Datasheet

LM2595
www.ti.com SNVS122B –MAY 1999–REVISED APRIL 2013
LM2595-3.3 Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with boldface type apply over full Operating
Temperature Range.
Symbol Parameter Conditions LM2595-3.3 Units
(Limits)
Typ Limit
(1) (2)
SYSTEM PARAMETERS
(3)
Test Circuit Figure 21
V
OUT
Output Voltage 4.75V ≤ V
IN
≤ 40V, 0.1A ≤ I
LOAD
≤ 1A 3.3 V
3.168/3.135 V(min)
3.432/3.465 V(max)
η Efficiency V
IN
= 12V, I
LOAD
= 1A 78 %
(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 specified 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 LM2595 is used as shown in the Figure 21 test circuit, system performance will be
as shown in system parameters of Electrical Characteristics section.
LM2595-5.0 Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with boldface type apply over full Operating
Temperature Range.
Symbol Parameter Conditions LM2595-5.0 Units
(Limits)
Typ Limit
(1) (2)
SYSTEM PARAMETERS
(3)
Test Circuit Figure 21
V
OUT
Output Voltage 7V ≤ V
IN
≤ 40V, 0.1A ≤ I
LOAD
≤ 1A 5.0 V
4.800/4.750 V(min)
5.200/5.250 V(max)
η Efficiency V
IN
= 12V, I
LOAD
= 1A 82 %
(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 specified 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 LM2595 is used as shown in the Figure 21 test circuit, system performance will be
as shown in system parameters of Electrical Characteristics section.
LM2595-12 Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with boldface type apply over full Operating
Temperature Range.
Symbol Parameter Conditions LM2595-12 Units
(Limits)
Typ Limit
(1) (2)
SYSTEM PARAMETERS
(3)
Test Circuit Figure 21
V
OUT
Output Voltage 15V ≤ V
IN
≤ 40V, 0.1A ≤ I
LOAD
≤ 1A 12.0 V
11.52/11.40 V(min)
12.48/12.60 V(max)
(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 specified 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 LM2595 is used as shown in the Figure 21 test circuit, system performance will be
as shown in system parameters of Electrical Characteristics section.
Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Links: LM2595