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LM2591HVS-3.3 データシート(PDF) 4 Page - Texas Instruments

部品番号 LM2591HVS-3.3
部品情報  LM2591HV SIMPLE SWITCHER Power onverter 150 kHz 1A Step-Down Voltage
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM2591HVS-3.3 データシート(HTML) 4 Page - Texas Instruments

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LM2591HV
SNVS074D – MAY 2001 – REVISED APRIL 2013
www.ti.com
ELECTRICAL CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS (continued)
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range. Unless otherwise specified, VIN = 12V for the 3.3V, 5V, and Adjustable version. ILOAD = 500 mA
Symbol
Parameter
Conditions
LM2591HV-XX
Units
(Limits)
Typ (1)
Limit (2)
DC
Max Duty Cycle (ON)
See (5)(6)
100
%
Min Duty Cycle (OFF)
0
ICLIM
Switch current Limit
Peak Current, (4)(5)
1.9
A
1.3/1.2
A(min)
2.8/3.0
A(max)
IL
Output Leakage Current
Output = 0V
50
μA(max)
Output =
−1V (4)(6)(7)
5
mA
30
mA(max)
IQ
Operating Quiescent
SD /SS Pin Open (6)
5
mA
Current
10
mA(max)
ISTBY
Standby Quiescent
SD /SS pin = 0V (7)
90
μA
Current
200/250
μA(max)
θJC
Thermal Resistance
TO220 or TO263 Package, Junction to Case
2
°C/W
θJA
TO220 Package, Junction to Ambient (8)
50
°C/W
θJA
TO263 Package, Junction to Ambient (9)
50
°C/W
θJA
TO263 Package, Junction to Ambient (10)
30
°C/W
θJA
TO263 Package, Junction to Ambient (11)
20
°C/W
ON/OFF CONTROL Test Circuit Test Circuit and Layout Guidelines
ON /OFF Pin Logic Input
1.3
V
VIH
Threshold Voltage
Low (Regulator ON)
0.6
V(max)
VIL
High (Regulator OFF)
2.0
V(min)
IH
ON /OFF Pin Input Current
VLOGIC = 2.5V (Regulator OFF)
5
μA
15
μA(max)
IL
VLOGIC = 0.5V (Regulator ON)
0.02
μA
5
μA(max)
(6)
Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version to force the output transistor switch
OFF.
(7)
VIN = 60V.
(8)
Junction to ambient thermal resistance (no external heat sink) for the package mounted TO-220 package mounted vertically, with the
leads soldered to a printed circuit board with (1 oz.) copper area of approximately 1 in2.
(9)
Junction to ambient thermal resistance with the TO-263 package tab soldered to a single sided printed circuit board with 0.5 in2 of (1
oz.) copper area.
(10) Junction to ambient thermal resistance with the TO-263 package tab soldered to a single sided printed circuit board with 2.5 in2 of (1
oz.) copper area.
(11) Junction to ambient thermal resistance with the TO-263 package tab soldered to a double sided printed circuit board with 3 in2 of (1 oz.)
copper area on the LM2591HVS side of the board, and approximately 16 in2 of copper on the other side of the p-c board. See
APPLICATION INFORMATION in this data sheet and the thermal model in Switchers Made Simple available at
http://www.ti.com/lsds/ti/analog/powermanagement/power_portal.page.
4
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