LT1121CS8-3.3#PBF Linear Technology, LT1121CS8-3.3#PBF Datasheet - Page 3
![IC REG LDO 3.3V 150MA 8-SOIC](/photos/12/61/126143/lt1121cs8-3_3_pbf_sml.jpg)
LT1121CS8-3.3#PBF
Manufacturer Part Number
LT1121CS8-3.3#PBF
Description
IC REG LDO 3.3V 150MA 8-SOIC
Manufacturer
Linear Technology
Datasheet
1.LT1121CZ-5PBF.pdf
(16 pages)
Specifications of LT1121CS8-3.3#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
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Primary Input Voltage
30V
Output Voltage Fixed
3.3V
Dropout Voltage Vdo
420mV
No. Of Pins
8
Output Current
150mA
Operating Temperature Range
0°C To +125°C
Msl
MSL 1 - Unlimited
Rohs Compliant
Yes
Voltage Regulator Type
Linear
Topology
LDO
Regulator Output Type
Fixed
Polarity Type
Positive
Number Of Outputs
Single
Input Voltage (min)
-30V
Input Voltage (max)
30V
Output Voltage
3.3V
Package Type
SOIC N
Load Regulation
-25mV
Line Regulation
10mV
Operating Temp Range
0C to 125C
Operating Temperature Classification
Commercial
Dropout Voltage@current (max)
0.16@1mA/0.35@50mA
Dropout Voltage@current (typ)
0.13@1mA/0.42@150mA
Pin Count
8
Mounting
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations 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) V
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Reverse Output Current (Note 11)
CONDITIONS
LT1121-3.3
LT1121-5
LT1121 (Note 5)
LT1121-3.3
LT1121-5
LT1121 (Note 5) ΔV
LT1121-3.3
LT1121-5
LT1121 (Note 5) ΔI
I
I
I
I
I
I
I
I
I
I
I
I
I
I
T
V
V
V
V
I
V
V
LT1121-3.3
LT1121-5
LT1121 (Note 5) V
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
J
OUT
OUT
SHDN
IN
IN
IN
IN
= 25ºC
= 6V, V
– V
– V
= –20V, V
= Off to On
= On to Off
= 1mA, T
= 1mA
= 50mA, T
= 50mA
= 100mA, T
= 100mA
= 150mA, T
= 150mA
= 0mA
= 1mA
= 10mA
= 50mA
= 100mA
= 150mA
= 0.1A
= 0V
OUT
OUT
SHDN
= 1V (Avg), V
= 7V, T
OUT
J
= 0V
A
J
= 25ºC
= 0V
J
J
= 25ºC
J
= 25°C.
V
V
ΔV
ΔV
ΔI
ΔI
V
V
4.3V < V
6V < V
4.8V < V
ΔI
ΔI
ΔI
= 25ºC
= 25ºC
V
= 25ºC
OUT
IN
IN
OUT
OUT
IN
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
IN
IN
IN
= 3.8V, I
= 5.5V, I
= 4.3V, I
The
= 4.3V TO 20V, I
= 3.8V, V
= 4.8V TO 20V, I
= 5.5V TO 20V, I
= 3.3V, V
= 5V, V
RIPPLE
IN
= 1mA to 150mA, T
= 1mA to 150mA, T
= 1mA to 150mA, T
= 1mA to 150mA
= 1mA to 150mA
= 1mA to 150mA
IN
IN
< 20V, 1mA < I
l
< 20V, 1mA < I
< 20V, 1mA < I
OUT
OUT
denotes the specifi cations which apply over the full operating
OUT
IN
= 0.5V
IN
IN
= 0V
= 1mA, T
= 1mA, T
= 1mA, T
= 0V
= 0V
LT1121/LT1121-3.3/LT1121-5
P-P
OUT
OUT
OUT
, f
OUT
RIPPLE
J
J
J
= 1mA
OUT
OUT
= 1mA
= 1mA
= 25ºC
= 25ºC
J
= 25ºC
J
J
< 150mA
= 25ºC
= 25ºC
= 25ºC
< 150mA
< 150mA
= 120Hz,
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
4.925
3.695
3.25
4.85
3.64
0.25
MIN
3.2
50
3.75
3.75
0.13
0.37
0.42
0.75
TYP
–12
–20
–17
–28
–12
–18
350
150
200
3.3
3.3
1.5
1.5
1.5
0.3
1.5
1.2
30
90
16
58
16
16
16
5
5
4
7
6
5.075
3.805
MAX
3.35
5.15
3.86
0.16
0.25
0.35
0.45
0.55
–25
–40
–35
–50
–25
–40
120
500
300
500
3.4
0.5
0.6
0.7
2.5
2.8
10
10
10
50
14
10
22
25
25
25
7
1
UNITS
1121ff
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