Datasheet LT8550 (Analog Devices) - 2

LT8550
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
SW1/2/3/4 ...80V (Note 5) TOP VIEW V ISP1/2/3/4, ISN1/2/3/4, ISP, ISN, V BST4 TG4 SW4 V IN REGDR REGIS ISN3 ISP3 ISP1 ISN1 NC PHS3 IN, REGIS, REGDRV Voltage (Note 2) ... –0.3V to 80V 52 51 50 49 48 47 46 45 44 43 42 41 SHDN Voltage .. –0.3V to 70V BG4 1 40 REGSNS TGSL Voltage .. –3V to 80V BG3 2 39 ISN4 TGSH Voltage .. –3V to 86V REG 3 38 ISP4 TG1/2/3/4, BST1/2/3/4, TGSR Voltage .. –0.3V to 86V SW3 4 37 ISN2 BG1/2/3/4, RT/MS, SYNC, PHS1/2/3, TG3 5 36 ISP2 CLK1/2, REGSNS, IAMPP, ILIM, BGSH, BST3 6 35 ISN BGBUF, TGBUF, ENOUT, MODE, V BST2 7 53 34 ISP CC, GND TG2 8 33 IAMPP REG, (BST-SW)1/2/3/4, (TG-SW)1/2/3/4, SW2 9 32 IAMPN (VIN-REGDRV), (TGSR-TGSL), BG2 10 31 SHDN (TGSH-TGSL) Voltage .. –0.3V to 6.0V BG1 11 30 MODE IAMPN Voltage .. –0.6V to 0.6V BGBUF 12 29 VCC (ISP-ISN)1/2/3/4, (ISP-ISN) Voltage ... –0.3V to 0.3V TGBUF 13 28 ENOUT Operating Junction Temperature Range (Note 3) BST1 14 27 ILIM LT8550E .. –40°C to 125°C 15 16 17 18 19 20 21 22 23 24 25 26 LT8550I ... –40°C to 125°C TG1 SW1 TGSR TGSH TGSL CLK2 CLK1 BGSH SYNC PHS2 PHS1 RT/MS Storage Temperature Range .. –65°C to 150°C UKG PACKAGE 52-LEAD (7mm × 8mm) PLASTIC QFN TJMAX = 125°C, θJA = 31°C/W, θJC = 2°C/W EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT8550EUKG#PBF LT8550EUKG#TRPBF 8550 52-PIN (7mm × 8mm) Plastic QFN –40°C to 125°C LT8550IUKG#PBF LT8550IUKG#TRPBF 8550 52-PIN (7mm × 8mm) Plastic QFN –40°C to 125°C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. Rev. 0 2 For more information www.analog.com