PI3749-00-EVAL1 Datasheet, PDF (1/26 Pages) Vicor Corporation – Cool-Power® ZVS Switching Regulators

Cool-Power^®
ZVS Switching Regulators
PI3749-x0
16V to 34V_IN, 12V to 28V_OUT, 240W Cool-Power ZVS Buck-Boost
Product Description
The PI3749-x0 is high efficiency, wide range DC-DC ZVS
Buck‑Boost regulator. This high density System-in-Package (SiP)
integrates controller, power switches, and support components.
The integration of a high performance Zero-Voltage Switching
(ZVS) topology, within the PI3749-x0, increases point of load
performance providing best in class power efficiency. The
PI3749-x0 requires an external inductor, resistive feedback divider
and minimal capacitors to form a complete DC-DC switching
mode buck-boost regulator.
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.
Typical Application
Features & Benefits
• Up to 98.5% efficiency at 800kHz F_SW
• Up to 240W of continuous output power
(for specific conditions)
• Fast transient response
• Parallel capable with single wire current sharing
• External frequency synchronization / interleaving
• High Side Current Sense Amplifier
• General Purpose Amplifier
• Input Over/Undervoltage Lockout (OVLO/UVLO)
• Output Overvoltage Protection (OVP)
• Overtemperature Protection (OTP)
• Fast and slow current limits
• -40°C to 115°C operating range (T_J)
• Excellent light load efficiency
• Optional I²C™ * functionality & programmability:
■■V_OUT margining
■■Fault reporting
■■Enable and SYNCI pin polarity
Applications
• Computing, Communications, Industrial
• Variable output step up/down voltage regulation
Package Information
• 10mm x 14mm x 2.56mm LGA SiP
L1
V_IN
VIN
C_IN
PGND
VS1
VS2
VOUT
PGND
ISP
C_OUT
VDR
PGD
EN
SYNCO
PI3749-00
SYNCI
TRK
SGND
ISN
IMON
VSN
VSP
VDIFF
EAIN
EAO
COMP
V_OUT
R1
R2
99
98
97
96
95
94
93
92
91
15
20
25
30
V_IN (V)
Efficiency
Power Dissipation
5
4.5
4
3.5
3
2.5
2
1.5
1
35
* I²C™ is a trademark of NXP semiconductor
Cool-Power^® ZVS Switching Regulators
Page 1 of 26
Rev 1.8
03/2017
vicorpower.com
800 927.9474