RH1084_15 Datasheet, PDF (2/4 Pages) Linear Technology – 5A Low Dropout Positive Adjustable Regulator

RH1084
TABLE 1: ELECTRICAL CHARACTERISTICS (Preirradiation)
PARAMETER
CONDITIONS
T_A = 25°C
SUB- –55°C ≤ T_A ≤ 125°C SUB-
NOTES MIN TYP MAX GROUP MIN TYP MAX GROUP UNITS
Reference Voltage
I_OUT = 10mA, (V_IN – V_OUT) = 3V
1.238 1.250 1.262 1
10mA ≤ I_OUT ≤ I_{FULL LOAD},
1.5V ≤ (V_IN – V_OUT) ≤ 25V
5 1.225
1.270
1.225 1.250 1.270 2,3
Line Regulation
I_LOAD = 10mA, 1.5V ≤ (V_IN – V_OUT) ≤ 15V 1, 2
15V ≤ (V_IN – V_OUT) ≤ 25V
0.015 0.2 1
0.5 1
0.035 0.2 2,3
0.050 0.5 2,3
Load Regulation
(V_IN – V_OUT) = 3V,
10mA ≤ I_OUT ≤ I_{FULL LOAD}
1,2,5
0.3 0.6 1
0.5 0.8 2,3
Dropout Voltage
ΔV_REF = 1%, I_OUT = I_{FULL LOAD}
3,5
1.5 1
1.3 1.5 2,3
Current Limit
(V_IN – V_OUT) = 5V
(V_IN – V_OUT) = 25V
5.5
1 5.5 6.5
2,3
0.3
1 0.3 0.6
2,3
Minimum Load Current (V_IN – V_OUT) = 25V
10
1
5.0 10 2,3
Thermal Regulation T_A = 25°C, 30ms Pulse
0.003 0.015 4
Ripple Rejection
f = 120Hz, C_ADJ = 25μF,
C_OUT = 25μF Tantalum,
I_OUT = I_{FULL LOAD}, (V_IN – V_OUT) = 3V
5 60 75
4
60 75
5,6
Adjust Pin Current
T_J = 25°C
55 120 1
120 2,3
Adjust Pin Current
10mA ≤ I_OUT ≤ I_{FULL LOAD},
5
Change
1.5V ≤ (V_IN – V_OUT) ≤ 25V
5
1
0.2 5 2,3
Temperature Stability
0.5
V
V
%
%
%
V
A
A
mA
%/ W
dB
μA
μA
%
Long Term Stability
RMS Output Noise
(% of V_OUT)
Thermal Resistance
T_A = 125°C, 1000 Hrs
T_A = 25°C, 10Hz ≤ f ≤ 10kHz
Control Circuitry
Power Transistor
4
0.003
4
0.75
4
2.3
0.3
%
%
°C/W
°C/W
Total Dose Bias Circuit
12.5V
RH1084
ADJ
V_OUT
150Ω
–12.5V RH1084 BC
rh1084fd
2