78xx. Positive-Voltage Regulator. Pin Description V IN V OUT C IN C OUT OUT GND IN OUT GND IN

Transcription

1 Positive-oltage Regulator Description The 78xx series are fixed-voltage monolithic integrated circuit voltage regulators designed for wide range of applications. Each of these regulators can deliver up to 1.5A of output current. The internal limiting and thermal shutdown features of these regulators make them essentially immune to overload. Features Three Terminal Regulators. Output Current up to:1.5a. No External Components. Internal Thermal Overload Protection. Internal Short-Circuit Limiting. Output oltage Offered in 4% Tolerance. Typical Application Applications Linear Regulator IN 78xx OUT Microprocessor Power Supply Graphic Card C IN C OUT Mother Board Security Product Pin Description OUT GND IN OUT GND IN 1

2 Ordering Information Part Number 7805GI 7806GI 7808GI 7809GI 7810GI 7812GI 7815GI 7818GI 7820GI 7824GI 7805FI 7806FI 7808FI 7809FI 7810FI 7812FI 7815FI 7818FI 7820FI 7824FI Temperature Pin Assignment Package Range Input GND Output Packing -40 o C ~ +125 o C TO Tape & Reel -40 o C ~ +125 o C TO Tube Absolute Maximum Ratings alue Symbol Parameter Unit 7805~ ~7824 IN Input voltage I OUT Output current 1.5 A TA Operating ambient temperature -40 ~ +125 T J Operating junction temperature 150 T STG Storage temperature -65 ~ +150 T LEAD Lead temperature 1.6mm from case for 10 seconds 260 o C o C o C o C 2

3 Thermal Characteristics ET- 78xx Symbol Parameter Package Typical alue Unit Thermal Resistance From Junction to Ambient in Free Air. TO θ JA (Measured with the component mounted on a high effective thermal conductivity test board in free air.) TO o C/W 7805 Electrical Characteristics (T A =25 o C, IN =10, I OUT =500, unless otherwise noted.) IN =7 to 20 IN =7 to IN =8 to I O =250 to PSRR Ripple rejection IN =8 to 18, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =7 to Electrical Characteristics (T A =25 o C, IN =11, I OUT =500, unless otherwise noted.) IN =8 to 21 IN =8 to IN =9 to I O =250 to PSRR Ripple rejection IN =9 to 19, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =8 to

4 7808 Electrical Characteristics (T A =25 o C, IN =14, I OUT =500, unless otherwise noted.) IN =10.5 to 23 IN =10.5 to IN =11 to I O =250 to PSRR Ripple rejection IN =11.5 to 21.5, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =10.5 to Electrical Characteristics (T A =25 o C, IN =15, I OUT =500, unless otherwise noted.) IN =11.5 to 24 IN =11 to IN =11.5 to I O =250 to PSRR Ripple rejection IN =12 to 23.5, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =11.5 to

5 7812 Electrical Characteristics (T A =25 o C, IN =19, I OUT =500, unless otherwise noted.) IN =14.5 to 27 IN =14.5 to IN =16 to I O =250 to PSRR Ripple rejection IN =15 to 25, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =14.5 to Electrical Characteristics (T A =25 o C, IN =23, I OUT =500, unless otherwise noted.) IN =17.5 to 30 IN =17.5 to IN =20 to I O =250 to PSRR Ripple rejection IN =18.5 to 28.5, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =17.5 to

6 7818 Electrical Characteristics (T A =25 o C, IN =27, I OUT =500, unless otherwise noted.) IN =21 to 33 IN =21.5 to IN =24 to I O =250 to PSRR Ripple rejection IN =22.5 to 32, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =21 to Electrical Characteristics (T A =25 o C, IN =29, I OUT =500, unless otherwise noted.) IN =23 to 35 IN =23 to IN =26 to I O =250 to PSRR Ripple rejection IN =24.5 to 35, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =23 to

7 7824 Electrical Characteristics (T A =25 o C, IN =31, I OUT =500, unless otherwise noted.) IN =27 to 38 IN =27 to IN =30 to I O =250 to PSRR Ripple rejection IN =28.5 to 37, f=120hz db n Output noise voltage F=10Hz~100Hz u DROPOUT Dropout voltage IN =27 to Note: * Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33uF capacitor across the input and a 0.1uF capacitor across the output. ** The specification applies only for DC power dissipation permitted by absolute maximum rating. 7

8 Typical Characteristics ET- 78xx

9 Package Information TO-263 ET- 78xx 9

10 Package Information TO-220 ET- 78xx 10