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  • LT3477EUF#PBF

LT3477EUF#PBF

0.5mm PMIC LT3477 20 Pin 200kHz~3.5MHz 20-WFQFN Exposed Pad


  • Manufacturer: Linear Technology/Analog Devices
  • Origchip NO: 471-LT3477EUF#PBF
  • Package: 20-WFQFN Exposed Pad
  • Datasheet: PDF
  • Stock: 995
  • Description: 0.5mm PMIC LT3477 20 Pin 200kHz~3.5MHz 20-WFQFN Exposed Pad (Kg)

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Details

Tags

Parameters
Operating Supply Voltage 3.3V
Input Voltage-Nom 2.5V
Max Supply Voltage 25V
Min Supply Voltage 2.5V
Output Current 3A
Max Output Voltage 40V
Topology Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
Min Input Voltage 2.3V
Control Mode CURRENT-MODE
Max Input Voltage 25V
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
Switching Frequency 3.5MHz
Height 750μm
Length 4mm
Width 4mm
Radiation Hardening No
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Factory Lead Time 8 Weeks
Lifecycle Status PRODUCTION (Last Updated: 2 weeks ago)
Mounting Type Surface Mount
Package / Case 20-WFQFN Exposed Pad
Surface Mount YES
Number of Pins 20
Operating Temperature -40°C~85°C TA
Packaging Tube
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 QUAD
Peak Reflow Temperature (Cel) 260
Number of Functions 1
Terminal Pitch 0.5mm
Frequency 200kHz~3.5MHz
Time@Peak Reflow Temperature-Max (s) 30
Base Part Number LT3477
Pin Count 20
Number of Outputs 1
Output Voltage 42V

LT3477EUF#PBF Overview


It saves board space with the 20-WFQFN Exposed Pad package. Using this LED driver, there are 1 outputs.The led driver mounting is done by using Surface Mount.In this case, the result is a DC DC Regulator with high efficiency.The led light driver can work at -40°C~85°C TA.In this case, the frequency is 200kHz~3.5MHz.It operates with terminations of 20.It is configured with 20 pins as its base.A total of 4 segments are estimated.This LED driver has the part number LT3477.It is acceptable to operate with a supply voltage of 25V.In addition, it is equipped with a total of 20 pins.According to its characteristics, it is also categorized into Switching Regulator or Controllers.As its minimal input voltage, it operates at a voltage of 2.3V.In order to achieve the highest efficiency, it is designed to operate at a low voltage of 2.5V.When the maximum supply current is allowed, it reaches 25V.A load can be supplied with 3A current.In order to power systems, 3.3V voltage is needed.Electronic components can function properly when their switching frequency is set to 3.5MHz.The output voltage is 42V.40V should be the maximum output voltage.Device operation requires 2.5V volts from the circuit.

LT3477EUF#PBF Features


Available in the 20-WFQFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 200kHz~3.5MHz
Operating with the supply voltage of 3.3V
Switching frequency of 3.5MHz
Output voltage of 42V

LT3477EUF#PBF Applications


There are a lot of Linear Technology/Analog Devices LT3477EUF#PBF LED Driver ICs applications.

  • Constant Voltage Power Source for portable equipment
  • White LED Backlight for portable equipment
  • Museum lighting
  • General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
  • Gallery lighting
  • Refrigeration lighting
  • Architectural lighting
  • Replacement lamps
  • Stage and Studio lighting
  • Down lights