Datasheet LTM4653 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | EN55022B Compliant 58V, 4A Step-Down DC/DC µModule Regulator |
| Páginas / Página | 32 / 1 — FEATURES. DESCRIPTION. Complete Low EMI Switch Mode Power Supply. EN55022 … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 1.5 Mb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Complete Low EMI Switch Mode Power Supply. EN55022 Class B Compliant
Versión de texto del documento
LTM4653 EN55022B Compliant 58V, 4A Step-Down DC/DC μModule Regulator
FEATURES DESCRIPTION
n
Complete Low EMI Switch Mode Power Supply
The LTM®4653 is an ultralow noise 58V, 4A DC/DC step- n
EN55022 Class B Compliant
down μModule® regulator designed to meet the radiated n
Wide Input Voltage Range: 3.1V to 58V
emissions requirements of EN55022. Conducted emis- n
Up to 4A Output Current
sion requirements can be met by adding standard filter n
Output Voltage Range: 0.5V ≤ VOUT ≤ 0.94 • VIN
components. Included in the package are the switching n
±1.67% Total DC Output Voltage Error Over Line,
controller, power MOSFETs, inductor, filters and support
Load and Temperature (–40°C to 125°C)
components. n
Parallel and Current Share with Multiple LTM4653s
Operating over an input voltage range of 3.1V to 58V, the n
Analog Output Current Indicator
LTM4653 supports an output voltage range of 0.5V to n
Programmable Input Voltage Limiting
94% of VIN, and a switching frequency range of 250kHz n Constant-Frequency Current Mode Control to 3MHz (400kHz default), each set by a single resistor. n Power Good Indicator and Programmable Soft-Start For high load currents, the LTM4653 can be paralleled in n Overcurrent/Overvoltage/Overtemperature Protection PolyPhase® operation and synchronized to an external n 15mm × 9mm × 5.01mm BGA Package clock. Only the bulk input and output filter capacitors are
APPLICATIONS
needed to finish the design. The LTM4653 is offered in a 15mm × 9mm × 5.01mm n Avionics, Industrial Control and Test Equipment BGA package with SnPb or RoHS compliant terminal finish. n Video, Imaging and Instrumentation n 48V Telecom and Network Power Supplies All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5847554, 6580258. n RF Systems
TYPICAL APPLICATION 4A, 24V Output Low EMI DC/DC μModule Regulator Radiated Emission Scan in a 10m Chamber with Analog Output Current Indicator LTM4653 Delivering 24VOUT at 3.5A, from 48VIN
IOUT 70 VIN 24V V OUT, MEAS DIST 10m 28V TO 58V IN VOUT UP TO 4A 60 SPEC DIST 10m 4.7μF SVIN VOSNS 10µF ×2 50 VD LOAD 40 RUN SGND 4.7μF 30 INTV PGND CC LTM4653 VINREG 20 AMPLITUDE (dBµV/m) ANALOG OUTPUT COMPa IMONa 10 CURRENT INDICATOR [1] HORIZONTAL 10nF [2] VERTICAL IMONb VIMON = 0.25Ω • IOUT 0 QPK LIMIT 499Ω + FORMAL fSET
PINS NOT USED IN
–10
THIS CIRCUIT:
30 130 230 330 430 530 630 730 830 930 1000 124k GND ISETa ISETb CLKIN, PGOOD, COMPb FREQUENCY (MHz) 4653 TA01b 4653 TA01a PGDFB, SW, EXTVCC TEMP+, TEMP–, NC 481k Rev 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuit Decoupling Requirements Operation Operation Operation Applications Information Typical Applications Package Photograph Package Description Typical Application Related Parts
FEATURES DESCRIPTION
n
Complete Low EMI Switch Mode Power Supply
The LTM®4653 is an ultralow noise 58V, 4A DC/DC step- n
EN55022 Class B Compliant
down μModule® regulator designed to meet the radiated n
Wide Input Voltage Range: 3.1V to 58V
emissions requirements of EN55022. Conducted emis- n
Up to 4A Output Current
sion requirements can be met by adding standard filter n
Output Voltage Range: 0.5V ≤ VOUT ≤ 0.94 • VIN
components. Included in the package are the switching n
±1.67% Total DC Output Voltage Error Over Line,
controller, power MOSFETs, inductor, filters and support
Load and Temperature (–40°C to 125°C)
components. n
Parallel and Current Share with Multiple LTM4653s
Operating over an input voltage range of 3.1V to 58V, the n
Analog Output Current Indicator
LTM4653 supports an output voltage range of 0.5V to n
Programmable Input Voltage Limiting
94% of VIN, and a switching frequency range of 250kHz n Constant-Frequency Current Mode Control to 3MHz (400kHz default), each set by a single resistor. n Power Good Indicator and Programmable Soft-Start For high load currents, the LTM4653 can be paralleled in n Overcurrent/Overvoltage/Overtemperature Protection PolyPhase® operation and synchronized to an external n 15mm × 9mm × 5.01mm BGA Package clock. Only the bulk input and output filter capacitors are
APPLICATIONS
needed to finish the design. The LTM4653 is offered in a 15mm × 9mm × 5.01mm n Avionics, Industrial Control and Test Equipment BGA package with SnPb or RoHS compliant terminal finish. n Video, Imaging and Instrumentation n 48V Telecom and Network Power Supplies All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5847554, 6580258. n RF Systems
TYPICAL APPLICATION 4A, 24V Output Low EMI DC/DC μModule Regulator Radiated Emission Scan in a 10m Chamber with Analog Output Current Indicator LTM4653 Delivering 24VOUT at 3.5A, from 48VIN
IOUT 70 VIN 24V V OUT, MEAS DIST 10m 28V TO 58V IN VOUT UP TO 4A 60 SPEC DIST 10m 4.7μF SVIN VOSNS 10µF ×2 50 VD LOAD 40 RUN SGND 4.7μF 30 INTV PGND CC LTM4653 VINREG 20 AMPLITUDE (dBµV/m) ANALOG OUTPUT COMPa IMONa 10 CURRENT INDICATOR [1] HORIZONTAL 10nF [2] VERTICAL IMONb VIMON = 0.25Ω • IOUT 0 QPK LIMIT 499Ω + FORMAL fSET
PINS NOT USED IN
–10
THIS CIRCUIT:
30 130 230 330 430 530 630 730 830 930 1000 124k GND ISETa ISETb CLKIN, PGOOD, COMPb FREQUENCY (MHz) 4653 TA01b 4653 TA01a PGDFB, SW, EXTVCC TEMP+, TEMP–, NC 481k Rev 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuit Decoupling Requirements Operation Operation Operation Applications Information Typical Applications Package Photograph Package Description Typical Application Related Parts