1 2 3 4 5 6 7 8 REVISION HISTORY ECO REV DESCRIPTION 1 PRODUCTION APPROVED DATE M. ZHU 12-14-09 A A R1 OPT U1 LT3032IDE C1 2.2uF 25V 0805 GND B INP OUTP 1 NC JP1 1 2 3 ON OFF 12 4 E3 15 BYPP 3 E1 C2 0.01uF 50V SHDNP GND GND ADJP R5 1M 1% 1.22V OPT. 3.3V 5V 12V 15V 13 R4 787K 1% 2 4 6 8 10 12 14 E2 R3 274K 1% J1 OUTP SELECT R6 88.7K 1% 1 3 5 7 9 11 VINP 2.3V ~ 20V R2 150K 1% 2 OUTP 150mA C3 10uF 25V 1210 E4 GND B * exposed pad solder side R13 OPT *SEE QUICK START GUIDE 9 C6 2.2uF 25V 0805 C GND INN exposed pad solder side OUTN BYPN JP2 ON OFF 1 2 3 10 SHDNN ADJN 5 E8 11 C4 0.01uF 50V J2 OUTN SELECT 8 3 OUTN -150mA C5 10uF 25V 1210 E7 4 TECHNOLOGY TITLE: SCHEMATIC C GND SIZE DATE: 5 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only D DUAL 150mA POSITIVE / NEGATIVE LOW NOISE LOW DROPOUT LINEAR REGULATOR IC NO. A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 2 R12 88.7K 1% CONTRACT NO. LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; K. LAC HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL M. ZHU ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 1 E5 GND CUSTOMER NOTICE D R11 1M 1% 7 INN INN R10 787K 1% 2 4 6 8 10 12 VINN -2.3V ~ -20V 6 R9 274K 1% 1 3 5 7 9 11 16 E6 R8 150K 1% -1.22V OPT. -3.3V -5V -12V -15V R7 OPT LT3032IDE REV 1 DEMO CIRCUIT 1622A Friday, September 28, 2012 6 7 1 OF 2 SHEET 8