 5mm) Plastic QFN |
The LTC3789 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant-frequency, current mode architecture allows a phase-lockable frequency of up to 600kHz, while an output current feedback loop provides support for battery charging. With a wide 4V to 38V (40V maximum) input and output range and seamless, low noise transitions between operating regions, the LTC3789 is ideal for automotive, telecom and battery-powered systems.
The operating mode of the controller is determined through the MODE/PLLIN pin. The MODE/PLLIN pin can select between pulse-skipping mode and forced continuous mode operation and allows the IC to be synchronized to an external clock. Pulse-skipping mode offers high efficiency and low ripple at light loads, while forced continuous mode operates at a constant frequency for noise-sensitive applications.
A PGOOD pin indicates when the output is within 10% of its designed set point. The LTC3789 is available in low profile 28-pin 4mm × 5mm QFN and narrow SSOP packages.