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LM2597M-12 数据表(PDF) 4 Page - Texas Instruments

部件名 LM2597M-12
功能描述  LM2597/LM2597HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM2597M-12 数据表(HTML) 4 Page - Texas Instruments

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LM2597, LM2597HV
SNVS119C – MARCH 1998 – REVISED APRIL 2013
www.ti.com
LM2597/LM2597HV-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.VINmax=40V for the LM2597 and 60V for the LM2597HV
Symbol
Parameter
Conditions
LM2597/LM2597HV-3.3
Units
(Limits)
Typ (1)
Limit (2)
SYSTEM PARAMETERS Test Circuit Figure 31(3)(4)
VOUT
Output Voltage
4.75V
≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A
3.3
V
3.168/3.135
V(min)
3.432/3.465
V(max)
η
Efficiency
VIN = 12V, ILOAD = 0.5A
80
%
(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 can affect switching regulator system performance.
When the LM2597/LM2597HV is used as shown in the Figure 31 test circuit, system performance will be as shown in system
parameters section of Electrical Characteristics.
(4)
No diode, inductor or capacitor connected to output pin.
LM2597/LM2597HV-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.VINmax=40V for the LM2597 and 60V for the LM2597HV
Symbol
Parameter
Conditions
LM2597/LM2597HV-5.0
Units
(Limits)
Typ (1)
Limit (2)
SYSTEM PARAMETERS Test Circuit Figure 31(3)(4)
VOUT
Output Voltage
7V
≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A
5
V
4.800/4.750
V(min)
5.200/5.250
V(max)
η
Efficiency
VIN = 12V, ILOAD = 0.5A
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 can affect switching regulator system performance.
When the LM2597/LM2597HV is used as shown in the Figure 31 test circuit, system performance will be as shown in system
parameters section of Electrical Characteristics.
(4)
No diode, inductor or capacitor connected to output pin.
4
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Product Folder Links: LM2597 LM2597HV


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