LT1121ACS8(RevA) Просмотр технического описания (PDF) - Linear Technology
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LT1121ACS8 Datasheet PDF : 12 Pages
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LT1121/LT1121-3.3/LT1121-5
ABSOLUTE AXI U RATI GS
Input Voltage ...................................................... ±30V*
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) .................. 20mA
Output Short-Circuit Duration ......................... Indefinite
Storage Temperature Range ................. – 65°C to 150°C
Operating Junction Temperature Range (Note 2)
LT1121C-X ......................................... 0°C to 125°C
LT1121I-X ..................................... – 40°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
*For applications requiring input voltage ratings greater than 30V, contact the factory.
PACKAGE/ORDER I FOR ATIO
OUT 1
NC/ADJ* 2
GND 3
NC 4
TOP VIEW
8 IN
7 NC**
6 NC**
5 SHDN
N8 PACKAGE
8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SOIC
θJA ≈ 120°C/ W (N8, S8)
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.
ORDER PART NUMBER
S8 PART
MARKING
LT1121CN8
LT1121CN8-3.3
LT1121CN8-5
LT1121IN8
LT1121IN8-3.3
LT1121IN8-5
LT1121CS8
LT1121CS8-3.3
LT1121CS8-5
LT1121IS8
LT1121IS8-3.3
LT1121IS8-5
LT1121ACS8
LT1121ACS8-3.3
LT1121ACS8-5
LT1121AIS8
LT1121AIS8-3.3
LT1121AIS8-5
Consult factory for Military grade parts.
1121 1121A
11213 121A3
11215 121A5
1121I 121AI
121I3 121AI3
121I5 121AI5
TAB IS
GND
FRONT VIEW
3 OUTPUT
2 GND
1 VIN
ST PACKAGE
3-LEAD PLASTIC SOT-223
LT1121 • PO03
θJA ≈ 50°C/ W
ORDER PART
NUMBER
LT1121CST-3.3
LT1121IST-3.3
LT1121CST-5
LT1121IST-5
BOTTOM VIEW
3 21
IN GND OUT
Z PACKAGE
3-LEAD PLASTIC TO-92
LT1121 • PO02
θJA ≈ 150°C/ W
ORDER PART
NUMBER
LT1121CZ-3.3
LT1121IZ-3.3
LT1121CZ-5
LT1121IZ-5
ELECTRICAL CHARACTERISTICS
PARAMETER
Regulated Output Voltage
(Note 3)
Line Regulation
CONDITIONS
LT1121-3.3
LT1121-5
LT1121 (Note 4)
LT1121-3.3
LT1121-5
LT1121 (Note 4)
VIN = 3.8V, IOUT = 1mA, TJ = 25°C
4.3V < VIN < 20V, 1mA < IOUT < 150mA
VIN = 5.5V, IOUT = 1mA, TJ = 25°C
6V < VIN < 20V, 1mA < IOUT < 150mA
VIN = 4.3V, IOUT = 1mA, TJ = 25°C
4.8V < VIN < 20V, 1mA < IOUT < 150mA
∆VIN = 4.8V to 20V, IOUT = 1mA
∆VIN = 5.5V to 20V, IOUT = 1mA
∆VIN = 4.3V to 20V, IOUT = 1mA
MIN TYP MAX
UNITS
3.250 3.300 3.350
V
q
3.200 3.300 3.400
V
4.925 5.000 5.075
V
q
4.850 5.000 5.150
V
3.695 3.750 3.805
V
q
3.640 3.750 3.860
V
q
1.5
10
mV
q
1.5
10
mV
q
1.5
10
mV
2
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