LT1121CN8-3.3#PBF Linear Technology, LT1121CN8-3.3#PBF Datasheet - Page 3

• 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): -

ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at T
PARAMETER
Regulated Output Voltage
(Note 4)
Line Regulation
Load Regulation
Dropout Voltage
(Note 6)
Ground Pin Current
(Note 7)
Adjust Pin Bias Current (Notes 5, 8)
Shutdown Threshold
Shutdown Pin Current (Note 9)
Quiescent Current in Shutdown (Note 10)
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Reverse Output Current (Note 11)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
CONDITIONS
LT1121-3.3
LT1121-5
LT1121 (Note 5)
LT1121-3.3
LT1121-5
LT1121 (Note 5)
LT1121-3.3
LT1121-5
LT1121 (Note 5)
I
I
I
LOAD
I
I
I
I
I
I
I
I
I
I
T
V
V
V
V
V
f
V
V
LT1121-3.3
LT1121-5
LT1121 (Note 5)
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
RIPPLE
A
J
OUT
OUT
SHDN
IN
IN
IN
IN
= 25°C
= 25°C.
= 6V, V
– V
– V
= –20V, V
= 50mA
= Off to On
= On to Off
= 1mA, T
= 1mA
= 50mA, T
= 100mA, T
= 100mA
= 150mA, T
= 150mA
= 0mA
= 1mA
= 10mA
= 50mA
= 100mA
= 150mA
= 0V
OUT
OUT
= 120Hz, I
SHDN
= 1V (Avg), V
= 7V, T
OUT
J
J
= 25°C
= 0V
J
J
LOAD
= 25°C
= 0V
J
= 25°C
= 25°C
= 25°C
V
4.3V < V
V
6V < V
V
4.8V < V
∆V
∆V
∆V
∆I
∆I
∆I
∆I
∆I
∆I
V
V
V
IN
IN
IN
OUT
OUT
OUT
= 0.1A
The
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
IN
IN
IN
RIPPLE
= 3.8V, I
= 5.5V, I
= 4.3V, I
= 4.8V to 20V, I
= 5.5V to 20V, I
= 4.3V to 20V, I
= 3.3V, V
= 5V, V
= 3.8V, V
IN
●
= 1mA to 150mA, T
= 1mA to 150mA
= 1mA to 150mA, T
= 1mA to 150mA
= 1mA to 150mA, T
= 1mA to 150mA
IN
IN
denotes specifications which apply over the operating temperature
< 20V, 1mA < I
= 0.5V
< 20V, 1mA < I
< 20V, 1mA < I
OUT
OUT
OUT
IN
Note 2: The shutdown pin input voltage rating is required for a low
impedance source. Internal protection devices connected to the shutdown
pin will turn on and clamp the pin to approximately 7V or – 0.6V. This
range allows the use of 5V logic devices to drive the pin directly. For high
IN
IN
= 0V
= 1mA, T
= 1mA, T
= 1mA, T
P-P
= 0V
= 0V
,
OUT
OUT
OUT
LT1121/LT1121-3.3/LT1121-5
OUT
J
J
J
= 1mA
= 1mA
= 1mA
OUT
OUT
= 25°C
= 25°C
= 25°C
J
J
J
< 150mA
= 25°C
= 25°C
= 25°C
< 150mA
< 150mA
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
3.250
3.200
4.925
4.850
3.695
3.640
MIN
0.25
50
3.300
3.300
5.000
5.000
3.750
3.750
0.13
0.30
0.37
0.42
TYP
– 12
– 20
– 17
– 28
– 12
– 18
350
150
200
1.5
1.5
1.5
1.5
4.0
7.0
1.2
0.75
30
90
15
58
16
16
16
6
3.350
3.400
5.075
5.150
3.805
3.860
MAX
0.16
0.25
0.35
0.50
0.45
0.60
0.55
0.70
14.0
– 25
– 40
– 35
– 50
– 25
– 40
120
500
300
500
2.5
7.0
2.8
1.0
10
10
10
50
10
22
25
25
25
UNITS
1121fc
3
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
µA
µA
µA
nA
µA
µA
dB
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V