Parameters |
Mounting Type |
Surface Mount |
Package / Case |
28-TSSOP (0.173, 4.40mm Width) Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-55°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 |
LT3840MPFE Overview
The switching controller fits in the 28-TSSOP (0.173, 4.40mm Width) Exposed Pad package and is ideal for most applications. It is sufficient to generate 1 outputs with this dc motor controller. Transistor Driver dc switching's outputs (s) can be handled by it. dc control's supply and operating voltages are 2.5V~60V. Qualified to work in a -55°C~150°C dc switcher. Switching can be done at 50kHz~1MHz with this switching controller. A generalization of dc dc regulator can be made using Surface Mount. Enable, Frequency Control, Power Good, Soft Start, Tracking provides dcdc regulator efficient switching control. An analog IC with the SWITCHING CONTROLLER signal is connected to the switch converters. Thare switching converters has a terminal (s) at DUAL . The 28 terminations can be used for a wide range of dc switching. It is recommended that the dc dc voltage regulator's minimum input voltage be 2.5V. The dc to dc regulator can only accept 60V input voltage.
LT3840MPFE Features
Transistor Driver Outputs
Switching Frequency: 50kHz~1MHz
Enable, Frequency Control, Power Good, Soft Start, Tracking
LT3840MPFE Applications
There are a lot of Linear Technology/Analog Devices LT3840MPFE DC to DC converter applications.
- USB circuits
- Computer monitoring equipment of building
- Boring machines
- Scientific research
- Electrical distribution systems
- Access control systems
- Laboratories
- Remotely powered electric motors
- Driver circuits
- Correction machines