REVISION HISTORY ECO REV DESCRIPTION 2 APPROVED PRODUCTION DATE 4-9-10 EDWIN L. U1 LT3022EDHC 12 13 14 * CIN 10uF 16V 1206 RSD 100K 1% 6 7 E5 1 OFF GND SHDN PGND 9 698 R2 806 R3 5 17 2 R7 COUT + 10uF 16V 1206 1% ADJ ON 3 4 NC NC NC NC NC PGND PGND JP1 1 2 8 15 16 11 10 ** + C1 33uF 16V 6032 AGND AGND E2 OUT OUT 3 VIN 1V - 10V IN IN IN JP2 R4 1 2 0.9V 1k 3 4 1.0V 5 6 7 8 1% 9 10 R5 1.62K 11 12 1.3k 1% SHDN E4 R6 VOUT 1A MAX GND E3 1% 1% R1 200 1% C2 (OPT) 7343 E1 1.2V 1.5V 1.8V USER SELECT (OPT) 1% * 0.95V IS THE MINIMUM INPUT VOLTAGE AT WHICH THE LT3022EDHC WILL OPERATE. THE MINIMUM VOLTAGE FOR A SPECIFIC REGULATOR CIRCUIT DEPENDS ON THE OUTPUT VOLTAGE (PLUS THE DROPOUT VOLTAGE). ** CAPACITOR C1 IS AN OPTIONAL PART. IT WAS INSERTED ON THE DC932A TO DAMPEN THE (POSSIBLE) RINGING VOLTAGE DUE TO THE USE OF LONG INPUT LEADS. ON A NORMAL, TYPICAL PCB, WITH SHORT TRACES, THE CAPACITOR IS NOT NEEDED. NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN 0402. ALL CAPACITORS ARE IN MICROFARADS. 2. INSTALL SHUNTS AS SHOWN. CUSTOMER NOTICE CONTRACT NO. LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; TECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. HZ VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL EDWIN L. TITLE: SCHEMATIC ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only LOW VOLTAGE LDO LINEAR REGULATOR SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. N/A DATE: IC NO. REV LT3022EDHC 2 DEMO CIRCUIT 932A Monday, April 26, 2010 SHEET 1 OF 1