Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR General Description Features The AS78XX series are three terminal positive regulators designed for a wide variety of applications including local, on-card regulation. · · · The AS78XX are complete with internal current limiting, thermal shutdown protection, and safe-area compensation which make them virtually immune from output overload. If adequate heat sinking are provided, these regulators can deliver output currents up to 1A. · · · · AS78XX Output Current up to 1A Fixed Output Voltages of 5V, 12V and 15V Output Voltage Accuracy of ±4% over the Full Temperature Range Internal Short Circuit Current Limiting Internal Thermal Overload Protection No External Components Output Transistor Safe-area Protection Applications The AS78XX are available in TO-220-3 and TO-252-2 packages. · · · · TO-220-3 High Efficiency Linear Regulator Post Regulation for Switching Supply Microprocessor Power Supply Mother Board TO-252-2 Figure 1. Package Types of AS78XX Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 1 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Pin Configuration T Package (TO-220-3) D Package (TO-252-2) 3 OUTPUT GND 2 GND INPUT 1 INPUT 3 OUTPUT 2 1 Figure 2. Pin Configuration of AS78XX (Top View) Pin Description Pin Number Pin Name Function 1 INPUT Voltage Input 2 GND Ground 3 OUTPUT Voltage Output Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 2 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Functional Block Diagram 1 R9 Q9 INPUT D1 Zener Q14 R16 Q21 Q24 R20 C1 R1 R21 Q18 R17 R12 3 Q6 Q3 Q22 R3 Q11 OUTPUT R2 2 Q10 R18 R7 Q7 Q1 R23 Q4 Q16 R4 R14 Q8 R11 R5 R15 R6 Q23 Q13 Q5 Q2 Q15 R19 C2 Q19 Q17 Q12 R2 R8 Q20 R13 R10 2 GND Figure 3. Functional Block Diagram of AS78XX Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 3 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Ordering Information - AS78XX E1: Lead Free Circuit Type TR: Tape and Reel Blank: Tube Output Voltage 05: 5V 12: 12V 15: 15V Package Temperature Range TO-220-3 to 125oC TO-252-2 -40 -40 to 125oC Package T: TO-220-3 D: TO-252-2 Part Number Tin Lead Marking ID Lead Free Tin Lead Lead Free Packing Type AS7805T-E1 AS7805T-E1 Tube AS7812T-E1 AS7812T-E1 Tube AS7815T-E1 AS7815T-E1 Tube AS7805D-E1 AS7805D-E1 Tube AS7805DTR-E1 AS7805D-E1 Tape & Reel AS7812D-E1 AS7812D-E1 Tube AS7812DTR-E1 AS7812D-E1 Tape & Reel AS7815D-E1 AS7815D-E1 Tube AS7815DTR-E1 AS7815D-E1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 4 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit VIN 35 V TLEAD 260 PD Internally Limited Storage Temperature Range TSTG -65 to 150 ESD (Machine Model) ESD 400 Input Voltage Lead Temperature (Soldering, 10sec) Power Dissipation o C W o C V Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter Operating Junction Temperature Range Symbol Min Max Unit TJ -40 125 oC Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 5 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Electrical Characteristics AS7805 (VIN=10V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.) Parameter Symbol Conditions Output Voltage VOUT TJ=25oC IOUT=5mA to 1A, VIN=7.5V to 20V, PD≤15W Line Regulation VRLINE VIN=7.5 to 20V, IOUT=1A, TJ=25oC Load Regulation VRLOAD Quiescent Current Quiescent Current Change IQ ∆IQ VIN=10V, IOUT=5mA to 1A, VIN=10V Min Typ Max 4.9 5 5.1 4.8 TJ=25oC VIN=8 to 25V, IOUT=500mA, TJ=25oC =25oC Ripple Rejection PSRR IOUT=5mA to 1A, TJ VIN=8 to 18V, f=120Hz, IOUT=500mA Dropout Voltage VDROP ∆VOUT=1%, IOUT=1A, TJ =25oC 5.2 Unit V 7 50 mV 25 100 mV 3.2 6 mA 0.3 0.8 0.08 0.5 mA 73 dB 2 V Output Noise Voltage NO f=10Hz to 100kHz, TA=25oC 10 µV/VO Output Resistance RO f=1kHz 10 mΩ 0.2 A Short Circuit Current Peak Output Current Output Voltage Temperature Coefficient VIN=35V, IPK TA=25oC TJ=25oC 2.2 A ∆VOUT/∆T 0.4 mV/oC (∆VOUT/VOUT)/∆T 80 ppm/oC VIN=10V, AS7812 (VIN=19V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.) Parameter Symbol Min Typ Max TJ=25oC Conditions 11.75 12 12.25 11.5 Output Voltage VOUT IOUT=5mA to 1A, VIN=14.8V to 27V, PD≤15W Line Regulation VRLINE VIN=14.8 to 27V, IOUT=1A, TJ=25oC Load Regulation VRLOAD Quiescent Current Quiescent Current Change IQ ∆IQ o 12.5 Unit V 16 120 mV VIN=19V, IOUT=5mA to 1A, TJ=25 C VIN=19V 25 100 mV 3.4 6 mA o 0.3 0.8 0.08 0.5 VIN=15 to 30V, IOUT=500mA, TJ=25 C =25oC Ripple Rejection PSRR IOUT=5mA to 1A, TJ VIN=15 to 25V, f=120Hz, IOUT=500mA Dropout Voltage VDROP ∆VOUT=1%, IOUT=1A, TJ =25oC mA 60 dB 2 V Output Noise Voltage NO f=10Hz to 100kHz, TA=25oC 10 µV/VO Output Resistance RO f=1kHz 11 mΩ 0.2 A Short Circuit Current Peak Output Current Output Voltage Temperature Coefficient VIN=35V, IPK TA=25oC TJ=25oC 2.2 A ∆VOUT/∆T 0.96 mV/oC (∆VOUT/VOUT)/∆T 80 ppm/oC VIN=19V, Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 6 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Electrical Characteristics (Continued) AS7815 (VIN=23V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.) Parameter Symbol Conditions Output Voltage VOUT TJ=25oC IOUT=5mA to 1A, VIN=17.9 to 30V, PD≤15W Line Regulation VRLINE VIN=17.9 to 30V, IOUT=1A, TJ=25oC Load Regulation VRLOAD =25oC Quiescent Current Quiescent Current Change IQ ∆IQ Ripple Rejection PSRR Dropout Voltage VDROP VIN=22V, IOUT=5mA to 1A, TJ VIN=23V VIN=17.5 to 30V, IOUT=500mA, TJ=25oC TJ=25oC IOUT=5mA to 1A, VIN=18.5 to 28.5V, f=120Hz, IOUT=500mA ∆VOUT=1%, IOUT=1A, TJ=25oC Output Noise Voltage NO f=10Hz to 100kHz, Output Resistance RO f=1kHz Output Voltage Temperature Coefficient Typ Max 14.7 15 15.3 14.4 15.6 18 150 Unit V mV 25 100 mV 3.4 6 mA 0.3 0.8 0.08 0.5 mA 58 dB 2 V 10 µV/VO 12 mΩ =25oC 0.2 A TJ=25oC 2.2 A ∆VOUT/∆T 1.2 mV/oC (∆VOUT/VOUT)/∆T 80 ppm/oC Short Circuit Current Peak Output Current TA=25oC Min VIN=35V, TA IPK VIN=23V, Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 7 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Typical Performance Characteristics 5.050 2.5 AS7805 o TC= -40 C 5.025 AS7805 VIN=10V 5.000 IOUT=10mA o TC= 25 C Output Voltage (V) Peak Output Current (A) 2.0 o TC= 125 C 1.5 1.0 4.975 4.950 4.925 4.900 0.5 4.875 4.850 -40 0.0 3 6 9 12 15 18 21 24 -20 0 40 60 80 100 120 o Figure 4. Peak Output Current vs. Input/Output Differential Voltage Figure 5. Output Voltage vs. Case Temperature 100 6 5 IOUT=0 90 AS7805 VIN=10V 80 AS7812 VIN=19V Ripple Rejection (dB) Quiescent Current (mA) 20 Case Temperature ( C) VIN-VOUT (V) AS7815 VIN=23V 4 3 2 AS7805 70 60 50 40 30 20 1 10 0 -40 -20 0 20 40 60 80 100 0 10 120 100 1k 10k 100k 1M Frequency (Hz) o Case Temperature ( C) Figure 7. Ripple Rejection vs. Frequency Figure 6. Quiescent Current vs. Case Temperature Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 8 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Typical Performance Characteristics (Continued) 30 2.5 AS7805 Package: TO-220-3 2 Heatsink Size: 45*43 mm 25 Power Dissipation (W) Dropout Voltage (V) 2.0 1.5 1.0 IOUT=100mA IOUT=500mA 0.5 -20 0 15 10 5 IOUT=1A 0.0 -40 20 20 40 60 80 100 0 -40 120 -20 0 20 40 60 80 100 120 o o Case Temperature ( C) Case Temperature ( C) Figure 9. Power Dissipation vs. Case Temperature Figure 8. Dropout Voltage vs. Case Temperature AS7805 Package: TO-252-3 2 Heatsink Size: 45*43 mm 25 20 AS7805 15 10 15 ∆VOUT (50mV/Div) Power Dissipation (W) VIN (5V/Div) 30 10 5 0 -40 -20 0 20 40 60 80 100 0 -50 120 o Case Temperature ( C) Time (100µs/Div) Figure 10. Power Dissipation vs. Case Temperature Figure 11. Line Transient (Conditions: IOUT=500mA, CIN=0.33µF, COUT=0.1µF) Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 9 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX ∆VOUT (100mV/Div) IOUT (1A/Div) Typical Performance Characteristics (Continued) AS7805 1 0 0.005A 100 0 Time (40µs/Div) Figure 12. Load Transient (Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF) Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 10 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Typical Application AS78XX VIN INPUT VOUT OUTPUT GND 0.33µF 0.1µF Figure 13. Fixed Output Regulator of AS78XX Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 11 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Mechanical Dimensions TO-220-3 2.580(0.102) 3.380(0.133) 0.550(0.022) 1.350(0.053) 1.160(0.046) 1.760(0.069) 14.230(0.560) 16.510(0.650) φ1.500(0.059) 27.880(1.098) 30.280(1.192) 8.520(0.335) 9.520(0.375) 1.850(0.073) 9.660(0.380) 10.660(0.420) φ3.560(0.140) 4.060(0.160) Unit: mm(inch) 3° 0.200(0.008) 7° 3.560(0.140) 4.820(0.190) 2.080(0.082) 2.880(0.113) 7° 0.381(0.015) 60° 0.813(0.032) 8.763(0.345) 60° 0.381(0.015) 2.540(0.100) 2.540(0.100) Mar. 2006 Rev. 1. 0 0.356(0.014) 0.406(0.016) BCD Semiconductor Manufacturing Limited 12 Preliminary Datasheet 3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX Mechanical Dimensions (Continued) TO-252-2 2.180(0.086) 2.380(0.094) 0.460(0.018) 0.580(0.023) 1.080(0.043) 1.320(0.052) 2.240(0.088) 2.340(0.092) 2.90° 3.10° 5° 0.600(0.024) 1.400(0.055) 1.760(0.069) 0.640(0.025) 0.780(0.031) 8° 5.360(0.211) 5.560(0.219) 0.480(0.019) 0.540(0.021) 0.020(0.001) 0.120(0.005) 5° 0.750(0.030) 0.850(0.033) 2.240(0.088) 2.340(0.092) 0.400(0.016)×45° 1° 7° 0.510(0.020) 2.600(0.102) 3.000(0.118) 9.500(0.374) 10.100(0.398) 0.650(0.026) 0.950(0.037) 5.230(0.206) 5.430(0.214) 6.380(0.251) 6.680(0.263) Unit: mm(inch) 2.90° 3.10° Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited 13 http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. MAIN SITE BCD Semiconductor Manufacturing Limited BCD Semiconductor Manufacturing Limited - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 - IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. 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