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PI33XX‐X0‐LGIZ Cool‐Power®
8V to 36Vin Cool‐Power® ZVS Buck Regulator Family
Description
The PI33XX 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 series, increases point of load performance providing best in class power efficiency. The PI33XX requires only an external inductor and minimal capacitors to form a complete DC‐DC switching mode buck regulator.
Device
Output Voltage Set Range
Iout Max
PI3311‐X0‐LGIZ 1.0V 1.00 to 1.4
10A
PI3312‐X0‐LGIZ 2.5V 2.0 to 3.1
10A
PI3301‐X0‐LGIZ 3.3V 2.3 to 4.1
10A
PI3302‐X0‐LGIZ 5.0V 3.3 to 6.5
10A
PI3303‐X0‐LGIZ 12V 6.5 to 13.0
8A
PI3305‐X0‐LGIZ 15V 10.0 to 16.0
8A
Table 1 ‐ PI33XX Portfolio. Additional versions available for higher 18A current, output voltages (Vout) of 1.5 to 1.9V, and Vout >15.
Features
High efficiency up to 98% 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 (for interleaving multiple
regulators)
Applications
High efficiency systems Computing, Communications, Industrial,
Automotive Equipment High voltage battery operation
The Zero Voltage Switching (ZVS) architecture also enables high frequency operation while minimizing
Package Information 10mm x 14mm x 2.6mm LGA SiP
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 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.
Picor Corporation • picorpower.com PI33XX‐X0‐LGIZ Family Datasheet Rev 1.2 August 24, 2012
I2C is a trademark of NXP Semiconductors
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Contents
Order Information ............................................... 3 PI33XX.