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LM2599T-5.0 データシート(PDF) 6 Page - Texas Instruments

部品番号 LM2599T-5.0
部品情報  LM2599 SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

LM2599T-5.0 データシート(HTML) 6 Page - Texas Instruments

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LM2599
SNVS123C – APRIL 1998 – REVISED APRIL 2013
www.ti.com
All Output Voltage Versions Electrical Characteristics (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 and VIN = 24V for the
12V version. ILOAD = 500 mA
Symbol
Parameter
Conditions
LM2599-XX
Units
(Limits)
Typ
Limit
(1)
(2)
ISTBY
Standby Quiescent
SD /SS pin = 0V (7)
80
μA
Current
200/250
μA(max)
θJC
Thermal Resistance
TO220 or TO263 Package, Junction to Case
2
°C/W
θJA
TO220 Package, Juncton to Ambient (8)
50
°C/W
θJA
TO263 Package, Juncton to Ambient (9)
50
°C/W
θJA
TO263 Package, Juncton to Ambient (10)
30
°C/W
θJA
TO263 Package, Juncton to Ambient (11)
20
°C/W
SHUTDOWN/SOFT-START CONTROL Test Circuit of Figure 24
VSD
Shutdown Threshold
1.3
V
Voltage
Low, (Shutdown Mode)
0.6
V(max)
High, (Soft-start Mode)
2
V(min)
VSS
Soft-start Voltage
VOUT = 20% of Nominal Output Voltage
2
V
VOUT = 100% of Nominal Output Voltage
3
ISD
Shutdown Current
VSHUTDOWN = 0.5V
5
μA
10
μA(max)
ISS
Soft-start Current
VSoft-start = 2.5V
1.6
μA
5
μA(max)
FLAG/DELAY CONTROL Test Circuit of Figure 24
Regulator Dropout Detector
Low (Flag ON)
96
%
Threshold Voltage
92
%(min)
98
%(max)
VFSAT
Flag Output Saturation
ISINK = 3 mA
0.3
V
Voltage
VDELAY = 0.5V
0.7/1.0
V(max)
IFL
Flag Output Leakage Current
VFLAG = 40V
0.3
μA
Delay Pin Threshold
1.25
V
Voltage
Low (Flag ON)
1.21
V(min)
High (Flag OFF) and VOUT Regulated
1.29
V(max)
Delay Pin Source Current
VDELAY = 0.5V
3
μA
6
μA(max)
Delay Pin Saturation
Low (Flag ON)
55
mV
350/400
mV(max)
(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 LM2599S 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 version 4.2.1 (or later) software.
6
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Product Folder Links: LM2599


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