SNVS007F – SEPTEMBER 1998 – REVISED APRIL 2013
Absolute Maximum Ratings
(1) (2)
Supply Voltage
ON/OFF Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
Feedback Pin Voltage
ESD Susceptibility
Power Dissipation
Storage Temperature Range
D Package
Lead Temperature
P Package (Soldering, 10s)
WSON Package
Maximum Junction Temperature
(1)
(2)
(3)
Vapor Phase (60s)
Infrared (15s)
Human Body Model
(3)
45V
−0.1V ≤
V
SH
≤
6V
−1V
V
SW
+ 8V
−0.3V ≤
V
FB
≤
14V
2 kV
Internally Limited
−65°C
to +150°C
+215°C
+220°C
+260°C
(See
+150°C
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but device parameter specifications may not be ensured under these conditions. For
ensured specifications and test conditions, see the Electrical Characteristics.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Operating Ratings
Supply Voltage
Junction Temperature Range
6.5V to 40V
−40°C ≤
T
J
≤
+125°C
Electrical Characteristics LM2674-3.3
Specifications with standard type face are for T
J
= 25°C, and those with
bold type face
apply over
full Operating
Temperature Range.
Symbol
V
OUT
V
OUT
η
(1)
(2)
(3)
Parameter
Output Voltage
Output Voltage
Efficiency
Conditions
V
IN
= 8V to 40V, I
LOAD
= 20 mA to 500 mA
V
IN
= 6.5V to 40V, I
LOAD
= 20 mA to 250 mA
V
IN
= 12V, I
LOAD
= 500 mA
Typical
(1)
3.3
3.3
86
Min
(2)
3.251/3.201
3.251/3.201
Max
(2)
3.350/3.399
3.350/3.399
Units
V
V
%
SYSTEM PARAMETERS
Test Circuit
(3)
Typical numbers are at 25°C and represent the most likely norm.
All limits ensured at room temperature (standard type face) and at
temperature extremes (bold type face).
All room temperature limits
are 100% production tested. All limits at
temperature extremes
are ensured via correlation using standard Statistical Quality Control
(SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect
switching regulator performance. When the LM2674 is used as shown in
andFigure
test circuits, system performance will
be as specified by the system parameters section of the Electrical Characteristics.
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