LM2676T-3.3 National Semiconductor, LM2676T-3.3 Datasheet - Page 8
![IC, STEP-DOWN REGULATOR, TO-220-7](/photos/18/98/189827/4243394_sml.jpg)
LM2676T-3.3
Manufacturer Part Number
LM2676T-3.3
Description
IC, STEP-DOWN REGULATOR, TO-220-7
Manufacturer
National Semiconductor
Datasheet
1.LM2676S-5.0.pdf
(26 pages)
Specifications of LM2676T-3.3
Primary Input Voltage
12V
No. Of Outputs
1
Output Voltage
3.3V
Output Current
3A
No. Of Pins
7
Operating Temperature Range
-40°C To +125°C
Supply Voltage Range
8V To 40V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2676T-3.3
Manufacturer:
NS
Quantity:
500
www.national.com
Typical Performance Characteristics
A: V
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500 mA to 3A Load Pulse
SW
Pin Voltage, 10 V/div.
Load Transient Response for Continuous Mode
L = 33 μH, C
L = 33 μH, C
Continuous Mode Switching Waveforms
Horizontal Time Base: 100 μs/div
V
Horizontal Time Base: 1 μs/div
IN
= 20V, V
V
OUT
OUT
IN
= 20V, V
= 200 μF, C
= 200 μF, C
OUT
= 5V, I
OUT
OUT
OUT
= 5V
LOAD
ESR = 26 mΩ
ESR = 26 mΩ
= 3A
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8
A: V
B: Inductor Current, 1 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 3A Load Pulse
SW
Load Transient Response for Discontinuous Mode
Pin Voltage, 10 V/div.
Discontinuous Mode Switching Waveforms
L = 10 μH, C
L = 10 μH, C
V
IN
Horizontal Time Base: 200 μs/div
Horizontal Time Base: 1 μs//iv
= 20V, V
V
OUT
OUT
IN
= 20V, V
OUT
= 400 μF, C
= 400 μF, C
= 5V, I
OUT
LOAD
= 5V,
OUT
OUT
ESR = 13 mΩ
ESR = 13 mΩ
= 500 mA
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