LM2936MPX50EP [NSC]
IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PDSO4, PLASTIC, SOT-223, 4 PIN, Fixed Positive Single Output LDO Regulator;
| 型号： | LM2936MPX50EP |
| 厂家： | 
National Semiconductor |
| 描述： | IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PDSO4, PLASTIC, SOT-223, 4 PIN, Fixed Positive Single Output LDO Regulator 光电二极管 输出元件 调节器 |
| 文件： | 总13页 (文件大小：457K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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information and details on our current products and services.
May 2004
LM2936-5.0EP
Enhanced Plastic Ultra-Low Quiescent Current 5V
Regulator
General Description
Features
n Ultra low quiescent current (IQ ≤ 15 µA for IO = 100 µA)
n Fixed 5V, 50 mA output
The LM2936EP ultra-low quiescent current regulator fea-
tures low dropout voltage and low current in the standby
mode. With less than 15 µA quiescent current at a 100 µA
load, the LM2936EP is ideally suited for automotive and
other battery operated systems. The LM2936EP retains all of
the features that are common to low dropout regulators
including a low dropout PNP pass device, short circuit pro-
tection, reverse battery protection, and thermal shutdown.
The LM2936EP has a 40V maximum operating voltage limit,
a −40˚C to +125˚C operating temperature range, and 3%
output voltage tolerance over the entire output current, input
voltage, and temperature range. The LM2936EP is available
in a TO-92 package, a SO-8 surface mount package, and a
TO-252 surface mount power package.
n
n
2% Initial output tolerance
3% Output tolerance over line, load, and temperature
@
n Dropout voltage typically 200 mV IO = 50 mA
n Reverse battery protection
n −50V reverse transient protection
n Internal short circuit current limit
n Internal thermal shutdown protection
n 40V operating voltage limit
n 60V operating voltage limit for LM2936HVEP
n Shutdown Pin available with LM2936BMEP package
ENHANCED PLASTIC
Applications
•
•
•
•
•
•
Extended Temperature Performance of −40˚C to +125˚C
Baseline Control - Single Fab & Assembly Site
Process Change Notification (PCN)
n Selected Military Applications
n Selected Avionics Applications
Qualification & Reliability Data
Solder (PbSn) Lead Finish is standard
Enhanced Diminishing Manufacturing Sources (DMS)
Support
Ordering Information
PART NUMBER
LM2936MX-5.0EP
(Notes 1, 2)
VID PART NUMBER
V62/4636-01
TBD
NS PACKAGE NUMBER (Note 3)
M08A
TBD
Note 1: For the following (Enhanced Plastic) versions, check for availability: LM2936BM-5.0EP, LM2936HVBMA50EP, LM2936HVMA50EP, LM2936M-
5.0EP, LM2936BMX50EP, LM2936HVBMAX5EP, LM2936HVMAX5EP, LM2936MP-5.0EP, LM2936MPX50EP, LM2936MM-5.0EP, LM2936MMX50EP,
LM2936DT-5.0EP, LM2936DTX50EP, LM2936Z-5.0EP. Parts listed with an "X" are provided in Tape & Reel and parts without an "X" are in Rails.
Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/
mil
Note 3: Refer to package details under Physical Dimensions
© 2004 National Semiconductor Corporation
DS200907
www.national.com
Typical Application
20090701
* Required if regulator is located more than 2" from power supply filter capacitor.
** Required for stability. Must be rated for 10 µF minimum over intended operating temperature range. Effective series resistance (ESR) is critical, see curve.
Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound.
Connection Diagrams
TO-252
SOT-223
20090725
20090726
Top View
Top View
See NS Package Number TD03B
See NS Package Number MA04A
8-Pin SO (M)
8-Pin SO (M)
20090706
Top View
See NS Package Number M08A
20090727
Top View
See NS Package Number M08A
TO-92
8-Pin Mini SOIC (MM)
20090702
Bottom View
See NS Package Number Z03A
20090728
Top View
See NS Package Number MUA08A
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2
Absolute Maximum Ratings (Note 4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Operating Input Voltage -
LM2936EP
+40V
Maximum Operating Input Voltage -
LM2936HVEP only
+60V
Input Voltage (Survival)
+60V, −50V
2000V
Maximum Shutdown Pin Voltage -
LM2936BMEP only
0V to 40V
ESD Susceptibility (Note 5)
Power Dissipation (Note 6)
Junction Temperature (TJmax
Storage Temperature Range
Internally limited
150˚C
TO-92 (Z03A) θJA
195˚C/W
200˚C/W
140˚C/W
45˚C/W
136˚C/W
6˚C/W
)
MSO-8 (MUA08A) θJA
SO-8 (M08A) θJA
−65˚C to +150˚C
Lead Temperature (Soldering, 10
sec.)
260˚C
SO-8 (M08A) θJC
TO-252 (TD03B) θJA
TO-252 (TD03B) θJC
SOT-223 (MA04A) θJA
SOT-223 (MA04A) θJC
149˚C/W
36˚C/W
Operating Ratings
Operating Temperature Range
−40˚C to +125˚C
Electrical Characteristics
VIN = 14V, IO = 10 mA, TJ = 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range
Min
(Note 8)
Typical
(Note 7)
Max
(Note 8)
Parameter
Conditions
Units
LM2936HVEP Only
Output Voltage
5.5V ≤ VIN ≤ 48V,
100 µA ≤ IO ≤ 50 mA (Note 9)
4.85
5.00
5.15
V
Line Regulation
6V ≤ VIN ≤ 60V, IO = 1mA
15
35
mV
All LM2936EP
4.90
5.00
5.10
Output Voltage
V
5.5V ≤ VIN ≤ 26V,
4.85
5.00
5.15
100 µA ≤ IO ≤ 50 mA (Note 9)
IO = 100 µA, 8V ≤ VIN ≤ 24V
IO = 10 mA, 8V ≤ VIN ≤ 24V
IO = 50 mA, 8V ≤ VIN ≤ 24V
9V ≤ VIN ≤ 16V
Quiescent Current
9
15
0.50
2.5
10
µA
mA
mA
mV
0.20
1.5
5
Line Regulation
Load Regulation
Dropout Voltage
6V ≤ VIN ≤ 40V, IO = 1 mA
100 µA ≤ IO ≤ 5 mA
5 mA ≤ IO ≤ 50 mA
IO = 100 µA
10
30
10
30
mV
10
30
0.05
0.20
120
450
0.10
0.40
250
V
V
IO = 50 mA
Short Circuit Current
Output Impedance
VO = 0V
65
mA
mΩ
IO = 30 mAdc and 10 mArms,
= 1000 Hz
f
Output Noise Voltage
Long Term Stability
10 Hz–100 kHz
500
20
µV
mV/1000
Hr
Ripple Rejection
Vripple = 1Vrms
,
= 120 Hz
−40
−50
−60
−80
dB
fripple
Reverse Polarity
RL = 500Ω, T = 1 ms
V
Transient Input Voltage
Output Voltage with
Reverse Polarity Input
Maximum Line Transient
VIN = −15V, RL = 500Ω
0.00
−0.30
V
V
RL = 500Ω, VO ≤ 5.5V, T = 40ms
60
3
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Electrical Characteristics (Continued)
VIN = 14V, IO = 10 mA, TJ = 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range
Min
(Note 8)
Typical
(Note 7)
Max
(Note 8)
Parameter
Conditions
Units
Output Bypass
Capacitance (COUT) ESR
Shutdown Input − LM2936BMEP Only
COUT = 10µF
0.3
8
Ω
0.1mA ≤ IOUT ≤ 50mA
Output Voltage, VOUT
Shutdown High
Output Off, VSD=2.4V, RLOAD = 500Ω
0
0.010
V
V
Output Off, RLOAD = 500Ω
2.00
1.1
Threshold Voltage, VIH
Shutdown Low
Output On, RLOAD = 500Ω
1.1
12
30
0.60
V
Threshold Voltage, VIL
Shutdown High
Output Off, VSD = 2.4V, RLOAD = 500Ω
µA
µA
Current, IIH
Quiescent Current
Output Off, VSD = 2.4V, RLOAD = 500Ω
Includes IIHCurrent
Note 4: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified operating ratings.
Note 5: Human body model, 100 pF discharge through a 1.5 kΩ resistor.
Note 6: The maximum power dissipation is a function of T
, θ , and T . The maximum allowable power dissipation at any ambient temperature is
JA A
Jmax
P
= (T
− T )/θ . If this dissipation is exceeded, the die temperature will rise above 150˚C and the LM2936EP will go into thermal shutdown.
D
Jmax A JA
Note 7: Typicals are at 25˚C (unless otherwise specified) and represent the most likely parametric norm.
Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: To ensure constant junction temperature, pulse testing is used.
Typical Performance Characteristics
Maximum Power
Dissipation (TO-92)
Dropout Voltage
20090707
20090708
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4
Typical Performance Characteristics (Continued)
Dropout Voltage
Quiescent Current
20090709
20090710
Quiescent Current
Quiescent Current
20090712
20090711
Quiescent Current
Quiescent Current
20090714
20090713
5
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Typical Performance Characteristics (Continued)
Output Capacitor ESR
Peak Output Current
20090715
20090716
Peak Output Current
Current Limit
20090717
20090718
Output at
Line Transient Response
Voltage Extremes
20090719
20090720
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6
Typical Performance Characteristics (Continued)
Ripple Rejection
Load Transient Response
20090721
20090722
Low Voltage Behavior
Output Impedance
20090723
20090724
7
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0.04 square inches of 2 oz. copper pad area to these four
pins will improve the θJA rating to approximately 110˚C/W. If
this extra pad are is placed directly beneath the package
there should not be any impact on board density.
Applications Information
Unlike other PNP low dropout regulators, the LM2936EP
remains fully operational to 40V. Owing to power dissipation
characteristics of the available packages, full output current
cannot be guaranteed for all combinations of ambient tem-
perature and input voltage. As an example, consider an
LM2936ZEP operating at 25˚C ambient. Using the formula
for maximum allowable power dissipation given in (Note 6) ,
we find that PDmax = 641 mW at 25˚C. Including the small
contribution of the quiescent current to total power dissipa-
tion the maximum input voltage (while still delivering 50 mA
output current) is 17.3V. The LM2936ZEP will go into thermal
shutdown if it attempts to deliver full output current with an
input voltage of more than 17.3V. Similarly, at 40V input and
25˚C ambient the LM2936ZEP can deliver 18 mA maximum.
On the TO-252 package the ground tab is thermally con-
nected to the backside of the die. Adding 1 square inch of 2
oz. copper pad area directly under the ground tab will im-
prove the θJA rating to approximately 50˚C/W.
While the LM2936EP has an internally set thermal shutdown
point of typically 150˚C, this is intended as a safety feature
only. Continuous operation near the thermal shutdown tem-
perature should be avoided as it may have a negative affect
on the life of the device.
While the LM2936EP maintains regulation to 60V, it will not
withstand a short circuit above 40V because of safe operat-
ing area limitations in the internal PNP pass device. Above
60V the LM2936EP will break down with catastrophic effects
on the regulator and possibly the load as well. Do not use
this device in a design where the input operating voltage
may exceed 40V, or where transients are likely to exceed
60V.
Under conditions of higher ambient temperatures, the volt-
age and current calculated in the previous examples will
drop. For instance, at the maximum ambient of 125˚C the
LM2936ZEP can only dissipate 128 mW, limiting the input
voltage to 7.34V for a 50 mA load, or 3.5 mA output current
for a 40V input.
The junction to ambient thermal resistance θJA rating has
two distinct components: the junction to case thermal resis-
tance rating θJC; and the case to ambient thermal resistance
Shutdown Pin
The LM2936BMEP has a pin for shutting down the regulator
output. Applying a Logic Level High ( 2.0V) to the Shutdown
pin will cause the output to turn off. Leaving the Shutdown
pin open, connecting it to Ground, or applying a Logic Level
>
rating θCA. The relationship is defined as: θJA = θJC + θCA
.
For the SO-8 and TO-252 surface mount packages the θJA
rating can be improved by using the copper mounting pads
on the printed circuit board as a thermal conductive path to
extract heat from the package.
<
Low ( 0.6V) will allow the regulator output to turn on.
On the SO-8 package the four ground pins are thermally
connected to the backside of the die. Adding approximately
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8
9
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Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead Small Outline Molded Package (M)
NS Package Number M08A
TO-252 Package (DT)
NS Package Number TD03B
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10
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
3-Lead TO-92 Plastic Package (Z)
NS Package Number Z03A
SOT-223 Package (MP)
NS Package Number MA04A
11
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
8-Lead Mini SOIC package (MM)
NS Package Number MUA08A
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NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
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systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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