Datasheet LTC3546 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator |
| 页数 / 页 | 30 / 2 — ABSOLUTE MAXIMUM RATINGS. (Note 1). PIN CONFIGURATION |
| 文件格式/大小 | PDF / 624 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. (Note 1). PIN CONFIGURATION
该数据表的模型线
文件文字版本
LTC3546
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN1, VIN1D, VIN2, VCCA, VCCD Voltages ... –0.3V to 6V Maximum Difference Between Any of SYNC/MODE, SW1, SW1D, SW2A, SW2B, VIN1, VIN1D, VIN2, VCCA, VCCD ..0.3V RUN1, RUN2, VFB1, VFB2, PHASE, FREQ, PGOOD1, PGOOD2 Voltage .. –0.3V to 6V ITH1, ITH2, TRACK/SS1, TRACK/SS2, BMC1, Operating Junction Temperature Range BMC2 Voltages .. –0.3V to (VIN1 or VIN2) + 0.3V (Notes 2, 6, 7) .. –40°C to 125°C Storage Temperature Range ... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW V 1 28 CCA GNDA SYNC/MODE 2 27 FREQ PGOOD2 SYNC/MODE V CCA GNDA FREQ PGOOD1 PGOOD2 3 26 PGOOD1 28 27 26 25 24 23 BMC2 4 25 BMC1 BMC2 1 22 BMC1 TRACK/SS2 5 24 TRACK/SS1 TRACK/SS2 2 21 TRACK/SS1 V 6 23 FB2 VFB1 VFB2 3 20 VFB1 I 7 22 TH2 ITH1 ITH2 4 19 ITH1 29 29 V 8 21 PHASE V CCD CCD 5 18 PHASE RUN2 9 20 RUN1 RUN2 6 17 RUN1 V 10 PGND2 V 19 IN2 IN2 7 16 PGND2 V V 11 18 PGND1 IN1 8 15 PGND1 IN1 9 10 11 12 13 14 V 12 17 IN1D PGND1D SW2A 13 16 SW1 V IN1D SW2A SW2B SW1D SW1 SW2B 14 15 SW1D PGND1D UFD PACKAGE FE PACKAGE 28-LEAD (4mm × 5mm) PLASTIC QFN 28-LEAD PLASTIC TSSOP T JMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 29) IS GNDD TJMAX = 125°C, θJA = 25°C/W EXPOSED PAD (PIN 29) IS GNDD MUST BE SOLDERED TO PCB 3546fd 2 For more information www.linear.com/3546
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN1, VIN1D, VIN2, VCCA, VCCD Voltages ... –0.3V to 6V Maximum Difference Between Any of SYNC/MODE, SW1, SW1D, SW2A, SW2B, VIN1, VIN1D, VIN2, VCCA, VCCD ..0.3V RUN1, RUN2, VFB1, VFB2, PHASE, FREQ, PGOOD1, PGOOD2 Voltage .. –0.3V to 6V ITH1, ITH2, TRACK/SS1, TRACK/SS2, BMC1, Operating Junction Temperature Range BMC2 Voltages .. –0.3V to (VIN1 or VIN2) + 0.3V (Notes 2, 6, 7) .. –40°C to 125°C Storage Temperature Range ... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW V 1 28 CCA GNDA SYNC/MODE 2 27 FREQ PGOOD2 SYNC/MODE V CCA GNDA FREQ PGOOD1 PGOOD2 3 26 PGOOD1 28 27 26 25 24 23 BMC2 4 25 BMC1 BMC2 1 22 BMC1 TRACK/SS2 5 24 TRACK/SS1 TRACK/SS2 2 21 TRACK/SS1 V 6 23 FB2 VFB1 VFB2 3 20 VFB1 I 7 22 TH2 ITH1 ITH2 4 19 ITH1 29 29 V 8 21 PHASE V CCD CCD 5 18 PHASE RUN2 9 20 RUN1 RUN2 6 17 RUN1 V 10 PGND2 V 19 IN2 IN2 7 16 PGND2 V V 11 18 PGND1 IN1 8 15 PGND1 IN1 9 10 11 12 13 14 V 12 17 IN1D PGND1D SW2A 13 16 SW1 V IN1D SW2A SW2B SW1D SW1 SW2B 14 15 SW1D PGND1D UFD PACKAGE FE PACKAGE 28-LEAD (4mm × 5mm) PLASTIC QFN 28-LEAD PLASTIC TSSOP T JMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 29) IS GNDD TJMAX = 125°C, θJA = 25°C/W EXPOSED PAD (PIN 29) IS GNDD MUST BE SOLDERED TO PCB 3546fd 2 For more information www.linear.com/3546