Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 1 week ago) |
Mounting Type |
Surface Mount |
Package / Case |
20-TSSOP (0.173, 4.40mm Width) Exposed Pad |
Surface Mount |
YES |
Number of Pins |
20 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2009 |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Type |
DC DC Regulator |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Terminal Pitch |
0.65mm |
Frequency |
200kHz~3.5MHz |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
LT3477 |
Pin Count |
20 |
Number of Outputs |
1 |
Input Voltage-Nom |
2.5V |
Max Supply Voltage |
25V |
Min Supply Voltage |
2.5V |
Topology |
Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) |
Min Input Voltage |
2.3V |
Control Mode |
CURRENT-MODE |
Output Current-Max |
5A |
Control Technique |
PULSE WIDTH MODULATION |
Switcher Configuration |
BUCK-BOOST |
Current - Output / Channel |
3A Switch |
Internal Switch(s) |
Yes |
High Level Output Current |
10μA |
Low Level Output Current |
10μA |
Dimming |
PWM |
Number of Segments |
4 |
Length |
6.5mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
LT3477EFE#TRPBF Overview
The 20-TSSOP (0.173, 4.40mm Width) Exposed Pad package conserves board space. It has 1 outputs for LED drivers.The mounting method is Surface Mount.It emerges as a DC DC Regulator, which is efficient and reliable.It is able to work normally at the operating temperature of -40°C~85°C TA.The frequency of 200kHz~3.5MHz is used as the basis for its operation.The operation of this system is supported by 20 terminations.There are 20 pins used to form the base of its configuration.Based on our estimates, there are 4 segments.LT3477 is the base part number for the LED driver.25V is a maximum acceptable voltage for the supply.A total of 20 pins are present on this device.Further, it can be classified as Switching Regulator or Controllers based on its characteristics.As its minimal input voltage, it operates at 2.3V.It is designed to operate at a minimal voltage of 2.5V to achieve the highest efficiency.Operation of the device requires 2.5V volts to be applied to the circuit.The input voltage should be kept below 5A to ensure high stability.
LT3477EFE#TRPBF Features
Available in the 20-TSSOP (0.173, 4.40mm Width) Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 200kHz~3.5MHz
LT3477EFE#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LT3477EFE#TRPBF LED Driver ICs applications.
- Museum lighting
- Power source for accessories such as car audios, car navigation systems, and ETC systems
- Ultraviolet (UV) and Infrared (IR) Irradiation Devices
- Scanners and Handy Terminals
- Portable lighting
- Stage and Studio lighting
- OLED power supply for portable equipment
- Street lighting
- LED Lighting PFCs, Linear Dimmable
- Down lighting