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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 Input Voltage Thermal Resistance Junction-Cases Thermal Resistance Junction-Air Operating Temperature Range Storage Temperature Range Electrical Characteristics
(0 OC < TJ < 125 OC, IO = 500 mA, VI = 10 V, CI = 0.33 F, CO = 0.1 F, unless otherwise specified)
Symbol VI RJC RJA TOPR TS
Value 35 5 65 0 to + 125 - 65 to + 150
Units V
O
C/W C/W
O
O
C C
O
Parameter Output Voltage
Symbol TJ = + 25 C
O
Conditions 5 mA IO 1 A, PO 15 W VI = 7 V to 20 V VI = 7 V to 25 V VI = 8 V to 12 V IO = 5 mA to 1.5 A IO = 250 mA to 750 mA
Min. 4.8 4.75 62 -
Typ. 5 5 -0.8 42 2 15 230 2.2
Max. 5.2 5.25 100 50 100 50 8 0.5 1.3 -
Unit V
VO
Line Regulation
1)
Regline TJ = + 25 OC Regload TJ = + 25 OC IQ IQ VO/T VN RR VDrop RO ISC IPK TJ = + 25 OC
mV mV mA mA mV/OC V dB V m mA A
Load Regulation
1)
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
1)
IO = 5 mA to 1 A VI = 7 V to 25 V IO = 5 mA f = 10 Hz to 100 KHz, TA = + 25 OC f = 120 Hz, VI = 8 V to 18 V IO = 1 A, TJ = + 25 OC f = 1 KHz VI = 35 V, TA = + 25 C
O
TJ = + 25 C
O
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.
(R)
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 21/06/2006
ST 7805
Typical Performance Characteristics
SEMTECH ELECTRONICS LTD.
(R)
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 21/06/2006
ST 7805
TO-220 PACKAGE OUTLINE
SEMTECH ELECTRONICS LTD.
(R)
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 21/06/2006

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