B A REVISION HISTORY LTC CONFIDENTIAL - For Customer Use Only ECO REV - 1 DESCRIPTION 2 E1 SS C5 2200pF 16V E4 2 3 9 C4 470pF R5 D2 LXHL-PW09 D3 LXHL-PW09 R10 100K R12 10K 6 16V (OPT.) C11 2200pF 16V E9 SS C12 .1uF R15 15K BOOST 2 L 3 C13 100pF E5 OPT GND E7 1 4.2uH CDRH-5D28-4R2 VOUT -5V@600mA D4 MBRS230LT1 SW VREF + EXPOSED GND PAD RT C17 * 47uF VC 8 12 Remove R7, Change R9 to 1.24K, install a 5.76K in R3 location and add C3. 2 L3 1uF SW U2 LT3479EDE GND 11 SHDN GND 7 13 1 14 3 E8 VS 5 C9 2.2uF 16V VIN 2 4 1 ON JP2 OFF SHDN C8 4.2uH CDRH-5D28-4R2 opertion as a regular ** For Boost Converter. (No LumiLeds) ** R9 0.33 1% R7 10K L2 2.5V TO 12V * FBP 7/1/04 VOUT 7V@600mA C3 .1uF 10V OPT C2 10uF 10V 1 1 VIN 1 10 R3 OPT 1% 1 E6 GND 1 FBN 113K C7 100pF R6 15K C6 .1uF SW L 4 6 10V (OPT.) GND EXPOSED GND PAD VREF 12 R4 10K 8 + VC R2 0 OHM SW U1 LT3479EDE RT C16 *47uF R1 100K SHDN GND 7 11 GND 1 2 14 3 E3 SHDN VS C1 2.2uF 16V 13 2 5 ON JP1 OFF VIN 2.5V TO 4.2V APPROVED - E2 OPT 1 3uH CDRH-5D28-3R0 1 VIN 3/25/04 ADD POL CAP C16,C17, & R16 D1 MBRS230LT1 L1 1 DATE PROTOTYPE 1 FBN 10 FBP 9 R13 100K INVERTER R11 402K 1% R14 OPT D5 CMDSH-3 C10 C14 10uF 10V OPT C15 .1uF 10V E10 1 1 GND 1 USED ONLY FOR OPERATION WITH LONG INPUT LEADS. P R O P R I E T A R Y D A T A: This circuit is proprietary to Linear Technology and supplied for use with Linear Technology parts. CUSTOMER NOTICE: Linear Technology has made a best effort to design a circuit that meets customer-supplied specifications; however, it remains the customer's responsibililty to verify proper and reliable operation in the actual application. Component substitution and printed circuit board layout may significantly affect circuit performance or reliability. Contact Linear Technology Applications Engineering for assistance. B UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES TOLERANCE ON ANGLE - - 2 PLACES - - - 3 PLACES - - INTERPRET DIM AND TOL PER ASME Y14.5M -1994 THIRD ANGLE PROJECTION CONTRACT NO. APPROVALS DRAWN June Wu DATE 03/22/04 CHECKED APPROVED TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 TITLE SCH, LT3479EDE, 1MHz GENERAL PURPOSE POSITIVE/NEGATIVE CONVERTER PCB ENGINEER DESIGNER DO NOT SCALE DRAWING Tuesday, November 09, 2004 SIZE CAGE CODE DWG NO A SCALE: NONE FILENAME:765Ar2.DSN A REV DC765A SHEET A 1 OF 1