LT8708HLWE-1#PBF
Active80V SYNCHRONOUS 4-SWITCH BUCK-BOOST DC/DC SLAVE CONTROLLER FOR LT8708 MULTIPHASE SYSTEM
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LT8708HLWE-1#PBF
Active80V SYNCHRONOUS 4-SWITCH BUCK-BOOST DC/DC SLAVE CONTROLLER FOR LT8708 MULTIPHASE SYSTEM
Technical Specifications
Parameters and characteristics for this part
| Specification | LT8708HLWE-1#PBF |
|---|---|
| Clock Sync | True |
| Control Features | Enable |
| Duty Cycle (Max) | 80 % |
| Frequency - Switching [Max] | 400 kHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 64-LQFP Exposed Pad |
| Supplier Device Package | 64-LQFP-EP (10x10) |
| Synchronous Rectifier | True |
| Topology | Buck-Boost |
| Voltage - Supply (Vcc/Vdd) [Max] | 80 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 2.8 V |
LT8708-1 Series
80V Synchronous 4-Switch Buck-Boost DC/DC Slave Controller for LT8708 Multiphase System
| Part | Synchronous Rectifier | Number of Outputs | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Output Configuration | Frequency - Switching [Max] | Frequency - Switching [Min] | Topology | Package / Case | Output Phases | Clock Sync | Mounting Type | Output Type | Function | Supplier Device Package | Duty Cycle (Max) | Control Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices | 1 | 125 °C | -40 °C | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 40-WFQFN Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 40-QFN (5x8) | 80 % | |||
Analog Devices | 1 | 125 °C | -40 °C | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 40-WFQFN Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 40-QFN (5x8) | 80 % | |||
 Analog Devices | 1 | 125 ¯C | -40 °C | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 64-LQFP Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 64-LQFP-EP (10x10) | 80 % | Enable | ||
 Analog Devices | 1 | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 40-WFQFN Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 40-QFN (5x8) | 80 % | |||||
Analog Devices | 1 | 125 ¯C | -40 °C | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 64-LQFP Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 64-LQFP-EP (10x10) | 80 % | Enable | ||
Analog Devices | 1 | 125 °C | -40 °C | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 40-WFQFN Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 40-QFN (5x8) | 80 % | |||
Analog Devices | 1 | 150 °C | -40 °C | 80 V | 2.8 V | Positive | 400 kHz | 100 kHz | Buck-Boost | 64-LQFP Exposed Pad | 2 | Surface Mount | Transistor Driver | Step-Up/Step-Down | 64-LQFP-EP (10x10) | 80 % | Enable |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tray | 1 | $ 21.53 | |
| 10 | $ 15.73 | |||
| 25 | $ 14.24 | |||
| 80 | $ 12.80 | |||
| 230 | $ 11.84 | |||
| 440 | $ 11.49 | |||
Description
General part information
LT8708-1 Series
The LT8708 is a high performance buck-boost switching regulator controller that operates from an input voltage that can be above, below or equal to the output voltage. Features are included to simplify bidirectional power conversion in battery/capacitor backup systems and other applications that may need regulation of VOUT, VIN, IOUT, and/or IIN. Forward and reverse current can be monitored and limited for the input and output sides of the converter. All four current limits (forward input, reverse input, forward output and reverse output) can be set independently using four resistors on the PCB.The MODE pin can select between discontinuous conduction mode (DCM), continuous conduction mode (CCM), hybrid conduction mode (HCM) and Burst Mode®operation. In combination with the DIR (direction) pin, the chip can be configured to process power only from VINto VOUTor only from VOUTto VIN. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8708 is compatible with most solar, automotive, telecom and battery-powered systems.APPLICATIONSHigh Voltage Buck-Boost ConvertersBidirectional Charging SystemAutomotive 48V Systems
Documents
Technical documentation and resources