Preliminary Data Sheet
May 4, 2011
12A Digital Pico DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
* UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of Canadian Standards Association.
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
Document No: DS10-009 ver. 0.32
# The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF)
PDF name: PDT012A0X.pdf
Features
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)
Compatible in a Pb-free or SnPb reflow
environment (Z versions)
DOSA based
Wide Input voltage range (3Vdc-14.4Vdc)
Output voltage programmable from 0.6Vdc to
5.5Vdc via external resistor
Digital interface through the PMBus
TM # protocol
Tunable Loop
TM to op timize dynamic output
voltage response
Flexible output voltage sequencing EZ-
SEQUENCE
Power Good signal
Fixed switching frequency with capability of
external synchronization
Output overcurrent protection (non-latching)
Overtemperature protection
Remote On/Off
Ability to sink and source current
Cost efficient open frame design
Small size: 12.2 mm x 12.2 mm x 8.5 mm
(0.48 in x 0.48 in x 0.335 in)
Wide operating temperature range [-40°C to 85°C]
UL* 60950-1Recognized, CSA
C22.2 No.
60950-1-03 Certified, and VDE
0805:2001-12
(EN60950-1) Licensed
ISO** 9001 and ISO 14001 certified
manufacturing facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
Description
The 12A Digital Pico DLynx
TM power modules are non-isolated dc-dc converters that can deliver up to 12A of output
current. These modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely
regulated output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features include a digital
interface using the PMBus protocol, remote On/Off, adjustable output voltage, over current and overtemperature
protection. The PMBus interface supports a range of commands to both control and monitor the module. The
module also includes the Tunable Loop
TM feature that allows the user to optimize the dynamic response of the
converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area.
TRIM
VOUT
VS+
GND
RTUNE
CTUNE
RTrim
VIN
Co
Cin
Vout+
Vin+
ON/OFF
SEQ
MODULE
PGOOD
SMBALRT#
SIG_GND
ADDR1
RADDR0
CLK
DATA
ADDR0
VS-
RADDR1
GND
RoHS Compliant