A B C D E REVISION HISTORY ECO REV - 1 APPROVED DESCRIPTION PRODUCTION DATE 04/14/10 MOLLY Z. 4 4 VBIAS VO2 HIGH LOW POWER 1 ON 2 3 JP5 R1 49.9K 1% U1 LT3071EUFD 28 EN 1 3 3 LOW 4 FLOAT 4 FLOAT JP2 JP3 27 VBIAS 25 VO2 24 VO1 VIOC 23 E9 VO0 IMON 2 PWRGD MARGA REF/BYP SENSE E4 22 MARGA 0V - 1.2V C3 C6 1000pF 3 0.01uF 5 6 VIN 7 E5 8 CIN1 + 220uF 10V (Opt) CIN2 47uF 10V 1206 IN OUT IN OUT IN OUT IN OUT 19 18 17 16 15 GND GND GND GND GND GND GND GND GND GND 4 GND 9 2V @ 5A FULL SCALE R2 21 1K E3 E6 HIGH 3 PWRGD VIN 1.1V - 3V 2 LOW 2.2uF VIOC 2 HIGH 3 OFF E2 2 VBIAS C1 * 1 VO0 2 JP1 E1 VBIAS VO1 1 4 SEE QUICK START GUIDE FOR VBIAS RANGE VBIAS 1 3 FLOAT * VBIAS 10 11 12 13 14 20 26 29 E7 C7 4.7uF 10V 0805 C4 10uF 10V 0805 C8 2.2uF 10V 0805 2 VOUT 0.8 - 1.8V @ 5A C5 10uF 10V 0805 E8 GND 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. 1 MOLLY Z. C:\PADS PROJECTS\1434A\SCH\1434A_REV1.DSN THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. A B C TECHNOLOGY RB 1 LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY TITLE: SCHEMATIC 5A PROGRAMMABLE 85mV DROPOUT REGULATOR SIZE N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 www.linear.com Phone: (408)432-1900 Fax: (408)434-0507 DATE: D IC NO. REV. LT3071EUFD DEMO CIRCUIT 1434A Tuesday, August 10, 2010 1 SHEET E 1 OF 1