LM2596
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SNVS124C –NOVEMBER 1999–REVISED APRIL 2013
LM2596-3.3 Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range
LM2596-3.3
Units
(Limits)
Symbol
Parameter
Conditions
Typ
Limit
(1)
(2)
SYSTEM PARAMETERS (3) Test Circuit Figure 20
VOUT
Output Voltage
4.75V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
3.3
73
V
3.168/3.135
3.432/3.465
V(min)
V(max)
%
η
Efficiency
VIN = 12V, ILOAD = 3A
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) All limits specified 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 system performance. When the LM2596 is used as shown in the Figure 20 test circuit, system performance will be
as shown in system parameters of Electrical Characteristics section.
LM2596-5.0 Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range
LM2596-5.0
Units
Symbol
Parameter
Conditions
Typ
Limit
(Limits)
(1)
(2)
SYSTEM PARAMETERS (3) Test Circuit Figure 20
VOUT
Output Voltage
7V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
5.0
80
V
4.800/4.750
5.200/5.250
V(min)
V(max)
%
η
Efficiency
VIN = 12V, ILOAD = 3A
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) All limits specified 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 system performance. When the LM2596 is used as shown in the Figure 20 test circuit, system performance will be
as shown in system parameters of Electrical Characteristics section.
LM2596-12 Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range
LM2596-12
Units
Symbol
Parameter
Conditions
Typ
Limit
(Limits)
(1)
(2)
SYSTEM PARAMETERS (3) Test Circuit Figure 20
VOUT
Output Voltage
15V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
12.0
90
V
11.52/11.40
12.48/12.60
V(min)
V(max)
%
η
Efficiency
VIN = 25V, ILOAD = 3A
(1) Typical numbers are at 25°C and represent the most likely norm.
(2) All limits specified 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 system performance. When the LM2596 is used as shown in the Figure 20 test circuit, system performance will be
as shown in system parameters of Electrical Characteristics section.
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