1A Low Dropout Positive Regulator

www.DataSheet4U.com ¹ã¶«Ê¡ÕØÇì з绪 18 ºÅ·ç»ªµ×Ó¹¤Ò³ÇÈýºÅÂ¥» TEL:0758-2865088 2865091 FAX:0758-2849749 1A LOW DROPOUT POSITIVE REGULATOR DESCRIPTION & FEATURES ¸ÅÊö¼°Ìصã The FH1117 series of positive adjustable and fixed regulators is designed to provide 1A for applications requiring high efficiency. All internal circuitry is designed to operated down to 800mV input to output differential and the dropout voltage is fully specified as a function of load current. The FH1117 offers current limiting and thermal protection. The on chip trimming adjusts the reference voltage accuracy to 1%. ¡¤ Output current of 1A typical ¡¤ Three-terminal adjustable or fixed ¡¤ 1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5.0V outputs ¡¤ Low dropout of typical 800mV ¡¤ Thermal protection built in ¡¤ Typical 0.015% line regulation ¡¤ Typical 0.01% load regulation ¡¤ Fast transient response ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ³äµçÆ÷ ¸ßЧÂÊÏÔµ÷ÕûÆ ´òÓ¡»ú¼°ÆäËüÍâÉè ͨѶÉ豸 ÍøÂç½Ó¿Ú¨ ¿ìËٲ̬ÏÓ¦ µçÄÔÖ÷°å LCD ÏÔʾÆ÷ DVD ÊÓƵ²¥·Å÷ /¿ª¹Ø ¸ºÔص÷Õû ÏßÐÔµ÷Õû £¨µäÐÍÖ ÄÚÖÃȱ£»¤ £¨µäÐÍÖ 0.015£¥£© 0.01£¥£© µÍѹ²î£¨äÐÖ FH1117 ϵÁÐÈý¶Ë¿É÷¡¢¹Ì¨çÑÕû µÄçÁ÷£¬ ÄÚ²¿ µç·£¬Ñ¹²îÓɸºÔØÁ÷ȶ¨¡ FH1117 ²úÆ· ¾«¶È´ï 1% µç·Éè¼Æ ¿ÉÌṩÏÞ ÔËÓà Á÷¼° ÓÚ È ±£»¤¹¦ ©¹áÌÔÒÉ¿¬£÷Æ 800mA ÊäÈë¡ú ³ö΢ µ÷Õû²Î¿¼ µçѹ ÄÜ£¬ 1A ·Ö ¡¤ ¡¤ Èý¶Ë¿Éµ÷»ò¹Ì¨Êä³ö Êä³öµçÁ÷£¨ÐÍÖ 1A£© 1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5.0V Êä³ö 800mV£© Applications Ӧà ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ ¡¤ PC Motherboard LCD Monitor DVD-Video Player NIC / Switch Telecom Equipment High Efficiency Linear Regulator Printer and other Peripheral Equipment Battery Charger 1A µÍѹ²îÈý¶ËÎÆ÷ Package ·â×°ÀàÐÍ FH1117 Temperature Range ζȷ § Part Number ²úÆ·ÐͺŠFH1117SADJ FH1117S15 FH1117S18 FH1117S25 FH1117S285 FH1117S33 FH1117S5 Packing Type °ü× ÀàÐÍ Tape Tape Tape Tape Tape Tape Tape SOT-223 0°C ~ 125°C FH1117 S 18 T Type ²úÆ·ÐͺŠPackage ·â×°ÐÎʽ S: SOT-223 Packing Type °ü×°ÐÎʽ Voltage ADJ ADJ 15 1.5V 18 1.8V 25 2.5V 285 2.85V 33 3.3V *2005 ÄêµÚ 5V 5 T: Tape ±à´ø B: Bulk É¢×° Page 0 of 4 1 °æ * All Rights Reserved www.DataSheet4U.com ¹ã¶«Ê¡ÕØÇì з绪 18 ºÅ·ç»ªµ×Ó¹¤Ò³ÇÈýºÅÂ¥» TEL:0758-2865088 2865091 FAX:0758-2849749 BLOCK DIAGRAM£¨¹¦ÄÜ¿òͼ£© MAXIMUM RATINGS (Ta=25¡æ ) ×î´ó¶¨Öµ Characteristic ÌØÐÔ²ÎÊý Input Voltage ÊäÈëµçѹ Operating Junction Temperature½áΠStorage Temperature Range´¢´æÎÂ¶È Lead Temperature º¸½ÓÎÂ¶È (soldering, 10 seconds) (Note 1) Symbol ·ûºÅ VIN TJ TSTG Rating ¶î¨Öµ Min ×îС 0 -65 £Max ×î´ó 13 150 150 260 µ¥Î» Unit V °C °C °C Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. POWER DISSIPATION TABLE ºÄÉ¢¹¦ÂÊ Package ¦È JA (°C /W ) Derating factor ( mW/ °C)TA≥25 °C TA≤25 °C Power rating (mW) TA=70 °C Power rating (mW) TA= 85 °C Power rating (mW) SOT-223 136 7.35 919 588 478 Note :¦È JA : Thermal Resistance-Junction to Ambient, DF : Derating factor, Po: Power consumption. Junction Temperature Calculation: TJ = TA + (PD¡Á¦È JA), Po = DF¡Á (TJ -TA) The ¦È JA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow. RECOMMENDED OPERATING CONDITIONS ÍƼöʹÓÃÌõþ Input Voltage ÊäÈëµçѹ Load Current (with adequate heat sinking) ¸ºÔصçÁ÷ Input Capacitor VIN to GND ÊäÈëµçÝ Output Capacitor with ESR of 10Ω max Êä³öµçÈÝ Junction temperature ½áΠSymbol ·ûºÅ VIN IO Min ×îС 2.7 5 1.0 Max ×î´ó 12 £££125 Unit µ¥Î» V mA ¦Ì ¦Ì F F °C 4.7 TJ £- Typical Applications µäÐÍӦüÀý Page 1 of 4 *2005 ÄêµÚ 1 °æ * All Rights Reserved www.DataSheet4U.com ¹ã¶«Ê¡ÕØÇì з绪 18 ºÅ·ç»ªµ×Ó¹¤Ò³ÇÈýºÅÂ¥» TEL:0758-2865088 2865091 FAX:0758-2849749 +Vout 2 VIN 3 Vin ADJ +Vout 2 VOUT Vref VIN FH1117SADJ R1 3 Cin 10uF Vin VOUT Cout 22uF FH1117S-Fix GND/ADJ 1 I Cout 22UF Cin 10UF 1 Iadj R2 Adjustable Voltage Regulator ELECTRICAL CHARACTERISTICS µçÌØÐÔ Unless otherwise specified, ÈçÎÞÌØÊâ˵Ã÷ Parameter Symbol ²ÎÊý ·ûºÅ Reference Voltage ²Î¿¼µçѹ 1.5V 1.8V Output Voltage Êä³öµçѹ 2.5V VOUT 2.85V 3.3V 5V Line Regulation ÏßÐÔµ÷ÕûÂÊ Load Regulation ¸ºÔص÷ÕûÂÊ FH1117 ∆VOI FH1117XXX FH1117 FH1117XXX ∆VOL ∆V Imin IQ ICL VREF Fixed Voltage Regulator ,VIN = VOUT +2V, IO =10 mA, and TJ = 25 °C. Test Conditions Min. Typ. ²âÊÔÌõ¼þ ×îСֵ µäÐÍÖ IO = 10mA, VIN – VOUT = 2V 1.238 1.250 10mA≤IO≤1A,VOUT +1.5V ≤VIN 1.230 1.250 ≤12V IO = 10mA, VIN = 2.5V 1.485 1.500 10mA≤IO≤1A, 3.0V≤VIN ≤12V 1.476 1.500 IO = 10mA, VIN = 3.8V 1.782 1.800 10mA≤IO≤1A, 3.2V≤VIN ≤12V 1.764 1.800 IO = 10mA, VIN = 4.5V 2.475 2.500 10mA≤ IO≤1A, 4.25V≤VIN≤12V 2.450 2.500 IO = 10mA, VIN = 4.85V 2.821 2.850 10mA≤IO ≤1A, 4.35V≤VIN≤12V 2.805 2.850 IO = 10mA, VIN = 5.0V 3.267 3.300 10mA≤IO≤1A, 4.75V≤VIN≤12V 3.235 3.300 IO = 10mA, VIN = 7.0V 4.950 5.000 10mA≤IO≤1A, 6.5V≤VIN ≤12V 4.900 5.000 IO = 10mA, VOUT +1.5V≤ VIN £0.04 ≤12V IO = 10mA, £1.0 VOUT +1.5V≤VIN≤12V 10mA ≤IO≤1A, VIN – VOUT = 3V £0.10 ×î´óÖµ Max. µ¥Î» 1.262 1.270 1.515 1.524 1.818 1.836 2.525 2.550 2.879 2.895 3.333 3.365 5.050 5.100 0.20 6.0 0.40 10.0 1.15 1.30 5 10 £120 0.1 £- Unit V V % mV % mV V mA mA A ¦Ì A %/W dB 10mA≤IO≤1A, VIN = VOUT +1.5V IO = 10mA IO = 1A VIN ≤12V VIN ≤12V VIN – VOUT = 3V IO = 10mA, VIN – VOUT = 2V TA = 25 °C, 30 ms pulse ££££- £££- 1.0 0.8 0.8 1.7 6 1 1.2 50 0.01 75 Dropout Voltageѹ½µ Minimum Load Current ×îС¸ºÔصçÁ÷ (Note 1) Quiescent Current FH1117XXX ¾²Ì¬µçÁ÷ Current LimitµçÁ÷·¶Î§ Adjust Pin Currentµ÷Õû¶Ë µçÁ÷ Thermal RegulationζÈÌØ ÐÔ (Note 2) Ripple rejection (Note 2)ÎƲ¨ ÒÖÆ±È RR fO = 120HZ, 1V RMS, IO = 400mA,VIN – VOUT = 3V 60 Page 2 of 4 *2005 ÄêµÚ 1 °æ * All Rights Reserved www.DataSheet4U.com ¹ã¶«Ê¡ÕØÇì з绪 FAX:0758-2849749 Note 1: For the adjustable device, the minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor divider used to set the output voltage is selected to meet the minimum load current equirement. 18 ºÅ·ç»ªµ×Ó¹¤Ò³ÇÈýºÅÂ¥» TEL:0758-2865088 2865091 Note 2: These parameters, although guaranteed, are not tested in production. SOT-223 ·â×°ÍÐγߴ磨 SOT-223 DIMENSION£© VIN VOUT A/G Page 3 of 4 *2005 ÄêµÚ 1 °æ * All Rights Reserved www.DataSheet4U.com ¹ã¶«Ê¡ÕØÇì з绪 18 ºÅ·ç»ªµ×Ó¹¤Ò³ÇÈýºÅÂ¥» TEL:0758-2865088 2865091 FAX:0758-2849749 Page 4 of 4 *2005 ÄêµÚ 1 °æ * All Rights Reserved