 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTM4644 Datasheet(PDF) 1 Page - Linear Technology |
|
|
|||||||||||||||||||||||||||||
LTM4644 Datasheet(HTML) 1 Page - Linear Technology |
|
|
1 / 34 page  LTM4650 1 4650fb For more information www.linear.com/LTM4650 TYPICAL APPLICATION DESCRIPTION Dual 25A or Single 50A DC/DC µModule Regulator The LTM®4650 is a dual 25A or single 50A output switch- ing mode step-down DC/DC µModule® (power module) regulator. Included in the package are the switching controllers, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 15V, the LTM4650 supports two outputs each with an output voltage range of 0.6V to 1.8V, each set by a single external resistor. Its high efficiency design delivers up to 25A continuous current for each output. Only a few input and output capacitors are needed. The LTM4650 is pin compatible with the LTM4620 (dual 13A, single 26A) and the LTM4630 (dual 18A, single 36A). The device supports frequency synchronization, multi- phase operation, Burst Mode operation and output voltage tracking for supply rail sequencing and has an onboard temperaturediodefordevicetemperaturemonitoring.High switchingfrequencyandacurrentmodearchitectureenable a very fast transient response to line and load changes without sacrificing stability. Fault protection features include overvoltage and overcurrent protection. The LTM4650 is offered in a 16mm × 16mm × 5.01mm BGA package. FEATURES APPLICATIONS n Dual 25A or Single 50A Output n Input Voltage Range: 4.5V to 15V n Output Voltage Range: 0.6V to 1.8V n ±1.5% Maximum Total DC Output Error Over Line, Load and Temperature n Differential Remote Sense Amplifier n Current Mode Control/Fast Transient Response n Adjustable Switching Frequency n Frequency Synchronization n Overcurrent Foldback Protection n Multiphase Parallel Current Sharing with Multiple LTM4650s Up to 300A n Internal Temperature Monitor n Pin Compatible with the LTM4620 (Dual 13A, Single 26A) and LTM4630 (Dual 18A, Single 36A) n Selectable Burst Mode® Operation n Soft-Start/Voltage Tracking n Output Overvoltage Protection n 16mm × 16mm × 5.01mm BGA Package n Processor, ASIC and FPGA Core Power n Telecom and Networking Equipment n Storage and ATCA Cards n Industrial Equipment L , LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode and PolyPhase are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 6304066 and 6580258. Other patents pending. 50A, 1.2V Output DC/DC µModule Regulator 1.2VOUT Efficiency vs IOUT LOAD CURRENT (A) 0 10 20 30 40 50 65 70 75 80 85 90 95 4650 TA01b VIN = 5V VIN = 12V fSW = 500KHz * 4650 TA01a LTM4650 VIN 220µF CERAMIC 4V ×8 470pF VOUT1 VFB1 VFB2 VOUTS2 COMP2 VOUT2 1.2V 50A MODE_PLLIN SGND PHASMD GND COMP1 VOUT2 DIFFP DIFFN DIFFOUT 60.4k 121k VIN 4.5V TO 15V 120k 0.1µF 22µF 25V ×4 4.7µF TEMP RUN1 RUN2 TRACK1 TRACK2 INTVCC PGOOD1 PGOOD2 fSET PINS NOT USED IN THIS CIRCUIT: CLKOUT EXTVCC SW1 SW2 VOUTS1 10k |
Similar Part No. - LTM4644 |
|
Similar Description - LTM4644 |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
