Datasheet LTC7815 (Analog Devices) - 35
| 制造商 | Analog Devices |
| 描述 | Low IQ, 2.25MHz, Triple Output, Buck/Buck/Boost Synchronous Controller |
| 页数 / 页 | 38 / 35 — TYPICAL APPLICATIONS. Figure 9. High Efficiency Wide Input Range 2.1MHz … |
| 文件格式/大小 | PDF / 1.4 Mb |
| 文件语言 | 英语 |
TYPICAL APPLICATIONS. Figure 9. High Efficiency Wide Input Range 2.1MHz Dual 5V/3.3V Regulator
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LTC7815
TYPICAL APPLICATIONS
VOUT1 10pF 357k LTC7815 68.1k VFB1 SENSE1– 82pF 1nF 100Ω SENSE1+ 820pF 4.99k 100k ITH1 PGOOD1 INTVCC 10µF 0.1µF TG1 MTOP1 L1 0.33µH 0.003Ω VOUT1 TRACK/SS1 SW1 5V 100k 0.1µF 7A FREQ BOOST1 COUT1 47µF V BG1 MBOT1 OUT2 ×2 10pF 210k D1 68.1k VFB2 VBIAS 0.1µF 82pF PGND 820pF 2.49k ITH2 4.7µF 0.1µF TRACK/SS2 INTVCC D2 10µF VOUT3 10pF 499k TG2 MTOP2 L2 68.1k 0.33µH 0.003Ω VOUT2 VFB3 BOOST2 0.1µF 3.3V 10A* 470pF SW2 COUT2 33µF BG2 MBOT2 ×2 4.7nF 8.06k ITH3 100Ω 0.1µF SENSE2+ SS3 1nF SENSE2– VOUT3 PLLINMODE 10V D3 COUT3B + 3A 100k 10µF COUT3A INTVCC OV3 TG3 MTOP3 L3 ×3 68µF 0.16µH 0.003Ω VIN SW3 2.5V TO 28V* VOUT1 EXTVCC + (START-UP ABOVE 5V) 0.1µF CINA RUN1 BOOST3 220µF CINB RUN2 BG3 MBOT3 10µF RUN3 SENSE3– ×2 100Ω 1nF SENSE3+ 7815 F09 MTOP1, 2: INFINEON BSZ097N04LS * WHEN VIN < 3.5V, MAXIMUM LOAD MBOT1, 2: INFINEON BSZ097N04LS CURRENT AVAILABLE OF CH3 IS REDUCED MTOP3: INFINEON BSC027NO4LS * VOUT3 IS 10V WHEN VIN < 10V MBOT3: INFINEON BSC027NO4LS FOLLOWS VIN WHEN VIN > 10V L1: COILCRAFT XAL5030-331ME L2: COILCRAFT XAL5030-331ME * OUTPUT CURRENT CAPABILITY L3: COILCRAFT XAL5030-161ME AT HIGH INPUT VOLTAGES MAY CINA: SANYO 50CE220LX BE LIMITED BY THE THERMAL CINB: TDK C3225X7R1H106M250AC CHARACTERISTICS OF THE OVERALL COUT1: TDK C3225X5R1A476M SYSTEM AND PRINTED CIRCUIT COUT2: TDK C3225X5R1A336M200AC BOARD DESIGN COUT3A: SANYO 50SVPF68M COUT3B: TDK C3225X7R1H106M250AC D1, D2: CMDSH-4E D3: BAS140W
Figure 9. High Efficiency Wide Input Range 2.1MHz Dual 5V/3.3V Regulator
7815f For more information www.linear.com/LTC7815 35 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS
TYPICAL APPLICATIONS
VOUT1 10pF 357k LTC7815 68.1k VFB1 SENSE1– 82pF 1nF 100Ω SENSE1+ 820pF 4.99k 100k ITH1 PGOOD1 INTVCC 10µF 0.1µF TG1 MTOP1 L1 0.33µH 0.003Ω VOUT1 TRACK/SS1 SW1 5V 100k 0.1µF 7A FREQ BOOST1 COUT1 47µF V BG1 MBOT1 OUT2 ×2 10pF 210k D1 68.1k VFB2 VBIAS 0.1µF 82pF PGND 820pF 2.49k ITH2 4.7µF 0.1µF TRACK/SS2 INTVCC D2 10µF VOUT3 10pF 499k TG2 MTOP2 L2 68.1k 0.33µH 0.003Ω VOUT2 VFB3 BOOST2 0.1µF 3.3V 10A* 470pF SW2 COUT2 33µF BG2 MBOT2 ×2 4.7nF 8.06k ITH3 100Ω 0.1µF SENSE2+ SS3 1nF SENSE2– VOUT3 PLLINMODE 10V D3 COUT3B + 3A 100k 10µF COUT3A INTVCC OV3 TG3 MTOP3 L3 ×3 68µF 0.16µH 0.003Ω VIN SW3 2.5V TO 28V* VOUT1 EXTVCC + (START-UP ABOVE 5V) 0.1µF CINA RUN1 BOOST3 220µF CINB RUN2 BG3 MBOT3 10µF RUN3 SENSE3– ×2 100Ω 1nF SENSE3+ 7815 F09 MTOP1, 2: INFINEON BSZ097N04LS * WHEN VIN < 3.5V, MAXIMUM LOAD MBOT1, 2: INFINEON BSZ097N04LS CURRENT AVAILABLE OF CH3 IS REDUCED MTOP3: INFINEON BSC027NO4LS * VOUT3 IS 10V WHEN VIN < 10V MBOT3: INFINEON BSC027NO4LS FOLLOWS VIN WHEN VIN > 10V L1: COILCRAFT XAL5030-331ME L2: COILCRAFT XAL5030-331ME * OUTPUT CURRENT CAPABILITY L3: COILCRAFT XAL5030-161ME AT HIGH INPUT VOLTAGES MAY CINA: SANYO 50CE220LX BE LIMITED BY THE THERMAL CINB: TDK C3225X7R1H106M250AC CHARACTERISTICS OF THE OVERALL COUT1: TDK C3225X5R1A476M SYSTEM AND PRINTED CIRCUIT COUT2: TDK C3225X5R1A336M200AC BOARD DESIGN COUT3A: SANYO 50SVPF68M COUT3B: TDK C3225X7R1H106M250AC D1, D2: CMDSH-4E D3: BAS140W
Figure 9. High Efficiency Wide Input Range 2.1MHz Dual 5V/3.3V Regulator
7815f For more information www.linear.com/LTC7815 35 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS