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PI3318-X1-LGIZ Datasheet

15A Cool-Power ZVS Buck Regulator

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Cool-Power®
PI33XX-X1
8V to 36Vin, 15A Cool-Power ZVS Buck Regulator
Description
The PI33XX-X1 is a family of high efficiency, wide
input range DC-DC ZVS-Buck regulators integrating
controller, power switches, and support components
all within a high density System-in-Package (SiP). The
integration of a high performance Zero-Voltage
Switching (ZVS) topology, within the PI33XX-X1 series,
increases point of load performance providing best in
class power efficiency. The PI33XX-X1 requires only
an external inductor and minimal capacitors to form a
complete DC-DC switching mode buck regulator.
Device
PI3311-X1-LGIZ
PI3318-X1-LGIZ
PI3312-X1-LGIZ
PI3301-X1-LGIZ
Output Voltage
Set Range
1.0V 1.0 to 1.4V
1.8V 1.4 to 2.0V
2.5V 2.0 to 3.1V
3.3V 2.3 to 4.1V
Iout Max
15A
15A
15A
15A
Table 1 - PI33XX-X1-X1 Portfolio.
The ZVS architecture also enables high frequency
operation while minimizing switching losses and
maximizing efficiency. The high switching frequency
operation reduces the size of the external filtering
components, improves power density, and enables
very fast dynamic response to line and load
transients. The PI33XX-X1 series sustains high
switching frequency all the way up to the rated input
voltage without sacrificing efficiency and, with its
20ns minimum on-time, supports large step down
conversions up to 36Vin.
Features
High Efficiency ZVS-Buck Topology
Wide input voltage range of 8V to 36V
Very-Fast transient response
High accuracy pre-trimmed output voltage
User adjustable soft-start & tracking
Power-up into pre-biased load (select versions)
Parallel capable with single wire current sharing
Input Over/Under Voltage Lockout (OVLO/UVLO)
Output Overvoltage Protection (OVP)
Over Temperature Protection (OTP)
Fast and slow current limits
-40°C to 125°C operating range (TJ)
Optional I2C functionality & programmability:
Vout margining
Fault reporting
Enable and SYNCI pin polarity
Phase delay (interleaving multiple regulators)
Applications
High efficiency systems
Computing, Communications, Industrial,
Automotive Equipment
High voltage battery operation
Package Information
10mm x 14mm x 2.6mm LGA SiP
I2C is a trademark of NXP Semiconductors
vicorpower.com
800 735.6200
Rev 1.3
09/2015
Cool-Power®
Page 1 of 26




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PI3318-X1-LGIZ Datasheet Preview

PI3318-X1-LGIZ Datasheet

15A Cool-Power ZVS Buck Regulator

No Preview Available !

PI33XX-X1
Contents
Order Information ...................................................... 3
Absolute Maximum Ratings........................................ 4
Block Diagram............................................................. 4
Pin Description............................................................ 5
Package Pin-Out.......................................................... 5
PI3311-X1 (1.0 Vout) Electrical Characteristics........... 6
PI3318-X1 (1.8 Vout) Electrical Characteristics........... 9
PI3312-X1 (2.5 Vout) Electrical Characteristics......... 12
PI3301-X1 (3.3 Vout) Electrical Characteristics......... 15
Functional Description.............................................. 18
ENABLE (EN) .......................................................18
Remote Sensing ..................................................18
Switching Frequency Synchronization................18
Soft-Start ............................................................18
Output Voltage Trim...........................................18
Output Current Limit Protection ........................19
Input Under-Voltage Lockout .............................19
Input Over Voltage Lockout................................19
Output Over Voltage Protection.........................19
Over Temperature Protection ............................19
Pulse Skip Mode (PSM).......................................19
Variable Frequency Operation ...........................20
Parallel Operation...............................................20
I2C Interface Operation...................................... 20
Application Description.............................................21
Output Voltage Trim .......................................... 21
Soft-Start Adjust and Tracking ........................... 22
Inductor Pairing ................................................. 22
Layout Guidelines......................................................23
Recommended PCB Footprint and Stencil ................24
Package Drawings .....................................................25
Warranty ...................................................................26
vicorpower.com
800 735.6200
Rev 1.3
09/2015
Cool-Power®
Page 2 of 26


Part Number PI3318-X1-LGIZ
Description 15A Cool-Power ZVS Buck Regulator
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