1506I データシートの表示（PDF） - Linear Technology
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1506I Datasheet PDF : 24 Pages
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LT1506
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Input Voltage
with 3.3V Output
4.7
Switch Peak Current Limit
6.5
Feedback Pin Voltage
2.430
4.5
6.0
TYPICAL
4.3
5.5
2.425
4.1
5.0
MINIMUM
2.420
3.9
4.5
3.7
4.0
2.415
3.5
3.5
3.3
1
10
100
LOAD CURRENT (mA)
1000
1506 G12
3.0
0
20
40
60
80 100
DUTY CYCLE (%)
1506 G02
2.410
– 50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1506 G03
Shutdown Pin Bias Current
– 500
– 400
AT 0.37V SHUTDOWN THRESHOLD.
AFTER SHUTDOWN, CURRENT
DROPS TO A FEW µA
– 300
– 200
–8
AT 2.38V LOCKOUT THRESHOLD
–4
0
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
1506 G04
Lockout and Shutdown
Thresholds
2.40
LOCKOUT
2.36
2.32
0.8
START-UP
0.4
SHUTDOWN
0
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
1506 G05
Shutdown Supply Current
25
VSHDN = 0V
20
15
10
5
0
0
5
10
15
INPUT VOLTAGE (V)
1506 G06
Shutdown Supply Current
70
VIN = 10V
60
50
40
30
20
10
0
0
0.1
0.2
0.3
0.4
SHUTDOWN VOLTAGE (V)
1506 G07
Error Amplifier Transconductance
2500
2000
1500
1000
500
0
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
1506 G08
Error Amplifier Transconductance
3000
200
PHASE
2500
150
2000
GAIN
( ) 1500 VFB 2 × 10–3
ROUT
200k
100
VC
COUT
12pF
50
1000 ERROR AMPLIFIER EQUIVALENT CIRCUIT
0
RLOAD = 50Ω
500
100
1k
10k
100k
FREQUENCY (Hz)
–50
1M 10M
1506 G09
4
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