LT1521-3_15 Datasheet, PDF (2/16 Pages) Linear Technology – 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown

LT1521/LT1521-3
LT1521-3.3/LT1521-5
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage ...................................................... ± 20V*
Output Pin Reverse Current .................................. 10mA
Adjust Pin Current ................................................ 10mA
Shutdown Pin Input Voltage (Note 1) .......... 6.5V, – 0.6V
Shutdown Pin Input Current (Note 1) ..................... 5mA
Output Short-Circuit Duration .......................... Indefinite
Storage Temperature Range ................. – 65°C to 150°C
Operating Junction Temperature Range (Note 2)
Commercial ........................................... 0°C to 125°C
Industrial ......................................... – 40°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
*For applications requiring input voltage ratings greater than 20V, contact
the factory.
PACKAGE/ORDER INFORMATION
OUT 1
SENSE/ADJ* 2
NC 3
GND 4
TOP VIEW
8 IN
7 NC
6 NC
5 SHDN
MS8 PACKAGE
8-LEAD PLASTIC MSOP
*PIN 2 = SENSE FOR LT1521-3/
LT1521-3.3/LT1521-5
PIN 2 = ADJ FOR LT1521
T_JMAX = 125°C, θ_JA = 125°C/ W
ORDER PART NUMBER
LT1521CMS8
LT1521CMS8-3
LT1521CMS8-3.3
LT1521CMS8-5
TOP VIEW
OUT 1
SENSE/ADJ* 2
GND 3
NC 4
8 IN
7 GND
6 GND
5 SHDN
S8 PACKAGE
8-LEAD PLASTIC SO
*PIN 2 = SENSE FOR LT1521-3/LT1521-3.3/LT1521-5
= ADJ FOR LT1521
T_JMAX = 125°C, θ_JA = 70°C/ W
SEE THE APPLICATIONS INFORMATION SECTION
ORDER PART NUMBER
LT1521CS8
LT1521CS8-3
LT1521CS8-3.3
LT1521CS8-5
LT1521IS8
LT1521IS8-3
LT1521IS8-3.3
LT1521IS8-5
MS8 PART MARKING
LTEZ
LTFB
LTDU
LTFA
S8 PART MARKING
1521
15213
152133
15215
1521I
1521I3
1521I33
1521I5
Consult LTC Marketing for parts specified with wider operating temperature ranges.
FRONT VIEW
3 OUT
TAB IS
GND
2 GND
1 IN
ST PACKAGE
3-LEAD PLASTIC SOT-223
T_JMAX = 125°C, θ_JA = 50°C/ W
SEE THE APPLICATIONS INFORMATION SECTION
ORDER PART NUMBER
LT1521CST-3
LT1521CST-3.3
LT1521CST-5
LT1521IST-3
LT1521IST-3.3
LT1521IST-5
ST PART MARKING
15213
152133
15215
1521I 3
1521I 33
1521I 5
2
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