Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 2 weeks ago) |
Mounting Type |
Surface Mount |
Package / Case |
32-WFQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
32 |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
Published |
2010 |
Series |
PolyPhase® |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
32 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Technology |
CMOS |
Terminal Position |
QUAD |
Terminal Pitch |
0.5mm |
Base Part Number |
LTC3858 |
Function |
Step-Down |
Number of Outputs |
2 |
Output Voltage |
24V |
Output Type |
Transistor Driver |
Input Voltage-Nom |
12V |
Number of Channels |
1 |
Analog IC - Other Type |
DUAL SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4V~38V |
Control Features |
Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start |
Input Voltage (Min) |
4V |
Topology |
Buck |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
105kHz~835kHz 350kHz~535kHz |
Input Voltage (Max) |
38V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PHASE-SHIFT |
Max Frequency |
850kHz |
Duty Cycle (Max) |
99% |
Clock Sync |
No |
Height Seated (Max) |
0.8mm |
Length |
5mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
LTC3858IUH-2#TRPBF Overview
Capsuled in the 32-WFQFN Exposed Pad package, the switching controller suits most application needs. The dc motor controller is adquate to generate for 2 outputs. A solid enclosure of Tape & Reel (TR) surrounds pmic. Transistor Driver dc switching's outputs (s) are supported. This dc control has a supply voltage and operating voltage of 4V~38V. Suitable for a -40°C~125°C TJ dc switcher. Using this switching controller, it is possible to switch at 105kHz~835kHz 350kHz~535kHz. The Surface Mount value makes it suitable for general dc dc regulator. The dcdc regulator features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start for efficient switching control. The switch converters are connected to an analog IC with a DUAL SWITCHING CONTROLLER output. There are a terminal (s) on the switching converters that are designed at QUAD. A variety of 32 terminations are available in dc switching. Some of the control techniques used by these dc dc converter ics are PULSE WIDTH MODULATION. DC switcher's input voltageis set to 12V. You can find other relevant dc to dc converter ics by searching "LTC3858". Total pins of switching converter are 32. It is recommended to use 4V as the minimum input voltage of dc dc voltage regulator. Statistically, DC regulator outputs 24V volts. A maximum voltage of 38V is accepted by the dc to dc regulator as an input voltage. There is a maximum frequency of 850kHz for this dc regulators. There are several dc to dc voltage regulator in the PolyPhase? series. Channels 1 are required for high-quality communication.
LTC3858IUH-2#TRPBF Features
Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start
PULSE WIDTH MODULATION
LTC3858IUH-2#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3858IUH-2#TRPBF DC to DC converter applications.
- Digital precision reference circuits
- Computer-related products
- Sensitive electronic devices
- Combined machine tools
- Digital display device
- Medical equipment
- Low output voltage switching power supply circuits
- Lathes
- Medical monitoring systems
- Television equipment