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LT1121-3.3_15 Datasheet, PDF (2/16 Pages) Linear Technology – Micropower Low Dropout Regulators with Shutdown
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LT1121/LT1121-3.3/LT1121-5
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage
LT1121............................................................... ± 30V
LT1121HV................................................ +36V, – 30V
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
Output Short-Circuit Duration ........................ Indefinite
Operating Junction Temperature Range (Note 3)
LT1121C-X............................................. 0°C to 125°C
LT1121I-X ......................................... – 40°C to 125°C
Storage Temperature Range...................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C
PIN CONFIGURATION
OUT 1
NC/ADJ* 2
GND 3
NC 4
TOP VIEW
8 IN
7 NC**
6 NC**
5 SHDN
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 120°C/W (N8, S8)
TJMAX = 150°C, θJA = 70°C/W (AS8)
*PIN 2 = NC FOR LT1121-3.3/LT1121-5
= ADJ FOR LT1121
** 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.
TAB IS
GND
FRONT VIEW
3 OUTPUT
2 GND
1 VIN
ST PACKAGE
3-LEAD PLASTIC SOT-223
TJMAX = 150°C, θJA = 50°C/W
BOTTOM VIEW
IN GND OUT
Z PACKAGE
3-LEAD PLASTIC TO-92
TJMAX = 150°C, θJA = 150°C/W
ORDER INFORMATION
LEAD FREE FINISH
LT1121CN8#PBF
LT1121CN8-3.3#PBF
LT1121CN8-5#PBF
LT1121IN8#PBF
LT1121IN8-3.3#PBF
LT1121IN8-5#PBF
LT1121CS8#PBF
LT1121CS8-3.3#PBF
LT1121CS8-5#PBF
LT1121HVCS8#PBF
LT1121IS8#PBF
LT1121IS8-3.3#PBF
LT1121IS8-5#PBF
LT1121HVIS8#PBF
LT1121ACS8#PBF
LT1121ACS8-3.3#PBF
LT1121ACS8-5#PBF
TAPE AND REEL
PART MARKING
LT1121CN8#TRPBF
LT1121CN8
LT1121CN8-3.3#TRPBF LT1121CN8-3.3
LT1121CN8-5#TRPBF LT1121CN8-5
LT1121IN8#TRPBF
LT1121IN8
LT1121IN8-3.3#TRPBF LT1121IN8-3.3
LT1121IN8-5#TRPBF LT1121IN8-5
LT1121CS8#TRPBF
1121
LT1121CS8-3.3#TRPBF 11213
LT1121CS8-5#TRPBF 11215
LT1121HVCS8#TRPBF 1121HV
LT1121IS8#TRPBF
1121I
LT1121IS8-3.3#TRPBF 121I3
LT1121IS8-5#TRPBF
121I5
LT1121HVIS8#TRPBF 121HVI
LT1121ACS8#TRPBF
1121A
LT1121ACS8-3.3#TRPBF 1121A3
LT1121ACS8-5#TRPBF 1121A5
2
PACKAGE DESCRIPTION
8-Lead Plastic PDIP
8-Lead Plastic PDIP
8-Lead Plastic PDIP
8-Lead Plastic PDIP
8-Lead Plastic PDIP
8-Lead Plastic PDIP
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
8-Lead Plastic S0
TEMPERATURE RANGE
0°C to 125°C
0°C to 125°C
0°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
0°C to 125°C
0°C to 125°C
0°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
0°C to 125°C
0°C to 125°C
0°C to 125°C
1121fg
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