Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 2 weeks ago) |
Mounting Type |
Surface Mount |
Package / Case |
36-SSOP (0.209, 5.30mm Width) |
Surface Mount |
YES |
Number of Pins |
36 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tube |
Published |
2005 |
Series |
PolyPhase® |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
36 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Technology |
CMOS |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.65mm |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
LTC3731 |
Function |
Step-Down |
Number of Outputs |
3 |
Output Type |
Transistor Driver |
Input Voltage-Nom |
5V |
Number of Channels |
1 |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
3.8V~7V |
Control Features |
Enable, Phase Control, Power Good, Soft Start |
Input Voltage (Min) |
4.5V |
Topology |
Buck |
Control Mode |
CURRENT-MODE |
Output Current-Max |
5A |
Frequency - Switching |
225kHz~680kHz |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PHASE-SHIFT |
Max Frequency |
750kHz |
Duty Cycle (Max) |
98.5% |
Clock Sync |
No |
Height Seated (Max) |
2mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
LTC3731IG#PBF Overview
In the 36-SSOP (0.209, 5.30mm Width) package, the switching controller meets most application requirements. 3 outputs are supported by the dc motor controller. There is a Tube solid enclosure around the pmic. A total of Transistor Driver dc switching's outputs can be handled by it. This dc control operates at 3.8V~7V and has a 3.8V~7V supply voltage. Worked in a -40°C~85°C TA dc switcher before. In this switching controller, the switch can be set to 225kHz~680kHz. The Surface Mount allows it to be used for dc dc regulator in general. Switching control is made easier with the dcdc regulator's Enable, Phase Control, Power Good, Soft Start. Thare switch converters are connected to an analog integrated circuit (IC) of type SWITCHING CONTROLLER. The switching converters's terminal (s) are designed at DUAL . The 36 terminations can be used for a wide range of dc switching. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. DC switcher's voltage input is 5V. LTC3731 can be used to locate other relevant dc to dc converter ics. 36 pins are on switching converter. Specially, switching converter corresponds to type Switching Regulator or Controllers. It is recommended to use 4.5V as the minimum input voltage of dc dc voltage regulator. There is a maximum frequency of 750kHz for this dc regulators. A value of 5A is output as the maximum value of current. There are several dc to dc voltage regulator in the PolyPhase? series. Communication on 1 channels is high-quality.
LTC3731IG#PBF Features
Transistor Driver Outputs
Switching Frequency: 225kHz~680kHz
Enable, Phase Control, Power Good, Soft Start
PULSE WIDTH MODULATION
LTC3731IG#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC3731IG#PBF DC to DC converter applications.
- Handheld GPS
- Low output voltage switching power supply circuits
- Refrigerators of central air conditioners
- Medical monitoring systems
- Scientific research
- Window air conditioners
- Wind power
- Nuclear power plants
- Automation technology
- Die casting equipment