Datasheet LTC3859AL (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Triple Output, Buck/Buck/Boost Synchronous Controller with 28μA Burst Mode IQ |
| Pages / Page | 44 / 2 — ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION |
| Revision | B |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION
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Text Version of Document
LTC3859AL
ABSOLUTE MAXIMUM RATINGS (Note 1)
Bias Input Supply Voltage (VBIAS) .. –0.3V to 40V SENSE1+, SENSE2+, SENSE1– Buck Top Side Driver Voltages SENSE2– Voltages ... –0.3V to 28V (BOOST1, BOOST2) ... –0.3V to 46V SENSE3+, SENSE3– Voltages ... –0.3V to 40V Boost Top Side Driver Voltages FREQ Voltages ..–0.3V to INTVCC (BOOST3) .. –0.3V to 76V EXTVCC .. –0.3V to 14V Buck Switch Voltage (SW1, SW2) .. –5V to 40V ITH1, ITH2, ITH3, VFB1, VFB2, VFB3 Voltages .. –0.3V to 6V Boost Switch Voltage (SW3) .. –5V to 70V PLLIN/MODE, PGOOD1, OV3 Voltages .. –0.3V to 6V INTVCC, (BOOST1–SW1), TRACK/SS1, TRACK/SS2, SS3 Voltages ... –0.3V to 6V (BOOST2–SW2), (BOOST3–SW3) ... –0.3V to 6V Operating Junction Temperature Range (Notes 2, 3) RUN1, RUN2, RUN3 .. –0.3V to 8V LTC3859ALE, LTC3859ALI .. –40°C to 125°C Maximum Current Sourced Into Pin LTC3859ALH ... –40°C to 150°C from Source >8V ..100µA LTC3859ALMP ... –55°C to 150°C Storage Temperature Range .. –65°C to 150°C
PIN CONFIGURATION
TOP VIEW TOP VIEW I 1 38 TH1 TRACK/SS1 – + V 2 37 FB1 PGOOD1 SENSE1+ 3 36 TG1 SENSE1 SENSE1 V FB1 I TH1 TRACK/SS1 PGOOD1 TG1 SENSE1– 4 35 SW1 38 37 36 35 34 33 32 FREQ 5 34 BOOST1 FREQ 1 31 SW1 PLLIN/MODE 6 33 BG1 PLLIN/MODE 2 30 BOOST1 SS3 7 32 SW3 SS3 3 29 BG1 SENSE3+ SW3 SENSE3+ 8 31 TG3 4 28 SENSE3– 5 27 TG3 SENSE3– 9 30 BOOST3 VFB3 6 26 BOOST3 V 10 39 29 39 FB3 BG3 PGND PGND ITH3 7 25 BG3 I 11 28 TH3 VBIAS SGND 8 24 VBIAS SGND 12 27 EXTVCC RUN1 9 23 EXTVCC RUN1 13 26 INTVCC RUN2 10 22 INTVCC RUN2 14 25 BG2 RUN3 11 21 BG2 RUN3 15 24 BOOST2 SENSE2– 12 20 BOOST2 SENSE2– 16 23 SW2 13 14 15 16 17 18 19 SENSE2+ 17 22 TG2 + V FB2 I TH2 OV3 TG2 SW2 V 18 21 FB2 OV3 SENSE2 I 19 20 TH2 TRACK/SS2 TRACK/SS2 UHF PACKAGE FE PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN 38-LEAD PLASTIC TSSOP TJMAX = 150°C, qJA = 34.7°C/W TJMAX = 150°C, qJA = 25°C/W EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB Rev. B 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
ABSOLUTE MAXIMUM RATINGS (Note 1)
Bias Input Supply Voltage (VBIAS) .. –0.3V to 40V SENSE1+, SENSE2+, SENSE1– Buck Top Side Driver Voltages SENSE2– Voltages ... –0.3V to 28V (BOOST1, BOOST2) ... –0.3V to 46V SENSE3+, SENSE3– Voltages ... –0.3V to 40V Boost Top Side Driver Voltages FREQ Voltages ..–0.3V to INTVCC (BOOST3) .. –0.3V to 76V EXTVCC .. –0.3V to 14V Buck Switch Voltage (SW1, SW2) .. –5V to 40V ITH1, ITH2, ITH3, VFB1, VFB2, VFB3 Voltages .. –0.3V to 6V Boost Switch Voltage (SW3) .. –5V to 70V PLLIN/MODE, PGOOD1, OV3 Voltages .. –0.3V to 6V INTVCC, (BOOST1–SW1), TRACK/SS1, TRACK/SS2, SS3 Voltages ... –0.3V to 6V (BOOST2–SW2), (BOOST3–SW3) ... –0.3V to 6V Operating Junction Temperature Range (Notes 2, 3) RUN1, RUN2, RUN3 .. –0.3V to 8V LTC3859ALE, LTC3859ALI .. –40°C to 125°C Maximum Current Sourced Into Pin LTC3859ALH ... –40°C to 150°C from Source >8V ..100µA LTC3859ALMP ... –55°C to 150°C Storage Temperature Range .. –65°C to 150°C
PIN CONFIGURATION
TOP VIEW TOP VIEW I 1 38 TH1 TRACK/SS1 – + V 2 37 FB1 PGOOD1 SENSE1+ 3 36 TG1 SENSE1 SENSE1 V FB1 I TH1 TRACK/SS1 PGOOD1 TG1 SENSE1– 4 35 SW1 38 37 36 35 34 33 32 FREQ 5 34 BOOST1 FREQ 1 31 SW1 PLLIN/MODE 6 33 BG1 PLLIN/MODE 2 30 BOOST1 SS3 7 32 SW3 SS3 3 29 BG1 SENSE3+ SW3 SENSE3+ 8 31 TG3 4 28 SENSE3– 5 27 TG3 SENSE3– 9 30 BOOST3 VFB3 6 26 BOOST3 V 10 39 29 39 FB3 BG3 PGND PGND ITH3 7 25 BG3 I 11 28 TH3 VBIAS SGND 8 24 VBIAS SGND 12 27 EXTVCC RUN1 9 23 EXTVCC RUN1 13 26 INTVCC RUN2 10 22 INTVCC RUN2 14 25 BG2 RUN3 11 21 BG2 RUN3 15 24 BOOST2 SENSE2– 12 20 BOOST2 SENSE2– 16 23 SW2 13 14 15 16 17 18 19 SENSE2+ 17 22 TG2 + V FB2 I TH2 OV3 TG2 SW2 V 18 21 FB2 OV3 SENSE2 I 19 20 TH2 TRACK/SS2 TRACK/SS2 UHF PACKAGE FE PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN 38-LEAD PLASTIC TSSOP TJMAX = 150°C, qJA = 34.7°C/W TJMAX = 150°C, qJA = 25°C/W EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB Rev. B 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
