Datasheet LTC7815 (Analog Devices) - 2

LTC7815
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 71V 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 65V 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) BG1, BG2, BG3, TG1, TG2, TG3 .. (Note 8) LTC7815E, LTC7815I .. –40°C to 125°C RUN1, RUN2, RUN3 .. –0.3V to 8V LTC7815H .. –40°C to 150°C Maximum Current Sourced Into Pin Storage Temperature Range .. –65°C to 150°C from Source >8V ..100µA
PIN CONFIGURATION
TOP VIEW – + SENSE1 SENSE1 V FB1 I TH1 TRACK/SS1 PGOOD1 TG1 38 37 36 35 34 33 32 FREQ 1 31 SW1 PLLIN/MODE 2 30 BOOST1 SS3 3 29 BG1 SENSE3+ 4 28 SW3 SENSE3– 5 27 TG3 VFB3 6 39 26 BOOST3 PGND ITH3 7 25 BG3 SGND 8 24 VBIAS RUN1 9 23 EXTVCC RUN2 10 22 INTVCC RUN3 11 21 BG2 SENSE2– 12 20 BOOST2 13 14 15 16 17 18 19 + V FB2 I TH2 OV3 TG2 SW2 SENSE2 TRACK/SS2 UHF PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 150°C, qJA = 34.7°C/W, qJC = 2°C/W EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB 7815f 2 For more information www.linear.com/LTC7815 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