LT1963AES8 View Datasheet(PDF) - Linear Dimensions Semiconductor
Part Name
Description
Manufacturer
LT1963AES8 Datasheet PDF : 28 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1963A Series
Ripple Rejection
80
70
60
50
40
COUT = 100µF TANTALUM
30
+10 × 1µF CERAMIC
20
COUT = 10µF TANTALUM
10 IL = 0.75A
VIN = VOUT(NOMINAL) +1V + 50mVRMS RIPPLE
0
10
100
1k
10k 100k 1M
FREQUENCY (Hz)
1963A G31
Ripple Rejection
76
74
72
70
68
66
64 IL = 0.75A
VIN = VOUT(NOMINAL) +1V + 0.5VP-P
62 RIPPLE AT f = 120Hz
–50 –25 0 25 50 75 100 125
TEMPERATURE (°C)
1963A G32
LT1963A Minimum Input Voltage
3.0
2.5
IL = 1.5A
2.0
IL = 500mA
1.5
IL = 100mA
1.0
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1963A G33
Load Regulation
10
5
LT1963A-1.5
0
LT1963A
LT1963A-1.8
–5
LT1963A-2.5
LT1963A-3.3
–10
VIN = VOUT(NOMINAL) +1V
–15 (LT1963A-1.8/-2.5/-3.3)
VIN = 2.7V (LT1963A/LT1963A-1.5)
ΔIL = 1mA TO 1.5A
–20
–50 –25 0 25 50 75 100 125
TEMPERATURE (°C)
1963A G34
RMS Output Noise vs Load
Current (10Hz to 100kHz)
50
COUT = 10µF
45
40
LT1963A-3.3
35
LT1963A-2.5
30
25
LT1963A-1.8
20
15
LT1963A-1.5
LT1963A
10
5
0
0.0001 0.001 0.01 0.1
1
10
LOAD CURRENT (A)
1963A G36
Output Noise Spectral Density
1.0
COUT = 10µF
IL =1.5A
LT1963A-3.3
0.1
LT1963A-2.5
LT1963A-1.8
LT1963A-1.5
LT1963A
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
1963A G35
LT1963A-3.3 10Hz to 100kHz Output Noise
VOUT
100µV/DIV
COUT = 10µF
ILOAD = 1.5A
1ms/DIV
1963A G37
1963afe
11
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