LT1761ES5-5(RevA) Просмотр технического описания (PDF) - Linear Technology
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LT1761ES5-5 Datasheet PDF : 16 Pages
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LT1761 Series
TYPICAL PERFOR A CE CHARACTERISTICS
LT1761-5
Input Ripple Rejection
80
70
CBYP = 0.01µF
CBYP = 1000pF
60
50
40
CBYP = 100pF
30
20 IL = 100mA
VIN = VOUT(NOMINAL) +
10 1V + 50mVRMS RIPPLE
COUT = 10µF
0
10
100
1k
10k
FREQUENCY (Hz)
100k 1M
1761 G36
Input Ripple Rejection
80
70
60
50
40
30
20 VIN = VOUT (NOMINAL) +
1V + 0.5VP-P RIPPLE
10 AT f = 120Hz
IL = 50mA
0
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
1761 G37
LT1761-BYP, LT1761-SD
Minimum Input Voltage
2.5
2.0
IL = 100mA
1.5
IL = 50mA
1.0
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1761 G38
Load Regulation
∆IL = 1mA to 50mA
0
–5
LT1761-BYP, -SD
LT1761-1.5
–10
LT1761-1.8
LT1761-2
LT1761-2.5
–15
LT1761-2.8
LT1761-3
–20
LT1761-3.3
–25
– 30
LT1761-5
–35
–40
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1761 G39
Load Regulation
∆IL = 1mA to 100mA
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–50 –25
0 25 50 75
TEMPERATURE (°C)
LT1761-BYP, -SD
LT1761-1.5
LT1761-1.8
LT1761-2
LT1761-2.5
LT1761-2.8
LT1761-3
LT1761-3.3
LT1761-5
100 125
1761 G40
Output Noise Spectral Density
10
LT1761-3.3
LT1761-2.8,-3
LT1761-5
LT1761-2.5
1
LT1761-BYP, -SD
LT1761-1.5
0.1
LT1761-1.8
LT1761-2
COUT = 10µF
CBYP = 0
IL = 100mA
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
1761 G41
Output Noise Spectral Density
10
LT1761-5
1
LT1761-BYP
0.1 CBYP = 0.01µF
CBYP = 1000pF
CBYP = 100pF
COUT = 10µF
IL = 100mA
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
1761 G42
RMS Output Noise vs
Bypass Capacitor
140
LT1761-5
COUT = 10µF
120
IL = 100mA
LT1761-3.3 f = 10Hz TO 100kHz
LT1761-3
100
LT1761-2.8
80
LT1761-2.5
60
40
LT1761-1.8, -2
20
LT1761-1.5
LT1761-BYP
0
10
100
1k
CBYP (pF)
10k
1761 G43
10
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