1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 A A B B C C E1 D GND E2 C1 4.7uF 50V 1206 R1 150k LT3480EDD U1 4 VIN BD 1 BOOST 2 SW 3 D C8 0.47uF 25V 0603 E 5 6 SYNC PG 10 JP1 SYNC G R2 40.2k PWM/SYNC 8 2 F 1 C2 0.068uF 50V 0603 RUN/SS 7 Vc D1 DFLS240L 40V 2A JP2 COMP RT FB L1 6.3uH 9 GND E6 NR6045T6R3M R7 20 5% TP1 LOCAL R4 20k REMOTE 11 C4 330pF BURST C5 VALUE OPT C6 VALUE OPT HV BUCK R6 499k JP3 WALL 2A F E5 5V ADAPTOR C7 22uF 0805 6.3V H GND Q1 Si2333DS 1 G H R5 100k R8 10k 5% HV BUCK INTERFACE J1 I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 J K L E HVBUCK 3.7V - 4.7V 3 8V - 38V 2 HVIN 5V ADAPTOR E3 J K TSH-108-01-T-RA L C3 10 0603 6.3V 4.5V - 5.5V E4 M I VOUT VC/TRACK VOUT GND ACPR GND PG WALL SYNC SHDN DVCC ILIM SDA HVOK/INIT SCL HVIN GND M R3 1 5% N N Note: * Move JP2 to REMOTE when connected to PMIC board. O CUSTOMER NOTICE Unless noted: Resistors: Ohms 0402 1% 1/16W Capacitors: uF 0402 10% 25V P Q CONTRACT NO. LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. APPROVALS G. Barbehenn CHECKED: 2 3 4 5 6 7 8 9 10 11 12 13 14 TITLE: APPROVED: ENGINEER: G. Barbehenn SIZE DESIGNER: DWG NO. DATE: 15 16 17 REV DC1394A Tuesday, July 29, 2008 18 19 A SHEET 20 O P LT3480EDD, PMIC High Voltage Adaptor Board with 5V Adaptor Inputs A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 1 TECHNOLOGY DRAWN: 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only 21 1 OF 1 22 Q