Datasheet LTC3826-1 (Analog Devices) - 2

制造商Analog Devices
描述30µA IQ, Dual, 2-Phase Synchronous Step-Down Controller
页数 / 页32 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. …
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ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING

ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING

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LTC3826-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
TOP VIEW Input Supply Voltage (VIN) ... 36V to –0.3V I 1 28 TH1 TRACK/SS1 Topside Driver Voltages V 2 27 FB1 PGOOD1 BOOST1, BOOST2 .. 42V to –0.3V SENSE1+ 3 26 TG1 Switch Voltage (SW1, SW2) ... 36V to –5V SENSE1– 4 25 SW1 (BOOST1-SW1), (BOOST2-SW2) ... 8.5V to –0.3V PLLLPF 5 24 BOOST1 RUN1, RUN2 ... 7V to –0.3V PLLIN/MODE 6 23 BG1 SENSE1+, SENSE2+, SENSE1–, SGND 7 22 VIN SENSE2– Voltages ... 11V to –0.3V RUN1 8 21 PGND RUN2 9 20 EXTV PLLIN/MODE, PLLLPF, TRACK/SS1, TRACK/SS2 CC SENSE2– 10 19 INTVCC Voltages ... INTVCC to –0.3V SENSE2+ 11 18 BG2 EXTVCC .. 10V to –0.3V V 12 17 FB2 BOOST2 ITH1, ITH2, VFB1, VFB2 Voltages ... 2.7V to –0.3V I 13 16 TH2 SW2 PGOOD1 Voltage ... 8.5V to –0.3V TRACK/SS2 14 15 TG2 Peak Output Current <10μs (TG1, TG2, BG1, BG2) ...3A G PACKAGE 28-LEAD PLASTIC SSOP Operating Temperature Range (Note 2).. –40°C to 85°C TJMAX = 125°C, QJA = 95°C/W Junction Temperature (Note 3) ... 125°C Storage Temperature Range ... –65°C to 150°C Lead Temperature (Soldering, 10 sec) .. 300°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3826EG-1#PBF LTC3826EG-1#TRPBF LTC3826EG-1 28-Lead Plastic SSOP –40°C to 85°C LTC3826IG-1#PBF LTC3826IG-1#TRPBF LTC3826IG-1 28-Lead Plastic SSOP –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3826EG-1 LTC3826EG-1#TR LTC3826EG-1 28-Lead Plastic SSOP –40°C to 85°C LTC3826IG-1 LTC3826IG-1#TR LTC3826IG-1 28-Lead Plastic SSOP –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 12V, VRUN/SS1, 2 = 5V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loops
VFB1, 2 Regulated Feedback Voltage (Note 4) ITH1, 2 Voltage = 1.2V l 0.792 0.800 0.808 V IVFB1, 2 Feedback Current (Note 4) –5 –50 nA VREFLNREG Reference Voltage Line Regulation VIN = 4V to 30V (Note 4) 0.002 0.02 %/V 38261fb 2