5 4 3 2 1 REVISION HISTORY D ECO REV - 1 APPROVED DESCRIPTION PRODUCTION DATE Molly Z. 11/06/09 D U1 LT3050EDDB E6 1 REF/BYP IMON 12 IMON C1 0.01uF C2 0.1uF 2 R9 11.3K 1% E5 FAULT SHDN 2 3 C4 0.01uF 3 FAULT GND 10 4 5 6 E1 SHDN ADJ IN IN OUT OUT 9 C C5 1uF 50V 0805 CIN 22uF 50V JP1 1.2V JP2 1.5V JP3 1.8V JP4 2.5V JP5 R1 60.4K 1% R2 90.9K 1% R3 121K 1% R4 191K 1% R5 274K 1% 8 7 GND * + R10 1.15K 1% R12 60.4K 1% JP8 E2 11 1 OFF VIN 2V - 45V IMAX C3 0.1uF R11 453K 1% ON C IMIN R8 3.01K 1% 13 3.3V JP6 5V R6 442K 1% JP7 User Select R7 (Opt) E3 C6 2.2uF 25V GND VOUT 100mA C7 (Opt) E4 GND B B * See QSG for details. is optional, For VIN damping ** CIN purposes only. A CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY RB Molly Z. LOW NOISE LINEAR REGULATOR WITH DIAGNOSTIC FUNCTIONS 5 4 3 N/A SCALE = NONE A LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY TITLE: SCHEMATIC SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 1630 McCarthy Blvd. Milpitas, CA 95035 www.linear.com Phone: (408)432-1900 Fax: (408)434-0507 DATE: 2 IC NO. REV. LT3050EDDB DEMO CIRCUIT 1515A Thursday, January 28, 2010 1 SHEET 1 1 OF 1