LT1121ACS8-3.3#PBF Linear Technology, LT1121ACS8-3.3#PBF Datasheet - Page 3

• Manufacturer Part Number: LT1121ACS8-3.3#PBF
• Description: IC REG LDO 3.3V 150MA 8-SOIC
• Manufacturer: Linear Technology

Specifications of LT1121ACS8-3.3#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: 20V
• Output Voltage Fixed: 3.3V
• Dropout Voltage Vdo: 400mV
• No. Of Pins: 8
• Output Current: 150mA
• Voltage Regulator Case Style: SOIC
• 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
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