To our customers, Old Company Name in Catalogs and Other Documents On April 1st, 2010, NEC Electronics Corporation merged with Renesas Technology Corporation, and Renesas Electronics Corporation took over all the business of both companies. Therefore, although the old company name remains in this document, it is a valid Renesas Electronics document. We appreciate your understanding. Renesas Electronics website: http://www.renesas.com April 1st, 2010 Renesas Electronics Corporation Issued by: Renesas Electronics Corporation (http://www.renesas.com) Send any inquiries to http://www.renesas.com/inquiry. Notice 1. 2. 3. 4. 5. 6. 7. All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website. Renesas Electronics does not assume any liability for infringement of patents, copyrights, or other intellectual property rights of third parties by or arising from the use of Renesas Electronics products or technical information described in this document. No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights of Renesas Electronics or others. You should not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples. 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Further, you may not use any Renesas Electronics product for any application for which it is not intended without the prior written consent of Renesas Electronics. Renesas Electronics shall not be in any way liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for an application categorized as "Specific" or for which the product is not intended where you have failed to obtain the prior written consent of Renesas Electronics. The quality grade of each Renesas Electronics product is "Standard" unless otherwise expressly specified in a Renesas Electronics data sheets or data books, etc. "Standard": 8. 9. 10. 11. 12. Computers; office equipment; communications equipment; test and measurement equipment; audio and visual equipment; home electronic appliances; machine tools; personal electronic equipment; and industrial robots. "High Quality": Transportation equipment (automobiles, trains, ships, etc.); traffic control systems; anti-disaster systems; anticrime systems; safety equipment; and medical equipment not specifically designed for life support. "Specific": Aircraft; aerospace equipment; submersible repeaters; nuclear reactor control systems; medical equipment or systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life. You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics, especially with respect to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or damages arising out of the use of Renesas Electronics products beyond such specified ranges. Although Renesas Electronics endeavors to improve the quality and reliability of its products, semiconductor products have specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Further, Renesas Electronics products are not subject to radiation resistance design. Please be sure to implement safety measures to guard them against the possibility of physical injury, and injury or damage caused by fire in the event of the failure of a Renesas Electronics product, such as safety design for hardware and software including but not limited to redundancy, fire control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because the evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or system manufactured by you. Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product. Please use Renesas Electronics products in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of Renesas Electronics. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products, or if you have any other inquiries. (Note 1) "Renesas Electronics" as used in this document means Renesas Electronics Corporation and also includes its majorityowned subsidiaries. (Note 2) "Renesas Electronics product(s)" means any product developed or manufactured by or for Renesas Electronics. M62294FP 3.3 V, 2.0 V Fixed 2-Output Voltage DC/DC Converter REJ03D0854-0200 Rev.2.00 Jun 14, 2006 Description M62294FP is 3.3 V and 2.0 V fixed stable 2-output step-down DC/DC converter. It is possible to simplify peripheral circuit and to design compact and low cost sets because this device includes peripheral devices in small size 8-pin package. The IC also has Reset circuit with time delay that monitors power supply (VCC = 5 V) and one regulator output (Vout1 = 3.3 V; IN1 terminal), therefore an application system is protected system errors. Especially this is most suitable for application system with microprocessor and ASIC. Features * * * * * * 3.3 V and 2.0 V step-down converter 4 to 15 V wide input supply voltage (VCC = 5 V typ.) Reset circuit with time delay monitors Supply voltage (VCC = 5 V) and regulator output (3.3 V) 110 kHz fixed frequency oscillator without peripheral devices 8-pin SOP package Application Application system with microprocessor and ASIC Block Diagram Cd 6 VCC 4 IN1; 3.3 V 25 A Vref 1.25 V + - - Comparator (3.3 V detect) Oscillator (110 kHz) Cout1 1 + 7 RESET + Comparator (VCC detect) 0.6 A VCC - + PWM comp. + - OP Amp + - OP Amp 8 IN1 (3.3 V) Rev.2.00 Jun 14, 2006 page 1 of 6 3 Cout2 - 5 IN2 (2.0 V) + PWM comp. 2 GND M62294FP Pin Arrangement M62294FP Cout1 1 8 IN1 GND 2 7 RESET Cout2 3 6 Cd VCC 4 5 IN2 (Top view) Outline: PRSP0008DA-A (8P2S-A) Rev.2.00 Jun 14, 2006 page 2 of 6 M62294FP Absolute Maximum Ratings (Ta = 25C, unless otherwise noted) Item Supply voltage Symbol VCC Ratings 16 Unit V Output current (DC/DC converter block) Output current (Reset block) IO IORESET 30 6 mA mA Power dissipation Thermal derating Pd K 440 4.4 mW mW/C Operating temperature Storage temperature Topr Tstg -20 to +85 -40 to +125 C C Conditions ch1, ch2 Ta = 25C Ta > 25C Electrical Characteristics (Ta = 25C, VCC = 5 V, unless otherwise noted) Symbol Min Limits Typ Max Unit Supply voltage Supply current VCC ICC 4.0 5.0 1.5 15 2.8 V mA DC/DC converter block Error Output voltage Amp. VO1 3.15 3.30 3.45 V Line regulation VO2 Vreg-L 1.90 2.00 5 2.10 15 mV ch2 output VCC = 4 to 12 V Input current 1 Input current 2 Iin Iin 150 100 450 300 A A ch1 ch2 Oscillator frequency Maximum on duty fOSC TDUTY 65 110 90 160 kHz % Output leakage current Output saturation voltage ICL Vsat -1 1.2 1 2.0 V V VCC = 12 V, VC = 12 V IO = 10 mA, Darlington connection Vs1 3.6 3.8 4.0 V VCC = 5 V detection Detecting voltage 2 Vs1 Vs2 30 2.46 50 2.58 80 2.70 mV V Hysteresis voltage 2 Cd output current Vs2 IPD 30 -1.1 50 -0.6 80 -0.3 mV A Delay time RESET output current tpd IOC 5 -40 10 -25 20 -17 ms A RESET low voltage VOL 0.2 VO1 V RESET high voltage VOH 0.8 VO1 V Block All Blocks Oscillator Output Item Reset circuit block Reset Detecting voltage 1 circuit Hysteresis voltage 1 Rev.2.00 Jun 14, 2006 page 3 of 6 Test Condition Without load ch1 output ch1 output (3.3 V) detection Cd = 4700 pF VCC = 5 V, VO = 1/2 x VCC IORESET = 4 mA M62294FP VCC Reset Block Timing Chart 5V 3.85 V 3.80 V 0V ch1 output (VO1) t 3.3 V 2.63 V 2.58 V 0V RESET output t note: VO1 tpd tpd tpd 0V t -3 tpd: RESET delay time*******************tpd (ms) 2.13 x 10 x Cd (pF) Rev.2.00 Jun 14, 2006 page 4 of 6 M62294FP Application Circuit (3.3 V and 2.0 V 2-output Voltage DC/DC Converter) VIN (5 V) + Cin 4 VCC VOUT1 (3.3 V) Co1 + R2 8 IN1 Q1 Cout1 1 R1 M62294FP D1 L1 R4 VOUT2 (2.0 V) Co2 Q2 Cout2 3 + R3 5 IN2 RESET Cd GND 7 6 2 L2 3.3 V Line 2.0 V Line MCU etc. The Expression of Circuit Constants Constants TON TOFF (TON + TOFF) MAX TOFF (MIN) TON (MAX) L (MIN) lpk Expressions VO + VF VIN - VCE (sat) - VO 1 fOSC: 110 kHz (VCC = 5 V) fOSC (TON + TOFF) / ( 1 + TON TOFF ) 1 - TOFF fOSC (VIN - VCE (sat) - VO) x TON (MAX) lO lO + 1 lO 2 Note: VF: Forward voltage drop of an external diode. Vsat: Output saturation voltage of an external switching transistor. IO: Set to 1/3 to 1/5 of maximum output current. Choose an external transistor, diode and inductor with peak current rating approximately greater than "Ipk". Rev.2.00 Jun 14, 2006 page 5 of 6 D2 M62294FP Package Dimensions JEITA Package Code P-SOP8-4.4x5-1.27 RENESAS Code PRSP0008DA-A MASS[Typ.] 0.07g E 5 *1 HE 8 Previous Code 8P2S-A F 1 NOTE) 1. DIMENSIONS "*1" AND "*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET. 4 Index mark c A2 *2 A1 D L A Reference Symbol *3 e bp y D E A2 A1 A bp c Detail F HE e y L Rev.2.00 Jun 14, 2006 page 6 of 6 Dimension in Millimeters Min Nom Max 4.8 5.0 5.2 4.2 4.4 4.6 1.5 0.05 1.9 0.35 0.4 0.5 0.13 0.15 0.2 0 10 5.9 6.2 6.5 1.12 1.27 1.42 0.1 0.2 0.4 0.6 Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party. 2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. All information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of publication of these materials, and are subject to change by Renesas Technology Corp. without notice due to product improvements or other reasons. It is therefore recommended that customers contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor for the latest product information before purchasing a product listed herein. The information described here may contain technical inaccuracies or typographical errors. Renesas Technology Corp. assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors. Please also pay attention to information published by Renesas Technology Corp. by various means, including the Renesas Technology Corp. Semiconductor home page (http://www.renesas.com). 4. When using any or all of the information contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corp. assumes no responsibility for any damage, liability or other loss resulting from the information contained herein. 5. Renesas Technology Corp. semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. 6. The prior written approval of Renesas Technology Corp. is necessary to reprint or reproduce in whole or in part these materials. 7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. 8. 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