Absolute Maximum Ratings (Note 1)
Storage Temperature Range
Soldering Temperature
Wave
−65˚C to 150˚C
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
4 sec, 260˚C
10 sec, 240˚C
75 sec, 219˚C
Infrared
Input Supply Voltage
ON/OFF Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
45V
−0.1V to 6V
−1V to VIN
Vapor Phase
Operating Ratings
VSW + 8V
Supply Voltage
8V to 40V
Feedback Pin Voltage
Power Dissipation
ESD (Note 2)
−0.3V to 14V
Internally Limited
2 kV
Junction Temperature Range (TJ)
−40˚C to 125˚C
Electrical Characteristics Limits appearing in bold type face apply over the entire junction temperature
range of operation, −40˚C to 125˚C. Specifications appearing in normal type apply for TA = TJ = 25˚C.
LM2676-3.3
Symbol
Parameter
Conditions
Typical
(Note 3)
3.3
Min
Max
Units
(Note 4)
(Note 4)
VOUT
Output Voltage
Efficiency
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 3A
3.234/3.201
3.366/3.399
V
η
VIN = 12V, ILOAD = 3A
86
%
LM2676-5.0
Symbol
Parameter
Conditions
Typical
(Note 3)
5.0
Min
Max
Units
(Note 4)
(Note 4)
VOUT
Output Voltage
Efficiency
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 3A
4.900/4.850
5.100/5.150
V
η
VIN = 12V, ILOAD = 3A
88
%
LM2676-12
Symbol
Parameter
Conditions
Typical
(Note 3)
12
Min
Max
Units
(Note 4)
(Note 4)
VOUT
Output Voltage
Efficiency
VIN = 15V to 40V, 100mA ≤ IOUT ≤ 3A
11.76/11.64
12.24/12.36
V
η
VIN = 24V, ILOAD = 3A
94
%
LM2676-ADJ
Symbol
Parameter
Conditions
Typ
Min
Max
Units
(Note 3)
(Note 4)
(Note 4)
VFB
Feedback
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 3A
VOUT Programmed for 5V
1.21
88
1.186/1.174
1.234/1.246
V
Voltage
η
Efficiency
VIN = 12V, ILOAD = 3A
%
3
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