LM22674MRX-ADJ/NOPB ,500 mA SIMPLE SWITCHER?, Step-Down Voltage Regulator with Precision Enable 8-SO PowerPAD -40 to 125Features 3 DescriptionThe LM22674 switching regulator provides all of the1• Wide Input Voltage Rang ..
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LM22676MR-ADJ , 3A SIMPLE SWITCHER Step-Down Voltage Regulator with Precision Enable
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LM22674MRX-ADJ/NOPB
500 mA SIMPLE SWITCHER庐, Step-Down Voltage Regulator with Precision Enable
LM22674-ADJVIN SW
BOOT
GND• 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• Switching Frequencyof 500 kHz tedious task of calculating the loop compensation• –40°Cto 125°C Operating Junction Temperature components. Fixed5V output and adjustable outputRange voltage options are available.A switching frequency Precision Enable Pin of 500 kHz allows for small external components and
good transient response.A precision enable input• Integrated Boot-Strap Diode allows simplificationof regulator control and system• Integrated Soft-Start power sequencing.In shutdown mode the regulator• Fully WEBENCH® Enabled draws only25 µA (typ). Builtin soft-start (500 µs, typ)
saves external components. The LM22674 also has• LM22674-Q1isan Automotive Grade Product
builtin thermal shutdown, and current limiting tothatis AEC-Q100 Grade1 Qualified (–40°Cto
protect against accidental overloads.+125°C Operating Junction Temperature) SO PowerPAD (Exposed Pad) The LM22674 device is a member of Texas
Instruments' SIMPLE SWITCHER® family. The
SIMPLE SWITCHER® concept provides for an easy
2 Applications to use complete design usinga minimum numberof• Industrial Control external components and theTI WEBENCH® design Telecom and Datacom Systems tool. TI's WEBENCH® tool includes features such as
external component calculation, electrical simulation,• Embedded Systems thermal simulation, and Build-It boards for easy• Conversions from Standard24V,12V and5V design-in.Input Rails
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Application Schematic
