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LT1963EFE-1.8#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
7
LT1963 Series
1963fc
TYPICAL PERFOR A CE CHARACTERISTICS
UW
OUTPUT CURRENT (A)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963 G21
0 0.2 0.4 0.6
0.8
1.0
1.2 1.4 1.6
V
IN
=
V
OUT (NOMINAL)
+1V
GND Pin Current vs I
LOAD
TEMPERATURE (°C)
–50
SHDN PIN THRESHOLD (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
75
1963 G23
–25
25
100
125
I
L
= 1mA
I
L
= 1.5A
TEMPERATURE (°C)
–50
SHDN PIN THRESHOLD (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
75
1963 G22
–25
25
100
125
I
L
= 1mA
SHDN Pin Threshold (On-to-Off)
SHDN Pin Threshold (Off-to-On)
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
10
8
6
4
2
0
4
1963 G16
1
2
3
1098765
R
L
= 121, I
L
= 10mA*
R
L
= 12.1, I
L
= 100mA*
R
L
= 4.33, I
L
= 300mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.21V
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963 G17
0123
4
5
678910
R
L
= 1.8, I
L
= 1A*
R
L
= 1.2, I
L
= 1.5A*
R
L
= 3.6, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.8V
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963 G18
0123
4
5
678910
R
L
= 2.5, I
L
= 1A*
R
L
= 1.67, I
L
= 1.5A*
R
L
= 5, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 2.5V
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963 G19
0123
4
5
678910
R
L
= 3.3, I
L
= 1A*
R
L
= 2.2, I
L
= 1.5A*
R
L
= 6.6, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 3.3V
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963 G20
0123
4
5
678910
R
L
= 1.21, I
L
= 1A*
R
L
= 0.81, I
L
= 1.5A*
R
L
= 2.42, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.21V
LT1963 GND Pin Current LT1963-1.8 GND Pin Current
LT1963-2.5 GND Pin Current LT1963-3.3 GND Pin Current LT1963 GND Pin Current
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
8
1963 G16i
2
4
6
19
3
5
7
10
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.5V
R
L
= 1, I
L
= 1.5A*
R
L
= 1.5, I
L
= 1A*
R
L
= 3, I
L
= 500mA*
LT1963-1.5 GND Pin Current
8
LT1963 Series
1963fc
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
REVERSE OUTPUT CURRENT (mA)
0
50
75
1963 G30
–25
25
100
125
LT1963-1.5/-1.8/-2.5/-3.3
LT1963
V
IN
= 0V
V
OUT
= 1.21V (LT1963)
V
OUT
= 1.5V (LT1963-1.5)
V
OUT
= 1.8V (LT1963-1.8)
V
OUT
= 2.5V (LT1963-2.5)
V
OUT
= 3.3V (LT1963-3.3)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
80
70
60
50
40
30
20
10
0
10 1k 10k 1M
1963 G31
100 100k
C
OUT
= 10µF TANTALUM
C
OUT
= 100µF TANTALUM
+10 × 1µF CERAMIC
I
L
= 0.75A
V
IN
= V
OUT(NOMINAL)
+1V + 50mV
RMS
RIPPLE
TEMPERATURE (°C)
–50
76
74
72
70
68
66
64
62
25 75
1963 G32
–25 0
50 100 125
RIPPLE REJECTION (dB)
I
L
= 0.75A
V
IN
= V
OUT(NOMINAL)
+1V + 0.5V
P-P
RIPPLE AT f = 120Hz
Reverse Output Current Ripple Rejection
Ripple Rejection
SHDN Pin Input Current
TEMPERATURE (°C)
–50
7
6
5
4
3
2
1
0
25 75
1963 G25
–25 0
50 100 125
SHDN PIN INPUT CURRENT (µA)
V
SHDN
= 20V
TEMPERATURE (°C)
–50
ADJ PIN BIAS CURRENT (µA)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
50
75
1963 G26
–25
25
100
125
INPUT/OUTPUT DIFFERENTIAL (V)
02 6 10 14 18
CURRENT LIMIT (A)
3.0
2.5
2.0
1.5
1.0
0.5
0
4 8 12 16
1963 G27
20
T
J
= 125°C
T
J
= 25°C
T
J
= –50°C
∆V
OUT
= 100mV
ADJ Pin Bias Current
Current Limit
Current Limit
OUTPUT VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
REVERSE OUTPUT CURRENT (mA)
1963 G29
0123
4
5
678910
LT1963
LT1963-1.8
LT1963-1.5
LT1963-3.3
LT1963-2.5
CURRENT FLOWS INTO OUTPUT PIN
V
OUT
= V
ADJ
(LT1963)
V
OUT
= V
FB
(LT1963-1.5/-1.8/-2.5/-3.3)
T
J
= 25°C
V
IN
= 0V
TEMPERATURE (°C)
–50
CURRENT LIMIT (A)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
50
75
1963 G28
–25
25
100
125
V
IN
= 7V
V
OUT
= 0V
Reverse Output Current
SHDN PIN VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
SHDN PIN INPUT CURRENT (µA)
1963 G24
0246
8
10
12 14 16 18 20
SHDN Pin Input Current
9
LT1963 Series
1963fc
TEMPERATURE (°C)
–50
MINIMUM INPUT VOLTAGE (V)
3.0
2.5
2.0
1.5
1.0
0.5
0
25 75
1963 G33
–25 0
50 100 125
I
L
= 1.5A
I
L
= 500mA
I
L
= 100mA
TEMPERATURE (°C)
–50
LOAD REGULATION (mV)
10
5
0
–5
–10
–15
–20
25 75
1963 G34
–25 0
50 100 125
LT1963
LT1963-3.3
LT1963-2.5
V
IN
= V
OUT(NOMINAL)
+1V
(LT1963-1.5/-1.8/-2.5/-3.3)
V
IN
= 2.7V (LT1963)
∆I
L
= 1mA TO 1.5A
LT1963-1.5
LT1963-1.8
FREQUENCY (Hz)
10
0.01
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
0.1
1.0
1k 100k
1963 G35
100 10k
C
OUT
= 10µF
I
L
=1.5A
LT1963-3.3
LT1963-2.5
LT1963
LT1963-1.5
LT1963-1.8
LOAD CURRENT (A)
OUTPUT NOISE VOLTAGE (µV
RMS
)
50
45
40
35
30
25
20
15
10
5
0
0.0001 0.01 0.1 10
1063 G36
0.001 1
C
OUT
= 10µF
LT1963-3.3
LT1963-2.5
LT1963-1.8
LT1963-1.5
LT1963
V
OUT
100µV/DIV
1ms/DIV
C
OUT
= 10µF
I
LOAD
= 1.5A
1963 G37
LT1963 Minimum Input Voltage
Load Regulation
Output Noise Spectral Density
RMS Output Noise vs Load
Current (10Hz to 100kHz)
LT1963-3.3 10Hz to 100kHz Output Noise
TIME (µs)
200
150
100
50
0
–50
–100
0.6
0.4
0.2
0
OUTPUT VOLTAGE
DEVIATION (mV)
1963 G38
0246
8
10
12 14 16 18 20
V
IN
= 4.3V
C
IN
= 3.3µF TANTALUM
C
OUT
= 10µF TANTALUM
LOAD
CURRENT (A)
TIME (µs)
150
100
50
0
–50
–100
–150
1.5
1.0
0.5
0
OUTPUT VOLTAGE
DEVIATION (mV)
LOAD
CURRENT (A)
1963 G39
0 50 100 150
250
300
350 400 450 500200
V
IN
= 4.3V
C
IN
= 33µF TANTALUM
C
OUT
= 100µF TANTALUM
+10 × 1µF CERAMIC
LT1963-3.3 Transient Response
LT1963-3.3 Transient Response
TYPICAL PERFOR A CE CHARACTERISTICS
UW
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LT1963EFE-1.8#PBF

Mfr. #:
Buy LT1963EFE-1.8#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 1.5A, Fast Transient LDO in FE-16
Lifecycle:
New from this manufacturer.
Delivery:
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