LT1121CN8-3.3#PBF Linear Technology, LT1121CN8-3.3#PBF Datasheet - Page 7

• Manufacturer Part Number: LT1121CN8-3.3#PBF
• Description: IC REG LDO 3.3V 150MA 8-DIP
• Manufacturer: Linear Technology

Specifications of LT1121CN8-3.3#PBF

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: 4.17 ~ 30 V
• Voltage - Dropout (typical): 0.42V @ 150mA
• Number Of Regulators: 1
• Current - Output: 150mA
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Primary Input Voltage: 20V
• Output Voltage Fixed: 3.3V
• Dropout Voltage Vdo: 400mV
• No. Of Pins: 8
• Output Current: 150mA
• Voltage Regulator Case Style: DIP
• Operating Temperature Range: 0°C To +125°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -

TYPICAL PERFOR A CE CHARACTERISTICS
–20
–25
–30
–35
–40
–10
–15
100
–5
90
80
70
60
50
40
30
20
10
0
–50
0
Load Regulation
0
Reverse Output Current
∆I
* ADJ PIN TIED TO
T
V
CURRENT FLOWS
INTO OUTPUT PIN
J
IN
LOAD
OUTPUT PIN
–25
= 25°C
1
= 0V
= 1mA TO 150mA
2
0
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
3
(V
LT1121-3.3
LT1121*
OUT
4
25
LT1121
= V
5
50
ADJ
LT1121-5
6
)
75
7
LT1121-3.3
LT1121-5
W
8
100
1121 G21
1121 G01
9
U
125
10
–0.1
–0.2
150
100
0.2
0.1
64
62
60
58
56
54
52
50
–50
0
0
LT1121-5
Load Transient Response
Ripple Rejection
V
+ 0.5V
I
V
C
C
OUT
IN
IN
IN
OUT
0.1
–25
= V
= 6V
= 0.1µF
= 100mA
P-P
= 1µF
OUT
0.2 0.3
RIPPLE AT f = 120Hz
(NOMINAL) + 1V
0
TEMPERATURE (°C)
0.4
25
TIME (ms)
0.5
50
0.6
0.7
75
LT1121/LT1121-3.3/LT1121-5
0.8
100
0.9
1121 G18
1121 G30
125
1.0
100
–0.1
–0.2
150
100
90
80
70
60
50
40
30
20
10
0.2
0.1
50
0
0
10
Ripple Rejection
LT1121-5
Load Transient Response
0
I
V
OUT
V
C
C
IN
IN
IN
OUT
0.1
= 6V + 50mV
= 6V
= 0.1µF
= 100mA
= 3.3µF
100
0.2 0.3
FREQUENCY (Hz)
SOLID TANTALUM
RMS
1k
0.4
TIME (ms)
RIPPLE
0.5
C
SOLID TANTALUM
OUT
C
10k
0.6
OUT
= 1µF
0.7
= 47µF
100k
0.8
1121 G26
0.9
1121 G31
1121fc
7
1M
1.0