LT8705AIUHF#PBF
DC/DC Controller, Synchronous Buck-Boost, 2.8V to 80V, 1 Output, 77% Duty Cycle, 350kHz, QFN-EP-38
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | LT8705AIUHF#PBFCopy |
| Manufacturer Standard Lead Time | 12 weeks |
| Newark Part No. | 50AK6376 |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | $24.030 |
| 5+ | $21.650 |
| 10+ | $19.270 |
| 25+ | $18.620 |
| 50+ | $17.980 |
| 100+ | $17.330 |
Product Information
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | LT8705AIUHF#PBFCopy |
| Manufacturer Standard Lead Time | 12 weeks |
| Newark Part No. | 50AK6376 |
| Technical Datasheet | |
| Control Mode | Current Mode Control |
| Supply Voltage Min | 2.8V |
| Supply Voltage Max | 80V |
| No. of Outputs | 1Outputs |
| Duty Cycle (%) | 77% |
| IC Case / Package | QFN-EP |
| No. of Pins | 38Pins |
| Switching Frequency | 350kHz |
| Topology | Synchronous Buck-Boost |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Qualification | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (04-Feb-2026) |
| Automotive Qualification Standard | - |
| Controller IC Case Style | QFN-EP |
| No. of Outputs | 1 Output |
Product Overview
LT8705A is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. It includes a MODE pin to select among Burst Mode® operation, discontinuous or continuous conduction mode at light loads. Additional features include a 3.3V/12mA LDO, a synchronizable fixed operating frequency, and on-board gate drivers. It is widely used in application such as high voltage buck-boost converters, input or output current limited converters etc.
- Operating voltage range is 2.8V to 80V at (EXTVCC = 7.5V)
- Output voltage range is 1.3V to 80V
- Quad N-Channel MOSFET gate drivers
- Synchronous rectification upto 98% efficiency
- Input and output current monitor pins, clock output usable to monitor die temperature
- Synchronizable fixed frequency is 100KHz to 400KHz
- Integrated input current, input voltage, output current and output voltage feedback loops
- Improved light load transition from DCM to FCM
- Operating temperature is -40°C to 125°C
- Packaging style is 38-lead plastic QFN
Notes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Technical Specifications
| Control Mode | Current Mode Control |
|---|---|
| Supply Voltage Max | 80V |
| Duty Cycle (%) | 77% |
| No. of Pins | 38Pins |
| Topology | Synchronous Buck-Boost |
| Operating Temperature Max | 125°C |
| Qualification | - |
| SVHC | No SVHC (04-Feb-2026) |
| Controller IC Case Style | QFN-EP |
| Supply Voltage Min | 2.8V |
|---|---|
| No. of Outputs | 1Outputs |
| IC Case / Package | QFN-EP |
| Switching Frequency | 350kHz |
| Operating Temperature Min | -40°C |
| Product Range | - |
| MSL | MSL 1 - Unlimited |
| Automotive Qualification Standard | - |
| No. of Outputs | 1 Output |
Technical Docs (2)
Legislation and Environmental
| US ECCN: | EAR99 |
|---|---|
| EU ECCN: | Unknown |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |