LT1121CN8-3.3#PBF Linear Technology, LT1121CN8-3.3#PBF Datasheet - Page 2

• 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): -

ABSOLUTE AXI U RATI GS
LT1121/LT1121-3.3/LT1121-5
Input Voltage
Output Pin Reverse Current ................................. 10mA
Adjust Pin Current ............................................... 10mA
Shutdown Pin Input Voltage (Note 2) ........ 6.5V, – 0.6V
Shutdown Pin Input Current (Note 2) .................. 20mA
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider opearating temperature ranges.
2
LT1121 ............................................................. ±30V
LT1121HV ............................................. +36V, – 30V
NC/ADJ*
LT1121CN8
LT1121CN8-3.3
LT1121CN8-5
LT1121IN8
LT1121IN8-3.3
LT1121IN8-5
LT1121CS8
LT1121CS8-3.3
LT1121CS8-5
LT1121HVCS8
LT1121IS8
T
T
GND
JMAX
JMAX
OUT
NC
= 150°C, θ
= 150°C, θ
1
2
3
4
ORDER PART NUMBER
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
TOP VIEW
JA
JA
≈ 120°C/ W (N8, S8)
≈ 70°C/ W (AS8)
W
8
7
6
5
LT1121IS8-3.3
LT1121IS8-5
LT1121HVIS8
LT1121ACS8
LT1121ACS8-3.3
LT1121ACS8-5
LT1121AHVCS8
LT1121AIS8
LT1121AIS8-3.3
LT1121AIS8-5
LT1121AHVIS8
IN
NC**
NC**
SHDN
W W
**
*
PIN 2 = NC FOR LT1121-3.3/LT1121-5
PINS 6 AND 7 ARE FLOATING (NO
INTERNAL CONNECTION) ON THE
STANDARD S8 PACKAGE.
PINS 6 AND 7 CONNECTED TO GROUND
ON THE A VERSION OF THE LT1121 (S8 ONLY).
CONNECTING PINS 6 AND 7 TO THE
GROUND PLANE WILL REDUCE THERMAL
RESISTANCE. SEE THERMAL RESISTANCE
TABLES IN THE APPLICATIONS INFORMATION
SECTION.
U
= ADJ FOR LT1121
W
U
1121
11213
11215
1121H
1121I
121I3
121I5
121IH
MARKING
S8 PART
(Note 1)
U
1121A
121A3
121A5
121AH
121AI
121AI3
121AI5
121AIH
Output Short-Circuit Duration ......................... Indefinite
Operating Junction Temperature Range (Note 3)
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
LT1121C-X ........................................... 0°C to 125°C
LT1121I-X ....................................... – 40°C to 125°C
TAB IS
GND
T
3-LEAD PLASTIC SOT-223
JMAX
LT1121CST-3.3
LT1121IST-3.3
LT1121CST-5
LT1121IST-5
ORDER PART
= 150°C, θ
NUMBER
FRONT VIEW
ST PACKAGE
JA
≈ 50°C/ W
3
2
1
OUTPUT
GND
V
IN
T
JMAX
3-LEAD PLASTIC TO-92
ORDER PART
LT1121CZ-3.3
LT1121IZ-3.3
LT1121CZ-5
LT1121IZ-5
IN
= 150°C, θ
BOTTOM VIEW
NUMBER
Z PACKAGE
GND
JA
≈ 150°C/ W
OUT
1121fc