LT3012 LINER [Linear Technology], LT3012 Datasheet - Page 7

• Manufacturer Part Number: LT3012
• Description: 250mA, 4V to 80V Low Dropout Micropower Linear Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
92
88
84
80
76
72
68
64
60
–50
Input Ripple Rejection
V
I
V
L
IN
OUT
= 250mA
–25
= 4.75V + 0.5V
= 1.24V
100μV/DIV
0
TEMPERATURE (°C)
V
25
OUT
–10
–12
–14
–16
–18
–20
–2
–4
–6
–8
P-P
0
–50
Load Regulation
10Hz to 100kHz Output Noise
C
I
V
50
L
ΔI
RIPPLE AT f = 120Hz
OUT
OUT
= 250mA
L
–25
= 1mA TO 250mA
= 10μF
= 1.24V
75
100
0
TEMPERATURE (°C)
25
125
1ms/DIV
3012 G19
50
150
75
100
100
90
80
70
60
50
40
30
20
10
0
10
125
Input Ripple Rejection
3012 G24
V
I
3012 G22
LOAD
IN
150
= 4.75V + 50mV
= 250mA
100
FREQUENCY (Hz)
1k
RMS
–0.05
–0.10
–0.15
RIPPLE
10k
0.01
0.15
0.10
0.05
300
200
100
0.1
10
C
1
0
0
OUT
10
C
0
Output Noise Spectral Density
Transient Response
OUT
C
I
LOAD
= 3.3μF
OUT
100k
= 10μF
= 3.3μF
= 250mA
100
3012 G20
100
1M
FREQUENCY (Hz)
V
V
C
C
ΔI
200
IN
OUT
IN
OUT
LOAD
TIME (μs)
= 6V
= 3.3μF CERAMIC
= 5V
= 3.3μF CERAMIC
1k
= 100mA TO 200mA
1.0
300
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
0.5
0
–50
Minimum Input Voltage
I
LOAD
10k
–25
400
= 250mA
3012 G23
3012 G25
0
TEMPERATURE (°C)
100k
500
25
50
LT3012
75
100
125
3012 G21
3012fd
7
150