Datasheet LTM4671 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | Quad DC/DC µModule Regulator with Configurable Dual 12A, Dual 5A Output Array |
| Páginas / Página | 36 / 1 — FEATURES. DESCRIPTION. Quad Output Step-Down µModule® Regulator with. … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 2.0 Mb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Quad Output Step-Down µModule® Regulator with. Dual 12A and Dual 5A Output
Línea de modelo para esta hoja de datos
Versión de texto del documento
LTM4671 Quad DC/DC µModule Regulator with Configurable Dual 12A, Dual 5A Output Array
FEATURES DESCRIPTION
n
Quad Output Step-Down µModule® Regulator with
The LTM®4671 is a quad DC/DC step-down µModule
Dual 12A and Dual 5A Output
(micromodule) regulator offering dual 12A and dual 5A n
Wide Input Voltage Range: 3.1V to 20V
output. Included in the package are the switching control- n
Dual 12A DC Output from 0.6V to 3.3V
lers, power FETs, inductors and support components. n
Dual 5A DC Output from 0.6V to 5.5V
Operating over an input voltage range of 3.1V to 20V, the n
Up to 7W Power Dissipation (TA = 60°C, 200LFM,
LTM4671 supports an output voltage range of 0.6V to
No Heat Sink)
3.3V for two 12A channels and 0.6V to 5.5V for two 5A n ±1.5% Total Output Voltage Regulation channels, each set by a single external resistor. Only bulk n Dual Differential Sensing Amplifier input and output capacitors are needed. n Current Mode Control, Fast Transient Response Fault protection features include overvoltage, overcurrent n Parallelable for Higher Output Current and overtemperature protection. The LTM4671 is offered n Selectable Burst Mode® Operation in 9.5mm × 16mm × 4.72mm BGA package. n Output Voltage Tracking n Internal Temperature Sensing Diode Output
Configurable Output Array*
n External Frequency Synchronization 12A 12A 24A 24A n Overvoltage, Current and Temperature Protection 12A 12A n 9.5mm × 16mm × 4.72mm BGA Package 5A 5A 10A 10A 5A 5A
APPLICATIONS
* Note 4 n Multirail Point-of-Load Regulation All registered trademarks and trademarks are the property of their respective owners. n FPGAs, DSPs and ASICs Applications
TYPICAL APPLICATION 4V to 20V Input, 12A, 12A, 5A, 5A DC/DC Step-Down µModule Regulator 12VIN Efficiency vs Load Current
V V 100 IN IN VOUT0 VOUT0 5V TO 20V C C IN SV VOSNS0+ OUT0 1.2V/12A IN0 22µF 100µF ×4 SV VOSNS0– IN3 95 ×2 60.4k RUN0 FB0 RUN1 V 90 OUT1 V RUN2 OUT1 RUN3 VOSNS1+ C 2.5V/5A 19.1k OUT1 FB1 47µF COMP0a 85 COMP0b LTM4671 VOUT2 VOUT2 COMP1 VOSNS2+ EFFICIENCY (%) 80 C 3.3V/5A COMP2 13.3k OUT2 FB2 47µF VOUT = 1.0 COMP3a 75 V COMP3b OUT = 1.2 VOUT3 V VOUT = 2.5 VOSNS3+ C OUT3 TRACK/SS0 OUT3 1.0V/12A VOUT = 3.3 VOSNS3– 100µF ×4 TRACK/SS1 0.1μF 70 90.9k TRACK/SS2 0 2 4 6 8 10 12 0.1μF FB3 TRACK/SS3 0.1μF LOAD CURRENT (A) 0.1μF TMON GND 4671 TA01b 4671 TA01a Rev. B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Component BGA Pinout Package Description Revision History Package Photo Related Parts
FEATURES DESCRIPTION
n
Quad Output Step-Down µModule® Regulator with
The LTM®4671 is a quad DC/DC step-down µModule
Dual 12A and Dual 5A Output
(micromodule) regulator offering dual 12A and dual 5A n
Wide Input Voltage Range: 3.1V to 20V
output. Included in the package are the switching control- n
Dual 12A DC Output from 0.6V to 3.3V
lers, power FETs, inductors and support components. n
Dual 5A DC Output from 0.6V to 5.5V
Operating over an input voltage range of 3.1V to 20V, the n
Up to 7W Power Dissipation (TA = 60°C, 200LFM,
LTM4671 supports an output voltage range of 0.6V to
No Heat Sink)
3.3V for two 12A channels and 0.6V to 5.5V for two 5A n ±1.5% Total Output Voltage Regulation channels, each set by a single external resistor. Only bulk n Dual Differential Sensing Amplifier input and output capacitors are needed. n Current Mode Control, Fast Transient Response Fault protection features include overvoltage, overcurrent n Parallelable for Higher Output Current and overtemperature protection. The LTM4671 is offered n Selectable Burst Mode® Operation in 9.5mm × 16mm × 4.72mm BGA package. n Output Voltage Tracking n Internal Temperature Sensing Diode Output
Configurable Output Array*
n External Frequency Synchronization 12A 12A 24A 24A n Overvoltage, Current and Temperature Protection 12A 12A n 9.5mm × 16mm × 4.72mm BGA Package 5A 5A 10A 10A 5A 5A
APPLICATIONS
* Note 4 n Multirail Point-of-Load Regulation All registered trademarks and trademarks are the property of their respective owners. n FPGAs, DSPs and ASICs Applications
TYPICAL APPLICATION 4V to 20V Input, 12A, 12A, 5A, 5A DC/DC Step-Down µModule Regulator 12VIN Efficiency vs Load Current
V V 100 IN IN VOUT0 VOUT0 5V TO 20V C C IN SV VOSNS0+ OUT0 1.2V/12A IN0 22µF 100µF ×4 SV VOSNS0– IN3 95 ×2 60.4k RUN0 FB0 RUN1 V 90 OUT1 V RUN2 OUT1 RUN3 VOSNS1+ C 2.5V/5A 19.1k OUT1 FB1 47µF COMP0a 85 COMP0b LTM4671 VOUT2 VOUT2 COMP1 VOSNS2+ EFFICIENCY (%) 80 C 3.3V/5A COMP2 13.3k OUT2 FB2 47µF VOUT = 1.0 COMP3a 75 V COMP3b OUT = 1.2 VOUT3 V VOUT = 2.5 VOSNS3+ C OUT3 TRACK/SS0 OUT3 1.0V/12A VOUT = 3.3 VOSNS3– 100µF ×4 TRACK/SS1 0.1μF 70 90.9k TRACK/SS2 0 2 4 6 8 10 12 0.1μF FB3 TRACK/SS3 0.1μF LOAD CURRENT (A) 0.1μF TMON GND 4671 TA01b 4671 TA01a Rev. B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Component BGA Pinout Package Description Revision History Package Photo Related Parts