LP2992AILD-1.5 [NSC]
Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors; 微250毫安低噪音超低压降稳压器，采用SOT -23和LLP设计用于非常低ESR输出电容器的软件包
| 型号： | LP2992AILD-1.5 |
| 厂家： | 
National Semiconductor |
| 描述： | Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors |
| 文件： | 总15页 (文件大小：596K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
June 2002
LP2992
Micropower 250 mA Low-Noise Ultra Low-Dropout
Regulator in SOT-23 and LLP Packages
Designed for Use with Very Low ESR Output Capacitors
General Description
Features
n Ultra low dropout voltage
The LP2992 is a 250 mA, fixed-output voltage regulator
designed to provide ultra low-dropout and low noise in bat-
tery powered applications.
n Guaranteed 250 mA output current
n Smallest possible size (SOT-23, LLP package)
n Requires minimum external components
n Stable with low-ESR output capacitor
™
Using an optimized VIP (Vertically Integrated PNP) pro-
cess, the LP2992 delivers unequalled performance in all
specifications critical to battery-powered designs:
<
n
1 µA quiescent current when shut down
@
Dropout Voltage: Typically 450 mV
250 mA load, and
n Low ground pin current at all loads
n Output voltage accuracy 1% (A Grade)
n High peak current capability
n Wide supply voltage range (16V max)
n Low ZOUT: 0.3Ω typical (10 Hz to 1 MHz)
n Overtemperature/overcurrent protection
n −40˚C to +125˚C junction temperature range
n Custom voltages available
@
5 mV 1 mA load.
@
Ground Pin Current: Typically 1500 µA 250 mA load, and
@
75 µA 1 mA load.
Enhanced Stability: The LP2992 is stable with output ca-
pacitor ESR as low as 5 mΩ, which allows the use of ceramic
capacitors on the output.
Sleep Mode: Less than 1 µA quiescent current when
ON/OFF pin is pulled low.
Smallest Possible Size: SOT-23 and LLP packages use
absolute minimum board space.
Applications
n Cellular Phone
Precision Output: 1% tolerance output voltages available
(A grade).
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera
Low Noise: By adding a 10 nF bypass capacitor, output
noise can be reduced to 30 µV (typical).
Multiple voltage options, from 1.5V to 5.0V, are available as
standard products. Consult factory for custom voltages.
Block Diagram
20029401
™
VIP is a trademark of National Semiconductor Corporation.
© 2002 National Semiconductor Corporation
DS200294
www.national.com
Basic Application Circuit
20029402
*ON/OFF input must be actively terminated. Tie to V if this function is not to be used.
IN
**Minimum capacitance is shown to ensure stability (may be increased without limit). Ceramic capacitor required for output (see Application Hints).
***Reduces output noise (may be omitted if application is not noise critical). Use ceramic or film type with very low leakage current (see Application Hints).
Connection Diagrams
5-Lead Small Outline Package (M5)
6-Lead LLP Package (LD)
20029446
Top View
20029403
Top View
See NS Package Number NLDBA006
Outline Drawing LDE06A
See NS Package Number MF05A
For ordering information see Table 1
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2
Ordering Information
TABLE 1. Package Marking and Ordering Information
Output Voltage
Grade
Package
Order Information
Supplied as:
(V)
Marking
5-Lead Small Outline Package (M5)
1.5
1.5
1.5
1.5
1.8
1.8
1.8
1.8
2.5
2.5
2.5
2.5
3.0
3.0
3.0
3.0
3.3
3.3
3.3
3.3
5.0
5.0
5.0
5.0
A
A
LP2992AIM5X-1.5
LP2992AIM5-1.5
LP2992IM5X-1.5
LP2992IM5-1.5
LP2992AIM5X-1.8
LP2992AIM5-1.8
LP2992IM5X-1.8
LP2992IM5-1.8
LP2992AIM5X-2.5
LP2992AIM5-2.5
LP2992IM5X-2.5
LP2992IM5-2.5
LP2992AIM5X-3.0
LP2992AIM5-3.0
LP2992IM5X-3.0
LP2992IM5-3.0
LP2992AIM5X-3.3
LP2992AIM5-3.3
LP2992IM5X-3.3
LP2992IM5-3.3
LP2992AIM5X-5.0
LP2992AIM5-5.0
LP2992IM5X-5.0
LP2992IM5-5.0
LFBA
LFBA
LFBB
LFBB
LFCA
LFCA
LFCB
LFCB
LFDA
LFDA
LFDB
LFDB
LF8A
LF8A
LF8B
LF8B
LFEA
LFEA
LFEB
LFEB
LFFA
LFFA
LFFB
LFFB
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
6-Lead LLP Package (LDE06A)
1.5
1.5
1.5
1.5
1.8
1.8
1.8
1.8
2.5
2.5
2.5
2.5
3.3
3.3
3.3
3.3
5.0
5.0
5.0
5.0
A
A
LP2992AILDX-1.5
LP2992AILD-1.5
LP2992ILDX-1.5
LP2992ILD-1.5
LP2992AILDX-1.8
LP2992AILD-1.8
LP2992ILDX-1.8
LP2992ILD-1.8
LP2992AILDX-2.5
LP2992AILD-2.5
LP2992ILDX-2.5
LP2992ILD-2.5
LP2992AILDX-3.3
LP2992AILD-3.3
LP2992ILDX-3.3
LP2992ILD-3.3
LP2992AILDX-5.0
LP2992AILD-5.0
LP2992ILDX-5.0
LP2992ILD-5.0
L011A
L011A
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
STD
STD
A
L011AB
L011AB
L012A
A
L012A
STD
STD
A
L012AB
L012AB
L013A
A
L013A
STD
STD
A
L013AB
L013AB
L014A
A
L014A
STD
STD
A
L014AB
L014AB
L015A
A
L015A
STD
STD
L015AB
L015AB
3
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Absolute Maximum Ratings (Note 1)
Input Supply Voltage (Survival)
Input Supply Voltage (Operating)
Shutdown Input Voltage (Survival)
Output Voltage (Survival, (Note 4))
IOUT (Survival)
−0.3V to +16V
2.2V to +16V
−0.3V to +16V
−0.3V to +9V
Short Circuit
Protected
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Operating Junction Temperature
Range
−65˚C to +150˚C
−40˚C to +125˚C
260˚C
Input-Output Voltage (Survival,
(Note 5))
−0.3V to +16V
Lead Temp. (Soldering, 5 sec.)
ESD Rating (Note 2)
2 kV
Power Dissipation (Note 3)
Internally Limited
Electrical Characteristics
Limits in standard typeface are for TJ = 25˚C. and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
LP2992AI-X.X
LP2992I-X.X
Symbol
∆VO
Parameter
Conditions
IL = 1 mA
Typ
(Note 6)
(Note 6)
Units
Min
−1.0
−1.5
−2.5
−3.5
−4.5
Max
1.0
Min
−1.5
−2.5
−3.5
−4.0
−5.0
Max
1.5
Output Voltage
Tolerance
1 mA ≤ IL ≤ 50 mA
1.5
2.5
2.5
3.5
%VNOM
1 mA ≤ IL ≤ 250 mA
VO(NOM)+1V ≤ VIN ≤ 16V
3.5
4.0
4.5
5.0
Output Voltage
0.007
2.05
0.014
0.014
%/V
V
Line Regulation
Minimum input voltage
required to maintain
outpout regulation
Dropout Voltage
(Note 7)
0.032
2.20
0.032
2.20
V
IN(min)
VIN–VO
IL = 0
0.5
5
2.5
4
2.5
4
IL = 1 mA
IL = 50 mA
IL = 150 mA
IL = 250 mA
IL = 0
9
9
12
12
100
260
450
65
125
180
325
470
575
850
95
125
180
325
470
575
850
95
mV
IGND
Ground Pin Current
125
110
170
600
1000
1500
2500
2300
4000
0.8
125
110
170
600
1000
1500
2500
2300
4000
0.8
IL = 1 mA
IL = 50 mA
IL = 150 mA
IL = 250 mA
75
350
850
1500
µA
<
VON/OFF 0.3V
0.01
0.05
1.4
<
VON/OFF 0.15V
ON/OFF Input Voltage High = O/P ON
(Note 8)
2
2
VON/OFF
1.6
1.6
V
Low = O/P OFF
0.55
0.15
0.15
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4
Electrical Characteristics (Continued)
Limits in standard typeface are for TJ = 25˚C. and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
LP2992AI-X.X
LP2992I-X.X
Symbol
ION/OFF
Parameter
Conditions
Typ
(Note 6)
(Note 6)
Units
µA
Min
Max
−2
Min
Max
−2
ON/OFF Input Current VON/OFF = 0
VON/OFF = 5V
0.01
5
15
15
en
Output Noise
BW = 300 Hz to 50 kHz,
Voltage (RMS)
COUT = 10 µF
30
45
µV
CBYPASS = 10 nF
Ripple Rejection
f = 1 kHz, CBYPASS = 10 nF
dB
COUT = 10 µF
IO(SC)
IO(PK)
Short Circuit Current
Peak Output Current
RL = 0 (Steady State)
(Note 9)
400
350
mA
mA
VOUT ≥ Vo(NOM) −5%
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the
device outside of its rated operating conditions.
Note 2: The ESD rating of pins 3 and 4 for the SOT-23 package, or pins 1 and 3 for the LLP package, is 1 kV.
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T (MAX), the junction-to-ambient thermal resistance, θ
,
J-A
J
and the ambient temperature, T . The maximum allowable power dissipation at any ambient temperture is calculated using:
A
Where the value of θ
for the SOT-23 package is 220˚C/W in a typical PC board mounting and the LLP package is 65˚C/W. Exceeding the maximum allowable
J-A
dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown.
Note 4: If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2992 output must be diode-clamped to ground.
Note 5: The output PNP structure contains a diode between the V to V
terminals that is normally reverse-biased. Reversing the polarity from V to V
will
OUT
IN
OUT
IN
turn on this diode.
Note 6: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 7: V must be the greater of 2.2V or V
+ Dropout Voltage to maintain output regulation. Dropout voltage is defined as the input to output differential
OUT(nom)
IN
at which the output voltage drops 2% below the value measured with a 1V differential.
Note 8: The ON/OFF input must be properly driven to prevent possible misoperation. For details, refer to Application Hints.
>
Note 9: The LP2992 has foldback current limiting which allows a high peak current when V
forced to ground (see Typical Performance Characteristics curves).
0.5V, and then reduces the maximum output current as V
is
OUT
OUT
5
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Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN
=
VOUT(NOM) +1, TA = 25˚C, ON/OFF pin is tied to VIN
.
VOUT vs Temperature
Short-Circuit Current
20029409
20029408
Short-Circuit Current
Short Circuit Current vs Output Voltage
20029410
20029411
Ripple Rejection
Ripple Rejection
20029413
20029414
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6
Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN
=
VOUT(NOM) +1, T = 25˚C, ON/OFF pin is tied to V . (Continued)
A
IN
Ripple Rejection
Ripple Rejection
Ripple Rejection
Ripple Rejection
Ripple Rejection
Ripple Rejection
20029415
20029417
20029419
20029416
20029418
20029423
7
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Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN
=
VOUT(NOM) +1, T = 25˚C, ON/OFF pin is tied to V . (Continued)
A
IN
Ripple Rejection
Output Impedance vs Frequency
20029420
20029422
Output Impedance vs Frequency
Output Noise Density
20029424
20029421
Output Noise Density
GND Pin vs Load Current
20029425
20029426
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8
Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN
=
VOUT(NOM) +1, T = 25˚C, ON/OFF pin is tied to V . (Continued)
A
IN
Dropout Voltage vs Temperature
Input Current vs Pin
20029427
20029429
Ignd vs Load and Temperature
Instantaneous Short Circuit Current
20029430
20029431
Load Transient Response
Load Transient Response
20029433
20029434
9
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Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN
=
VOUT(NOM) +1, T = 25˚C, ON/OFF pin is tied to V . (Continued)
A
IN
Load Transient Response
Line Transient Response
Line Transient Response
Turn-On Time
20029435
20029447
Line Transient Response
20029436
20029437
Line Transient Response
20029438
20029439
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10
Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN
=
VOUT(NOM) +1, T = 25˚C, ON/OFF pin is tied to V . (Continued)
A
IN
Turn-On Time
Turn-On Time
20029441
20029440
Turn-On Time
20029442
11
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Application Hints
EXTERNAL CAPACITORS
ceramic capacitors can exhibit large changes in capacitance
with temperature (see next section, Capacitor Characteris-
tics).
Like any low-dropout regulator, the LP2992 requires external
capacitors for regulator stability. These capacitors must be
correctly selected for good performance.
The output capacitor must be located not more than 1 cm
from the output pin and returned to a clean analog ground.
Input Capacitor
Noise Bypass Capacitor:
An input capacitor whose capacitance is ≥ 1 µF is required
between the LP2992 input and ground (the amount of ca-
pacitance may be increased without limit).
Connecting a 10 nF capacitor to the Bypass pin significantly
reduces noise on the regulator output. It should be noted that
the capacitor is connected directly to a high-impedance cir-
cuit in the bandgap reference.
This capacitor must be located a distance of not more than 1
cm from the input pin and returned to a clean analog ground.
Any good quality ceramic, tantalum, or film capacitor may be
used at the input.
Because this circuit has only a few microamperes flowing in
it, any significant loading on this node will cause a change in
the regulated output voltage. For this reason, DC leakage
current through the noise bypass capacitor must never ex-
ceed 100 nA, and should be kept as low as possible for best
output voltage accuracy.
Important: Tantalum capacitors can suffer catastrophic fail-
ure due to surge current when connected to
a
low-impedance source of power (like a battery or very large
capacitor). If a Tantalum capacitor is used at the input, it
must be guaranteed by the manufacturer to have a surge
current rating sufficient for the application.
The types of capacitors best suited for the noise bypass
capacitor are ceramic and film. High-quality ceramic capaci-
tors with either NPO or COG dielectric typically have very
low leakage. 10 nF polypropolene and polycarbonate film
capacitors are available in small surface-mount packages
and typically have extremely low leakage current.
There are no requirements for ESR on the input capacitor,
but tolerance and temperature coefficient must be consid-
ered when selecting the capacitor to ensure the capacitance
will be ≥ 1 µF over the entire operating temperature range.
Output Capacitor:
CAPACITOR CHARACTERISTICS
The LP2992 is designed specifically to work with ceramic
output capacitors, utilizing circuitry which allows the regula-
tor to be stable across the entire range of output current with
an output capacitor whose ESR is as low as 5 mΩ. It may
also be possible to use Tantalum or film capacitors at the
output, but these are not as attractive for reasons of size and
cost (see next section Capacitor Characteristics).
The LP2992 was designed to work with ceramic capacitors
on the output to take advantage of the benefits they offer: for
capacitance values in the 2.2 µF to 10 µF range, ceramics
are the least expensive and also have the lowest ESR
values (which makes them best for eliminating
high-frequency noise). The ESR of a typical 4.7 µF ceramic
capacitor is in the range of 5 mΩ to 10 mΩ, which easily
meets the ESR limits required for stability by the LP2992.
The output capacitor must meet the requirement for mini-
mum amount of capacitance and also have an ESR (equiva-
lent series resistance) value which is within the stable range.
Curves are provided which show the stable ESR range as a
function of load current (see ESR graph below).
One disadvantage of ceramic capacitors is that their capaci-
tance can vary with temperature. Most large value ceramic
capacitors (≥ 2.2 µF) are manufactured with the Z5U or Y5V
temperature characteristic, which results in the capacitance
dropping by more than 50% as the temperature goes from
25˚C to 85˚C.
This could cause problems if a 4.7 µF capacitor were used
on the output since it will drop down to approximately 2.3 µF
at high ambient temperatures (which could cause the
LP2992 to oscillate). If Z5U or Y5V capacitors are used on
the output, a minimum capacitance value of 10 µF must be
observed.
A better choice for temperature coefficient in ceramic capaci-
tors is X7R, which holds the capacitance within 15%. Un-
fortunately, the larger values of capacitance are not offered
by all manufacturers in the X7R dielectric.
Tantalum:
Tantalum capacitors are less desirable than ceramics for use
as output capacitors because they are more expensive when
comparing equivalent capacitance and voltage ratings in the
1 µF to 4.7 µF range.
20029407
Important: The output capacitor must maintain its ESR
within the stable region over the full operating temperature
range of the application to assure stability.
Another important consideration is that Tantalum capacitors
have higher ESR values than equivalent size ceramics. This
means that while it may be possible to find a Tantalum
capacitor with an ESR value within the stable range, it would
have to be larger in capacitance (which means bigger and
more costly) than a ceramic capacitor with the same ESR
value.
The LP2992 requires a minimum of 4.7 µF on the output
(output capacitor size can be increased without limit).
It is important to remember that capacitor tolerance and
variation with temperature must be taken into consideration
when selecting an output capacitor so that the minimum
required amount of output capacitance is provided over the
full operating temperature range. It should be noted that
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12
However, if the output is pulled above the input, this diode
will turn ON and current will flow into the regulator output. In
such cases, a parasitic SCR can latch which will allow a high
current to flow into VIN (and out the ground pin), which can
damage the part.
Application Hints (Continued)
It should also be noted that the ESR of a typical Tantalum will
increase about 2:1 as the temperature goes from 25˚C down
to −40˚C, so some guard band must be allowed.
In any application where the output may be pulled above the
input, an external Schottky diode must be connected from
VIN to VOUT (cathode on VIN, anode on VOUT), to limit the
reverse voltage across the LP2992 to 0.3V (see Absolute
Maximum Ratings).
ON/OFF INPUT OPERATION
The LP2992 is shut off by driving the ON/OFF input low, and
turned on by pulling it high. If this feature is not to be used,
the ON/OFF input should be tied to VIN to keep the regulator
output on at all times.
LLP Mounting
To assure proper operation, the signal source used to drive
the ON/OFF input must be able to swing above and below
the specified turn-on/turn-off voltage thresholds listed in the
Electrical Characteristics section under VON/OFF. To prevent
mis-operation, the turn-on (and turn-off) voltage signals ap-
plied to the ON/OFF input must have a slew rate which is
≥ 40 mV/µs.
The LLP package requires specific mounting techniques
which are detailed in National Semiconductor Application
#
Note 1187. Referring to the section PCB Design Recom-
mendations, it should be noted that the pad style which
should be used with the LLP package is the NSMD
(non-solder mask defined) type.
Caution: the regulator output voltage can not be guaranteed
if a slow-moving AC (or DC) signal is applied that is in the
range between the specified turn-on and turn-off voltages
listed under the electrical specification VON/OFF (see Electri-
cal Characteristics).
REVERSE INPUT-OUTPUT VOLTAGE
The PNP power transistor used as the pass element in the
LP2992 has an inherent diode connected between the regu-
lator output and input. During normal operation (where the
input voltage is higher than the output) this diode is
reverse-biased.
13
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Physical Dimensions inches (millimeters)
unless otherwise noted
5-Lead Small Outline Package (M5)
NS Package Number MF05A
For Order Numbers, refer to Table 1 in the “Ordering Information” section of this document.
www.national.com
14
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
6-Lead LLP Package (LD)
NS Package Number LDE06A
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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:
1. Life support devices or systems are devices or
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.
National Semiconductor
Corporation
Americas
National Semiconductor
Europe
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
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Japan Ltd.
Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
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Email: support@nsc.com
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Email: ap.support@nsc.com
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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TI
LP2992AILD-1.5/NOPB
IC VREG 1.5 V FIXED POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator
NSC
LP2992AILD-1.8
Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
NSC
LP2992AILD-1.8
LP2992 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and WSON Packages Designed for Use with Very Low ESR Output Capacitors
TI
LP2992AILD-2.5
Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
NSC
LP2992AILD-3.3
Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
NSC
LP2992AILD-3.3
LP2992 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and WSON Packages Designed for Use with Very Low ESR Output Capacitors
TI
LP2992AILD-3.3/NOPB
LP2992 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and WSON Packages Designed for Use with Very Low ESR Output Capacitors
TI
LP2992AILD-3.3/NOPB
IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator
NSC
LP2992AILD-5.0
Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
NSC
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