LM2672N-3.3 National Semiconductor, LM2672N-3.3 Datasheet - Page 3

• Manufacturer Part Number: LM2672N-3.3
• Description: IC, STEP-DOWN REGULATOR, 8-DIP
• Manufacturer: National Semiconductor

Specifications of LM2672N-3.3

• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 3.3V
• Output Current: 1A
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 6.5V To 40V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
V
η
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
V
η
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
η
SYSTEM PARAMETERS Test Circuit Figure 3 (Note 3)
V
V
η
Symbol
Symbol
Symbol
Symbol
OUT
OUT
OUT
OUT
OUT
FB
FB
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
LM2672-3.3
Operating Temperature Range.
LM2672-5.0
LM2672-12
LM2672-ADJ
Supply Voltage
ON/OFF Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
Feedback Pin Voltage
ESD Susceptibility
Power Dissipation
Human Body Model (Note 2)
Output Voltage
Output Voltage
Efficiency
Output Voltage
Output Voltage
Efficiency
Output Voltage
Efficiency
Feedback Voltage V
Feedback Voltage V
Efficiency
Parameter
Parameter
Parameter
Parameter
Specifications with standard type face are for T
V
V
V
V
V
V
V
V
V
(see Circuit of Figure 3)
V
(see Circuit of Figure 3)
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
IN
OUT
IN
= 8V to 40V, I
= 6.5V to 40V, I
= 12V, I
= 8V to 40V, I
= 6.5V to 40V, I
= 12V, I
= 15V to 40V, I
= 24V, I
= 8V to 40V, I
= 6.5V to 40V, I
= 12V, I
Programmed for 5V
Programmed for 5V
LOAD
LOAD
LOAD
LOAD
−0.3V
−0.1V
Internally Limited
= 1A
= 1A
= 1A
= 1A
LOAD
LOAD
LOAD
≤
LOAD
(Note 1)
LOAD
LOAD
LOAD
≤
Conditions
Conditions
Conditions
Conditions
V
V
V
FB
= 20 mA to 1A
= 20 mA to 1A
= 20 mA to 1A
SH
SW
= 20 mA to 1A
= 20 mA to 500 mA
= 20 mA to 500 mA
= 20 mA to 500 mA
≤
≤
+ 8V
2 kV
45V
−1V
14V
6V
3
Operating Ratings
J
Storage Temperature Range
Lead Temperature
M Package
N Package (Soldering, 10s)
LLP Package (see AN-1187)
Maximum Junction Temperature
Supply Voltage
Temperature Range
= 25°C, and those in bold type face apply over full
Vapor Phase (60s)
Infrared (15s)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
Typical
Typical
Typical
1.210
1.210
Typ
3.3
3.3
5.0
5.0
86
90
12
94
90
3.251/3.201
3.251/3.201
4.925/4.850
4.925/4.850
11.82/11.64
1.192/1.174
1.192/1.174
(Note 5)
(Note 5)
(Note 5)
(Note 5)
Min
Min
Min
Min
−40°C
3.350/3.399
3.350/3.399
5.075/5.150
5.075/5.150
12.18/12.36
1.228/1.246
1.228/1.246
−65°C to +150°C
(Note 5)
(Note 5)
(Note 5)
(Note 5)
≤
Max
Max
Max
Max
T
6.5V to 40V
J
www.national.com
≤
+215°C
+220°C
+260°C
+150°C
+125°C
Units
Units
Units
Units
%
%
%
%
V
V
V
V
V
V
V