LM22671MR-ADJ/NOPB ,500mA SIMPLE SWITCHER?, Step-Down Voltage Regulator with Adjustable Frequency 8-SO PowerPAD -40 to 125Features 3 DescriptionThe LM22671 switching regulator provides all of the1• Wide Input Voltage Rang ..
LM22671MRE-ADJ , 500 mA SIMPLE SWITCHER®, Step-Down Voltage Regulator with Features
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LM22671MR-ADJ/NOPB
500mA SIMPLE SWITCHER庐, Step-Down Voltage Regulator with Adjustable Frequency
VIN SW
BOOT
VIN
VOUT• Output Voltage Options: Excellent line and load regulation along with high-ADJ (Outputsas Lowas 1.285V) efficiency(> 90%) are featured. Voltage mode control-5.0 (Output Fixedto5V) offers short minimum on-time, allowing the widest ±1.5% Feedback Reference Accuracy ratio between input and output voltages. Internal loop
compensation means that the useris free from the• 500 kHz Default Switching Frequency tedious task of calculating the loop compensation• Adjustable Switching Frequency and components. Fixed5V output and adjustable outputSynchronization voltage options are available. The default switching –40°Cto 125°C Operating Junction frequency is set at 500 kHz allowing for small
Temperature Range external components and good transient response.In
addition, the frequency canbe adjusted overa range• Precision Enable Pin of 200 kHzto1 MHz witha single external resistor.• Integrated Boot-Strap Diode The internal oscillator can be synchronized toa• Adjustable Soft-Start system clockorto the oscillatorof another regulator. precision enable input allows simplification of• Fully WEBENCH® Enabled
regulator control and system power sequencing.In• LM22671-Q1isan Automotive Grade Product shutdown mode the regulator draws only25 µA (typ).thatis AEC-Q100 Grade1 Qualified (–40°Cto An adjustable soft-start featureis provided through+125°C Operating Junction Temperature) the selection ofa single external capacitor. The SO PowerPAD™ (Exposed Pad) LM22671 device also has built-in thermal shutdown
and current limiting to protect against accidental
overloads.
2 Applications Industrial Control The LM22671 device is a member of Texas
Instruments' SIMPLE SWITCHER® family. The• Telecom and Datacom Systems SIMPLE SWITCHER concept provides for an easyto• Embedded Systems use complete design usinga minimum numberof Conversions from Standard24V,12V and5V external components and theTI WEBENCH design
Input Rails tool. TI's WEBENCH tool includes features such as
external component calculation, electrical simulation,
Simplified Application Schematic thermal simulation, and Build-It boards for easy
design-in.
Device Information(1)
