SCD7805ACTG ON Semiconductor

Customer Specific Device from ON Semiconductor 1.0 A Positive Voltage SCD7800, Regulators SCD7800A These voltage regulators are monolithic integrated circuits designed as fixedvoltage regulators for a wide variety of applications including local, oncard regulation. These regulators employ internal current limiting, thermal shutdown, and safearea compensation. With adequate TO220 3 heatsinking they can deliver output currents in excess of T SUFFIX 1.0 A. Although designed primarily as a fixed voltage CASE 221AB 1 2 regulator, these devices can be used with external Heatsink surface 3 components to obtain adjustable voltages and currents. connected to Pin 2. Pin 1. Input 2. Ground Features 3. Output Output Current in Excess of 1.0 A No External Components Required STANDARD APPLICATION Internal Thermal Overload Protection Input SCD78XX Output Internal Short Circuit Current Limiting Output Transistor SafeArea Compensation C * in C ** O 0.33 F Output Voltage Offered in 2% and 4% Tolerance PbFree Packages are Available A common ground is required between the input and the output voltages. The input voltage MAXIMUM RATINGS (T = 25C, unless otherwise noted) A must remain typically 2.0 V above the output voltage even during the low point on the input Rating Symbol Value Unit ripple voltage. Input Voltage (5.0 18 V) V 35 Vdc I XX, These two digits of the type number (24 V) 40 indicate nominal voltage. Power Dissipation P Internally W D * C is required if regulator is located an in Limited appreciable distance from power supply Thermal Resistance, R 65 C/W filter. JA Junction toAmbient ** C is not needed for stability however, O it does improve transient response. Values Thermal Resistance, R 5.0 C/W JC of less than 0.1 F could cause instability. Junction toCase Storage Junction Temperature T 65 to +150 C stg Range ORDERING INFORMATION See detailed ordering and shipping information in the package Operating Junction T +150 C J dimensions section on page 18 of this data sheet. Temperature Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation DEVICE MARKING INFORMATION above the Recommended Operating Conditions is not implied. See general marking information in the device marking Extended exposure to stresses above the Recommended Operating section on page 19 of this data sheet. Conditions may affect device reliability. *This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL STD 883, Method 3015. Machine Model Method 200 V. Semiconductor Components Industries, LLC, 2011 1 Publication Order Number: September, 2011 Rev. 4 SCD7800/DSCD7800, SCD7800A V in SCD7800 R24 D2 50 Zener LAT 3 A LAT R19 Q18 Q17 27.5 k Q19 QNPN Q20 QNPN C3 1.0 P R14 1.0 k Q10 QNPN R15 R18 R21 680 R23 100 k R22 600 0.2 100 V out 5.01 Q7 QNPN Q5 QNPN 2 R30 R17 18 k Q12 9.0 k QNPN Sense Q9 R12 R29 QNPN 2 R11 Q6 3.0 k 9.0 k D1 Q15 15 k QNPN Zener QNPN R25 R28 R1 6.0 k 9.0 k 10.66 k R10 R16 R20 3340-(3316ACT) 600 17500 R26 R27 Q8 3.0 k 9.0 k QNPN R2 1.56 k R9 R5 R13 3.0 k 4.5 k 11660 SUB Q14 Q11 2 Q1 C1 QNPN C2 30 P N+ 3.0 P QNPN 6 Q4 QNPN Q13 Q3 QNPN QNPN Q2 Q16 QNPN 4 R6 1.0 k Diode R7 R3 R8 14 k 1.8 k 5.0 k This device contains 22 active transistors. Figure 1. Representative Schematic Diagram