Cool-Power®
PI34xx-00
8 V to 18 Vin, 15 A Cool-Power ZVS Buck Regulator
Product Description
The PI34xx-00 is a family of high efficiency DC-DC ZVS-Buck
regulators integrating the controller, power switches and
support components within a high density
System-in-Package (SiP).
The PI34xx-00 is designed to achieve optimum efficiency at
low input voltage ranges (8 V to 18 V). The utilization of zero
current soft turn-on provided by the high performance ZVS
topology within the PI34xx-00 series increases point of load
performance, providing best in class power efficiency with
high throughput power.
The PI34xx-00 requires only an external inductor and
minimal capacitors to form a complete DC-DC switching
mode buck regulator.
Device
PI3420-00-LGIZ
PI3421-00-LGIZ
PI3422-00-LGIZ
PI3423-00-LGIZ
PI3424-00-LGIZ
Output Voltage
Set Range
1.0 V
1.0 V to 1.4 V
1.8 V
1.4 V to 2.0 V
2.5 V
2.0 V to 3.1 V
3.3 V
2.3 V to 4.1 V
5.0 V
3.3 V to 6.5 V
IOUT Max
15 A
15 A
15 A
15 A
15 A
The ZVS architecture 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 ZVS architecture enables operation up to 750 kHz while
minimizing switching losses and the use of variable frequency
extends high efficiency over a very wide dynamic range. The
PI34xx-00 series has a minimum on time of 20ns which
enables large step down conversion ratios.
Features & Benefits
• High Efficiency ZVS-Buck Topology
• Input voltage range of 8 V to 18 V
• Very-Fast transient response
• Power-up into pre-biased load
• High accuracy pre-trimmed output voltage
• User adjustable soft-start & tracking
• 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)
Applications
• High efficiency systems
• Computing, Communications, Industrial,
Automotive Equipment
Package Information
• 10 mm x 14 mm x 2.6 mm LGA SiP
Cool-Power®
Page 1 of 30
Rev 1.3
12/2015
vicorpower.com
800 927.9474
