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PI3318-21 Datasheet Preview

PI3318-21 Datasheet

ZVS Switching Regulators

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Cool-Power®
ZVS Switching Regulators
PI33xx-x1
8V to 36VIN, 15A Cool-Power ZVS Buck Regulator
Product 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
Output Voltage
Set Range
PI3311-x1-LGIZ 1.0V
1.0 to 1.4V
PI3318-x1-LGIZ 1.8V
1.4 to 2.0V
PI3312-x1-LGIZ 2.5V
2.0 to 3.1V
PI3301-x1-LGIZ 3.3V
2.3 to 4.1V
Table 1 – PI33xx-x1 portfolio
IOUT Max
15A
15A
15A
15A
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 & Benefits
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 / Undervoltage Lockout (OVLO/UVLO)
Output Overvoltage Protection (OVP)
Overtemperature Protection (OTP)
Fast and slow current limits
-40°C to 125°C operating range (TJ)
Optional I2C* functionality & programmability:
nnVOUT margining
nnFault reporting
nnEnable and SYNCI pin polarity
nnPhase 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
Cool-Power® ZVS Switching Regulators
Page 1 of 27
Rev 1.4
11/2016




VICOR

PI3318-21 Datasheet Preview

PI3318-21 Datasheet

ZVS Switching Regulators

No Preview Available !

Contents
Order Information
3
Absolute Maximum Ratings
4
Functional Block Diagram
4
Pin Description
5
Package Pin-Out
5
PI3311-x1-LGIZ (1.0VOUT) Electrical Characteristics
PI3318-x1-LGIZ (1.8VOUT) Electrical Characteristics
PI3312-x1-LGIZ (2.5VOUT) Electrical Characteristics
PI3301-x1-LGIZ (3.3VOUT) Electrical Characteristics
Functional Description
6
9
12
15
18
ENABLE (EN)
18
Remote Sensing
18
Switching Frequency Synchronization
18
Soft-Start 18
Output Voltage Trim
18
Output Current Limit Protection
19
Input Undervoltage Lockout
19
Input Overvoltage Lockout
19
Output Overvoltage Protection
19
Overtemperature Protection
19
Pulse Skip Mode (PSM)
19
Variable Frequency Operation
19
Parallel Operation
20
I2C Interface Operation
20
PI33xx-x1
Application Description
Output Voltage Trim
Soft-Start Adjust and Tracking
Inductor Pairing
Layout Guidelines
Recommended PCB Footprint and Stencil
LGIZ Package Drawing
Revision History
Product Warranty
21
21
22
22
23
24
25
26
27
Cool-Power® ZVS Switching Regulators
Page 2 of 27
Rev 1.4
11/2016


Part Number PI3318-21
Description ZVS Switching Regulators
Maker VICOR
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