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Overview
| Topology | Boost Converter |
| Input voltage | 2.5-4.5 V |
| Output 1 | 6 V / 5 A |
Description
The EVAL-LT8349-BZ evaluation board provides a proven design to evaluate the LT8349, 2-Phase low IQ, synchronous boost converter. The application circuit is configured to demonstrate optimum performance and component size. Using the board layout example, optimized for conducted, radiated EMI, and thermal performance, will help ensure the designer sees similar performance in their system.The evaluation board is configured to run at 2MHz per phase with a 6V output voltage from an input voltage range of 2.5V to 4.5V and deliver up to 5A load current when VIN is 4.5V.
Features
- Input Voltage Range: 2.5V to 4.5V
- 6V Output Voltage
- Up to 5A Load Current at 4.5V input voltage
- 2MHz (per phase) Switching Frequency
- High 97.1% Efficiency (VIN = 4.5V, IOUT = 1A)
- Enable/UVLO Input, Resistor-Programmable UVLO Threshold
- Selectable Mode of operation
- Selectable Burst Mode Peak Current (IPK_BURST) levels for optimization of performance
- External Frequency Synchronization
- External Compensation
- Overtemperature Protection
- Proven Printed Circuit Board (PCB) Layout
- Fully Assembled and Tested
- Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions
Typical applications
- Handheld and Industrial Power Supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(A) | Z @ 1 GHz(Ω) | H(mm) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 0.47 µH, 7.55 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance0.47 µH | Performance Rated Current7.55 A | Saturation Current @ 30%9.8 A | DC Resistance18 mΩ | Self Resonant Frequency99 MHz | Operating Voltage80 V | MountSMT | – | – | – | Rated Current4.8 A | – | Height2 mm | – | ||||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | DC Resistance4.5 mΩ | – | – | MountSMT | Impedance @ 100 MHz100 Ω | Maximum Impedance160 Ω | Maximum Impedance1100 MHz | Rated Current8 A | Impedance @ 1 GHz150 Ω | Height2.3 mm | TypeHigh Current |