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LT1121CZ-3.3 Datasheet(PDF) 7 Page - Linear Technology

Part # LT1121CZ-3.3
Description  Micropower Low Dropout Regulators with Shutdown
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1121CZ-3.3 Datasheet(HTML) 7 Page - Linear Technology

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7
LT1121/LT1121-3.3/LT1121-5
1121fe
Reverse Output Current
OUTPUT VOLTAGE (V)
0
100
90
80
70
60
50
40
30
20
10
0
8
1121 G01
2
4
6
10
13
57
9
TJ = 25°C
VIN = 0V
CURRENT FLOWS
INTO OUTPUT PIN
LT1121-3.3
LT1121
(VOUT = VADJ)
LT1121-5
FREQUENCY (Hz)
100
90
80
70
60
50
40
30
20
10
0
10
1k
10k
1M
1121 G26
100
100k
COUT = 1μF
SOLID TANTALUM
COUT = 47μF
SOLID TANTALUM
IOUT = 100mA
VIN = 6V + 50mVRMS RIPPLE
Ripple Rejection
Ripple Rejection
TEMPERATURE (
°C)
–50
64
62
60
58
56
54
52
50
0
50
75
1121 G18
–25
25
100
125
VIN = VOUT (NOMINAL) + 1V
+ 0.5VP-P RIPPLE AT f = 120Hz
IOUT = 100mA
TYPICAL PERFOR A CE CHARACTERISTICS
Load Regulation
LT1121-5
Load Transient Response
LT1121-5
Load Transient Response
TIME (ms)
0
0.2
0.1
0
–0.1
–0.2
0.8
1121 G30
0.1
0.4
0.6
1.0
150
100
0.2 0.3
0.5
0.7
0.9
VIN = 6V
CIN = 0.1μF
COUT = 1μF
TIME (ms)
0
0.2
0.1
0
–0.1
–0.2
0.8
1121 G31
0.1
0.4
0.6
1.0
150
100
50
0.2 0.3
0.5
0.7
0.9
VIN = 6V
CIN = 0.1μF
COUT = 3.3μF
TEMPERATURE (
°C)
–50
0
–5
–10
–15
–20
–25
–30
–35
–40
0
50
75
1121 G21
–25
25
100
125
LT1121*
LT1121-5
LT1121-3.3
ΔILOAD = 1mA TO 150mA
* ADJ PIN TIED TO
OUTPUT PIN


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