5 4 3 2 1 R11 D OPT D 0603 U1 LT3065EDD 1 2 VIN 2.2V - 45V E2 GND E4 C VOUT ON + C1 22uF 50V 3 C2 10uF 50V 1210 5 6 C7 0.022uF R10 604 0603 1 VIN VIN PWRGD SHDN OUT OUT ILIM BYP GND C5 0.01uF 0603 11 GND ADJ 4 9 10 C6 1nF 0603 8 7 R1 VOUT 450mA C4 4.7uF 50V 1210 E3 GND C R2 3 E6 B 90.9K 1 2 R3 1.2V 3 4 1.5V 121K 5 6 1.8V R4 7 8 2.0V 140K 9 10 R5 2.5V 11 12 3.3V 191K 13 14 R6 5.0V 15 16 USER SELECT 274K B JP1 R7 442K NOTE: UNLESS OTHERWISE SPECIFIED R8 1. ALL RESISTORS ARE 0402. ALL CAPACITORS ARE 0402. OPT 0603 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. A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 E1 PWRGD 60.4K JP2 SHDN C3 4.7uF 50V 1210 R9 60.4K 2 OFF E5 R12 499K 0603 4 3 TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC A 45V, 500mA MICROPOWER LDO WITH PRECISION CURRENT LIMIT AND POWER GOOD SIZE IC NO. N/A DATE: LT3065EDD DEMO CIRCUIT 2072A 2 SHEET Monday, February 24, 2014 2 REV. 1 1 OF 1