LT1083/LT1084/LT1085 - Linear Technology
LT1083/LT1084/LT1085 - Linear Technology
LT1083/LT1084/LT1085 - Linear Technology
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TYPICAL PERFORMANCE CHARACTERISTICS<br />
MINIMUM OPERATING CURRENT (mA)<br />
RIPPLE REJECTION (dB)<br />
RIPPLE REJECTION (dB)<br />
10<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
0<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
T J = 25°C<br />
T J = –55°C<br />
T J = 150°C<br />
5 10 15 20 25 30 35<br />
INPUT/OUTPUT DIFFERENTIAL (V)<br />
V RIPPLE ≤ 3V P-P<br />
(V IN – V OUT) ≥ V DROPOUT<br />
<strong>LT1083</strong>/4/5 ADJ G10<br />
V RIPPLE<br />
≤ 0.5V P-P<br />
(V IN – V OUT) ≥ 3V<br />
C ADJ = 200μF AT FREQUENCIES < 60Hz<br />
CADJ = 25μF AT FREQUENCIES > 60Hz<br />
IOUT = 7A<br />
0<br />
10 100 1k<br />
FREQUENCY (Hz)<br />
10k 100k<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
V RIPPLE ≤ 3V P-P<br />
(V IN – V OUT) ≥ V DROPOUT<br />
1083/4/5 ADJ G13<br />
V RIPPLE ≤ 0.5V P-P<br />
(V IN – V OUT) ≥ 3V<br />
C ADJ = 200μF AT FREQUENCIES < 60Hz<br />
CADJ = 25μF AT FREQUENCIES > 60Hz<br />
IOUT = 5A<br />
0<br />
10 100 1k<br />
FREQUENCY (Hz)<br />
10k 100k<br />
1083/4/5 ADJ G16<br />
REFERENCE VOLTAGE (V)<br />
RIPPLE REJECTION (dB)<br />
RIPPLE REJECTION (dB)<br />
1.27<br />
1.26<br />
1.25<br />
1.24<br />
1.23<br />
–50 –25 0 25 50 75 100 125 150<br />
TEMPERATURE (°C)<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
0<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
0<br />
f R = 20kHz<br />
VRIPPLE ≤ 0.5V P-P<br />
V OUT = 5V<br />
CADJ = 25μF<br />
COUT = 25μF<br />
<strong>LT1083</strong>/4/5 ADJ G11<br />
f R = 120Hz<br />
VRIPPLE ≤ 3V P-P<br />
1 2 3 4 5 6 7 8<br />
OUTPUT CURRENT (A)<br />
1083/4/5 ADJ G14<br />
1 2 3 4 5<br />
OUTPUT CURRENT (A)<br />
<strong>LT1083</strong>/<strong>LT1084</strong>/<strong>LT1085</strong><br />
Minimum Operating Current Temperature Stability Adjust Pin Current<br />
<strong>LT1083</strong><br />
Ripple Rejection<br />
<strong>LT1084</strong><br />
Ripple Rejection<br />
<strong>LT1083</strong><br />
Ripple Rejection vs Current<br />
<strong>LT1084</strong><br />
Ripple Rejection vs Current<br />
f R = 20kHz<br />
VRIPPLE ≤ 0.5V P-P<br />
V OUT = 5V<br />
CADJ = 25μF<br />
COUT = 25μF<br />
f R = 120Hz<br />
VRIPPLE ≤ 3V P-P<br />
1083/4/5 ADJ G17<br />
ADJUST PIN CURRENT (μA)<br />
POWER (W)<br />
POWER (W)<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
–50 –25 0 25 50 75 100 125 150<br />
TEMPERATURE (°C)<br />
<strong>LT1083</strong>/4/5 ADJ G12<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
<strong>LT1083</strong>MK<br />
30<br />
20<br />
<strong>LT1083</strong>CP<br />
10<br />
<strong>LT1083</strong>CK<br />
0<br />
50 60 70 80 90 100 110 120 130 140 150<br />
CASE TEMPERATURE (°C)<br />
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
<strong>LT1083</strong><br />
Maximum Power Dissipation*<br />
<strong>LT1084</strong><br />
Maximum Power Dissipation*<br />
<strong>LT1084</strong>CT<br />
<strong>LT1084</strong>CK<br />
<strong>LT1084</strong>MK<br />
<strong>LT1084</strong>CP<br />
<strong>LT1083</strong>/4/5 ADJ G15<br />
0<br />
50 60 70 80 90 100 110 120 130 140 150<br />
CASE TEMPERATURE (°C)<br />
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE<br />
<strong>LT1083</strong>/4/5 ADJ G18<br />
108345fg<br />
7
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