LT8471HFE#PBF
ActiveDUAL MULTITOPOLOGY DC/DC CONVERTERS WITH 2A SWITCHES AND SYNCHRONIZATION
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LT8471HFE#PBF
ActiveDUAL MULTITOPOLOGY DC/DC CONVERTERS WITH 2A SWITCHES AND SYNCHRONIZATION
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT8471HFE#PBF |
|---|---|
| Current - Output | 1.35 A, 2.1 A |
| Frequency - Switching [Max] | 2 MHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Up, Step-Up/Step-Down, Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive or Negative |
| Output Type | Adjustable |
| Package / Case [custom] | 4.4 mm, 0.173 in |
| Package / Case [custom] | Exposed Pad |
| Package / Case [custom] | 20-TSSOP |
| Supplier Device Package | 20-TSSOP-EP |
| Synchronous Rectifier | False |
| Topology | Flyback, SEPIC, Boost, Buck |
| Voltage - Input (Max) [Max] | 50 V |
| Voltage - Input (Min) [Min] | 2.6 V |
| Voltage - Output (Max) [Max] | 50 V |
| Voltage - Output (Min/Fixed) | 2.6 V |
LT8471 Series
Dual Multitopology DC/DC Converters with 2A Switches and Synchronization
| Part | Number of Outputs | Operating Temperature [Max] | Operating Temperature [Min] | Topology | Supplier Device Package | Voltage - Input (Max) [Max] | Function | Current - Output | Voltage - Output (Max) [Max] | Output Configuration | Output Type | Voltage - Output (Min/Fixed) | Frequency - Switching [Min] | Frequency - Switching [Max] | Package / Case [custom] | Package / Case [custom] | Package / Case [custom] | Voltage - Input (Min) [Min] | Mounting Type | Synchronous Rectifier | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | 2 | 150 °C | -40 °C | Boost Buck Flyback SEPIC | 20-TSSOP-EP | 50 V | Step-Down Step-Up Step-Up/Step-Down | 1.35 A 2.1 A | 50 V | Positive or Negative | Adjustable | 2.6 V | 100 kHz | 2 MHz | 0.173 in 4.4 mm | Exposed Pad | 20-TSSOP | 2.6 V | Surface Mount | ||
 Analog Devices | 2 | 125 ¯C | -40 °C | Boost Buck Flyback SEPIC | 28-QFN (4x5) | 50 V | Step-Down Step-Up Step-Up/Step-Down | 1.35 A 2.1 A | 50 V | Positive or Negative | Adjustable | 2.6 V | 100 kHz | 2 MHz | 2.6 V | Surface Mount | 28-WFQFN Exposed Pad | ||||
Analog Devices | 2 | 125 ¯C | -40 °C | Boost Buck Flyback SEPIC | 20-TSSOP-EP | 50 V | Step-Down Step-Up Step-Up/Step-Down | 1.35 A 2.1 A | 50 V | Positive or Negative | Adjustable | 2.6 V | 100 kHz | 2 MHz | 0.173 in 4.4 mm | Exposed Pad | 20-TSSOP | 2.6 V | Surface Mount | ||
Analog Devices | 2 | 150 °C | -40 °C | Boost Buck Flyback SEPIC | 20-TSSOP-EP | 50 V | Step-Down Step-Up Step-Up/Step-Down | 1.35 A 2.1 A | 50 V | Positive or Negative | Adjustable | 2.6 V | 100 kHz | 2 MHz | 0.173 in 4.4 mm | Exposed Pad | 20-TSSOP | 2.6 V | Surface Mount | ||
 Analog Devices | 2 | 125 ¯C | -40 °C | Boost Buck Flyback SEPIC | 20-TSSOP-EP | 50 V | Step-Down Step-Up Step-Up/Step-Down | 1.35 A 2.1 A | 50 V | Positive or Negative | Adjustable | 2.6 V | 100 kHz | 2 MHz | 0.173 in 4.4 mm | Exposed Pad | 20-TSSOP | 2.6 V | Surface Mount |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 13.80 | |
| 10 | $ 9.79 | |||
| 25 | $ 8.76 | |||
| 100 | $ 7.61 | |||
| 250 | $ 7.05 | |||
| 500 | $ 6.71 | |||
| 1000 | $ 6.53 | |||
Description
General part information
LT8471 Series
The LT8471 is a dual PWM DC/DC converter containing two internal 2A, 50V switches and an additional 500mA switch to facilitate step-down and inverting conversion. Each 2A channel can be independently configured as a buck, boost, SEPIC, flyback or inverting converter. Capable of generating positive and negative outputs from a single input rail, the LT8471 is ideal for many local power supply designs.The LT8471 has an adjustable oscillator, set by a resistor placed from the RT pin to ground. Additionally, the LT8471 can be synchronized to an external clock. The free running or synchronized switching frequency range of the part can be set between 100kHz and 2MHz.Additional features such as frequency foldback, soft-start, and power good are integrated. The LT8471 is available in 20-lead TSSOP and 28-Lead (4mm × 5mm) QFN packages.ApplicationsDual Rail Power for Signal Chain.Buck/Buck, Buck/Boost, Boost/Boost, Boost/Invert, Invert/Invert, Buck/Invert
Documents
Technical documentation and resources