Datasheet LTM4606 (Analog Devices)

LTM4606 Ultralow EMI 28VIN, 6A DC/DC µModule Regulator
FeaTures DescripTion
n
Complete Low EMI Switch Mode Power Supply
The LTM®4606 is a complete EN55022 Class B certified n
Wide Input Voltage Range: 4.5V to 28V
noise high voltage 6A switching mode DC/DC power supply. n
6A DC Typical, 8A Peak Output Current
Included in the package are the switching controller, power n
0.6V to 5V Output Voltage Range
FETs, inductor, and all support components. The on-board n
EN55022 Class B Certified
input filter and noise cancellation circuits achieve low noise n
Output Voltage Tracking and Margining
operation, thus effectively reducing the electromagnetic n
PLL Frequency Synchronization
interference (EMI). Operating over an input voltage range n
±1.75% Total DC Error
of 4.5V to 28V, the LTM4606 supports an output voltage n
Power Good Output
range of 0.6V to 5V, set by a single resistor. This high ef- n
Current Foldback Protection (Disabled at Start-Up)
ficiency design delivers 6A continuous current (8A peak). n Only bulk input and output capacitors are needed to finish
Parallel/Current Sharing
n the design. Current Mode Control n Up to 93% Efficiency at 5VIN, 3.3VOUT High switching frequency and an adaptive on-time current n Programmable Soft-Start mode architecture enables a very fast transient response n Output Overvoltage Protection to line and load changes without sacrificing stability. The n –55°C to 125°C Operating Temperature Range device supports output voltage tracking and output volt- (LTM4606MP) age margining. n SnPb or RoHS Compliant Finish Furthermore, the µModule® regulator can be synchronized n 15mm × 15mm × 2.82mm LGA Package with an external clock for reducing undesirable frequency 15mm × 15mm × 3.42mm BGA Package harmonics and allows PolyPhase® operation for high load currents.
applicaTions
The LTM4606 is offered in space saving 15mm × 15mm × n ASICs or FPGA Transceivers 2.82mm LGA and 15mm × 15mm × 3.42mm BGA pack- n ages. The LTM4606 is available with SnPb (BGA) or RoHS Telecom, Servers and Networking Equipment n compliant terminal finish. Industrial Equipment n RF Equipment L, LT, LTC, LTM, µModule, PolyPhase, Linear Technology, the Linear logo are registered trademarks and UltraFast and LTpowerCAD are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 5847554, 6304066, 6476589, 6580258, 6677210, 6774611, 8163643.
Typical applicaTion Radiated Emission Scan at 12VIN, 2.5VOUT/6A Ultralow Noise 2.5V/6A Power Supply with 4.5V to 28V Input
50 40 4.5V TO 28V CLOCK SYNC V/m) 30 VIN PLLIN 2.5V AT 6A PGOOD V 20 OUT ON/OFF RUN LTM4606 47pF C 10 COMP V OUT FB C R IN INTV FB 0 CC 10µF 19.1k DRV 35V CC FCB –10 CERAMIC fSET MARG0 MARGIN TRACK/SS x2 SIGNAL AMPLITUDE (dBµ TRACK/SS MARG1 CONTROL –20 CONTROL VD MPGM –30 10µF SGND PGND 392k 5% MARGIN 35V 30 226.2 422.4 618.6 814.8 1010 128.1 324.3 520.5 716.7 912.9 4606 TA01a FREQUENCY (MHz) 4606 TA01b 4606fd For more information www.linear.com/LTM4606 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photograph Related Parts