LM2674LDX-3.3 National Semiconductor, LM2674LDX-3.3 Datasheet - Page 3

• Manufacturer Part Number: LM2674LDX-3.3
• Manufacturer: National Semiconductor

Specifications of LM2674LDX-3.3

• Dc To Dc Converter Type: Step Down
• Number Of Outputs: 1
• Pin Count: 16
• Input Voltage: 40V
• Output Voltage: 3.3V
• Switching Freq: 275KHz
• Output Current: 500mA
• Efficiency: 86%
• Package Type: LLP EP
• Output Type: Fixed
• Switching Regulator: Yes
• Mounting: Surface Mount
• Input Voltage (min): 8V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Lead Free Status / Rohs Status: Not Compliant

Symbol
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
V
η
Symbol
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
V
η
Symbol
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
η
Symbol
SYSTEM PARAMETERS Test Circuit Figure 3 (Note 3)
V
V
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Operating Ratings
Electrical Characteristics
LM2674-3.3
Operating Temperature Range.
OUT
OUT
LM2674-5.0
OUT
OUT
LM2674-12
OUT
LM2674-ADJ
FB
FB
Supply Voltage
ON/OFF Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
Feedback Pin Voltage
ESD Susceptibility
Power Dissipation
Supply Voltage
Human Body Model (Note 2)
Output Voltage
Output Voltage
Efficiency
Output Voltage
Output Voltage
Efficiency
Output Voltage
Efficiency
Feedback
Voltage
Feedback
Voltage
Parameter
Parameter
Parameter
Parameter
Specifications with standard type face are for T
V
V
V
V
V
V
V
V
V
V
(see Circuit of Figure 3)
V
V
(see Circuit of Figure 3)
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
IN
OUT
= 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
Programmed for 5V
Programmed for 5V
−0.3V ≤ V
−0.1V ≤ V
LOAD
LOAD
LOAD
Internally Limited
= 500 mA
= 500 mA
= 500 mA
6.5V to 40V
Conditions
Conditions
Conditions
Conditions
(Note 1)
LOAD
LOAD
LOAD
LOAD
V
LOAD
LOAD
LOAD
FB
SW
SH
≤ 14V
= 20 mA to 500 mA
= 20 mA to 500 mA
= 20 mA to 500 mA
+ 8V
≤ 6V
= 20 mA to 500 mA
2 kV
−1V
= 20 mA to 250 mA
= 20 mA to 250 mA
= 20 mA to 250 mA
45V
3
Storage Temperature Range
Lead Temperature
M Package
N Package (Soldering, 10s)
LLP Package (See AN-1187)
Maximum Junction Temperature
Junction Temperature Range
J
Vapor Phase (60s)
Infrared (15s)
= 25˚C, and those with bold type face apply over full
(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
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 ≤ T
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
J
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≤ +125˚C
+215˚C
+220˚C
+260˚C
+150˚C
Units
Units
Units
Units
%
%
%
V
V
V
V
V
V
V