Datasheet LTC3617 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | ±6A Monolithic Synchronous Step-Down Regulator for DDR Termination |
| 页数 / 页 | 20 / 2 — absolute MaxiMuM ratings. pin conFiguration. (Note 1). orDer inForMation … |
| 文件格式/大小 | PDF / 487 Kb |
| 文件语言 | 英语 |
absolute MaxiMuM ratings. pin conFiguration. (Note 1). orDer inForMation LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
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LTC3617
absolute MaxiMuM ratings pin conFiguration (Note 1)
PV TOP VIEW IN, SVIN Voltages ... –0.3V to 6V SW Voltage ... –0.3V to (PVIN + 0.3V) ITH, RT, SYNC Voltages .. –0.3V to (SV VDDQIN ITH V FB PGOOD IN + 0.3V) 24 23 22 21 VTTR, RUN, VFB Voltages ... –0.3V to (SVIN + 0.3V) VDDQIN, PGOOD Voltages ... –0.3V to 6V RT 1 20 SYNC Operating Junction Temperature Range SGND 2 19 RUN (Notes 2, 8) .. –40°C to 125°C VTTR 3 18 SVIN Storage Temperature.. –65°C to 150°C PVIN 4 17 PV 25 IN SW 5 PGND 16 SW SW 6 15 SW SW 7 14 SW SW 8 13 SW 9 10 11 12 NC IN IN NC PV PV UDD PACKAGE 24-LEAD (3mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 25) IS PGND, MUST BE SOLDERED TO PCB
orDer inForMation LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3617EUDD#PBF LTC3617EUDD#TRPBF LFXC 24-Lead (3mm × 5mm) Plastic QFN –40°C to 125°C LTC3617IUDD#PBF LTC3617IUDD#TRPBF LFXC 24-Lead (3mm × 5mm) Plastic QFN –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
electrical characteristics The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C. PVIN = SVIN = 3.3V, RT = SVIN unless otherwise specified (Notes 1, 2, 8). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Operating Range l 2.25 5.5 V VUVLO Undervoltage Lockout Threshold SVIN Ramping Down l 1.7 V SVIN Ramping Up l 2.2 V VOVLO Overvoltage Lockout Threshold SVIN Ramping Up 6.5 7 V Hysteresis 250 mV VTTR VTTR Output Voltage with Line and Load VDDQIN = 1.5V, Load = ±10mA l 0.49 • VDDQIN 0.5 • VDDQIN 0.51 • VDDQIN V Regulation VTTR Maximum Output Current ±10 mA VFB Feedback Voltage Accuracy VDDQIN = 1.5V (Note 3) l VTTR – 10 VTTR VTTR + 10 mV IFB Feedback Input Current VFB = 0.75V l ±30 nA 3617fa 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
absolute MaxiMuM ratings pin conFiguration (Note 1)
PV TOP VIEW IN, SVIN Voltages ... –0.3V to 6V SW Voltage ... –0.3V to (PVIN + 0.3V) ITH, RT, SYNC Voltages .. –0.3V to (SV VDDQIN ITH V FB PGOOD IN + 0.3V) 24 23 22 21 VTTR, RUN, VFB Voltages ... –0.3V to (SVIN + 0.3V) VDDQIN, PGOOD Voltages ... –0.3V to 6V RT 1 20 SYNC Operating Junction Temperature Range SGND 2 19 RUN (Notes 2, 8) .. –40°C to 125°C VTTR 3 18 SVIN Storage Temperature.. –65°C to 150°C PVIN 4 17 PV 25 IN SW 5 PGND 16 SW SW 6 15 SW SW 7 14 SW SW 8 13 SW 9 10 11 12 NC IN IN NC PV PV UDD PACKAGE 24-LEAD (3mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 25) IS PGND, MUST BE SOLDERED TO PCB
orDer inForMation LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3617EUDD#PBF LTC3617EUDD#TRPBF LFXC 24-Lead (3mm × 5mm) Plastic QFN –40°C to 125°C LTC3617IUDD#PBF LTC3617IUDD#TRPBF LFXC 24-Lead (3mm × 5mm) Plastic QFN –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
electrical characteristics The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C. PVIN = SVIN = 3.3V, RT = SVIN unless otherwise specified (Notes 1, 2, 8). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Operating Range l 2.25 5.5 V VUVLO Undervoltage Lockout Threshold SVIN Ramping Down l 1.7 V SVIN Ramping Up l 2.2 V VOVLO Overvoltage Lockout Threshold SVIN Ramping Up 6.5 7 V Hysteresis 250 mV VTTR VTTR Output Voltage with Line and Load VDDQIN = 1.5V, Load = ±10mA l 0.49 • VDDQIN 0.5 • VDDQIN 0.51 • VDDQIN V Regulation VTTR Maximum Output Current ±10 mA VFB Feedback Voltage Accuracy VDDQIN = 1.5V (Note 3) l VTTR – 10 VTTR VTTR + 10 mV IFB Feedback Input Current VFB = 0.75V l ±30 nA 3617fa 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts