ST 7805 3-terminal 1 A positive voltage regulator Features • Output Current up to 1 A • Thermal Overload Protection • Short Circuit Protection • Output Transistor Safe Operating Area Protection TO-220 Plastic Package Absolute Maximum Ratings (Ta = 25 OC) Parameter Symbol Input Voltage Value VI Thermal Resistance Junction-Cases RθJC Thermal Resistance Junction-Air RθJA Operating Temperature Range TOpr Storage Temperature Range Electrical Characteristics H C 35 V 5 O 65 O C/W C/W 0 to + 125 O - 65 to + 150 O E T Tstg Units C C (0 OC < TJ < 125 OC, IO = 500 mA, VI = 10 V, CI = 0.33 µF, CO = 0.1 µF, unless otherwise specified) Parameter Min. Typ. Max. 4.8 5 5.2 4.75 5 5.25 VI = 7 V to 25 V - - 100 VI = 8 V to 12 V - - 50 IO = 5 mA to 1.5 A - - 100 IO = 250 mA to 750 mA - - 50 TJ = + 25 OC - - 8 IO = 5 mA to 1 A - - 0.5 VI = 7 V to 25 V - - 1.3 - -0.8 - mV/OC - 42 - µV 62 - - dB IO = 1 A, TJ = + 25 C - 2 - V Symbol Conditions M E TJ = + 25 C O VO Output Voltage 5 mA IO 1 A, PO 15 W VI = 7 V to 20 V Line Regulation 1) S Load Regulation 1) Quiescent Current Quiescent Current Change Output Voltage Drift Regline TJ = + 25 OC Regload TJ = + 25 OC IQ ∆IQ ∆VO/∆T IO = 5 mA Output Noise Voltage VN f = 10 Hz to 100 KHz, TA = + 25 OC Ripple Rejection RR f = 120 Hz, VI = 8 V to 18 V Dropout Voltage VDrop O Unit V mV mV mA mA Output Resistance RO f = 1 KHz - 15 - mΩ Short Circuit Current ISC VI = 35 V, TA = + 25 OC - 230 - mA Peak Current IPK TJ = + 25 OC - 2.2 - A 1) Load and line regulation are specified at constant junction temperature, Changes in Vo due to heating effects must be taken into account separately, Pulse testing with low duty is used. SEMTECH ELECTRONICS LTD. Subsidiary of Sino-Tech International (BVI) Limited ® Date: 17/09/2012 Rev: 01 ST 7805 Typical Performance Characteristics M E S E T H C SEMTECH ELECTRONICS LTD. Subsidiary of Sino-Tech International (BVI) Limited ® Date: 17/09/2012 Rev: 01 ST 7805 TO-220 PACKAGE OUTLINE M E S E T H C SEMTECH ELECTRONICS LTD. Subsidiary of Sino-Tech International (BVI) Limited ® Date: 17/09/2012 Rev: 01