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LM2597HVM-5.0 Scheda tecnica(PDF) 7 Page - Texas Instruments

Il numero della parte LM2597HVM-5.0
Spiegazioni elettronici  LM2597/LM2597HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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LM2597HVM-5.0 Scheda tecnica(HTML) 7 Page - Texas Instruments

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LM2597, LM2597HV
www.ti.com
SNVS119C – MARCH 1998 – REVISED APRIL 2013
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 = 100 mA.
Symbol
Parameter
Conditions
LM2597/LM2597HV-XX
Units
(Limits)
Typ (1)
Limit (2)
FLAG/DELAY CONTROL Test Circuit of Figure 31
Regulator Dropout
Low (Flag ON)
96
%
Detector
92
%(min)
Threshold Voltage
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
VFLAG = 40V
0.3
μA
Current
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
VDELAY = 0.5V
3
μA
Current
6
μA(max)
Delay Pin Saturation
Low (Flag ON)
55
mV
350/400
mV(max)
BIAS SUPPLY
IBS
Bias Supply Pin Current
VBS = 2V
(9)
120
μA
400
μA(max)
VBS = 4.4V
(9)
4
mA
10
mA(max)
IQ
Operating Quiescent Current
VBS = 4.4V , Vin pin current
(9)
1
2
mA
(9)
Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version, and 15V for the 12V version, to force
the output transistor switch OFF.
Copyright © 1998–2013, Texas Instruments Incorporated
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