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Analog Devices LTC3314A | Demoboard DC3205A
3.3V to 1V 8A, 2MHz Dual-Phase Low Ripple Step-Down DC/DC Regulator
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 2.25-5.5 V |
| Schaltfrequenz | 1800-2200 kHz |
| Ausgang 1 | 1.02 V / 8 A |
Beschreibung
Demo circuit 3205A features the LTC3314A, 5V, dual 4A/ dual-phase 8A step-down DC/DC regulator IC. This demo circuit is configured as a 2-phase, 2MHz, 3.3V input, single 1V output, 8A buck regulator. The top switches are 180-degree out of phase to reduce the output ripple.The LTC®3314A features dual monolithic synchronous 4A step-down power stages in a 30-ball, 2.2mm × 2.7mm WLCSP package for space saving applications with demanding performance requirements. Both bucks achieve high efficiency and fast transient response with small external components. The LTC3314A can also be configured as a dual output, 4A per output, step-down converter. Please refer to DC3204A as a dual output application example. The LTC3314A data sheet gives a complete description of its operation and application information. The data sheet must be read in conjunction All registered trademarks and trademarks are the property of their respective owners. PERFORMANCE SUMMARY with this demo manual when evaluating or modifying this demo circuit.
Eigenschaften
- Dual 4A Outputs
- Configurable as Single Output, 2-Phase 8A Buck
- High Efficiency: 12mΩ High-Side and 8mΩ Low-Side
- ±1% Maximum Total DC Output Error
- Wide Bandwidth, Fast Transient Response
- VIN Range: 2.25V to 5.5V
- VOUT Range: 0.5V to VIN
- Programmable Frequency to 3MHz
- Low Ripple Burst Mode® Operation with Low IQ
- Shutdown Current: 1.4µA n 35ns Minimum On-Time
- Internal Compensation
- Precision Enable, Power Good for Power Sequencing
- Tiny 30-Lead, 2.2mm × 2.7mm WLCSP Package
Typische Anwendungen
- Communications , Optical Networking
- Industrial
- Telecom Power Supplies, μP Core Supplies, Distributed DC Power Systems (POL), FPGA, ASIC
- Automotive
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | f(mm) | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR(mA) | Z @ 1 GHz(Ω) | H(mm) | Typ | Pins | Montageart | L(mm) | Arbeitsspannung(V (AC)) | Betriebstemperatur | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, 100 Ω | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-MPSB EMI Multilayer Power Suppression Bead | – | Impedanz @ 100 MHz100 Ω | Maximale Impedanz160 Ω | Maximale Impedanz1100 MHz | Nennstrom8000 mA | Impedanz @ 1 GHz150 Ω | Höhe2.3 mm | TypHochstrom | – | MontageartSMT | Länge4.5 mm | – | Betriebstemperatur -55 °C up to +125 °C | ||||
 | WA-SNSR Self-Retaining Spacer, 4.8 mm, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWA-SNSR Self-Retaining Spacer | Bohrung in Blende4.8 mm | – | – | – | – | – | – | – | – | – | Länge12.7 mm | – | Betriebstemperatur -30 °C up to +85 °C | |||
 | WR-PHD Kurzschlussbrücken, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Kurzschlussbrücken | – | – | – | – | Nennstrom3000 mA | – | – | – | Pins2 | – | – | 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 | – | – | – | – | Nennstrom2000 mA | – | – | TypGerade | Pins3 | MontageartTHT | Länge6 mm | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | Nennstrom2000 mA | – | – | TypGerade | Pins4 | MontageartTHT | Länge8 mm | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C |