LT1086_04 Datasheet, PDF (5/16 Pages) Linear Technology – 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V

TYPICAL PERFORMANCE CHARACTERISTICS
LT1086 Series
LT1086 Short-Circuit Current
2.5
T_J = 150°C
2.0
T_J = 25°C
T_J = –55°C
1.5
1.0
0.5
GUARANTEED
OUTPUT CURRENT
0
0 5 10 15 20 25 30
INPUT/OUTPUT DIFFERENTIAL (V)
LT1086 • TPC01
LT1086 Load Regulation
0.10
∆I = 1.5A
0.05
0
–0.05
–0.10
–0.15
–0.20
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1086 • TPC02
Temperature Stability
2
1
0
–1
–2
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1086 • TPC04
LT1086 Ripple Rejection
100
90
V_RIPPLE ≤ 3V_P-P V_RIPPLE ≤ 0.5V_P-P
80
70
(V_IN – V_OUT) ≥ 3V
60
(V_IN – V_OUT) ≥ V_DROPOUT
50
40
30
20 C_ADJ = 200µF AT FREQUENCIES < 60Hz
10
C_ADJ = 25µF AT FREQUENCIES > 60Hz
I_OUT = 1.5A
0
10
100
1k
10k
FREQUENCY (Hz)
100k
LT1086 • TPC07
Adjust Pin Current
100
90
80
70
60
50
40
30
20
10
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1086 • TPC05
LT1086 Ripple Rejection
vs Current
100
90
f_R = 120Hz
V_RIPPLE ≤ 3V_P-P
80
70
f_R = 20kHz
60
V_RIPPLE ≤ 0.5V_P-P
50
40
30
20 V_OUT = 5V
10
C_ADJ = 25µF
C_OUT = 25µF
0
0 0.25 0.5 0.75 1.0 1.25 1.5
OUTPUT CURRENT (A)
LT1086 • TPC08
Minimum Operating Current
(Adjustable Device)
10
9
8
7
6
5
T_J = 150°C
T_J = 25°C
4
T_J = –55°C
3
2
1
0
0 5 10 15 20 25 30 35
INPUT/OUTPUT DIFFERENTIAL (V)
LT1086 • TPC03
LT1086 Maximum Power
Dissipation*
20
LT1086MK
15
LT1086CT
10
LT1086CK
5
0
50 60 70 80 90 100 110 120 130 140 150
CASE TEMPERATURE (°C)
*AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1086 • TPC06
LT1086-5 Ripple Rejection
80
V_RIPPLE ≤ 3V_P-P V_RIPPLE ≤ 0.5V_P-P
70
(V_IN – V_OUT) ≥ 3V
60
50
(V_IN – V_OUT) ≥ V_DROPOUT
40
30
20
10
I_OUT = 1.5A
0
10
100
1k
10k
FREQUENCY (Hz)
100k
LT1086 • TPC09
sn1086 1086ffs
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