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LM3557SD-2/NOPB

LM3557SD-2/NOPB

LM3557SD-2/NOPB

Texas Instruments

PMIC LM3557 8 Pin 1.2MHz 8-WFDFN Exposed Pad

SOT-23

LM3557SD-2/NOPB Datasheet

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Specifications
Name Value
Type Parameter
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 8-WFDFN Exposed Pad
Number of Pins 8
Operating Temperature -40°C~85°C TA
Packaging Tape & Reel (TR)
JESD-609 Code e3
Part Status Obsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 8
ECCN Code EAR99
Type DC DC Regulator
Terminal Finish Matte Tin (Sn)
Applications Backlight
Terminal Position DUAL
Peak Reflow Temperature (Cel) 260
Number of Functions 1
Frequency 1.2MHz
Base Part Number LM3557
Number of Outputs 1
Output Voltage 22V
Input Voltage-Nom 3.6V
Max Supply Voltage 7.5V
Min Supply Voltage 2.7V
Output Current 800mA
Max Supply Current 800μA
Topology Step-Up (Boost)
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Current - Output / Channel 800mA Switch
Internal Switch(s) Yes
Number of Segments 5
Switching Frequency 1.25MHz
Voltage - Supply (Min) 2.7V
Height 800μm
Length 3mm
Width 3mm
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Pricing & Ordering
Quantity Unit Price Ext. Price
1 $0.748669 $0.748669
10 $0.706291 $7.06291
100 $0.666313 $66.6313
500 $0.628596 $314.298
1000 $0.593016 $593.016
LM3557SD-2/NOPB Product Details

LM3557SD-2/NOPB Overview


Using its 8-WFDFN Exposed Pad package, it is possible to save board space. This LED driver has 1 outputs.The led driver mounting is done by using Surface Mount.The system emerges as a DC DC Regulator with high efficiency.At -40°C~85°C TA, the led driver is capable of operating.There are considerable benefits for Backlight.This system operates at 1.2MHz frequency.In this case, the termination value is 8.Its configuration is based on 8 pins.It is possible for undetermined failures to occur if the voltage supply falls below 2.7V.Based on our estimates, there are 5 segments.I have mounted it by Surface Mount.There is a base part number LM3557 for this LED driver.In this case, 7.5V is acceptable.As a result, it runs at a minimal voltage of 2.7V in order to achieve the best efficiency.When the maximum supply current is less than 800μA, the device is able to provide a high level of efficiency.In this case, the load can only be supplied with 800mA current.When the switching frequency is maintained at 1.25MHz, this electronic component is able to fully play its functions.It has a voltage of 22V.Operation of the device requires 3.6V volts to be applied to the circuit.

LM3557SD-2/NOPB Features


Available in the 8-WFDFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 1.2MHz
Switching frequency of 1.25MHz
Output voltage of 22V

LM3557SD-2/NOPB Applications


There are a lot of Texas Instruments LM3557SD-2/NOPB LED Driver ICs applications.

  • Industrial LED Lighting: Image Recognition Devices
  • LED Lighting PFCs, Linear Dimmable
  • LED backlight driver for LCD displays for portable equipment
  • Street lighting
  • Portable lighting
  • General lighting
  • Power source for accessories such as car audios, car navigation systems, and ETC systems
  • Amusement Machines
  • Auxiliary lights for on-vehicle cameras
  • LED headlights

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