LTC3829EFE#PBF
Active3-PHASE, SINGLE OUTPUT SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER WITH DIFFAMP
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LTC3829EFE#PBF
Active3-PHASE, SINGLE OUTPUT SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER WITH DIFFAMP
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3829EFE#PBF |
|---|---|
| Clock Sync | False |
| Control Features | Soft Start, Enable, Frequency Control, Power Good, Tracking, Current Limit |
| Duty Cycle (Max) [Max] | 94 % |
| Frequency - Switching [Max] | 770 kHz |
| Frequency - Switching [Min] | 250 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 3 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Output Phases | 3 |
| Output Type | Transistor Driver |
| Package / Case | 38-TFSOP, Exposed Pad |
| Package / Case | 4.4 mm, 0.173 " |
| Supplier Device Package | 38-TSSOP-EP |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 38 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.5 V |
| Part | Duty Cycle (Max) [Max] | Number of Outputs | Frequency - Switching [Max] | Frequency - Switching [Min] | Output Phases | Mounting Type | Output Type | Synchronous Rectifier | Control Features | Package / Case | Clock Sync | Output Configuration | Topology | Supplier Device Package | Operating Temperature [Min] | Operating Temperature [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Function | Package / Case | Grade | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-WFQFN Exposed Pad | Positive | Buck | 38-QFN (5x7) | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | |||||
Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-WFQFN Exposed Pad | Positive | Buck | 38-QFN (5x7) | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | |||||
 Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-WFQFN Exposed Pad | Positive | Buck | 38-QFN (5x7) | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | |||||
 Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-TFSOP Exposed Pad | Positive | Buck | 38-TSSOP-EP | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | 0.173 " 4.4 mm | ||||
 Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-TFSOP Exposed Pad | Positive | Buck | 38-TSSOP-EP | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | 0.173 " 4.4 mm | ||||
 Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-TFSOP Exposed Pad | Positive | Buck | 38-TSSOP-EP | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | 0.173 " 4.4 mm | Automotive | AEC-Q100 | ||
Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-WFQFN Exposed Pad | Positive | Buck | 38-QFN (5x7) | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | |||||
Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-TFSOP Exposed Pad | Positive | Buck | 38-TSSOP-EP | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | 0.173 " 4.4 mm | ||||
Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-TFSOP Exposed Pad | Positive | Buck | 38-TSSOP-EP | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | 0.173 " 4.4 mm | Automotive | AEC-Q100 | ||
Analog Devices Inc./Maxim Integrated | 94 % | 3 | 770 kHz | 250 kHz | 3 | Surface Mount | Transistor Driver | Current Limit Enable Frequency Control Power Good Soft Start Tracking | 38-TFSOP Exposed Pad | Positive | Buck | 38-TSSOP-EP | -40 C | 125 °C | 4.5 V | 38 V | Step-Down | 0.173 " 4.4 mm |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | N/A | 84 | $ 12.33 | 1m+ |
| Tube | 1 | $ 11.10 | 1m+ | |
| 10 | $ 7.84 | |||
| 25 | $ 7.01 | |||
| 100 | $ 6.07 | |||
| 250 | $ 6.06 | |||
Description
General part information
LTC3829 Series
The LTC3829 is a high performance 3-phase single output synchronous step-down DC/DC switching controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase-lockable frequency of up to 770kHz. Power loss and noise due to ESR of the input capacitors are minimized by operating the three controller output stages out of phase.The LTC3829 can be configured for 6-phase operation, has DCR temperature compensation, and output foldback current limiting. This device features a precision 0.6V reference and a power good indicator.Light load efficiency is optimized by using a choice of output Stage Shedding or Burst Mode operation. A differential amplifier provides true remote sensing of the output voltage at the point of load.The LTC3829 is available in both low profile 38-pin 5mm × 7mm QFN and Exposed Pad FE packages.ApplicationsNotebook and Palmtop ComputersTelecom SystemsDC Power Distribution Systems
Documents
Technical documentation and resources