Datasheet LTC7800 (Analog Devices) - 28
| Hersteller | Analog Devices |
| Beschreibung | Low IQ , 60V, High Frequency Synchronous Step-Down Controller |
| Seiten / Seite | 32 / 28 — APPLICATIONS INFORMATION. Figure 11. High Efficiency 3.3V 2.1MHz … |
| Dateiformat / Größe | PDF / 1.3 Mb |
| Dokumentensprache | Englisch |
APPLICATIONS INFORMATION. Figure 11. High Efficiency 3.3V 2.1MHz Step-Down Regulator
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Textversion des Dokuments
LTC7800
APPLICATIONS INFORMATION
VIN 4V TO 28V* CINA INB LTC7800 2.2µF C 56µF ×3 VIN INTVCC PLLIN/MODE 2.2µF RUN PGND ILIM D1 100k INTVCC PGOOD TG MTOP 0.1µF EXTVCC BOOST L1 100k R 0.33µH SENSE FREQ 4mΩ VOUT 820pF SW 3.3V C 2.49k OUT 10A* 33µF ITH BG MBOT 82pF ×2 RFLT 10Ω 0.1µF SENSE+ 357k TRACK/SS 1nF 10pF SGND SENSE– VFB SGND 115k MTOP: INFINEON BSZ0506NS MBOT: INFINEON BSZ0503NSI 7800 F11 L1: COILCRAFT XAL5030-331ME INA C : TDK C4532X7R2A225M INB C : SUN ELECT 63HVH56M *OUTPUT CURRENT CAPABILITY AT HIGH INPUT VOLTAGES COUT: TDK C4532X7R1C336M MAY BE LIMITED BY THE THERMAL CHARACTERISTICS OF D1: CENTRAL SEMI CMDSH-4E THE OVERALL SYSTEM AND PRINTED CIRCUIT BOARD DESIGN.
Figure 11. High Efficiency 3.3V 2.1MHz Step-Down Regulator
VIN 5.5V TO 38V* CINA 2.2µF CINB LTC7800 56µF ×3 VIN INTVCC PLLIN/MODE 2.2µF RUN PGND ILIM D1 100k INTVCC PGOOD TG MTOP 0.1µF VOUT EXTVCC L1 100k BOOST R 0.3µH SENSE FREQ 4mΩ VOUT 820pF SW 5.0V 4.99k COUT 10A* ITH BG MBOT 47µF 82pF ×2 RFLT 20Ω 0.1µF SENSE+ 604k TRACK/SS 1nF 10pF SGND SENSE– V SGND FB 115k MTOP/MBOT: INFINEON BSZ097N04LS L1: WURTH 744355230 7800 F12 INA C : TDK C4532X7R2A225M CINB: SUN ELECT 63HVH56M *OUTPUT CURRENT CAPABILITY AT HIGH INPUT VOLTAGES COUT: TDK C4532X5R1A476M MAY BE LIMITED BY THE THERMAL CHARACTERISTICS OF D1: CENTRAL SEMI CMDSH-4E THE OVERALL SYSTEM AND PRINTED CIRCUIT BOARD DESIGN.
Figure 12. High Efficiency 5V 2.1MHz Step-Down Regulator
7800f 28 For more information www.linear.com/LTC7800 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions FUNCTIONAL Diagram Operation Applications Information Typical Application Related Parts
APPLICATIONS INFORMATION
VIN 4V TO 28V* CINA INB LTC7800 2.2µF C 56µF ×3 VIN INTVCC PLLIN/MODE 2.2µF RUN PGND ILIM D1 100k INTVCC PGOOD TG MTOP 0.1µF EXTVCC BOOST L1 100k R 0.33µH SENSE FREQ 4mΩ VOUT 820pF SW 3.3V C 2.49k OUT 10A* 33µF ITH BG MBOT 82pF ×2 RFLT 10Ω 0.1µF SENSE+ 357k TRACK/SS 1nF 10pF SGND SENSE– VFB SGND 115k MTOP: INFINEON BSZ0506NS MBOT: INFINEON BSZ0503NSI 7800 F11 L1: COILCRAFT XAL5030-331ME INA C : TDK C4532X7R2A225M INB C : SUN ELECT 63HVH56M *OUTPUT CURRENT CAPABILITY AT HIGH INPUT VOLTAGES COUT: TDK C4532X7R1C336M MAY BE LIMITED BY THE THERMAL CHARACTERISTICS OF D1: CENTRAL SEMI CMDSH-4E THE OVERALL SYSTEM AND PRINTED CIRCUIT BOARD DESIGN.
Figure 11. High Efficiency 3.3V 2.1MHz Step-Down Regulator
VIN 5.5V TO 38V* CINA 2.2µF CINB LTC7800 56µF ×3 VIN INTVCC PLLIN/MODE 2.2µF RUN PGND ILIM D1 100k INTVCC PGOOD TG MTOP 0.1µF VOUT EXTVCC L1 100k BOOST R 0.3µH SENSE FREQ 4mΩ VOUT 820pF SW 5.0V 4.99k COUT 10A* ITH BG MBOT 47µF 82pF ×2 RFLT 20Ω 0.1µF SENSE+ 604k TRACK/SS 1nF 10pF SGND SENSE– V SGND FB 115k MTOP/MBOT: INFINEON BSZ097N04LS L1: WURTH 744355230 7800 F12 INA C : TDK C4532X7R2A225M CINB: SUN ELECT 63HVH56M *OUTPUT CURRENT CAPABILITY AT HIGH INPUT VOLTAGES COUT: TDK C4532X5R1A476M MAY BE LIMITED BY THE THERMAL CHARACTERISTICS OF D1: CENTRAL SEMI CMDSH-4E THE OVERALL SYSTEM AND PRINTED CIRCUIT BOARD DESIGN.
Figure 12. High Efficiency 5V 2.1MHz Step-Down Regulator
7800f 28 For more information www.linear.com/LTC7800 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions FUNCTIONAL Diagram Operation Applications Information Typical Application Related Parts