Datasheet

LM2674
SNVS007F –SEPTEMBER 1998–REVISED APRIL 2013 www.ti.com
LM2674-5.0
Symbol Parameter Conditions Typical
(1)
Min
(2)
Max
(2)
Units
SYSTEM PARAMETERSTest Circuit Figure 22
(3)
V
OUT
Output Voltage V
IN
= 8V to 40V, I
LOAD
= 20 mA to 500 mA 5.0 4.925/4.850 5.075/5.150 V
V
OUT
Output Voltage V
IN
= 6.5V to 40V, I
LOAD
= 20 mA to 250 mA 5.0 4.925/4.850 5.075/5.150 V
η Efficiency V
IN
= 12V, I
LOAD
= 500 mA 90 %
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) 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).
(3) 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 Figure 22 andFigure 23 test circuits, system performance will
be as specified by the system parameters section of the Electrical Characteristics.
LM2674-12
Symbol Parameter Conditions Typical
(1)
Min
(2)
Max
(2)
Units
SYSTEM PARAMETERSTest Circuit Figure 22
(3)
V
OUT
Output Voltage V
IN
= 15V to 40V, I
LOAD
= 20 mA to 500 mA 12 11.82/11.64 12.18/12.36 V
η Efficiency V
IN
= 24V, I
LOAD
= 500 mA 94 %
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) 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).
(3) 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 Figure 22 andFigure 23 test circuits, system performance will
be as specified by the system parameters section of the Electrical Characteristics.
LM2674-ADJ
Symbol Parameter Conditions Typ
(1)
Min
(2)
Max
(2)
Units
SYSTEM PARAMETERS Test Circuit Figure 23
(3)
V
FB
Feedback Voltage V
IN
= 8V to 40V, I
LOAD
= 20 mA to 500 mA
V
OUT
Programmed for 5V 1.210 1.192/1.174 1.228/1.246 V
(see Circuit of Figure 23)
V
FB
Feedback Voltage V
IN
= 6.5V to 40V, I
LOAD
= 20 mA to 250 mA
V
OUT
Programmed for 5V 1.210 1.192/1.174 1.228/1.246 V
(see Circuit of Figure 23)
η Efficiency V
IN
= 12V, I
LOAD
= 500 mA 90 %
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) 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).
(3) 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 Figure 22 andFigure 23 test circuits, system performance will
be as specified by the system parameters section of the Electrical Characteristics.
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