Parameters |
Mounting Type |
Surface Mount |
Package / Case |
28-TSSOP (0.173, 4.40mm Width) Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~150°C |
JESD-609 Code |
e3 |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
28 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
NOT SPECIFIED |
Terminal Pitch |
0.65mm |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
JESD-30 Code |
R-PDSO-G28 |
Function |
Step-Down |
Number of Outputs |
1 |
Output Type |
Transistor Driver |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive or Negative |
Voltage - Supply (Vcc/Vdd) |
2.5V~60V |
Control Features |
Enable, Frequency Control, Power Good, Soft Start, Tracking |
Input Voltage (Min) |
2.5V |
Topology |
Buck |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
50kHz~1MHz |
Input Voltage (Max) |
60V |
Synchronous Rectifier |
Yes |
Duty Cycle (Max) |
99% |
Length |
9.7mm |
Width |
4.4mm |
RoHS Status |
Non-RoHS Compliant |
LT3840HFE Overview
With its 28-TSSOP (0.173, 4.40mm Width) Exposed Pad package, the switching controller fits the needs of most applications. For outputs of 1, this dc motor controller is suitable. Transistor Driver dc switching's outputs (s) can be handled by it. This dc control operates at 2.5V~60V and has a 2.5V~60V supply voltage. Workable in an dc switcher where -40°C~150°C is the -40°C~150°Crm. Using this switching controller, it is possible to switch at 50kHz~1MHz. The Surface Mount allows it to be used for dc dc regulator in general. In order to control switching efficiently, the dcdc regulator features Enable, Frequency Control, Power Good, Soft Start, Tracking. The switch converters are connected to a SWITCHING CONTROLLER analog IC. Switching converters are designed with the terminal (s) at position DUAL . There are many different types of terminations for 28. It is recommended to use 2.5V as the minimum input voltage of dc dc voltage regulator. The dc to dc regulator can only accept a maximum input voltage of 60V.
LT3840HFE Features
Transistor Driver Outputs
Switching Frequency: 50kHz~1MHz
Enable, Frequency Control, Power Good, Soft Start, Tracking
LT3840HFE Applications
There are a lot of Linear Technology/Analog Devices LT3840HFE DC to DC converter applications.
- Household control circuits
- Computer-related products
- Window air conditioners
- Energy management systems
- Medical equipment
- Analog precision reference circuits
- Automatic plug-in machines
- Network technology
- Gear/thread machining machines
- Computed tomography (CT)