Datasheet LT8645S-2 (Analog Devices) - 26
| Hersteller | Analog Devices |
| Beschreibung | 65V, 8A Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current |
| Seiten / Seite | 30 / 26 — TYPICAL APPLICATIONS. Ultralow EMI 5V, 8A Step-Down Converter with Spread … |
| Revision | A |
| Dateiformat / Größe | PDF / 3.3 Mb |
| Dokumentensprache | Englisch |
TYPICAL APPLICATIONS. Ultralow EMI 5V, 8A Step-Down Converter with Spread Spectrum
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LT8645S-2
TYPICAL APPLICATIONS Ultralow EMI 5V, 8A Step-Down Converter with Spread Spectrum
FB1 BEAD VIN 5.5V TO 65V 2.2µF 2.2µF 4.7µF EN/UV 1210 1210 0805 VIN VIN 0.47µF 0.47µF 0805 0805 GND PINS NOT USED IN GND THIS CIRCUIT: LT8645S-2 BST CLKOUT, PG, TR/SS 0.1µF 1µF 1µH VOUT INTVCC SW 5V SYNC/MODE BIAS 8A 4.7pF 1M 100µF RT FB 1210 GND X5R/X7R 17.8k 243k fSW = 2MHz L: XEL6030 FB1 BEAD: WE-MPSB 100Ω 8A 1812 8640S-2 F10
2MHz 5V, 8A Step-Down Converter with Spread Spectrum
VIN 5.5V TO 65V 4.7µF EN/UV VIN VIN 0.47µF 0.47µF 0805 0805 GND GND LT8645S-2 BST 0.1µF 1µH VOUT PINS NOT USED IN SW 5V THIS CIRCUIT: 8A CLKOUT, PG, TR/SS SYNC/MODE BIAS 1µF 4.7pF 1M 100µF INTV 1210 CC FB 17.8k X5R/X7R RT GND 243k f 8640S-2 F11 SW = 2MHz L: XEL6030 Rev. A 26 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts
TYPICAL APPLICATIONS Ultralow EMI 5V, 8A Step-Down Converter with Spread Spectrum
FB1 BEAD VIN 5.5V TO 65V 2.2µF 2.2µF 4.7µF EN/UV 1210 1210 0805 VIN VIN 0.47µF 0.47µF 0805 0805 GND PINS NOT USED IN GND THIS CIRCUIT: LT8645S-2 BST CLKOUT, PG, TR/SS 0.1µF 1µF 1µH VOUT INTVCC SW 5V SYNC/MODE BIAS 8A 4.7pF 1M 100µF RT FB 1210 GND X5R/X7R 17.8k 243k fSW = 2MHz L: XEL6030 FB1 BEAD: WE-MPSB 100Ω 8A 1812 8640S-2 F10
2MHz 5V, 8A Step-Down Converter with Spread Spectrum
VIN 5.5V TO 65V 4.7µF EN/UV VIN VIN 0.47µF 0.47µF 0805 0805 GND GND LT8645S-2 BST 0.1µF 1µH VOUT PINS NOT USED IN SW 5V THIS CIRCUIT: 8A CLKOUT, PG, TR/SS SYNC/MODE BIAS 1µF 4.7pF 1M 100µF INTV 1210 CC FB 17.8k X5R/X7R RT GND 243k f 8640S-2 F11 SW = 2MHz L: XEL6030 Rev. A 26 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts