LTC3826IUH#TRPBF
Active30ΜA IQ, DUAL, 2-PHASE SYNCHRONOUS STEP-DOWN CONTROLLER
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LTC3826IUH#TRPBF
Active30ΜA IQ, DUAL, 2-PHASE SYNCHRONOUS STEP-DOWN CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3826IUH#TRPBF |
|---|---|
| Clock Sync | False |
| Control Features | Power Good, Soft Start, Enable, Tracking |
| Duty Cycle (Max) [Max] | 99.4 % |
| Frequency - Switching [Max] | 530 kHz |
| Frequency - Switching [Min] | 250 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Supplier Device Package | 32-QFN (5x5) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 36 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4 V |
LTC3826-1 Series
30µA IQ, Dual, 2-Phase Synchronous Step-Down Controller
| Part | Output Type | Output Configuration | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Topology | Operating Temperature [Max] | Operating Temperature [Min] | Duty Cycle (Max) [Max] | Function | Mounting Type | Clock Sync | Control Features | Synchronous Rectifier | Supplier Device Package | Number of Outputs | Output Phases | Frequency - Switching [Min] | Frequency - Switching [Max] | Package / Case [custom] | Package / Case | Package / Case [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 32-QFN (5x5) | 2 | 2 | 250 kHz | 530 kHz | |||||
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 28-SSOP | 2 | 2 | 250 kHz | 530 kHz | 0.209 in | 28-SSOP | 5.3 mm | ||
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 28-SSOP | 2 | 2 | 250 kHz | 530 kHz | 0.209 in | 28-SSOP | 5.3 mm | ||
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 28-SSOP | 2 | 2 | 250 kHz | 530 kHz | 0.209 in | 28-SSOP | 5.3 mm | ||
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 32-QFN (5x5) | 2 | 2 | 250 kHz | 530 kHz | |||||
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 28-SSOP | 2 | 2 | 250 kHz | 530 kHz | 0.209 in | 28-SSOP | 5.3 mm | ||
Analog Devices | Transistor Driver | Positive | 4 V | 36 V | Buck | 85 °C | -40 °C | 99.4 % | Step-Down | Surface Mount | Enable Power Good Soft Start Tracking | 32-QFN (5x5) | 2 | 2 | 250 kHz | 530 kHz |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2500 | $ 8.32 | |
Description
General part information
LTC3826-1 Series
The LTC3826-1 is a high performance dual step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase-lockable frequency of up to 650kHz. Power loss and noise due to the ESR of the input capacitor are minimized by operating the two controller output stages out of phase.The 30µA no-load quiescent current extends operating life in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3826-1 features a precision 0.8V reference and a power good output indicator. A wide 4V to 36V input supply range encompasses all battery chemistries.Independent TRACK/SS pins for each controller ramp the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions.The PLLIN/MODE pin selects among Burst Mode operation, pulse skipping mode, or continuous inductor current mode at light loads. For a leadless package version (5mm x 5mm QFN), see the LTC3826 datasheet.PGOODPolyPhaseDefeatable Current FoldbackPackageLTC38262YesYesQFN-32LTC3826-11NoNoSSOP-28ApplicationsAutomotive SystemsBattery-Operated Digital DevicesDistributed DC Power Systems
Documents
Technical documentation and resources