ZVS Regulators: Buck　PI33/PI34/PI35xx Series

PI33/PI34/PI35xx Series ZVS Regulators: Buck 48, 24 and 12V to PoL Buck Regulator Applications, Computing, Communications, Industrial, Automotive Equipment. Constant current applications: LED Lighting and Battery Charging. Description Features & Benefits PI33/PI34/PI35xx ZVS Buck Regulators offer board‑level designers • Wide Input Operating Ranges maximum power density and flexibility for high‑efficiency ■■12VIN nominal (8 – 18VIN) point‑of‑load DC‑DC regulation. The integration of a ■■24V nominal (8 – 36V ) high‑performance Zero‑Voltage Switching (ZVS) topology increases IN IN point‑of‑load performance, providing best‑in‑class power efficiency ■■48VIN nominal (30 – 60VIN) up to 98%. ZVS Regulators are highly integrated with control ■■–40 to 125°C temperature operating range circuitry, power semiconductors and support components in a • Simple to Use; Fast Development Time high‑density LGA, BGA and GQFN System‑in‑Package (SiP). ■■Internal compensation - few external components Power delivery can be further increased by inter‑leaving multiple ■■No additional design or additional settings required buck regulators using single wire current sharing. The ZVS topology enables high‑frequency operation maximizing efficiency • High Efficiency by minimizing the significant switching losses associated with conventional hard‑switching buck regulators. The high switching ■■>96% peak 48VIN to 12VOUT frequency of the ZVS Regulators reduces the size of the external ■■>96% peak 24VIN to 12VOUT filtering components, improving power density while enabling ■■>95% peak 12VIN to 5VOUT fast line and load dynamic response. These regulators maintain ■■Light-load and full-load high-efficiency performance high switching frequency all the way up to the rated input voltage without sacrificing efficiency and, with its 20ns minimum on‑time, • Flexible and Rich Feature Set supports step‑down conversion for input voltages up to 60V. ■■Paralleling and single wire current sharing The ZVS series offers buck regulators for 12VIN, 24VIN and 48VIN ■■Frequency synchronization nominal systems. All devices within their respective series share the ■■User adjustable soft-start & tracking same footprint. ■■PI33xx optional I2C™ telemetry & functionality n■VOUT margining n■Fault reporting n■Enable and SYNCI pin polarity n■Phase delay (for interleaving multiple regulators) • High-Density Packaging Platforms ■■10 x 14 x 2.5mm SiP LGA ■■10.5 x 14.5 x 3.05mm BGA ■■10 x 10 x 2.5mm SiP LGA ■■10.5 x 10.5 x 3.05mm BGA ■■7 x 8 x 0.85mm GQFN Example Power Chain Total Area (With Required Components) L1 V V VS1IN IN VOUT Array of 2 10mm ZVS Buck C ZVS Buck IN C Regulator PGND PI33xx V OUT OUT 19mm REM ZVS 12V SYNCI TRK Buck SYNCO ADJ EN Inductor EAO 380VDC 48VBCM 14mm ZVS 5V Buck Required Components and General Dimensions ZVS Buck Regulator Schematic with minimum required with required components and external components general dimensions vicorpower.com Rev 2.5 02/2019 SGND

PI34xx Efficiency (5VOUT) Part Numbers 100 Output Range 95 Part Number RatingSet Range 90 85 12V (8 – 18VIN) 80 PI3420‑00‑LGIZ 1.0V 1.0 – 1.4V 15A 75 PI3421‑00‑LGIZ 1.8V 1.4 – 2.0V 15A 70 PI3422‑00‑LGIZ 2.5V 2.0 – 3.1V 15A 65 60 PI3423‑00‑LGIZ 3.3V 2.3 – 4.1V 15A 55 PI3424‑00‑LGIZ 5.0V 3.3 – 6.5V 15A 50 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 24V (8 – 36V 2 IN) I C™ Functionality Output Current (A) PI3311‑x0‑LGIZ 1.0V 1.0 – 1.4V 10A VIN: 8V 12V 18V PI3311‑x1‑LGIZ 1.0V 1.0 – 1.4V 15A PI3318‑x0‑LGIZ 1.8V 1.4 – 2.0V 10A PI3318‑x1‑LGIZ 1.8V 1.4 – 2.0V 15A PI3312‑x0‑LGIZ 2.5V 2.0 – 3.1V 10A PI33xx Efficiency (12VOUT) PI3312‑x1‑LGIZ 2.5V 2.0 – 3.1V 15A PI3301‑x0‑LGIZ 3.3V 2.3 – 4.1V 10A 100 PI3301‑x1‑LGIZ 3.3V 2.3 – 4.1V 15A 95 PI3302‑x0‑LGIZ 5.0V 3.3 – 6.5V 10A 90 85 PI3302‑00‑BGIZ 5.0V 3.3 – 6.5V 10A 80 PI3302‑03‑LGIZ [a] 5V 3.3 – 6.5V 15A 75 PI3325‑00‑LGIZ 5.0V 4.0 – 6.5V 20A 70 PI3303‑x0‑LGIZ 12V 6.5 – 13.0V 8A 65 60 PI3305‑x0‑LGIZ 15V 10.0 – 16.0V 8A 55 48V (30 – 60VIN) 50 PI3583‑00‑QFYZ 3.3V 2.2 – 4.0V 10A 0 1 2 3 4 5 6 7 8 Load Curent (A) PI3523‑00‑LGIZ 3.3V 2.2 – 4.0V 22A V = 17.4V V = 24V V = 36V PI3585‑00‑QFYZ 5.0V 3.8 – 6.5V 10AIN IN IN PI3525‑00‑LGIZ 5.0V 4.0 – 6.5V 20A PI3586‑00‑QFYZ 12.0V 6.5 – 14V 9A PI3526‑00‑LGIZ 12.0V 6.5 – 14V 18A PI35xx Efficiency (12V ) 48V (36 – 60VIN)OUT PI3542‑00‑LGIZ 2.5V 2.2 – 3.0V 10A 98 PI3542‑00‑BGIZ 2.5V 2.2 – 3.0V 10A 97 96 PI3543‑00‑LGIZ 3.3V 2.6 – 3.6V 10A 95 PI3543‑00‑BGIZ 3.3V 2.6 – 3.6V 10A 94 PI3545‑00‑LGIZ 5.0V 4.0 – 5.5V 10A 93 PI3545‑00‑BGIZ 5.0V 4.0 – 5.5V 10A 92 PI3546‑00‑LGIZ 12.0V 6.5 – 14.0V 9A 91 PI3546‑00‑BGIZ 12.0V 6.5 – 14.0V 9A 90 [a] Input operating range is limited to 11 – 36V. 89 1.8 3.6 5.4 7.2 9 10.8 12.6 14.4 16.2 18 Load Current (A) Options: VIN: 30V 48V 60V x = 0 (Standard) x = 2 (I2C functionality & programmability) ©2019 Vicor Corporation. All rights reserved. The Vicor name is a registered trademark of Vicor Corporation. I2C™ is a trademark of NXP Semiconductors N.V. All other trademarks, product names, logos and brands are property of their respective owners. vicorpower.com Rev 2.5 02/2019 Efficiency (%) Efficiency (%) Efficiency (%)