Datasheet LTC3108 (Analog Devices) - 2

LTC3108
ABSOLUTE MAXIMUM RATINGS (Note 1)
SW Voltage ..–0.3V to 2V VS1, VS2, VAUX, VOUT, PGD ..–0.3V to 6V C1 Voltage ..–0.3V to 6V VLDO, VSTORE ..–0.3V to 6V C2 Voltage (Note 5) ...–8V to 8V Operating Junction Temperature Range VOUT2, VOUT2_EN ..–0.3V to 6V (Note 2) ..–40°C to 125°C VAUX .. 15mA into VAUX Storage Temperature Range ..–65°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW GND 1 16 GND VAUX 1 12 SW VAUX 2 15 SW VSTORE 2 11 C2 VSTORE 3 14 C2 VOUT 3 13 10 C1 VOUT 4 13 C1 GND VOUT2 4 9 VOUT2_EN VOUT2 5 12 VOUT2_EN VLDO 5 8 VS1 VLDO 6 11 VS1 PGD 6 7 VS2 PGD 7 10 VS2 DE PACKAGE GND 8 9 GND 12-LEAD (4mm × 3mm) PLASTIC DFN GN PACKAGE T 16-LEAD PLASTIC SSOP NARROW JMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB (NOTE 4) TJMAX = 125°C, θJA = 110°C/W
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3108EDE#PBF LTC3108EDE#TRPBF 3108 12-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C LTC3108IDE#PBF LTC3108IDE#TRPBF 3108 12-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C LTC3108EGN#PBF LTC3108EGN#TRPBF 3108 16-Lead Plastic SSOP –40°C to 125°C LTC3108IGN#PBF LTC3108IGN#TRPBF 3108 16-Lead Plastic SSOP –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.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are for TA = 25°C (Note 2). VAUX = 5V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Start-Up Voltage Using 1:100 Transformer Turns Ratio, VAUX = 0V 20 50 mV No-Load Input Current Using 1:100 Transformer Turns Ratio; VIN = 20mV, VOUT2_ 3 mA EN = 0V; All Outputs Charged and in Regulation Input Voltage Range Using 1:100 Transformer Turns Ratio l VSTARTUP 500 mV Rev. D 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 Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts