REVISION HISTORY ECO VIN VIN E2 GND EN+ ON OFF C2 10uF 50V 1210 R1 1.0M 5% 1 2 3 E3 R7 EN 1 2 3 ON OFF JP2 E4 10 C+ 7 R9 VOUT APPROVED C3 10uF 50V 1210 GND E9 EN+ 12 R3 909K R4 316K R5 174K C6 10uF 50V 1210 R6 OPT R8 1.0M 5% 13 VIN C7 OPT 50V 0603 MODE BURST CONT FREQ JP3 1 2 3 VOUT ( - VIN ) 100mA E8 CLDO + DATE M. MERCHANT 03 - 12 - 12 E7 VOUT 6 R2 1.91M 1K E5 VIN VIN C5 OPT 50V 0603 1K EN - C4 1uF 50V 1206 11 1 JP1 EN+ PRODUCTION FAB LDO + 50mA E10 GND 24V 12V 5V 3.3V OPT C1 4.7uF 50V 1210 4.5V - 32V DESCRIPTION 2 U1 LTC3260EMSE VIN E1 REV EN- JP5 LDO+ R10 1.0M 5% 14 MODE 15 BYP+ 16 C8 0.01uF 25V MODE C9 OPT 50V 0603 R12 ADJ+ LDO - R11 100K E11 5 R13 1.91M 1K R14 909K R15 316K R16 174K C10 10uF 50V 1210 R17 OPT E6 8 NC 9 NC E12 GND -24V -12V -5V -3.3V OPT GND LDO 50mA JP6 LDO2 R19 1.0M FREQ 1 2 3 4 50KHz 200KHz 500KHz JP4 RT GND 17 ADJ- 4 BYP- 3 R20 200K CUSTOMER NOTICE NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE 0402, 1%, 1/16W ALL CAPACITORS ARE 0402, 10% 2. INSTALL SHUNTS AS SHOWN. R18 100K C11 0.01uF 25V LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. APPROVALS PCB DES. APP ENG. TECHNOLOGY NC MARTY M. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP SIZE N/A SCALE = NONE DATE: IC NO. REV. LTC3260EMSE DEMO CIRCUIT 1793A 03 - 12 - 12 2 SHEET 1 OF 1 BILL OF MATERIALS Linear Technology Corporation DEMO BD. #1793A-2 QTY- 200 LTC3260EMSE ENGR : M. Merchant Low Noise Dual Supply Inverting Charge Pump Item Qty Reference 3/15/2012 Part Description Manufacturer / Part # NUMBER OF BOARDS = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1 4 1 0 2 3 2 2 2 2 0 3 2 1 1 3 1 2 6 8 4 C1 C2,C3,C6,C10 C4 C5,C7,C9 (OPT) C8,C11 R1,R8,R10 R2,R13 R3,R14 R4,R15 R5,R16 R6,R17 (OPT) R7,R9,R12 R11,R18 R19 R20 JP1-JP3 JP4 JP5,JP6 JP1-JP6 E1,E2,E7-E12 E3-E6 22 23 24 25 1 4 1 2 U1 MH1-MH4 CAP CER 4.7UF 50V X7R 10% 1210 CAP CER10UF 50V X7S 10% 1210 CAP CER 1.0UF 50V X5R 10% 1206 CAP CER 0603 50V CAP CER 0.01UF 25V X7R 10% 0402 RES 1.0M OHM 1/16W 5% 0402 SMD RES, 1.91M OHM 1/16W 1% 0402 SMD RES 909K OHM 1/16W 1% 0402 SMD RES 316K OHM 1/16W 1% 0402 SMD RES 174K OHM 1/16W 1% 0402 SMD RES 0402 SMD RES 1.0K OHM 1/16W 1% 0402 SMD RES 100K OHM 1/16W 1% 0402 SMD RES 1.0M OHM 1/16W 1% 0402 SMD RES 200K OHM 1/16W 1% 0402 SMD HEADER, 3 PIN 1 ROW .079CC HEADER, 4 PIN 1 ROW .079CC HEADER, 2X5 PINS, 2MM SHUNT, 2mm TP, TURRET, 0.094", PBF TURRET, 0.061 DIA LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP STAND-OFF, NYLON 0.375" TALL FAB,PRINTED CIRCUIT BOARD STENCILS - TOP & BOTTOM Kit Qty Pkg Qty Balance 225 MURATA, GRM32ER71H475KA88L TDK, C3225X7S1H106K MURATA, GRM31CR61H105KA61L OPT MURATA, GRM155R71E103KA01D VISHAY, CRCW04021M00JNED VISHAY, CRCW04021M91FKED VISHAY, CRCW0402909KFKED VISHAY, CRCW0402316KFKED VISHAY, CRCW0402174KFKED OPT VISHAY, CRCW04021K00FKED VISHAY, CRCW0402100KFKED VISHAY, CRCW04021M00FKED VISHAY, CRCW0402200KFKED SAMTEC, TMM-103-02-L-S SAMTEC, TMM-104-02-L-S SAMTEC, TMM-105-02-L-D SAMTEC, 2SN-KB-G MILL-MAX, 2501-2-00-80-00-00-07-0 MILL-MAX, 2308-2-00-80-00-00-07-0 225 900 225 0 450 675 450 450 450 450 0 675 450 225 225 675 225 450 1350 1800 900 LINEAR TECH., LTC3260EMSE#PBF KEYSTONE, 8832 (SNAP ON) DEMO CIRCUIT 1793A-2 STENCIL, DC1793A-2 225 900 225 2 -675 -1350 -900 TOTAL Page 1 - of - 1 BILL OF MATERIALS DEMO BD. #1793A Linear Technology Corporation LTC3260EMSE Item Qty Reference 1 2 3 4 4 1 2 1 C2,C3,C6,C10 C4 R11,R18 U1 5 6 7 8 9 10 11 12 13 14 15 1 0 2 3 2 2 2 0 3 1 1 C1 C5,C7,C9 (OPT) C8,C11 R1,R8,R10 R2,R13 R3,R14 R5,R16 R6,R17 (OPT) R7,R9,R12 R19 R20 17 18 19 20 21 22 3 1 2 6 8 4 JP1-JP3 JP4 JP5,JP6 JP1-JP6 E1,E2,E7-E12 E3-E6 Part Description Manufacturer / Part # REQUIRED CIRCUIT COMPONENTS: CAP CER 10UF 50V X7S 10% 1210 CAP CER 1.0UF 50V X5R 10% 1206 RES 100K OHM 1/16W 1% 0402 SMD LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP TDK, C3225X7S1H106K MURATA, GRM31CR61H105KA61L VISHAY, CRCW0402100KFKED LINEAR TECH., LTC3260EMSE#PBF ADDITIONAL DEMO BOARD CIRCUIT COMPONENTS: CAP CER 4.7UF 50V X7R 10% 1210 CAP CER 0603 50V CAP CER 0.01UF 25V X7R 10% 0402 RES 1.0M OHM 1/16W 5% 0402 SMD RES, 1.91M OHM 1/16W 1% 0402 SMD RES 909K OHM 1/16W 1% 0402 SMD RES 174K OHM 1/16W 1% 0402 SMD RES 0402 SMD RES 1.0K OHM 1/16W 1% 0402 SMD RES 1.0M OHM 1/16W 1% 0402 SMD RES 200K OHM 1/16W 1% 0402 SMD MURATA, GRM32ER71H475KA88L OPT MURATA, GRM155R71E103KA01D VISHAY, CRCW04021M00JNED VISHAY, CRCW04021M91FKED VISHAY, CRCW0402909KFKED VISHAY, CRCW0402174KFKED OPT VISHAY, CRCW04021K00FKED VISHAY, CRCW04021M00FKED VISHAY, CRCW0402200KFKED HEADER, 3 PIN 1 ROW .079CC HEADER, 4 PIN 1 ROW .079CC HEADER, 2X5 PINS, 2MM SHUNT, 2mm TP, TURRET, 0.094", PBF TURRET, 0.061 DIA SAMTEC, TMM-103-02-L-S SAMTEC, TMM-104-02-L-S SAMTEC, TMM-105-02-L-D SAMTEC, 2SN-KB-G MILL-MAX, 2501-2-00-80-00-00-07-0 MILL-MAX, 2308-2-00-80-00-00-07-0 HARDWARE 1 of 1 DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE DEMO 1793A LTC3260EMSE LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP LOW NOISE DUAL SUPPLY INVERTING CHARGE PUMP VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA VIN = 4.5V – 32V VOUT = - VIN, 100mA LDO + = +3.3V - +24V, 50mA LDO - = -3.3V - 24V, 50mA