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Analog Devices LTC3314A | Demoboard DC3205A
3.3V to 1V 8A, 2MHz Dual-Phase Low Ripple Step-Down DC/DC Regulator
Overview
| Topology | Buck Converter |
| Input voltage | 2.25-5.5 V |
| Switching frequency | 1800-2200 kHz |
| Output 1 | 1.02 V / 8 A |
Description
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.
Features
- 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
Typical applications
- Industrial
- Communications , Optical Networking
- Telecom Power Supplies, μP Core Supplies, Distributed DC Power Systems (POL), FPGA, ASIC
- Automotive
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (mm) | f (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Pins (Value) (pcs) | Rows | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74279226101 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MPSB EMI Multilayer Power Suppression Bead | 4.5 | – | 100 | 160 | 1100 MHz | 8000 | 150 | 2.3 | High Current | – | – | – | – | ||
 | 62000311121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 6 | – | – | – | – | 2000 | – | – | Straight | 3 | Single | Pin Header | Bag | |
 | 62000411121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 8 | – | – | – | – | 2000 | – | – | Straight | 4 | Single | Pin Header | Bag | |
 | 702935000 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WA-SNSR Self-Retaining Spacer | 12.7 | 4.8 | – | – | – | – | – | – | – | – | – | – | – | |
 | 60800213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | – | 3000 | – | – | – | 2 | – | Jumper | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74279226101 | SPEC | |
| 62000311121 | SPEC | – |
| 62000411121 | SPEC | – |
| 702935000 | SPEC | – |
| 60800213421 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (mm) | f (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Pins (Value) (pcs) | Rows | Gender | Packaging | Samples |
|---|