Overview
The LTC3779EFE#TRPBF, produced by Analog Devices Inc., is a high-performance synchronous 4-switch buck-boost controller. This device is capable of operating from input voltages that are above, below, or equal to the output voltage, making it highly versatile for various power management applications. The LTC3779 features a wide input and output voltage range, from 4.5V to 150V, and is available in a TSSOP-38-EP-4.4mm package, which is RoHS compliant.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VIN Input Supply Operating Voltage Range | 4.5 | 150 | V | |
| VOUT Output Supply Operating Voltage Range | 1.2 | 150 | V | |
| Regulated Feedback Voltage | 1.188 | 1.2 | 1.212 | V |
| Transition Time: Rise Time (VDRVCC = 9V, CLOAD = 3300pF) | 60 | ns | ||
| Transition Time: Fall Time (VDRVCC = 9V, CLOAD = 3300pF) | 60 | ns | ||
| PGOOD Trip Level (VFB with Respect to Set Regulated Voltage) | ±1 | µA | ||
| PGOOD Delay (VPGOOD High to Low) | 125 | µs | ||
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Package | TSSOP-38-EP-4.4mm |
Key Features
- Synchronous 4-switch buck-boost topology for high efficiency and minimal component count.
- Wide input and output voltage range: 4.5V to 150V.
- High accuracy regulated feedback voltage: 1.2V ±1.2%.
- Fast transition times: 60ns rise and fall times with a 3300pF load.
- PGOOD indicator with adjustable delay and trip levels.
- Mode selection pin for forced continuous or pulse-skipping mode.
- External synchronization capability through PLLIN pin.
- RoHS compliant and available in TSSOP-38-EP-4.4mm package.
Applications
The LTC3779EFE#TRPBF is suitable for a variety of power management applications, including but not limited to:
- Industrial power supplies requiring high voltage and current handling.
- Automotive systems where input voltage can vary widely.
- Renewable energy systems, such as solar and wind power, where efficient power conversion is crucial.
- Telecommunication equipment and data centers requiring reliable and efficient power supplies.
Q & A
- What is the input voltage range of the LTC3779EFE#TRPBF?
The input voltage range is from 4.5V to 150V. - What is the output voltage range of the LTC3779EFE#TRPBF?
The output voltage range is from 1.2V to 150V. - What is the package type of the LTC3779EFE#TRPBF?
The device is available in a TSSOP-38-EP-4.4mm package. - Is the LTC3779EFE#TRPBF RoHS compliant?
Yes, the device is RoHS compliant. - What are the operating modes of the LTC3779EFE#TRPBF?
The device can operate in forced continuous mode or pulse-skipping mode, selectable via the MODE pin. - Can the LTC3779EFE#TRPBF be synchronized with an external clock?
Yes, the device can be synchronized with an external clock through the PLLIN pin. - What is the typical transition time for the LTC3779EFE#TRPBF?
The typical transition time is 60ns for both rise and fall times with a 3300pF load. - What is the PGOOD trip level and delay for the LTC3779EFE#TRPBF?
The PGOOD trip level is ±1µA, and the delay from high to low is 125µs. - What is the operating junction temperature range for the LTC3779EFE#TRPBF?
The operating junction temperature range is from -40°C to 125°C. - Where can I find more detailed specifications for the LTC3779EFE#TRPBF?
You can find detailed specifications in the datasheet available on the Analog Devices website or through distributors like LCSC and Mouser.
