Datasheet LTM4613 (Analog Devices)

LTM4613 EN55022B Compliant 36VIN, 15VOUT, 8A, DC/DC µModule Regulator
FEATURES DESCRIPTION
n
Complete Low EMI Switch Mode Power Supply
The LTM®4613 is a complete, ultralow noise, 8A switch n
EN55022 Class B Compliant
mode DC/DC power supply. Included in the package are the n
Wide Input Voltage Range: 5V to 36V
switching controller, power FETs, inductor and all support n
8A Output Current
components. Operating over an input voltage range of 5V n
3.3V to 15V Output Voltage Range
to 36V, the LTM4613 supports an output voltage range of n
Low Input and Output Referred Noise
3.3V to 15V, set by a single external resistor. Only bulk n
Output Voltage Tracking and Margining
input and output capacitors are needed to finish the design. n
PLL Frequency Synchronization
High switching frequency and an adaptive on-time current n
2% Maximum Total DC Error
mode architecture enables a very fast transient response n
Power Good Tracks with Margining
to line and load changes without sacrificing stability. n
Current Foldback Protection
n
Parallel/Current Sharing
The onboard input filter and noise cancellation circuits n Ultrafast Transient Response achieve low noise coupling, thus effectively reducing n Current Mode Control the electromagnetic interference (EMI)—see Figure 7. n Programmable Soft-Start Furthermore, the DC/DC µModule® regulator can be syn- n Output Overvoltage Protection chronized with an external clock to reduce undesirable n –55°C to 125°C Operating Temperature Range frequency harmonics and allow PolyPhase® operation for (LTM4613MPV, LTM4613MPY) high load currents. n 15mm × 15mm × 4.32mm LGA and The LTM4613 is offered in 15mm × 15mm × 4.32mm 15mm × 15mm × 4.92mm BGA Packages LGA and 15mm × 15mm × 4.92mm BGA packages. The n SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish LTM4613 is available with SnPb (BGA) or RoHS compli-
APPLICATIONS
ant terminal finish. L, LT, LTC, LTM, µModule, PolyPhase, Linear Technology, and the Linear logo are registered n Telecom and Networking Equipment trademarks and LTpowerCAD is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Industrial and Avionic Equipment n RF Systems
TYPICAL APPLICATION Radiated Emission Scan with 24VIN to 12VOUT at 8A 12V/8A Ultralow Noise µModule with 24V to 36V Input
70 VIN CLOCK SYNC 24V 60 TO 36V 51k V /m) IN PLLIN VOUT 50 PGOOD VOUT 12V RUN LTM4613 22pF 8A 40 EN55022B LIMIT C COMP V OUT FB 30 INTVCC 5.23k CIN DRVCC FCB 20 fSET MARG0 MARGIN TRACK/SS MARG1 CONTROL 10 0.1µF VD MPGM SIGNAL AMPLITUDE (dB uV 10µF 392k 0 × 3 SGND PGND 5% MARGIN –1030 226.2 422.4 613.6 814.3 1010.0 4613 TA01 FREQUENCY (MHz) 4613 TA01b 4613fd For more information www.linear.com/LTM4613 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Photograph Related Parts