5 4 3 2 1 2 E1 RUN ON OFF 2 7 6 5 C3 1nF EN 3 1 E3 LDOOUT GND GND LDOIN GND C VIN C1 4.7uF 25V 0805 BYP 4 E2 VOUT 15V * C5 1uF 25V C4 1uF 25V E4 C GND 9 C2 2.2uF 25V 0805 JP1 D BSTOUT SW L1 10uH 3 VIN 2.7V - 4.8V 1 COPPER BUSSMANN SD3110-100-R D 8 U1 LT3048EDC-15 * B Vin (V) Iout (mA) 2.7 19 NOTE: UNLESS OTHERWISE SPECIFIED 3.3 22 1. ALL RESISTORS ARE 0603. ALL CAPACITORS ARE 0603. 3.6 24 4.8 37 CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; TECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL TITLE: SCHEMATIC APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A B 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only A LOW NOISE 15V BIAS GENERATOR SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 IC NO. N/A DATE: REV. LT3048EDC-15 DEMO CIRCUIT 2120A Thursday, April 03, 2014 2 2 SHEET 1 1 OF 1