R1501x Series 1A 24V Input VR The R1501x Series are CMOS-based voltage regulators featuring 1A output current and 24V input voltage. The R1501x series provides high input voltage operation and low on-resistance (at VOUT = 10V, below 0.6) because of using CMOS transistor. In addition to a fold-back protection circuit built into conventional regulators, R1501x contains a thermal shutdown circuit. Besides the low supply current by CMOS, the operating temperature is -40C to 105C and the maximum input voltage is 24V, the R1501x series are very suitable for power source of car accessories. FEATURES * Supply Current (ISS) ************************Typ. 70A (VIN=24V) * Standby Current (Istandby) *****************Typ. 0.1A (VIN=24V, CE="L") * Dropout Voltage (VDIF) ********************Typ. 0.575V (IOUT=1A, VOUT=5V) * Input Voltage Range (VIN) ***************3V to 24V (Absolute maximum rating: 36V) * Ripple Rejection(RR) ********************Typ. 60dB (f=1kHz, VOUT < = 6V) Typ. 50dB (f=1kHz, VOUT>6V) * Output Voltage Range (VOUT)**********3.0V to 18.0V (internally fixed) * Output Voltage Accuracy **************** 2% * Temp. coeff of Output Voltage ******************* Typ. 100ppm/C * Line Regulation**************************************** Typ. 0.05%/V * Fold-back Protection Circuit********************* Current limit Typ. 65mA * Thermal Shutdown Circuit *********************** Stops at Typ. 160C. * Packages **************************************************** HSOP-6J, TO-252-5-P2 * Ceramic capacitors can be used. ************ 10F or more (The above shows specification at Topt=25C. Design assurance value at -40C < = Topt < = 105C is also available. For details, please refer to the datasheet.) BLOCK DIAGRAM R1501xxxxB Thermal Shutdown Circuit VDD VOUT Vref Short Current Limit Protection CE GND SELECTION GUIDES Package HSOP-6J TO-252-5-P2 Quantity per Reel Part No. 1,000 pcs R1501S.xxx B-E2-F 3,000 pcs R1501J.xxx B-T1-F PACKAGES (Top View) HSOP-6J 1 1 2 3 4 5 6 5 2 TYPICAL CHARACTERISTIC TO-252-5-P2 R1501x180B 3 VDD GND GND CE GND VOUT Output Voltage vs. Output Current 20.0 4 1 1 2 3 4 5 2 3 4 5 VDD GND GND CE VOUT Output Voltage VOUT (V) 6 .xxx : Specify the output voltage within the range 3.0V (.030.) to 12.0V (.120.) in 0.1V steps and 12.5V (.125.) to 18.0V (.180.) in 0.5V steps. 16.0 VIN=18.5V VIN=19.0V VIN=20.0V 12.0 8.0 4.0 0 0 0.5 1.0 1.5 Output Current IOUT (A) 2.0 ) The GND pin must be wired together when it is mounted on board. APPLICATIONS * Power source for home appliances such as refrigerators, rice cookers, electric water warmers, etc * Power source for car audio equipment, car navigation systems, ETC systems, etc * Power source for laptop personal computers, digital TVs, cordless phones, and private LAN systems for home, etc * Power source for office equipment machines such as copiers, printers, facsimiles, scanners, etc No.EK-184-091101 CMOS Voltage Regulator 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein. 4. The technical information described in this document shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights. 5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us. 6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, firecontainment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products. 7. Anti-radiation design is not implemented in the products described in this document. 8. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information. RICOH COMPANY., LTD. Electronic Devices Company Ricoh presented with the Japan Management Quality Award for 1999. Ricoh awarded ISO 14001 certification. Ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society. The Ricoh Group was awarded ISO 14001 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. Our current aim is to obtain ISO 14001 certification for all of our business offices. http://www.ricoh.com/LSI/ RICOH COMPANY, LTD. 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After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.