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ZVS Buck Regulators- VICHIP Picor Cool-Power PI33 /PI34 /PI35xx Series

Features
  • ZVS Buck Regulators
  • Wide Input Operating Ranges
  • Simple to Use; Fast Development Time
  • High Efficiency >95%
  • Flexible and Rich Feature Set
  • Paralleling and single wire current sharing
  • Frequency synchronization
  • User adjustable soft-start & tracking
  • High Density Packaging Platform

PI33 /PI34 /PI35xx Series

Product Overview

 

PI33/PI34/PI35xx Series 

PICOR Cool-Power ZVS Buck Regulators 

48, 24 and 12V to PoL Buck Regulator Applications, Computing, Communications, Industrial, Automotive Equipment. Constant current applications: LED Lighting and Battery Charging

PI33/PI35/PI35xx Cool-Power ZVS Buck Regulators offer broad-level designers maximum power density and flexablilty for high-efficiency load DC-DC regulation. The integration of a high performance Zero-Voltage Switching (ZVS) topology increases pont-to-load performance, providing best-in-class power efficiency up to 98%. Cool-PowerZVS Regulatorsare highly intergrated with control circitry. power semiconductors and support components in a high density LGA System in Package (SiP).

Power delivery can be further increased by inter-leaving multiple buck regulators using single wire current sharing. Use of a ZVS topology enables high-frequency operation that maximizes efficiency by minimizing the significant switching losses associated with conventional buck regulators using hard-switching topologies. The high switching frequency of the Cool-Power ZVS Regulators also reduces the size of the filtering components, improving power density while enabling fast dynamic response to line and load transients. These regulators sustain high switching frequency all the way up to the rated input voltage without sacrificing efficiency and, with its 20 ns minimum on-time, supports step down conversion for input voltages up to 60V. The Cool-Power ZVS series offers buck regulators for 12 VIN, 24 VIN, and 48 VIN nominal systems. Packaging of the bucks is either in a 10 x 10 x 2.5 mm or 10 x 14 x 2.5 mm LGA package. All devices within their respective series share the same footprint.

Specifications

GENERAL
Input Voltage

12 V nominal (8 to 18 V)

24 V nominal (8 to 36 V)

48 V nominal (30 to 60 V)

Output Voltage Wide output range (1 – 16 V)
Output Current 10, 15 and up to 22 Amps
Efficiency

Up to 98%

Light load and full load

high efficiency performance

Dimensions

LGA SiP :

10 x 14 x 2.56 mm

10 x 10 x 2.56 mm

BGA SiP :

10.5 x 14.5 x 3.05 mm

Selection Table

MODEL NUMBER

INPUT VOLTAGE

Range (V) 

OUTPUT VOLTAGE

Set (V)

OUTPUT VOLTAGE

Range (V)

OUTPUT CURRENT

Max (A)

Input: 12V (8 - 18Vin)        
PI3420-00-LGIZ  12 (8 – 18)V 1.0V 1.0  – 1.4V 15A
PI3421-00-LGIZ  12 (8 – 18)V 1.8V 1.4 – 2.0V 15A
PI3422-00-LGIZ 12 (8 – 18)V 2.5V 2.0 – 3.1V 15A
PI3423-00-LGIZ  12 (8 – 18)V 3.3V 2.3 – 4.1V 15A
PI3424-00-LGIZ  12 (8 – 18)V 5.0V 3.3 – 6.5V 15A
Input: 24V (8 - 36Vin)        
PI3311-00-LGIZ  24 (8 – 36)V 1.0V 1.0 – 1.4V 10A
PI3318-00-LGIZ  24 (8 – 36)V 1.8V 1.4 – 2.0V 10A
PI3312-00-LGIZ  24 (8 – 36)V 2.5V 2.0 – 3.1V 10A
PI3301-00-LGIZ  24 (8 – 36)V 3.3V 2.3 – 4.1V 10A
PI3302-00-LGIZ  24 (8 – 36)V 5.0V 3.3 – 6.5V 10A
PI3303-00-LGIZ 24 (8 – 36)V 12.0V 6.5 - 13.0V  8A
 PI3305-00-LGIZ 24 (8 – 36)V 15.0V  10.0 - 16.0V  8A
24V (8 - 36Vin) High Current         
PI3311-01-LGIZ  24 (8 – 36)V 1.0V 1.0 – 1.4V 15A
PI3318-01-LGIZ  24 (8 – 36)V 1.8V 1.4 – 2.0V 15A
PI3312-01-LGIZ  24 (8 – 36)V 2.5V 2.0 – 3.1V 15A
PI3301-01-LGIZ  24 (8 – 36)V 3.3V 2.3 – 4.1V 15A
PI3302-03-LGIZ 24 (8 – 36)V 5V 3.3 - 6.5V 15A
 24Vin (8-36Vin) I2C Functionality        
PI3311-20-LGIZ  24 (8 – 36)V 1.0V 1.0 – 1.4V 10A
PI3318-20-LGIZ  24 (8 – 36)V 1.8V 1.4 – 2.0V 10A
PI3312-20-LGIZ  24 (8 – 36)V 2.5V 2.0 – 3.1V 10A
PI3301-20-LGIZ  24 (8 – 36)V 3.3V 2.3 – 4.1V 10A
PI3302-20-LGIZ  24 (8 – 36)V 5.0V 3.3 – 6.5V 10A
PI3303-20-LGIZ 24 (8 – 36)V 12.0V 6.5 – 13.0V 8A
PI3305-20-LGIZ 24 (8 – 36)V 15.0V 10.0 – 16.0V 8A
PI3311-21-LGIZ  24 (8 – 36)V 1.0V 1.0 – 1.4V 15A
PI3318-21-LGIZ  24 (8 – 36)V 1.8V 1.4 – 2.0V 15A
PI3312-21-LGIZ  24 (8 – 36)V 2.5V 2.0V - 3.1V 15A
PI3301-21-LGIZ  24 (8 – 36)V 3.3V 2.3 – 4.1V 15A
48V (30-60Vin)        
PI3525-00-LGIZ 48 (36 – 60)V 5.0V 4.0 - 6.5V 20A
48V (30-60Vin)        
PI3542-00-LGIZ  48 (36 – 60)V 2.5V 2.2 – 3.0V 10A
PI3543-00-LGIZ  48 (36 – 60)V 3.3V 2.6 – 3.6V 10A
PI3545-00-LGIZ  48 (36 – 60)V 5.0V 4.0 – 5.5V 10A
PI3546-00-LGIZ  48 (36 – 60)V 12.0V 6.5 – 14.0V 9A

Technical Illustration

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