LM22677TJ-ADJ/NOPB National Semiconductor, LM22677TJ-ADJ/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM22677TJ-ADJ/NOPB
• Description: IC REG SWITCH BUC 5A ADJ TO263-7
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM22677TJ-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 1.285V
• Current - Output: 5A
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 4.5 ~ 42 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-7 Thin
• For Use With: 551600233-001 - WEBENCH BUILD IT LM2267X TO-263LM22677EVAL - BOARD EVALUATION FOR LM22677
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM22677TJ-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
Pin
ADJ
ADJ
ADJ
ADJ
5.0
5.0
5.0
5.0
1
2
3
4
5
6
7
RT/SYNC
BOOT
Name
GND
VIN
SW
EN
LM22677QTJE-ADJ
FB
LM22677QTJE-5.0
LM22677TJE-ADJ
LM22677QTJ-ADJ
LM22677QTJ-5.0
LM22677TJE-5.0
LM22677TJ-ADJ
LM22677TJ-5.0
Order Number
Oscillator frequency adjust
Source input voltage
Precision enable pin
pin or frequency
synchronization
Bootstrap input
System ground
Feedback pin
Description
Switch pin
Package Type
TO-263 THIN
Exposed Pad
TO-263 THIN
Exposed Pad
7-Lead Plastic TO-263 THIN Package
NS Package Number TJ7A
Application Information
Attaches to the switch node.
Input to the regulator. Operates from 4.5V to 42V.
Provides the gate voltage for the high side NFET.
Provide good capacitive decoupling between VIN and this pin.
A resistor connected from this pin to GND adjusts the oscillator frequency. This
pin can also accept an input for synchronization from an external clock. Pin can
be left floating and internal setting will be default to 500 kHz.
Inverting input to the internal voltage error amplifier.
When pulled low regulator turns off.
NSC Package
2
Drawing
TJ7A
TJ7A
1000 Units in Tape and Reel
1000 Units in Tape and Reel
1000 Units in Tape and Reel
1000 Units in Tape and Reel
250 Units in Tape and Reel
250 Units in Tape and Reel
250 Units in Tape and Reel
250 Units in Tape and Reel
30074102
Supplied As
Production Flow*
Automotive
AEC-Q100
Features
qualified.
Grade 1
Grade