3.3 Vin, 200 Vout at 2 mA Reference Design PRD1181 FEATURES Low cost Small Size Simulation results demonstrating stability Reasonable Efficiency DESCRIPTION This design uses a boost converter with quadrupler charge pump. It utilizes an innovative 4 stage charge pump to increase the output voltage of the boost stage by a factor of 4. This enables the use of many parts not rated to the full output voltage. In addition, a cascoded FET (Q1) is used to increase the voltage capability of the ADP1613. This enable us to use a very inexpensive integrated FET boost controller. Table 1. Basic Specifications Spec Value Units Vout 200V Volts Iout 0.002 Amps Tamb Vinmin 55 3.3 degC Volts Vinmax 3.3 Volts Table 2. Simulation results Spec Value Units Vout ripple max 0.043 Volts Ioutstep 0.001 Apk Vout step error 0.279 Volts Rev. 0 Reference designs are as supplied “as is” and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of reference designs. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Analog Devices reserves the right to change devices or specifications at any time without notice. Trademarks and registered trademarks are the property of their respective owners. Reference designs are not authorized to be used in life support devices or systems. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved. Reference Design PRD1181 TABLE OF CONTENTS Features ......................................................................................................................................................................1 Description .................................................................................................................................................................1 Revision History .........................................................................................................................................................2 Schematic ...................................................................................................................................................................3 Bill of Materials..........................................................................................................................................................3 Graphs ........................................................................................................................................................................4 TABLE OF FIGURES Figure 1. Boost Converter with Quadrupler Charge Pump Topology ...................................................................3 Figure 2. Bode Plot ...............................................................................................................................................4 Figure 3. Vout Transient Response ........................................................................................................................5 REVISION HISTORY 11/09/2009—Revision 1: Initial Version 11/20/2009—Revsion2: Corrected Schematic Rev. 1 | Page 2 of 6 Reference Design PRD1181 SCHEMATIC Figure 1. Boost Converter with Quadrupler Charge Pump Topology BILL OF MATERIALS Table 3. Des Bill of Materials MFG Part Number U1 ADI ADP1613ARMZ-R7 L1 Coilcraft ME3220-332 D1 D2 D3 D4 D5 D6 D7 Diodes Inc. Diodes Inc. Diodes Inc. Diodes Inc. Diodes Inc. Diodes Inc. Diodes Inc. Co1 Co2 Co3 Co4 Cbst1 Cbst2 Cbst3 Component Specs Pkg Qty Area (mm^2) Cost* MSOP-8 1 14.70 $0.700 3mm x 3mm x 2mm SOD123 SOD123 SOD123 SOD123 SOD123 SOD123 SOD123 1 8.00 $0.230 1N4148W 1N4148W 1N4148W 1N4148W 1N4148W 1N4148W 1N4148W Integrated Switching Regulator 3.3uH, 138mOhms, 1.7 Apk 150mA ,100V 150mA ,100V 150mA ,100V 150mA ,100V 150mA ,100V 150mA ,100V 150mA ,100V 1 1 1 1 1 1 1 6.5 6.5 6.5 6.5 6.5 6.5 6.5 $0.060 $0.060 $0.060 $0.060 $0.060 $0.060 $0.060 Murata TDK TDK TDK Murata Murata GRM188R72A104K C3216X7R2E104K C3216X7R2E104K C3216X7R2E104K GRM188R72A104K GRM188R72A104K 0.1uF, 100V, 0603, X7R 0.1uF, 250V, 1206, X7R 0.1uF, 250V, 1206, X7R 0.1uF, 250V, 1206, X7R 0.1uF, 100V, 0603, X7R 0.1uF, 100V, 0603, X7R 0603 1206 1206 1206 0603 0603 1 1 1 1 1 1 1.28 5.1 5.1 5.1 1.28 1.28 $0.031 $0.063 $0.063 $0.063 $0.031 $0.031 Murata GRM188R72A104K 0.1uF, 100V, 0603, X7R 0603 1 1.28 $0.031 Rev. 1 | Page 3 of 6 Reference Design Des Cin MFG PRD1181 Part Number Component Specs Pkg Qty Area (mm^2) LMK212 B7105MG-T NTF3055L108 1uF, 10V, 805, X7R 0805 1 Q1 Taiyo Yuden On Semi 120 mΩ, 2 Vth,60 V SOT223 1 Cv5 Css Rc1 Cc1 Cc0 Rf1a Rf1b Murata Vishay Vishay Vishay Vishay Vishay Vishay GRM188R61A105K 10% tolerance 5% tolerance 10% tolerance 10% tolerance 1% tolerance 1% tolerance 1uF,10V,X5R 100 nF 200 kohm 1.2 nF 10 pF 402 kohm 422 kohm 0603 0402 0402 0402 0402 0805 0805 1 1 1 1 1 1 1 1.30 0.70 0.70 0.70 0.70 0.70 0.70 $0.010 $0.005 $0.005 $0.005 $0.005 $0.005 $0.005 Rf2 Rb0 Vishay Vishay 1% tolerance 5% tolerance 5.11 kohm 1 Ohm 0402 0402 Totals 1 1 27 0.70 0.70 148.0 $0.005 $0.005 1.91 GRAPHS Figure 2. Bode Plot Rev. 1 | Page 4 of 6 2.50 Cost* 50.0 $0.012 0.187 Reference Design PRD1181 Figure 3. Vout Transient Response Rev. 1 | Page 5 of 6 Reference Design PRD1181 NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Error! Unknown document property name. Rev. 1 | Page 6 of 6