ST7815 Datasheet, PDF (1/3 Pages) SEMTECH ELECTRONICS LTD. – 3-terminal 1 A positive voltage regulator

ST 7815
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
Absolute Maximum Ratings (T_a = 25 ^OC)
Parameter
Input Voltage
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range
Storage Temperature Range
TO-220 Plastic Package
Symbol
V_I
R_θJC
R_θJA
T_OPR
T_S
Value
35
5
65
0 to + 125
- 65 to + 150
Unit
V
O_C/W
O_C/W
O_C
O_C
Electrical Characteristics
(0 ^OC < T_J < 125 ^OC, I_O = 500 mA, V_I = 23 V, C_I = 0.33 µF, C_O = 0.1 µF, unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
Output Voltage
Line Regulation ¹⁾
Load Regulation ¹⁾
Quiescent Current
T_J = 25 ^OC
V_O 5 mA ≤ I_O ≤ 1 A, P_O ≤ 15 W
V_I = 17.5 V to 30 V
Regline T_J = 25 ^OC ^{VI = 17.5 V to 30 V}
V_I = 20 V to 26 V
Regload T_J = 25 ^OC ^{IO = 5 mA to 1.5 A}
I_O = 250 mA to 750 mA
I_Q
T_J = 25 ^OC
14.4 15 15.6
V
14.25 15 15.75
-
- 300
mV
-
- 150
-
- 300
mV
-
- 150
-
-
8
mA
Quiescent Current Change
Output Voltage Drift
ΔI_Q
ΔV_O/ΔT
I_O = 5 mA to 1 A
V_I = 17.5 V to 30 V
I_O = 5 mA
-
- 0.5
mA
-
-
1
-
-1
- mV/^OC
Output Noise Voltage
V_N f = 10 Hz to 100 KHz, T_a = 25 ^OC
- 90 -
µV
Ripple Rejection
RR f = 120 Hz, V_I = 18.5 V to 28.5 V
54 -
-
dB
Dropout Voltage
V_Drop I_O = 1 A, T_J = 25 ^OC
-
2
-
V
Output Resistance
R_O f = 1 KHz
-
19
-
mΩ
Short Circuit Current
I_SC V_I = 35 V, T_a = 25 ^OC
- 250 -
mA
Peak Current
I_PK
T_J = 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 Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 11/04/2007