KA78M05 / LM78M05 / MC78M05 3-Terminal 0.5 A Positive Voltage Regulator Features Description • • • • • The KA78M05 / LM78M05 / MC78M05 series of threeterminal positive regulators is available in the TO-220 / DPAK packages, making it useful in a wide range of applications. Output Current up to 0.5 A Output Voltages of 5 V Thermal Overload Protection Short-Circuit Protection Output Transistor Safe Operating Area (SOA) Protection TO-220 GND 1 D-PAK GND 1 1. Input 2. GND 3. Output Ordering Information(1) Product Number Package Packing Method KA78M05TU TO-220 (Dual Gauge) Rail D-PAK Tape and Reel TO-220 (Single Gauge) Rail KA78M05RTM MC78M05CDTX LM78M05CT Operating Temperature 0 to +125°C Note: 1. Refer to below figure for TM / TF suffix of DPAK packing option. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 1 KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator August 2013 INPUT OUTPUT SERIES PASS ELEMENT 1 SOA PROTECTION CURRENT GENERATOR STARTING CIRCUIT 3 REFERENCE VOLTAGE R1 ERROR AMPLIFIER R2 THERMAL PROTECTION GND 2 Figure 1. Block Diagram Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VI RθJC Parameter Unit 35 V TO-220 (TC = +25°C) 2.5 °C/W TO-220 (TA = +25°C) 66 D-PAK (TA = +25°C) 92 Input Voltage (for VO = 5 V) Thermal Resistance, Junction-Case(2) RθJA Thermal Resistance, Junction-Air(2, 3) TOPR Operating Junction Temperature Range TJ(MAX) Maximum Junction Temperature Range TSTG Value Storage Temperature Range °C/W 0 to +125 °C 150 °C -65 to +150 °C Notes: 2. Thermal resistance test board. Size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P) JEDEC standard: JESD51-3, JESD51-7 3. Assume no ambient airflow. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 2 KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator Block Diagram Refer to the test circuits, 0 < TJ < +125°C, IO = 350 mA, VI = 10 V, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ = +25°C 4.8 5.0 5.2 Output Voltage IO = 5 mA to 350 mA, VI = 7 V to 20 V 4.75 5.00 5.25 ΔVO Line Regulation(4) IO = 200 mA TJ = +25°C ΔVO Load Regulation(4) IQ Quiescent Current VO ΔIQ Quiescent Current Change 100 VI = 8 V to 25 V 50 IO = 5 mA to 0.5 A, TJ = +25°C 100 IO = 5 mA to 200 mA, TJ = +25 °C 50 TJ = +25°C 4.0 6.0 IO = 5 mA to 350 mA 0.5 IO = 200 mA, VI = 8 V to 25 V 0.8 Output Voltage Drift IO = 5 mA TJ = 0 to +125°C VN Output Noise Voltage RR ΔV/ΔT VI = 7 V to 25 V Unit V mV mV mA mA -0.5 mV/°C f = 10 Hz to 100 kHz 40 μV/Vo Ripple Rejection f = 120 Hz, IO = 300 mA VI = 8 V to 18 V, TJ = +25 °C 80 dB VD Dropout Voltage TJ = +25°C, IO = 500 mA 2 V ISC Short-Circuit Current TJ = +25°C, VI = 35 V 300 mA IPK Peak Current TJ = +25°C 700 mA Note: 4. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 3 KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator Electrical Characteristics KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator Typical Applications KA78M05 LM78M05 MC78M05 1 VI VO CO 2 CI 3 0.3 μF 0.1 μF Figure 2. Fixed-Output Regulator 1 VI CI KA78M05 LM78M05 MC78M05 2 0.33 μF IO 3 CO 0.1 μF VXX IO R1 Vxx IO = R +IO 1 Figure 3. Constant-Current Regulator Notes: 5. CI is required if the regulator is located an appreciable distance from the power supply filter. 6. Although no output capacitor is needed for stability, it does improve transient response. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 4 3 0.33 μF VO VXX CO 2 CI 0.1 μF IO KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator KA78M05 LM78M05 MC78M05 1 VI R1 IR1 ≥ 5IO VO = VXX (1+R2/R1) +IOR2 R2 Figure 4. Circuit for Increasing Output Voltage 1 VI CI KA78M05 LM78M05 MC78M05 3 VO 2 CO 0.33 μF 2 7 6 0.1 μF LM741 3 10 kΩ 4 Figure 5. Adjustable Output Regulator (7 to 30 V) 13 V < VI < 25 V 1 VI C1 0.33 μF KA78M05 LM78M05 MC78M05 2 3 VO VXX R4 910 Ω R5 9.1 kΩ 6 -7 V < -VI < 17 V C2 7 _ 2 LM741 + 3 R3 R1 4 0.1μF 10 kΩ VO = VXX R4 R1 Figure 6. 0.5 to 10 V Regulator © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 5 KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator Physical Dimensions TO-220 (SINGLE GAUGE) Figure 7. TO-220, MOLDED, 3-LEAD, JEDEC VARIATION AB (ACTIVE) Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/TO/TO220B03.pdf. For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area: http://www.fairchildsemi.com/packing_dwg/PKG-TO220B03_TC.pdf. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 6 KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator Physical Dimensions (Continued) TO-220 (DUAL GAUGE) Figure 8. TO220, MOLDED, 3-LEAD, NON-JEDEC VARIATION AB [DUAL GUAGE] Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/TO/TO220Y03.pdf. For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area: http://www.fairchildsemi.com/packing_dwg/PKG-TO220Y03.pdf. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 7 KA78M05 / LM78M05 / MC78M05 — 3-Terminal 0.5 A Positive Voltage Regulator Physical Dimensions (Continued) D-PAK Figure 9. 3-LEAD, TO-252, JEDEC TO-252 VAR. AB, SURFACE MOUNT (DPAK) Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/TO/TO252D03.pdf. For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area: http://www.fairchildsemi.com/packing_dwg/PKG-TO252D03.pdf. © 2001 Fairchild Semiconductor Corporation KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 www.fairchildsemi.com 8 TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks. 2Cool¥ AccuPower¥ AX-CAP®* BitSiC¥ Build it Now¥ CorePLUS¥ CorePOWER¥ CROSSVOLT¥ CTL¥ Current Transfer Logic¥ DEUXPEED® Dual Cool™ EcoSPARK® EfficientMax¥ ESBC¥ FPS¥ F-PFS¥ FRFET® SM Global Power Resource GreenBridge¥ Green FPS¥ Green FPS¥ e-Series¥ Gmax¥ GTO¥ IntelliMAX¥ ISOPLANAR¥ Making Small Speakers Sound Louder and Better™ MegaBuck¥ MICROCOUPLER¥ MicroFET¥ MicroPak¥ MicroPak2¥ MillerDrive¥ MotionMax¥ mWSaver® OptoHiT¥ OPTOLOGIC® OPTOPLANAR® ® Fairchild® Fairchild Semiconductor® FACT Quiet Series¥ ® FACT FAST® FastvCore¥ FETBench¥ Sync-Lock™ ® PowerTrench® PowerXS™ Programmable Active Droop¥ QFET® QS¥ Quiet Series¥ RapidConfigure¥ ¥ Saving our world, 1mW/W/kW at a time™ SignalWise¥ SmartMax¥ SMART START¥ Solutions for Your Success¥ SPM® STEALTH¥ SuperFET® SuperSOT¥-3 SuperSOT¥-6 SuperSOT¥-8 SupreMOS® SyncFET¥ ®* TinyBoost® ® TinyBuck TinyCalc¥ TinyLogic® TINYOPTO¥ TinyPower¥ TinyPWM¥ TinyWire¥ TranSiC¥ TriFault Detect¥ TRUECURRENT®* PSerDes¥ ® UHC Ultra FRFET¥ UniFET¥ VCX¥ VisualMax¥ VoltagePlus¥ XS™ * Trademarks of System General Corporation, used under license by Fairchild Semiconductor. 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