LT3012EFE Просмотр технического описания (PDF) - Linear Technology
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LT3012EFE Datasheet PDF : 16 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT3012
Input Ripple Rejection
92
88
84
80
76
72
68
VIN = 4.75V + 0.5VP-P RIPPLE AT f = 120Hz
64 IL = 250mA
VOUT = 1.24V
60
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3012 G19
Input Ripple Rejection
100
VIN = 4.75V + 50mVRMS RIPPLE
90 ILOAD = 250mA
80
70
60
50
COUT = 10μF
40
30
20
10
COUT = 3.3μF
0
10 100
1k
10k 100k 1M
FREQUENCY (Hz)
3012 G20
Minimum Input Voltage
5.0
ILOAD = 250mA
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3012 G21
Load Regulation
0
ΔIL = 1mA TO 250mA
–2
–4
–6
–8
–10
–12
–14
–16
–18
–20
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3012 G22
Output Noise Spectral Density
10
COUT = 3.3μF
ILOAD = 250mA
1
0.1
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
3012 G23
10Hz to 100kHz Output Noise
VOUT
100μV/DIV
COUT = 10μF
IL = 250mA
VOUT = 1.24V
1ms/DIV
3012 G24
Transient Response
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
300
200
VIN = 6V
VOUT = 5V
CIN = 3.3μF CERAMIC
COUT = 3.3μF CERAMIC
ΔILOAD = 100mA TO 200mA
100
0
0
100 200 300 400 500
TIME (μs)
3012 G25
3012fd
7
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