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Analog Devices LT8640S | Demoboard DC2530A
42V, 6A Micropower Synchronous Step-Down Silent Switcher 2
Overview
| Topology | Buck Converter |
| Input voltage | 5.8-42 V |
| Switching frequency | 1850-2150 kHz |
| Output 1 | 5 V / 6 A |
| IC revision | 1 |
Description
Demonstration circuit 2530A is a 42V, 6A micropower synchronousstep-down second generation Silent Switcher®with spread spectrum frequency modulation featuringthe LT8640S. The demo board is designed for 5V outputfrom a 5.8V to 42V input. The wide input range allows avariety of input sources, such as automotive batteries andindustrial supplies. The LT8640S is a compact, ultralowemission, high efficiency, and high speed synchronousmonolithic step-down switching regulator. The integratedbypass capacitors optimize all the fast current loops andmake it easier to minimize EMI/EMC emissions by reducinglayout sensitivity. Selectable spread spectrum modecan further improve EMI/EMC performance. Ultralow quiescentcurrent in Burst Mode® operation achieves highefficiency at very light loads. Fast minimum on-time of30ns enables high VIN to low VOUT conversion at highfrequency.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | f(mm) | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(mA) | Z @ 1 GHz(Ω) | H(mm) | Type | Pins | Mount | L(mm) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, 100 Ω | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | Impedance @ 100 MHz100 Ω | Maximum Impedance160 Ω | Maximum Impedance1100 MHz | Rated Current8000 mA | Impedance @ 1 GHz150 Ω | Height2.3 mm | TypeHigh Current | – | MountSMT | Length4.5 mm | – | Operating Temperature -55 °C up to +125 °C | ||||
 | WA-SNSR Self-Retaining Spacer, 4.8 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SNSR Self-Retaining Spacer | Drilling in Panel4.8 mm | – | – | – | – | – | – | – | – | – | Length12.7 mm | – | Operating Temperature -30 °C up to +85 °C | |||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | – | Rated Current3000 mA | – | – | – | Pins2 | – | – | Working Voltage200 V (AC) | Operating Temperature -25 °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 | – | – | – | – | Rated Current2000 mA | – | – | TypeStraight | Pins8 | MountTHT | Length8 mm | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |