LT3011 Просмотр технического описания (PDF) - Linear Technology
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LT3011 Datasheet PDF : 16 Pages
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LT3011
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted.
Reverse Output Current
160
140
ADJ PIN CLAMP
120 (SEE APPLICATIONS
INFORMATION)
100
80
60
40
TJ = 25°C
VIN = 0V
CURRENT FLOWS
20
INTO OUTPUT PIN
VOUT = VADJ
0
0 1 2 3 4 5 6 7 8 9 10
OUTPUT VOLTAGE (V)
3011 G19
Reverse Output Current
80
VIN = 0V
70 VOUT = VADJ = 1.24V
60
50
40
30
20
10
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3011 G20
Input Ripple Rejection
90
VIN = 7V + 0.5VP-P RIPPLE AT f = 120Hz
88 IL = 50mA
86 VOUT = 1.24V
84
82
80
78
76
74
72
70
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3011 G21
Input Ripple Rejection
100
VIN = 7V + 50mVRMS RIPPLE
90 IL = 50mA, VOUT = 1.24V
80
70
COUT = 10μF
CERAMIC
60
50
40
30
COUT = 1μF
CERAMIC
20
10
0
10
100
1k
10k 100k 1M
FREQUENCY (Hz)
3011 G22
Minimum Input Voltage
4.0
IL = 50mA
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)
3011 G23
Load Regulation
0
ΔIL = 1mA TO 50mA
VOUT = 1.24V
–2
–4
–6
–8
–10
–12
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3011 G24
Output Noise Spectral Density
10
VOUT = 1.24V
COUT = 1μF
IL = 50mA
1
0.1
Output Noise (10Hz to 100kHz)
VOUT = 1.24V
COUT = 1μF
IL = 50mA
WORST-CASE NOISE
VOUT
100μV/DIV
0.01
0.001
10
100
1k
10k
FREQUENCY (Hz)
100k
3011 G25
1ms/DIV
3011 G26
Transient Response
0.3
0.2
0.1
0
–0.1
–0.2
50
25
0
0
VIN = 6V
VOUT SET FOR 5V
CIN = 1μF CERAMIC
COUT = 1μF CERAMIC
ΔILOAD = 1mA TO 50mA
100 200 300 400 500 600 700 800 900 1000
TIME (μs)
3011 G27
3011f
7
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