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LM2678S-ADJ Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza LM2678S-ADJ
Descripción Electrónicos  LM2678 SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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LM2678
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SNVS029I – MARCH 2000 – REVISED APRIL 2013
Operating Ratings
Supply Voltage
8V to 40V
Junction Temperature Range (TJ)
−40°C to 125°C
Electrical Characteristics
LM2678-3.3
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.
Parameter
Test Conditions
Typ(1)
Min(2)
Max(2)
Units
VOUT
Output Voltage
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A
3.3
3.234/3.201
3.366/3.399
V
η
Efficiency
VIN = 12V, ILOAD = 5A
82
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using
standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
LM2678-5.0
Parameter
Test Conditions
Typ(1)
Min(2)
Max(2)
Units
VOUT
Output Voltage
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A
5.0
4.900/4.850
5.100/5.150
V
η
Efficiency
VIN = 12V, ILOAD = 5A
84
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using
standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
LM2678-12
Parameter
Test Conditions
Typ(1)
Min(2)
Max(2)
Units
VOUT
Output Voltage
VIN = 15V to 40V, 100mA ≤ IOUT ≤ 5A
12
11.76/11.64
12.24/12.36
V
η
Efficiency
VIN = 24V, ILOAD = 5A
92
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using
standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
LM2678-ADJ
Parameter
Test Conditions
Typ(1)
Min(2)
Max(2)
Units
VFB
Feedback Voltage
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A
1.21
1.186/1.174
1.234/1.246
V
VOUT Programmed for 5V
η
Efficiency
VIN = 12V, ILOAD = 5A
84
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using
standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Copyright © 2000–2013, Texas Instruments Incorporated
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