Electronic Components Datasheet Search
Selected language     English  ▼


LM2599 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM2599
Description  SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features
Download  31 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo 

 
 4 page
background image
All Output Voltage Versions
Electrical Characteristics (Continued)
Specifications with standard type face are for T
J = 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range. Unless otherwise specified, V
IN = 12V for the 3.3V, 5V, and Adjustable version and VIN = 24V for the 12V ver-
sion. I
LOAD = 500 mA
Symbol
Parameter
Conditions
LM2599-XX
Units
(Limits)
Typ
Limit
(Note
4)
(Note 5)
DEVICE PARAMETERS
I
STBY
Standby Quiescent
SD /SS pin = 0V
(Note 11)
80
µA
Current
200/250
µA(max)
θ
JC
Thermal Resistance
TO220 or TO263 Package, Junction to Case
2
˚C/W
θ
JA
TO220 Package, Juncton to Ambient (Note 12)
50
˚C/W
θ
JA
TO263 Package, Juncton to Ambient (Note 13)
50
˚C/W
θ
JA
TO263 Package, Juncton to Ambient (Note 14)
30
˚C/W
θ
JA
TO263 Package, Juncton to Ambient (Note 15)
20
˚C/W
SHUTDOWN/SOFT-START CONTROL Test Circuit of
Figure 1
V
SD
Shutdown Threshold
1.3
V
Voltage
Low, (Shutdown Mode)
0.6
V(max)
High, (Soft-start Mode)
2
V(min)
V
SS
Soft-start Voltage
V
OUT = 20% of Nominal Output Voltage
2
V
V
OUT = 100% of Nominal Output Voltage
3
I
SD
Shutdown Current
V
SHUTDOWN = 0.5V
5µA
10
µA(max)
I
SS
Soft-start Current
V
Soft-start = 2.5V
1.6
µA
5
µA(max)
FLAG/DELAY CONTROL Test Circuit of
Figure 1
Regulator Dropout Detector
Low (Flag ON)
96
%
Threshold Voltage
92
%(min)
98
%(max)
VF
SAT
Flag Output Saturation
I
SINK = 3 mA
0.3
V
Voltage
V
DELAY = 0.5V
0.7/1.0
V(max)
IF
L
Flag Output Leakage Current
V
FLAG = 40V
0.3
µA
Delay Pin Threshold
1.25
V
Voltage
Low (Flag ON)
1.21
V(min)
High (Flag OFF) and V
OUT Regulated
1.29
V(max)
Delay Pin Source Current
V
DELAY = 0.5V
3
µA
6
µA(max)
Delay Pin Saturation
Low (Flag ON)
55
mV
350/400
mV(max)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: Voltage internally clamped. If clamp voltage is exceeded, limit current to a maximum of 1 mA.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5k resistor into each pin.
Note 4: Typical numbers are at 25˚C and represent the most likely norm.
Note 5: All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% pro-
duction tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to cal-
culate Average Outgoing Quality Level (AOQL).
Note 6: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2599
is used as shown in the
Figure 1 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics.
Note 7: The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the severity of current over-
load.
Note 8: No diode, inductor or capacitor connected to output pin.
Note 9: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
www.national.com
4




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31 


Datasheet Download



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
LM2590HVSIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator with Features 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2593HVSIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage Regulator with Features 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2597SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator with Features 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2598SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator with Features 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2591HVSIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2592HVSIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage Regulator 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2594SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2671SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2595SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator 1 2 3 4 5 MoreNational Semiconductor (TI)
LM2672SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features 1 2 3 4 5 MoreNational Semiconductor (TI)

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com 2003 - 2017    


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl