B A REVISION HISTORY ECO REV DESCRIPTION 2 VIN L1 * R1 OPT OFF 3 TP4 R4 10K 0805 JP1 1 VC 2 C8 0.1uF 1 2 5 6 * VIN 2 R2 * R3 * D4 * C4 22uF 16V 1206 C5 0.1uF 16V 0603 R5 10K C6 100pF CLKOUT R7 84.5K * 2 11 9 8 7 6 10 SW2 SW3 FB LT3581EMSE R6 100K 0805 GATE * GND RT 14 SW2 SYNC SW1 16 U1 SW1 SHDN SW1 13 SYNC L2 D2 17 TP3 CLKOUT FAULT 12 4 SS VCC GATE 5 SHDN 2 C1 * 3 100K VOUT Q2 * 4 R10 22.1K 0805 OUTPUT 1 1 2 5 6 GATE 15 R9 2 * 3 4 01-21-10 TP2 Q1 OPT 3 * R8 2 1 C2 4.7uF 16V 1206 TP1 DATE JESUS R. VOUT * 1 VIN ON D1 APPROVED PRODUCTION C7 2.2nF TP5 GND TP8 TP7 GND * ASSEMBLY TYPE VIN DC1424A-A 5V TO 10V [email protected] NOT USED DC1424A-B 5V TO 12V [email protected] 2.2uF,25V VOUT C1 D1 D2 D4 DFLS220L NOT USED CMDSH-3TR DFLS130L NOT USED NOT USED L1 L2 IHLP2525CZER-4R7 NOT USED IHLP2525CZER8R2 IHPL2020CZE-1110uH Q2 R2 Si3433DV 130K NOT USED 143K R3 R8 6.8K NOT USED NOT USED 0 1 1 NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. CUSTOMER NOTICE 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 CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. B CONTRACT NO. APPROVALS PCB DES. A. K. ENG. JESUS R. TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC BOOST/INVERTING REGULATOR SIZE N/A DATE: IC NO. REV LT3581EMSE 2 DEMO CIRCUIT 1424A Monday, April 12, 2010 A SHEET 1 OF 1