Datasheet LT8648S (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | 42V, 15A Synchronous Step-Down Silent Switcher 2 |
| Pages / Page | 28 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. Conducted EMI Performance. Radiated … |
| File Format / Size | PDF / 2.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Conducted EMI Performance. Radiated EMI Performance
Model Line for this Datasheet
Text Version of Document
LT8648S
TYPICAL PERFORMANCE CHARACTERISTICS Conducted EMI Performance Conducted EMI Performance
60 50 40 30 V) 20 10 0 AMPLITUDE (dBµ –10 –20 SPREAD SPECTRUM MODE –30 FIXED FREQUENCY MODE –40 0 3 6 9 12 15 18 21 24 27 30 FREQUENCY (MHz) DC2841A DEMO BOARD 8648S G38 (WITH EMI FILTER INSTALLED) 14V INPUT TO 5V OUTPUT AT 15A, fSW = 400kHz
Radiated EMI Performance (CISPR25 Radiated Emission Test with Class 5 Peak Limits) Radiated EMI Performance (CISPR25 Radiated Emission Test with Class 5 Peak Limits)
50 VERTICAL POLARIZATION 45 PEAK DETECTOR 40 35 V/m) 30 25 20 15 AMPLITUDE (dBµ 10 5 CLASS 5 PEAK LIMIT SPREAD SPECTRUM MODE 0 FIXED FREQUENCY MODE –5 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz)
Radiated EMI Performance
8648S G39a
(CISPR25 Radiated Emission Test with Class 5 Peak Limits)
50 HORIZONTAL POLARIZATION 45 PEAK DETECTOR 40 35 V/m) 30 25 20 15 AMPLITUDE (dBµ 10 5 CLASS 5 PEAK LIMIT SPREAD SPECTRUM MODE 0 FIXED FREQUENCY MODE –5 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz) DC2841A DEMO BOARD 8648S G39b (WITH EMI FILTER INSTALLED) 14V INPUT TO 5V OUTPUT AT 15A, fSW = 400kHz Rev. 0 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Applications Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Conducted EMI Performance Conducted EMI Performance
60 50 40 30 V) 20 10 0 AMPLITUDE (dBµ –10 –20 SPREAD SPECTRUM MODE –30 FIXED FREQUENCY MODE –40 0 3 6 9 12 15 18 21 24 27 30 FREQUENCY (MHz) DC2841A DEMO BOARD 8648S G38 (WITH EMI FILTER INSTALLED) 14V INPUT TO 5V OUTPUT AT 15A, fSW = 400kHz
Radiated EMI Performance (CISPR25 Radiated Emission Test with Class 5 Peak Limits) Radiated EMI Performance (CISPR25 Radiated Emission Test with Class 5 Peak Limits)
50 VERTICAL POLARIZATION 45 PEAK DETECTOR 40 35 V/m) 30 25 20 15 AMPLITUDE (dBµ 10 5 CLASS 5 PEAK LIMIT SPREAD SPECTRUM MODE 0 FIXED FREQUENCY MODE –5 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz)
Radiated EMI Performance
8648S G39a
(CISPR25 Radiated Emission Test with Class 5 Peak Limits)
50 HORIZONTAL POLARIZATION 45 PEAK DETECTOR 40 35 V/m) 30 25 20 15 AMPLITUDE (dBµ 10 5 CLASS 5 PEAK LIMIT SPREAD SPECTRUM MODE 0 FIXED FREQUENCY MODE –5 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz) DC2841A DEMO BOARD 8648S G39b (WITH EMI FILTER INSTALLED) 14V INPUT TO 5V OUTPUT AT 15A, fSW = 400kHz Rev. 0 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Applications Related Parts
