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| 1A Positive Voltage Regulator LM7833/LM7847 1A Positive Voltage Regulator General Description * The TCI LM78XX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications that required supply current up to 1A. * The LM78M is available in D-PACK (TO-252) and TO-220 packages. . D-PACK (TO-252) TO-220 Features * * * * * * Output Current up to 1A Fixed output voltage of 3.3V and 4.7V available Thermal overload shutdown protection Short circuit current limiting Output transistor SOA protection RoHS Compliance Applications * * * * High Efficiency Linear Regulator Post Regulation for Switching Supply Microprocessor Power Supply Mother Board Ordering Information TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com Tel: Fax: (800)-TAITRON (800)-824-8766 (800)-TAITFAX (800)-824-8329 (661)-257-6060 (661)-257-6415 Rev. A/DX 2007-06-04 Page 1 of 6 1A Positive Voltage Regulator LM7833/LM7847 Pin Configuration Outline: D D-PACK (TO-252) Outline: T TO-220 Block Diagram Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 2 of 6 1A Positive Voltage Regulator LM7833/LM7847 Absolute Maximum Ratings Symbol VIN IOUT PD TJ TOPR TSTG Description VOUT=3.3~18V VOUT=20~24V Output Current D-PACK (TO-252) Power Dissipation TO-220 Junction Temperature Operating Temperature Range Storage Temperature Range Input Voltage Ratings 35 40 1 Internally Limited 150 -20 ~ 150 -55 ~ 150 Unit V A mW C C Note: 1. Absolute maximum ratings are stress ratings only and functional device operation is not implied. The device could be damaged beyond Absolute maximum ratings. 2. The maximum steady state usable output current are dependent on input voltage, heat sinking, lead length of the package and copper pattern of PCB. The data are showed as electrical characteristics table represents pulse test conditions with junction temperatures specified at the initiation of test. Electrical Characteristics (TJ=25 C, PD15W, unless otherwise specified) For LM7833 (VIN=5.8V, IOUT=0.5A, C1=0.33F, CO =0.1F) Symbol VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Description Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage LM7833 Min. Typ. Max. Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V Test Conditions IOUT=5mA-1.0A 5.8VVIN18.3V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 5.8VVIN18.3V 5.8VVIN18.3V, IOUT=1.0A IOUT1.0A 5.8VVIN18.3V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 6.3VVIN16.3V, f=120Hz VIN=35V Rev. A/DX 2007-06-04 3.168 3.135 - 3.30 55 -0.4 57 1.8 250 2.0 3.432 3.465 33 17 33 33 8.0 1.0 0.5 - www.taitroncomponents.com Page 3 of 6 1A Positive Voltage Regulator LM7833/LM7847 For LM7847 (VIN=9.7V, IOUT=0.5A, C1=0.33F, CO =0.1F) LM7847 Symbol Description Min. Typ. Max. Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V Test Conditions IOUT=5mA-1.0A 7.2VVIN19.7V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 7.2VVIN19.7V 7.2VVIN19.7V, IOUT=1.0A IOUT1.0A 7.2VVIN19.7V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 7.7VVIN17.7V, f=120Hz VIN=35V - VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage 4.512 4.465 62 - 4.70 40 -0.6 80 1.8 250 2.0 4.888 4.935 47 24 47 47 8.0 1.0 0.5 - Typical Application Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 4 of 6 1A Positive Voltage Regulator LM7833/LM7847 Dimensions in mm (inches) D-PACK (TO-252) TO-220 Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 5 of 6 1A Positive Voltage Regulator LM7833/LM7847 How to contact us: US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162 Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415 Email: taitron@taitroncomponents.com Http://www.taitroncomponents.com TAITRON COMPONENTS MEXICO, S.A .DE C.V. BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P. 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 TAITRON COMPONETS INCORPORATED E REPRESENTACOES DO BRASIL LTDA RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAUDE - SAO PAULO-SP 04035-001 BRAZIL Tel: +55-11-5574-7949 Fax: +55-11-5572-0052 TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE CROSS REGION PLAZA, 899 LINGLING ROAD, SUITE 18C, SHANGHAI, 200030, CHINA Tel: +86-21-5424-9942 Fax: +86-21-5424-9931 Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 6 of 6 |
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