LM22676MR-5.0/NOPB ,SIMPLE SWITCHER? 4.5V to 42V, 3A Step-Down Regulator with Precision Enable 8-SO PowerPAD -40 to 125 SNVS587L–SEPTEMBER 2008–REVISED NOVEMBER 20145 Pin Configuration and FunctionsSO PowerPAD PackageP ..
LM22676MR-ADJ , 3A SIMPLE SWITCHER Step-Down Voltage Regulator with Precision Enable
LM22676MRE-5.0/NOPB ,SIMPLE SWITCHER? 4.5V to 42V, 3A Step-Down Regulator with Precision Enable 8-SO PowerPAD -40 to 125Features 3 DescriptionThe LM22676 switching regulator provides all of the1• Wide Input Voltage Rang ..
LM22676TJ-ADJ , 3A SIMPLE SWITCHER Step-Down Voltage Regulator with Precision Enable
LM22676TJ-ADJ , 3A SIMPLE SWITCHER Step-Down Voltage Regulator with Precision Enable
LM22676TJE-5.0 , 3A SIMPLE SWITCHER Step-Down Voltage Regulator with Precision Enable
LM4040D41IDBZR ,4.096-V Precision Micropower Shunt Voltage Reference, 1% accuracy
LM4040D41IDBZRG4 ,4.096-V Precision Micropower Shunt Voltage Reference, 1% accuracy 3-SOT-23 -40 to 85
LM4040D41IDBZT ,4.096-V Precision Micropower Shunt Voltage Reference, 1% accuracy
LM4040D50IDBZR ,5-V Precision Micropower Shunt Voltage Reference, 1% accuracy
LM4040D50IDBZRG4 ,5-V Precision Micropower Shunt Voltage Reference, 1% accuracy 3-SOT-23 -40 to 85
LM4040D50IDBZT ,5-V Precision Micropower Shunt Voltage Reference, 1% accuracy
LM22676MR-5.0/NOPB-LM22676MRE-5.0/NOPB
3A SIMPLE SWITCHER, Step-Down Voltage Regulator with Precision Enable
LM22676-ADJVIN SW
GND
VIN• 100 mΩ N-Channel MOSFET PSOP-8 Package Excellent line and load regulation along with high• Output Voltage Options: efficiency(> 90%) are featured. Voltage mode control-ADJ (Outputsas Lowas 1.285V) offers short minimum on-time, allowing the widest
-5.0 (Output Fixedto5V) ratio between input and output voltages. Internal loop
compensation means that the useris free from the• ±1.5% Feedback Reference Accuracy tedious task of calculating the loop compensation• Switching Frequencyof 500 kHz components. Fixed5V output and adjustable output• –40°Cto 125°C Operating Junction voltage options are available.A switching frequency
Temperature Range of 500 kHz allows for small external components and
good transient response.A precision enable input• Precision Enable Pin allows simplificationof regulator control and system• Integrated Boot-Strap Diode power sequencing.In shutdown mode the regulator• Integrated Soft-Start draws only25 µA (typ). Builtin soft-start (500 µs, typ)
saves external components. The LM22676 also has• Fully WEBENCH® Enabled
builtin thermal shutdown, and current limiting to• LM22676Qisan Automotive Grade Product protect against accidental overloads.thatis AEC-Q100 Grade1 Qualified (–40°Cto
+125°C Operating Junction Temperature) The LM22676isa member of Texas Instruments'
SIMPLE SWITCHER® family. The SIMPLE• SO PowerPAD (Exposed Pad SWITCHER® concept provides for an easyto use• PFM (Exposed Pad) complete design usinga minimum numberof external
components and theTI WEBENCH® design tool. TI's
2 Applications WEBENCH® tool includes features such as external
component calculation, electrical simulation, thermal• Industrial Control simulation, and Build-It boardsfor easy design-in.• Telecom and Datacom Systems Embedded Systems
Device Information(1) Conversions from Standard24V,12V and5V
Input Rails
(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Application Schematic
