KA78RM33 Low Dropout Voltage Regulator
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KA78RM33TSTU (pdf) |
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KA78RM33TU |
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KA78RM33 |
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KA78RM33 Low Dropout Voltage Regulator February 2006 KA78RM33 Low Dropout Voltage Regulator • RNeSgulator • Low Dropout Voltage Max. 0.6V • Over Current Protection, Thermal Shutdown • SOA Protection, Short Circuit Protection The KA78RM33 is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with surface mount type package D-PAK . The dropout voltage of KA78RM33 is below 0.6V in full rated current 0.5A . This regulator has various functions such as an over current protection, a thermal shut down and the SOA Safe operating Area protection. Internal Block Diagram VIN 1 Current Generator Thermal Shutdown Protection Short Circuit Protection Bandgap Reference Error Amp. GND 2 Packages D-PAK SOA Protection 3 VOUT R1 Output Drive TO-220 VIN GND VOUT 2006 Fairchild Semiconductor Corporation KA78RM33 Low Dropout Voltage Regulator Absolute Maximum Ratings Parameter Input Voltage Output Current Thermal Resistance Junction-Air Power Dissipation Junction Temperature Operating Temperature Symbol VIN IO R JA Pd Tj TOPR Value 20 110 Interally limited 150 -25 to +125 Unit V A °C/W °C °C Remark No Heatsink Electrical Characteristics VIN = 5V, IO = 0.25A, TA = 25°C, unless otherwise Parameter Conditions Output Voltage Load Regulation Line Regulation Ripple Rejection Ratio Dropout Voltage Quiescent Current Peak Current Output Noise Voltage Temperature Coefficient of Output Voltage VOUT RLOAD RLINE Vdrop Iq IPK Vn IO = 10mA 5mA < IO < 0.5A 4.3V <VIN < 16V f = 120Hz, VIN = 5V±0.5Vrms IO = 0.5A IO = 0A VIN = 5V 10Hz < f < 100kHz Ordering Information Product Number KA78RM33 KA78RM33TU KA78RM33TSTU KA78RM33RTF KA78RM33RTM Package TO-220 D-PAK Packing Bulk Rail Rail Short Leads Tape & Reel 2K/reel Tape & Reel 2.5K/reel Operating Temperature -25°C to +125°C KA78RM33 Low Dropout Voltage Regulator TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx ActiveArray FASTr Bottomless FPS Build it Now FRFET CoolFET GlobalOptoisolator CROSSVOLT GTO DOME HiSeC EcoSPARK I2C E2CMOS i-Lo EnSigna ImpliedDisconnect FACT IntelliMAX FACT Quiet Series Across the board. Around the world. The Power Programmable Active Droop DISCLAIMER ISOPLANAR LittleFET MICROCOUPLER MicroFET MicroPak MICROWIRE MSX MSXPro OCX OCXPro OPTOPLANAR PACMAN POP Power247 PowerEdge PowerSaver QS QT Optoelectronics Quiet Series RapidConfigure RapidConnect µSerDes ScalarPump SILENT SMART START SPM Stealth SuperFET SuperSOT -3 SuperSOT -6 SuperSOT -8 SyncFET TCM TINYOPTO TruTranslation UHC UniFET VCX Wire FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. |
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