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Analog Devices LT8686S | Demoboard DC3126A
42V Quad, Gangable, Synchronous, Monolithic Step-Down Regulator
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 5-12 V |
| Schaltfrequenz | 1800-2250 kHz |
| Ausgang 1 | 1.2 V / 2 A |
| Ausgang 2 | 5 V / 2 A |
| Ausgang 3 | 3.3 V / 2 A |
| Ausgang 4 | 1.8 V / 2 A |
Beschreibung
Demonstration circuit 3126A is a quad power supply featuring the LT8686S. The LT8686S is a 42V quad channel current mode monolithic synchronous step-down regulator. The LT8686S combines two 42V capable 2A buck regulators with two 8V capable 2A buck regulators. The demo board is designed for 5V, 3.3V, 1.8V, and 1.2V outputs from a nominal 12V input with switching frequency set at 2MHz. The 5V and 3.3V converters are powered from a wide range of 6V to 42V. The 1.8V and 1.2V converters are powered from the 5V output by default or from 3V to 8V supply alternatively. The current capability is 2A for all 4 outputs when running individually.The DC3126A provides two 42V regulators that can be combined to deliver up to 4A of output current using a singular inductor. Similarly, the two 8V regulators can be combined to deliver up to 4A of output current using a singular inductor. The allowed channel combinations are given in the data sheet.
Eigenschaften
- Silent Switcher®2 Architecture
- Ultralow EMI Emissions
- Optional Spread Spectrum Modulation
- Two High Voltage Synchronous Buck Regulators
- 3V to 42V Input Voltage Range
- Output Currents Up to 2A per Channel
- Channels May Be Connected in Parallel Using a Single Inductor
- Two Low Voltage Synchronous Buck Regulators
- 3V to 8V Input Voltage Range
- Output Currents up to 2A per Channel
- Channels May Be Connected in Parallel Using a Single Inductor
- 12μA IQ All Channels Active and No-Load
- Flexible Supply Sequencing and Control
- Adjustable and Synchronizable: 350kHz to 3MHz
- Available in 32-Pin LQFN (5mm × 5mm)
- AEC-Q100 Qualified for Automotive Applications
Typische Anwendungen
- Power Supplies
- Industrial Controls
- Automotive Systems
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Pins | Typ | Montageart | L(mm) | H(mm) | IR(A) | Arbeitsspannung(V (AC)) | Betriebstemperatur | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Speicherdrossel, 0.22 µH, 11.4 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LHMI SMT Speicherdrossel | Induktivität0.22 µH | Performance Nennstrom11.4 A | Sättigungsstrom 110.8 A | Sättigungsstrom @ 30%22.3 A | Gleichstromwiderstand7.3 mΩ | Eigenresonanzfrequenz195 MHz | Pins2 | – | MontageartSMT | Länge4.45 mm | Höhe1.8 mm | – | – | Betriebstemperatur -40 °C up to +125 °C | ||||
 | WR-PHD Kurzschlussbrücken, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Kurzschlussbrücken | – | – | – | – | – | – | Pins2 | – | – | – | – | Nennstrom3 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -25 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | Pins3 | TypGerade | MontageartTHT | Länge6 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Downloads7 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | Pins6 | TypGerade | MontageartTHT | Länge6 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | ||
 | WR-PHD Stiftleisten, –, – | Simulation– | Downloads7 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | Pins8 | TypGerade | MontageartTHT | Länge8 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C |