QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 650 HIGH VOLTAGE MICROPOWER LINEAR REGULATOR LT3010 DESCRIPTION Demonstration circuit 650 is a high voltage micropower voltage regulator using the LT3010 low dropout linear regulator, which comes in a small 8-Pin MS8 package. DC650 has an input voltage range from 3V to 80V and an output voltage range of 1.22V to 60V. The circuit is capable of delivering 50mA max. DC650 uses low cost ceramic capacitors because the LT3010 can maintain stability with low impedance ceramic output capacitors. Due to its high input voltage range, the DC650 voltage regulator is ideally suited for automotive and industrial applications. Gerber files for this circuit are available. Call the LTC Factory. QUICK START PROCEDURE Demonstration circuit 650 is easy to set up to evaluate the performance of the LT3010 high voltage micropower LDO regulator. Be careful when connecting the test equipment to the board. High voltages are used in the testing of this circuit. Use with caution! Set up the circuit appropriately. Refer to figure 1 for the proper measurement equipment setup. 3. Increase the input voltage to 80V. Again measure Vout; it should be 3.3V +/- 2% (3.23V to 3.37V). 4. Increase the load current to 50 mA. Measure Vout again; it should be 3.3V +/- 3% (3.2V to 3.4V). When finished, set Vin to 6V and Iout to 1 mA. Please follow the procedure outlined below for proper operation. 5. Insert jumper JP1 into the OFF position and move jumper JP2 into the 5V option (the middle position). Re-insert jumper JP1 into the ON position; Vout should be 5V +/- 1% (4.95V to 5.05V). After the test, increase the load current to 5 mA. 6. Increase the input voltage to 80V. Again measure Vout; it should be 5V +/- 2% (4.9V to 5.1V). 7. Increase the load current to 50 mA. Measure Vout again; it should be 5V +/- 3% (4.85V to 5.15V). The test is now complete. Note of Caution: There will be high voltages in testing this circuit. Use with caution. 1. Before proceeding to test, insert jumper JP1 into the OFF position, and insert jumper JP2 into the 3.3V option (the lower position). 2. Apply 4V across Vin (to GND) with 1 mA load current. Insert jumper JP1 into the ON position. Measure Vout; it should be 3.3V +/- 1% (3.26V to 3.34V). After the test, increase the load current to 5 mA. 1 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 650 HIGH VOLTAGE MICROPOWER LINEAR REGULATOR Figure 1. Proper Measurement Equipment Setup 2 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 650 HIGH VOLTAGE MICROPOWER LINEAR REGULATOR 3 5 4 3 2 1 D D NC NC 3 GND 4 SHUTDOWN SHDN VOUT 50mA MAX. E5 GND GND JP2 OFF C 2 1 ON 3 SHUTDOWN JP1 C4 1UF,6.3V E6 LT3010EMS8E C R2 499K,1% E4 6 ADJ 6 C3 220PF 4 NC 2 VOUT R3 316K,1% USERSELECT 5 E3 7 5 3 SHUTDOWN 1 2 R1 1M OUT 1 10UF,100V OPT C2 1UF,100V 1812 IN 5V E2 8 2 GND +C1 U1 3.3V VIN 3V-80V VIN 1 E1 SANYO 100CV10BS R4 169K,1% R5 USER SELECT OPT B B CONTRACT NO. NOTES: UNLESS OTHERWISE SPECIFIED A APPROVALS DRAWN: 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. CHECKED: APPROVED: ENGINEER: TOM G. 2. INSTALL SHUNT ON JP1 & JP2 PIN 1 AND 2. DESIGNER: TECHNOLOGY KIM T. TITLE: SCHEMATIC 4 3 A HIGH VOLTAGE MICROPOWER LINEAR REGULATOR SIZE DWG NO. A DATE: 5 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only DC650A-1 * LT3010EMS8E Friday, June 20, 2003 2 REV A SHEET 1 OF 1 1 BILL OF MATERIALS DC650A-1 Linear Technology Corporation LT3010EMS8E HIGH VOLTAGE MICROPOWER LINEAR REGULATOR ENG: TOM GROSS (23-30) Item Qty Reference 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 1 1 1 5 1 1 2 1 1 1 1 0 1 4 4 C1 C2 C3 C4 E1,E2,E3,E4,E5 JP1 JP2 SHUNTS FOR JP1 & JP2 R1 R2 R3 R4 R5 U1 FOR 4 MTG FOR 4 MTG 6/17/2005 4:25 PM Part Description Manufacture / Part # CAP., ALUM, 10uF 100V 25%,C-SANYO-CV-BS-6.3X7.7 CAP., X7R, 1UF 100V, 10%, 1812 CAP., NPO, 220PF 25V, 10%, 0402 CAP., X5R, 1UF 10V, 20%, 0603 TESTPOINT, TURRET, .064" JMP, 1X3, .079CC JMP, 2X3, .079CC SHUNT, .079" CENTER RES., CHIP 100K 1/16W 5%,0402 RES., CHIP 499K 1/16W 1%,0402 RES., CHIP 316K 1/16W 1%,0402 RES., CHIP 169K 1/16W 1%,0402 RES., CHIP,0402 I.C., LT3010EMS8E, MS8E SCREW, #4-40, 1/4" STANDOFF, #4-40 1/4" SANYO 100CV10BS TAIYO YUDEN, HMK432BJ105KM AVX, 04023A221KAT TAIYO YUDEN, LMK107BJ105MA MILL-MAX, 2308-2 COMM-CON, 2802S-03-G2 COMM-CON, 2202S-06-G2 COMM-CON CCIJ2MM-138G AAC, CR05-104JM AAC, CR05-4993FM AAC, CR05-3163FM AAC, CR05-1693FM OPT LINEAR TECH., LT3010EMS8E ANY MICRO PLASTICS 14HTSP101 NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS. 2. INSTALL SHUNTS ON JP1 & JP2 PIN 1 AND 2. Page 1 - of - 1