3012B View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'3012B' PDF : 16 Pages View PDF
TYPICAL PERFOR A CE CHARACTERISTICS
LT3012B
ADJ Pin Bias Current
50
45
40
35
30
25
20
15
10
5
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
3012B G13
Current Limit
1000
VOUT = 0V
900
800
700
TJ = 25°C
600
TJ = 125°C
500
400
300
200
100
0
0 10 20 30 40 50 60
INPUT VOLTAGE (V)
70 80
3012B G14
Current Limit
700
600
500
400
300
200
100 VIN = 7V
0 VOUT = 0V
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
3012B G15
Reverse Output Current
200
TJ = 25°C
180 VIN = 0V
160 VOUT = VADJ
140
120
100 CURRENT FLOWS
80 INTO OUTPUT PIN
60
ADJ
PIN CLAMP
(SEE APPLICATIONS
INFORMATION)
40
20
0
0 1 2 3 4 5 6 7 8 9 10
OUTPUT VOLTAGE (V)
3012B G16
Reverse Output Current
35
VIN = 0V
30 VOUT = VADJ = 1.24V
25
20
15
10
5
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
3012B G17
Input Ripple Rejection
92
88
84
80
76
72
68
VIN = 4.5V + 0.5VP-P RIPPLE AT f = 120Hz
64 IL = 250mA
VOUT = 1.24V
60
–50 –25 0 25 50 75 100 125
TEMPERATURE (°C)
3012B G18
Input Ripple Rejection
100
VIN = 4.5V + 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)
3012B G19
Minimum Input Voltage
4.0
ILOAD = 250mA
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
3012B G20
3012bf
5
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