LM2676EP Datasheet, PDF (4/28 Pages) Texas Instruments – LM2676EP Enhanced Plastic SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

Absolute Maximum Ratings (Note 4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Supply Voltage
ON/OFF Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
Feedback Pin Voltage
Power Dissipation
45V
−0.1V to 6V
−1V to V_IN
V_SW + 8V
−0.3V to 14V
Internally Limited
ESD (Note 5)
Storage Temperature Range
Soldering Temperature
Wave
Infrared
Vapor Phase
Operating Ratings
Supply Voltage
Junction Temperature Range (T_J)
2 kV
−65°C to 150°C
4 sec, 260°C
10 sec, 240°C
75 sec, 219°C
8V to 40V
−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 T_A = T_J = 25°C.
LM2676-3.3EP
Symbol Parameter
Conditions
V_OUT
η
Output Voltage
Efficiency
V_IN = 8V to 40V, 100mA ≤ I_OUT ≤ 3A
V_IN = 12V, I_LOAD = 3A
Typical
(Note 6)
3.3
86
Min
(Note 7)
3.234/3.201
Max
(Note 7)
3.366/3.399
Units
V
%
LM2676-5.0EP
Symbol Parameter
Conditions
V_OUT
η
Output Voltage
Efficiency
V_IN = 8V to 40V, 100mA ≤ I_OUT ≤ 3A
V_IN = 12V, I_LOAD = 3A
Typical
(Note 6)
5.0
88
Min
(Note 7)
4.900/4.850
Max
(Note 7)
5.100/5.150
Units
V
%
LM2676-12EP
Symbol Parameter
Conditions
V_OUT
η
Output Voltage
Efficiency
V_IN = 15V to 40V, 100mA ≤ I_OUT ≤ 3A
V_IN = 24V, I_LOAD = 3A
Typical
(Note 6)
12
94
Min
(Note 7)
11.76/11.64
Max
(Note 7)
12.24/12.36
Units
V
%
LM2676-ADJEP
Symbol Parameter
Conditions
V_FB
Feedback Voltage _{VIN = 8V to 40V, 100mA ≤ IOUT ≤ 3A}
V_OUT Programmed for 5V
η
Efficiency
V_IN = 12V, I_LOAD = 3A
Typ
(Note 6)
Min
(Note 7)
Max
(Note 7)
Units
1.21 1.186/1.174 1.234/1.246 V
88
%
3
200996 Version 2 Revision 3 Print Date/Time: 2011/03/24 16:39:24
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