LM2675N-12/NOPB National Semiconductor, LM2675N-12/NOPB Datasheet - Page 8
![IC REG SIMPLE SWITCHER 8-DIP](/photos/7/62/76255/lm2675n-12_nopb_sml.jpg)
LM2675N-12/NOPB
Manufacturer Part Number
LM2675N-12/NOPB
Description
IC REG SIMPLE SWITCHER 8-DIP
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Datasheet
1.LM2675LD-5.0.pdf
(26 pages)
Specifications of LM2675N-12/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
12V
Current - Output
1A
Frequency - Switching
260kHz
Voltage - Input
6.5 ~ 40 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
For Use With
LM2675-5.0EVAL - EVALUATION BOARD FOR LM2675-5.0
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
*LM2675N-12
*LM2675N-12/NOPB
LM2675N-12
*LM2675N-12/NOPB
LM2675N-12
www.national.com
Typical Performance Characteristics
A: V
B: Inductor Current, 0.5 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 1A Load Pulse
SW
Load Transient Response for Continuous Mode
Pin Voltage, 10 V/div.
L = 47 µH, C
L = 47 µH, C
Continuous Mode Switching Waveforms
V
V
Horizontal Time Base: 50 µs/div
Horizontal Time Base: 1 µs/div
IN
IN
= 20V, V
= 20V, V
OUT
OUT
= 68 µF, C
= 68 µF, C
OUT
OUT
= 5V, I
= 5V, I
OUT
OUT
LOAD
LOAD
ESR = 50 mΩ
ESR = 50 mΩ
= 1A
= 1A
01280318
01280320
8
(Circuit of Figure 2)
A: V
B: Inductor Current, 0.5 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 100 mA to 400 mA Load Pulse
SW
Load Transient Response for Discontinuous Mode
L = 15 µH, C
Pin Voltage, 10 V/div.
L = 47 µH, C
Discontinuous Mode Switching Waveforms
V
IN
Horizontal Time Base: 200 µs/div
Horizontal Time Base: 1 µs/div
= 20V, V
OUT
V
OUT
IN
= 68 µF (2x), C
= 20V, V
OUT
= 68 µF, C
= 5V, I
OUT
LOAD
OUT
= 5V,
OUT
ESR = 50 mΩ
= 300 mA
ESR = 25 mΩ
01280319
01280321