LT1121AIS8 Linear Technology, LT1121AIS8 Datasheet - Page 2

• Manufacturer Part Number: LT1121AIS8
• Description: IC REG LDO ADJ 150MA 8-SOIC
• Manufacturer: Linear Technology

Specifications of LT1121AIS8

• Regulator Topology: Positive Adjustable
• Voltage - Output: 3.75 ~ 30 V
• Voltage - Input: 4.17 ~ 30 V
• Voltage - Dropout (typical): 0.42V @ 150mA
• Number Of Regulators: 1
• Current - Output: 150mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Limit (min): -

ABSOLUTE MAXIMUM RATINGS
LT1121/LT1121-3.3/LT1121-5
(Note 1)
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 INFORMATION
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
2
T
T
LT1121CN8
LT1121CN8-3.3
LT1121CN8-5
LT1121IN8
LT1121IN8-3.3
LT1121IN8-5
LT1121CS8
LT1121CS8-3.3
LT1121CS8-5
LT1121HVCS8
LT1121IS8
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
NC/ADJ*
JMAX
JMAX
LT1121 .............................................................. ± 30V
LT1121HV ............................................... +36V, – 30V
GND
OUT
= 150°C, θ
= 150°C, θ
NC
ORDER PART NUMBER
1
2
3
4
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
JA
JA
TOP VIEW
= 120°C/W (N8, S8)
= 70°C/W (AS8)
LT1121IS8-3.3
LT1121IS8-5
LT1121HVIS8
LT1121ACS8
LT1121ACS8-3.3
LT1121ACS8-5
LT1121AHVCS8
LT1121AIS8
LT1121AIS8-3.3
LT1121AIS8-5
LT1121AHVIS8
8
7
6
5
IN
NC**
NC**
SHDN
**
*
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.
= ADJ FOR LT1121
1121
11213
11215
1121HV
1121I
S8 PART MARKING
121I3
121I5
121HVI
1121A
121A3
121A5
121AHV
121AI
121AI3
121AI5
21AHVI
Output Short-Circuit Duration ....................... Indefi nite
Operating Junction Temperature Range (Note 3)
Storage Temperature Range ...................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
LT1121CST-3.3
LT1121IST-3.3
LT1121CST-5
LT1121IST-5
ORDER PART
LT1121C-X ............................................ 0°C to 125°C
LT1121I-X ........................................ – 40°C to 125°C
NUMBER
TAB IS
GND
T
3-LEAD PLASTIC SOT-223
JMAX
= 150°C, θ
FRONT VIEW
ST PACKAGE
11213
121I3
11215
1121I5
JA
= 50°C/W
MARKING
ST PART
3
2
1
OUTPUT
GND
V
IN
LT1121CZ-3.3
LT121IZ-3.3
LT1121CZ-5
LT1121IZ-5
T
JMAX
3-LEAD PLASTIC TO-92
ORDER PART
IN
= 150°C, θ
BOTTOM VIEW
NUMBER
Z PACKAGE
GND
JA
= 150°C/W
OUT
1121ff