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LM2594MX-ADJ 데이터시트(PDF) 4 Page - Texas Instruments

부품명 LM2594MX-ADJ
상세설명  LM2594/LM2594HV SIMPLE SWITCHER짰 Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
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LM2594, LM2594HV
SNVS118C – DECEMBER 1999 – REVISED APRIL 2013
www.ti.com
LM2594/LM2594HV-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
Symbol
Parameter
Conditions
LM2594/LM2594HV-5.0
Units
(Limits)
Typ(1)
Limit(2)
SYSTEM PARAMETERS(3) Test Circuit Figure 20
VOUT
Output Voltage
7V
≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A
5.0
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 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 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 LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system
performance will be as shown in system parameters section of Electrical Characteristics.
LM2594/LM2594HV-12 Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range
Symbol
Parameter
Conditions
LM2594/LM2594HV-12
Units
(Limits)
Typ(1)
Limit(2)
SYSTEM PARAMETERS(3) Test Circuit Figure 20
VOUT
Output Voltage
15V
≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A
12.0
V
11.52/11.40
V(min)
12.48/12.60
V(max)
η
Efficiency
VIN = 25V, ILOAD = 0.5A
88
%
(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 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 LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system
performance will be as shown in system parameters section of Electrical Characteristics.
LM2594/LM2594HV-ADJ Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range
Symbol
Parameter
Conditions
LM2594/LM2594HV-ADJ
Units
(Limits)
Typ(1)
Limit(2)
SYSTEM PARAMETERS(3) Test Circuit Figure 20
VFB
Feedback Voltage
4.5V
≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A
1.230
V
1.193/1.180
VOUT programmed for 3V. Circuit of Figure 20
V(min)
1.267/1.280
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 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 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 LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system
performance will be as shown in system parameters section of Electrical Characteristics.
4
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