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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-15.5 V |
| Switching frequency | 250-2000 kHz |
| IC revision | C |
Description
Wide input voltage range: 4.5 V to 15.5 V±1.5% output accuracy over full temperature range250 kHz to 2 MHz adjustable switching frequency withindividual ½× frequency optionPower regulationChannel 1 and Channel 2Programmable 2 A/4 A/6 A sync buck regulators withlow-side FET driversChannel 3 and Channel 4: 2.5 A sync buck regulatorsFlexible parallel operationSingle 12 A output (Channel 1 and Channel 2 in parallel)Single 5 A output (Channel 3 and Channel 4 in parallel)Low 1/f noise density40 μV rms at 0.8 VREF for 10 Hz to 100 kHzPrecision enable with 0.811 V accurate thresholdActive output discharge switchFPWM/PSM mode selectionFrequency synchronization input or outputPower-good flag for Channel 1 outputUVLO, OCP, and TSD protection48-lead, 7 mm × 7 mm LFCSP
Features
Wide input voltage range: 4.5 V to 15.5 V±1.5% output accuracy over full temperature range250 kHz to 2 MHz adjustable switching frequency withindividual ½× frequency optionPower regulationChannel 1 and Channel 2Programmable 2 A/4 A/6 A sync buck regulators withlow-side FET driversChannel 3 and Channel 4: 2.5 A sync buck regulatorsFlexible parallel operationSingle 12 A output (Channel 1 and Channel 2 in parallel)Single 5 A output (Channel 3 and Channel 4 in parallel)Low 1/f noise density40 μV rms at 0.8 VREF for 10 Hz to 100 kHzPrecision enable with 0.811 V accurate thresholdActive output discharge switchFPWM/PSM mode selectionFrequency synchronization input or outputPower-good flag for Channel 1 outputUVLO, OCP, and TSD protection48-lead, 7 mm × 7 mm LFCSP−40°C to +125°C operational junctional temperature range
Typical applications
- FPGA and processor applications
- Medical applications
- ,Small cell base stations
- Security and surveillance
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 0.76 µH, 22.9 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance0.76 µH | Performance Rated Current22.9 A | Saturation Current @ 10%8 A | Saturation Current @ 30%15 A | DC Resistance2.25 mΩ | Self Resonant Frequency200 MHz | MaterialSuperflux | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 1.1 µH, 19.6 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance1.1 µH | Performance Rated Current19.6 A | Saturation Current @ 10%6 A | Saturation Current @ 30%13 A | DC Resistance3.15 mΩ | Self Resonant Frequency135 MHz | MaterialSuperflux | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 2 µH, 13.8 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance2 µH | Performance Rated Current13.8 A | Saturation Current @ 10%4.5 A | Saturation Current @ 30%9 A | DC Resistance5.85 mΩ | Self Resonant Frequency68 MHz | MaterialSuperflux |