LT1109A Linear Technology, LT1109A Datasheet
LT1109A
Available stocks
Related parts for LT1109A
LT1109A Summary of contents
Page 1
... load, making the device ideal for cost-sensitive applications where standby current must be kept to a minimum. The LT1109A-12 can deliver 12V at over 150mA from a 5V supply, enough power to program four flash memory chips simultaneously. The LT1109A-5 can deliver 110mA from a 2V input ...
Page 2
... LT1109A BSOLUTE (Voltages Referred to GND Pin) Supply Voltage (V ) ................................ – 0.4V to 20V IN SW Pin Voltage ........................................ – 0.4V to 50V Feedback Pin Voltage (LT1109A) ........................... 5.5V Shutdown Pin Voltage ........................................... 5.5V U PACKAGE/ORDER I FOR ATIO TOP VIEW V FB (SENSE SHUTDOWN 2 7 LT1109ACN8 LT1109ACN8-5 PGND ...
Page 3
... Switch Saturation Voltage 0 650mA SW 0.6 0.5 0.4 0.3 0.2 0.1 0 –50 – TEMPERATURE (°C) 500 450 400 350 300 250 100 1109A G07 LT1109A Duty Cycle 100 – –25 TEMPERATURE (°C) 1109A G02 Switch On Time – 100 – ...
Page 4
... TEMPERATURE (°C) W BLOCK I D AGRA S LT1109A-5, LT1109A-12 V SENSE IN R2 250k 1.25V + REF COMP 120kHz A1 – R1* GND SHUTDOWN *LT1109A- 83k LT1109A-12 29k HARA TERISTICS C 160 150 140 130 120 110 100 100 125 75 1109A G09 1.25V ...
Page 5
... Circuit operation can be best under- stood by referring to the LT1109A block diagram. With SHUTDOWN high, comparator A1 compares the feedback (FB) pin voltage with the 1.25V reference signal. When FB ...
Page 6
... Powered Flash Memory VPP Generator MBRS130T3 SENSE IN LT1109A-12 7 SHUTDOWN + GND PGND 5 4 SHUTDOWN 2k MBRS130T3 2N4403 SENSE IN LT1109A-12 7 SHUTDOWN + GND PGND 47 F** 20V 4 5 SHUTDOWN 12V 35mA 33 F** 25V 1109A TA05 V OUT 12V 110mA + 1 F 1109A TA07 ...
Page 7
... S8 Package 8-Lead Plastic SOIC 0.053 – 0.069 (1.346 – 1.752) 0.004 – 0.010 (0.101 – 0.254) 0.050 0.014 – 0.019 (0.355 – 0.483) (1.270) BSC LT1109A 0.400 (10.160) MAX MIN 0.189 – 0.197 (4.801 – ...
Page 8
... LT1109A NORTHEAST REGION Linear Technology Corporation One Oxford Valley 2300 E. Lincoln Hwy.,Suite 306 Langhorne, PA 19047 Phone: (215) 757-8578 FAX: (215) 757-5631 Linear Technology Corporation 266 Lowell St., Suite B-8 Wilmington, MA 01887 Phone: (508) 658-3881 FAX: (508) 658-2701 FRANCE Linear Technology S.A.R.L. Immeuble "Le Quartz" ...