LM2672M-3.3 National Semiconductor, LM2672M-3.3 Datasheet - Page 9

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LM2672M-3.3

Manufacturer Part Number
LM2672M-3.3
Description
SWITCHING REG 1A 3.3V, 2672, SOIC8
Manufacturer
National Semiconductor
Datasheet

Specifications of LM2672M-3.3

Primary Input Voltage
12V
No. Of Outputs
1
Output Voltage
3.3V
Output Current
1A
Voltage Regulator Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +125°C
Svhc
No SVHC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Test Circuit and Layout Guidelines
C
C
D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F
L1 - 68 µH Sumida # RCR110D-680L
C
C
C
D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F
L1 - 68 µH Sumida # RCR110D-680L
R1 - 1.5 kΩ, 1%
C
For a 5V output, select R2 to be 4.75 kΩ, 1%
where V
Use a 1% resistor for best stability.
IN
OUT
B
IN
OUT
B
- 0.01 µF, 50V Ceramic
- 0.01 µF, 50V Ceramic
- 22 µF, 50V Tantalum, Sprague “199D Series”
- 22 µF, 50V Tantalum, Sprague “199D Series”
- 47 µF, 25V Tantalum, Sprague “595D Series”
- 47 µF, 25V Tantalum, Sprague “595D Series”
REF
= 1.21V
FIGURE 2. Standard Test Circuits and Layout Guides
FIGURE 3. Standard Test Circuits and Layout Guides
Adjustable Output Voltage Versions
Fixed Output Voltage Versions
9
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01293423
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