Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 3 months ago) |
Mounting Type |
Surface Mount |
Package / Case |
16-TSSOP (0.173, 4.40mm Width) Exposed Pad |
Number of Pins |
16 |
Supplier Device Package |
16-TSSOP-EP |
Operating Temperature |
0°C~70°C TA |
Packaging |
Tube |
Published |
2004 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Max Operating Temperature |
85°C |
Min Operating Temperature |
-40°C |
Base Part Number |
LT1940 |
Function |
Step-Down |
Number of Outputs |
2 |
Voltage - Input (Max) |
25V |
Output Voltage |
19.5V |
Output Type |
Adjustable |
Max Output Current |
1.4A |
Voltage - Output 1 |
22V |
Voltage - Input (Min) |
3.6V |
Number of Channels |
1 |
Output Configuration |
Positive |
Current - Output |
1.4A |
Voltage - Output 2 |
22V |
Voltage - Output (Min/Fixed) |
1.25V |
Topology |
Buck |
Min Input Voltage |
3.6V |
Frequency - Switching |
1.1MHz |
Max Input Voltage |
25V |
Current - Output 1 |
1.4A |
Synchronous Rectifier |
No |
Voltage - Output (Max) |
22V |
Current - Output 2 |
1.4A |
Height |
950μm |
Length |
5.1mm |
Width |
4.5mm |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
LT1940EFE#PBF Overview
As a result of the use of the Tube package, the performance of this voltage regulator is optimized. Space savings are achieved by placing this voltage regulator in the 16-TSSOP (0.173, 4.40mm Width) Exposed Pad package. In this case, DC DC switching regulator has 2 outputs configured to it. The adjusting voltage regulator generates Adjustable output. This switching regulator is designed to fit the Surface Mount mounting system. 0°C~70°C TA should be the operating temperature when voltage regulator is operating. This DC-DC switching regulator has a switching frequency of 1.1MHz. Despite its low input voltage, this voltage regulator can operate. The adjusting voltage regulator's output voltage (Min/Fixed) is 1.25V. The output current of 1.4A makes dc to dc voltage regulator feature maximum design flexibility. Voltage regulator's input voltage can reach 25V. DC/DC regulators such as this one belong to the LT1940 family of products. There is a possibility that DC DC switching regulator can give voltage at 19.5V volts. In order to operate voltage regulator, there are 16 pins that must be connected. A 1.4A A maximum output current is required to meet the switching regulator operation requirements. By using the 22V's maximal output voltage, adjusting voltage regulator can operate easily. A high maximum operating temperature 85°C ensures stable operation of switching regulator. Reliability is ensured at minimum DC DC switching regulator's operating temperatures of -40°C. The dc to dc voltage regulator's input voltage must be at least 3.6V in order to work. It is designed to sustain a dc to dc voltage regulator's maximum 25V input voltage. I would like to point out that the voltage regulator 12v has 1 channels.
LT1940EFE#PBF Features
2 outputs
16 pins
1 channels
LT1940EFE#PBF Applications
There are a lot of Linear Technology/Analog Devices LT1940EFE#PBF Voltage Regulators applications.
- Industrial robots
- Driver circuits
- Sensitive electronic devices
- Terrestrial set-top boxes
- Smoke exhaust equipment
- Elevator lighting
- Electric water heaters
- Hydrogen power
- Program control systems
- Scientific testing