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Overview
| Topology | Buck Converter |
| Input voltage | 5-38 V |
| Output 1 | 3.3 V / 20 A |
Description
Demonstration circuit DC2834A is a DC/DC synchronous step-down converter featuring the LTC®7803 (MSE package), a spread spectrum or constant frequency current mode synchronous step-down controller. The DC2834A generates a 3.3V of output voltage.
Features
- Wide input voltage range: from 5V to 38V
- High load current, up to 20A
- Extremely low quiescent current: 15μA in sleep mode and as low as 1μA at shutdown
- Ability to select spread spectrum or fixed frequency
- Selectable pulse-skipping, forced continuous operation or low ripple Burst Mode® operation at light loads
- Synchronization with external clock
- The DC2834A supports RSENSE or inductor DCR cur¬rent sensing (optional).
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | C | Tol. C | VR(V (DC)) | Size | DF(%) | RISO | Ceramic Type | W(mm) | Fl(mm) | Packaging | Pins | Type | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CHSA SMT High Current Inductor, 0.68 µH, 41.4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CHSA SMT High Current Inductor | Inductance0.68 µH | Saturation Current41.4 A | DC Resistance2.05 mΩ | Self Resonant Frequency88 MHz | – | – | – | Size1212 | – | – | – | Width12.2 mm | – | – | – | – | MountSMT | Length12.2 mm | Height11.75 mm | Rated Current25.3 A | – | Operating Temperature -55 °C up to +150 °C | ||||
| WCAP-CSGP MLCCs 10 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage10 V (DC) | Size0603 | Dissipation Factor5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | Length1.6 mm | Height0.8 mm | – | – | Operating Temperature -55 °C up to +125 °C | |||||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | PackagingBag | Pins2 | – | – | – | – | Rated Current3 A | Working Voltage200 V (AC) | Operating Temperature -25 °C up to +105 °C | |||
 | WR-PHD Pin Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | PackagingBag | Pins3 | TypeStraight | MountTHT | Length6 mm | – | Rated Current2 A | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | WR-PHD Pin Header, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | PackagingBag | Pins6 | TypeStraight | MountTHT | Length6 mm | – | Rated Current2 A | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |