LM22674MRX-ADJ/NOPB National Semiconductor, LM22674MRX-ADJ/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM22674MRX-ADJ/NOPB
• Description: IC REG SWITCH BUCK .5A ADJ 8PSOP
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM22674MRX-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 1.285V
• Current - Output: 500mA
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 ~ 42 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-PSOP
• For Use With: 551600236-001 - WEBENCH BUILD IT LM2267X 8-PSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM22674MRX-ADJ

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Voltage
Output
Connection Diagram
Ordering Information
*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies.
Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified
with the letter Q. For more information go to http://www.national.com/automotive.
Pin Descriptions
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
5.0
5.0
5.0
5.0
5.0
5.0
Pins
2, 3
1
4
5
6
7
8
LM22674QMRE-ADJ
LM22674QMRX-ADJ
LM22674QMRE-5.0
LM22674QMRX-5.0
LM22674MRE-ADJ
LM22674MRX-ADJ
LM22674QMR-ADJ
LM22674QMR-5.0
LM22674MRE-5.0
LM22674MRX-5.0
LM22674MR-ADJ
LM22674MR-5.0
Order Number
Name
BOOT
GND
VIN
SW
NC
EN
FB
PSOP-8 Exposed Pad
PSOP-8 Exposed Pad
Description
Bootstrap input
Not Connected
Feedback pin
Precision enable pin
System ground
Source input voltage
Switch pin
Package Type
8-Lead Plastic PSOP-8 Package
NS Package Number MRA08B
NSC Package
Drawing
MRA08B
MRA08B
2
Application Information
Provides the gate voltage for the high side NFET.
Pins are not electrically connected inside the chip. Pins do function
as thermal conductor.
Inverting input to the internal voltage error amplifier.
When pulled low regulator turns off.
Provide good capacitive decoupling between VIN and this pin
Input to the regulator. Operates from 4.5V to 42V.
Attaches to the switch node
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30076940
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Supplied As
qualified. Automotive
AEC-Q100 Grade 1
Grade Production
Features
Flow*