Datasheet LTC3838-1 (Analog Devices) - 2

LTC3838-1
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
V TOP VIEW IN Voltage ... –0.3V to 40V + – BOOST1, BOOST2 Voltages ... –0.3V to 46V – SW1, SW2 Voltages .. –5V to 40V V DFB2 SENSE2 SENSE2 DTR2 RUN2 PGOOD2 BOOST2 38 37 36 35 34 33 32 INTVCC, DRVCC1, DRVCC2, EXTVCC, PGOOD1, VDFB2+ 1 31 TG2 PGOOD2, RUN1, RUN2, (BOOST1-SW1), VRNG 2 30 SW2 (BOOST2-SW2), MODE/PLLIN Voltages .. –0.3V to 6V ITH2 3 29 BG2 SENSE1+, SENSE2+,SENSE1–, SENSE2– TRACK/SS2 4 28 DRVCC2 Voltages ... –0.6V to 6V MODE/PLLIN 5 27 EXTVCC V + CLKOUT 6 26 INTV OUTSENSE1 Voltage ... –0.6V to (INTVCC + 0.3V) 39 CC SGND PGND V – + 7 25 PGND OUTSENSE1 Voltage ...–0.6V to VOUTSENSE1 RT 8 24 V TRACK/SS1, TRACK/SS2 Voltages .. –0.3V to 5V IN PHASMD 9 23 DRVCC1 DTR1, DTR2, PHASMD, RT, V + – RNG, VDFB2 , VDFB2 , ITH1 10 22 BG1 ITH1, ITH2 Voltages .. –0.3V to (INTVCC + 0.3V) TRACK/SS1 11 21 SW1 Operating Junction Temperature Range VOUTSENSE1+ 12 20 TG1 (Notes 2, 3, 4) .. –40°C to 125°C 13 14 15 16 17 18 19 – + – Storage Temperature Range .. –65°C to 150°C DTR1 RUN1 SENSE1 SENSE1 PGOOD1 BOOST1 V OUTSENSE1 UHF PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
orDer inForMaTion (http://www.linear.com/product/LTC3838-1#orderinfo) LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3838EUHF-1#PBF LTC3838EUHF-1#TRPBF 38381 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3838IUHF-1#PBF LTC3838IUHF-1#TRPBF 38381 38-Lead (5mm × 7mm) 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. 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
Table 1. Comparison of LTC3838 Options PART NUMBER DESCRIPTION
LTC3838 ±0.67% Differential Output Regulation on Channel 1 ±1% Output Regulation on Channel 2 Separate-Per-Channel Continuous 30mV to 100mV Current Sense Range Controls LTC3838-1 ±0.67% and ±0.75%, Both Differential Output Regulation on Channel 1 and 2 Single-Pin 30mV/60mV Current Sense Range Control, Improved Current Limit Accuracy Than LTC3838 LTC3838-2 ±0.67% Differential Output Regulation with Internal Reference on Channel 1 ±4mV Differential Output Regulation with External Reference Voltage on Channel 2 Fixed 30mV Current Sense Range, Improved Current Limit Accuracy Than LTC3838 38381fa 2 For more information www.linear.com/3838-1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts