LP2950ACN-L-3-3/TR 概述
100mA Low Dropout Voltage Regulators 100mA时的低压差稳压器 线性稳压器IC
LP2950ACN-L-3-3/TR 规格参数
是否Rohs认证: | 符合 | 生命周期: | Transferred |
包装说明: | ROHS COMPLIANT, TO-92, 3 PIN | Reach Compliance Code: | unknown |
风险等级: | 5.62 | Is Samacsys: | N |
最大回动电压 1: | 0.45 V | 最大输入电压: | 30 V |
最小输入电压: | 6 V | JESD-30 代码: | O-PBCY-T3 |
JESD-609代码: | e3 | 功能数量: | 1 |
端子数量: | 3 | 工作温度TJ-Max: | 125 °C |
工作温度TJ-Min: | -40 °C | 最大输出电流 1: | 0.1 A |
最大输出电压 1: | 3.34 V | 最小输出电压 1: | 3.26 V |
标称输出电压 1: | 3.3 V | 封装主体材料: | PLASTIC/EPOXY |
封装代码: | TO-92 | 封装形状: | ROUND |
封装形式: | CYLINDRICAL | 峰值回流温度(摄氏度): | NOT SPECIFIED |
认证状态: | Not Qualified | 调节器类型: | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
表面贴装: | NO | 端子面层: | Matte Tin (Sn) |
端子形式: | THROUGH-HOLE | 端子位置: | BOTTOM |
处于峰值回流温度下的最长时间: | NOT SPECIFIED | Base Number Matches: | 1 |
LP2950ACN-L-3-3/TR 数据手册
通过下载LP2950ACN-L-3-3/TR数据手册来全面了解它。这个PDF文档包含了所有必要的细节,如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载Solved by
LP2950/LP2951
100mA Low Dropout Voltage Regulators
TM
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Now Available in Lead Free Packaging
UNREGULATED DC
5V
@
MAX
ꢀ00mA
ꢀ
7
8
+
INPUT
FEEDBACK
OUTPUT
2
SENSE
ꢀ80k
Ω
+
_
ꢂ
ERROR
ꢁ
FROM
CMOS OR
TTL
AMPLIFIER
ꢁꢁ0k
Ω
5V TAP
SHUTDOWN
+
ꢂ0 mV
ꢂ0k
Ω
ꢀµF
5
______
ERROR
.
+
+
_
.
ERROR DETECTION
COMPARATOR
TO CMOS OR
TTL
ꢀ.2ꢁV
+
ꢃ
REFERENCE
GROUND
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀ
≤ ≤
µ ≤ ≤
≤
≤ ≤
µ ≤ ≤
≤
≤ ≤
µ ≤ ≤
µ
µ
µ
µ
µ
µ
µ
µ
µ
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
2
LP2950/51
C
O
N
DITIONS
L
P2
9
5
1
A
C
L
P2
9
5
1
C
P
A
R
A
ME
T
E
R
(Note2)
Min. Typ.
Min. Typ. Max.
U
NITS
Max.
8-PinVersionsonly(Continued)
ReferenceVoltage
Temperature
Coefficient
20
50
p
p
m/°C
FeedbackPinBias
Current
0.1
0.1
nA/°C
Temperature
Coefficient
ErrorComparator
OutputLeakage
Current
V =30
V
0.0
1
1
0.0
1
1
μ
A
O
H
OutputLo
w
Voltage V =4.5
V
1
5
0
2
5
0
1
5
0
2
5
0
m
V
I
N
I L=4
0
0μ
A
O
UpperThreshold
(Note7)
(Note7)
(Note7)
40
6
0
40
6
0
m
V
Voltage
LowerThreshold
Voltage
7
5
9
5
7
5
9
5
m
V
Hysteresis
1
5
1
5
m
V
S
h
utdownIn
put
In
p
utlogicVoltage
Low(RegulatorON)
1.3
0.7
1.3
0.7
V
High(RegulatorOFF)
2.0
2.0
V
Shutd
ownPinIn
p
ut V =2.4
V
3
0
5
0
3
0
5
0
0
μ
A
S
Current
V =3
0
V
6
7
5
8
0
0
6
7
5
8
0
0
μ
A
S
RegulatorOutput
(Note8)
3
1
0
3
1
μ
A
CurrentinShutd
o
wn
Thermal
8PinSOIC
°C/W
1
2
8.4
9
Resistanceθ
JA
°C/W
3PinTO-9
2
1
31.
Note1: Outputorreferencevoltagetemperaturecoefficientsdefinedastheworstcasevoltagechangedividedbythetotaltemperaturerange.
Note2:UnlessotherwisespecifiedalllimitsguaranteedforT =25°C,V =6V,IL=1
0
0μAandC =1
μ
F. Additionalco
n
ditionsforthe8-pinversionsarefeedback
J
IN
L
tiedto5Vtapandoutputtiedtooutputsense(V T=5V)andV U WN ≤0.8V.
U
S
D
O
Note3:RegulationismeasuredatconstantjunctOiontemperature,HusTingpulsetestingwithalo
wd
utycycle. Changesinoutputvoltageduetoheatingeffectsare
coveredu
n
derthespecificationforthermalregulation.
Note4: LineregulationfortheLP2
9
5
1istestedatI =1
m
A. ForIL=1
0
0 μAandT =1
2
5°C,lineregulationisguaranteedbydesignto0.2%. Seetypical
L
J
performancecharacteristicsforlineregulationversustemperatureandloadcurrent.
Note5:Dro
p
o
utvoltageisdefinedastheinputtooutputdifferentialatwhichtheoutputvoltagedrops100m
V
belowitsn
o
minalvaluemeasuredat1
Vdifferential.At
verylo
w
valuesofprogrammedoutputvoltage,theminimumin
p
utsupplyvoltageof2V(2.3
Vovertemperature)mustbetakenintoaccount.
Note6:V E
≤
V
UT ≤(V -1V),2.3 ≤VIN≤3
0
V,1
0
0
μ
A≤I ≤1
0
0
m
A,T ≤TJM
.
R
O
IN
L
J
A
X
Note7:ComFparatorthresholdsareexpressedintermsofavoltagedifferentialatthefeedbackterminalbelowthen
o
minalreferencevoltagemeasuredat6Vin
p
ut. To
expressthesethresholdsintermsofoutputvoltagechange,multiplybytheerroramplifiergain=V UT/V F=(R +R )/R . Forexample,ataprogrammedoutput
O
R
E
1
2
2
voltageof5V,theerroroutputisguaranteedtogolo
wwhentheoutputdropsby95m
Vx5V/1.2
35=384mV.ThresholdsremainconstantasapercentofV UTasV U
O
O T
isvaried,withthedro
p
o
utwarningoccurringattypically5%below
n
o
minal,7.5%guaranteed.
Note8: V
WN ≥2V,V ≤3
0
V,V U =0,Feedbackpintiedto5
V
Tap.
S
H T
D
IN
O T
Note9: AlltUypiOcalvaluesarenotguaranteed.Thevaluecouldvaryfromlottolot.
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢁ
10
6
250
225
200
5
4
RL= 50k Ω
175
150
1
RL
=
3
2
125
RL=50kΩ
RL
=
100
75
0.1
50
25
0
1
0
0.01
0
1
2
3
4
5
6
7
8
9
10
0.1
1
10
100
0
1
2
3
4
5
6
INPUT VOLTAGE (VOLTS)
LOAD CURRENT (mA)
INPUT VOLTAGE (VOLTS)
Input Current
Quiescent Current
Dropout Characteristics
16
320
280
160
150
140
130
120
110
100
90
80
70
RL=50
Ω
VOUT = 5V
240
200
160
12
IL= 1mA
IL= 0
VIN = 6V
IL= 100mA
120
80
60
50
40
30
20
10
0
8
4
40
0
0
1
2
3
4
5
6
7
8
-75
-25
0
25 50 75 100 125 150
-50
0
1
2
3
4
5
6
7
8
9 10
INPUT VOLTAGE (VOLTS)
TEMPERATURE (ºC)
INPUT VOLTAGE (VOLTS)
Ground Current
Ground Current
Input Current
16
190
170
150
130
14
12
IL=100mA
VIN =6V
IL =100uA
1
0
8
6
4
2
0
-75 -50 -25
0
25 50 75 100 125 150
0
1
2
3
4
5
6
7
8
TEMPERATURE (ºC)
INPUT VOLTAGE
Ground Current
Quiescent Current
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢃ
600
500
400
300
170
160
150
140
130
120
110
IL= 100mA
500
400
300
100
~
~
200
TJ = 25ºC
100
0
50
0
IL= 100 µA
110
100µA
1mA
OUTPUT CURRENT
10mA
100mA
-75 -50 -25
0
25 50 75 100 125 150
-75 -50 -25
0
25 50 75 100 125 150
TEMPERATURE (ºC)
TEMPERATURE (ºC)
Drop-Out Voltage
Drop-Out Voltage
Short Circuit Current
8
6
4
2.5
2.0
100
mV
VOUT = 5V
TA = 125ºC
50
mV
0
1.5
1.0
TA = 25ºC
TA = -55ºC
CL= 1 µF
IL= 1mA
HYSTERESIS
-50
mV
~
VOUT = 5V
2
0
~
8V
0.5
0.0
6V
4V
PULLUP RESISTOR TO
SEPARATE 5V SUPPLY
-2
0
1
2
3
4
5
0
200
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
400
600
800
INPUT VOLTAGE (V)
OUTPUT LOW VOLTAGE (V)
TIME(µs)
Error Comparator Output
LP2951 Comparator Sink Current
Line Transient Response
10
90
80
90
80
IO= 100 µA
5
CL= 1µF
VIN = 6V
VOUT = 5V
IO= 1mA
2
70
70
60
50
40
30
20
IL = 1mA
IL= 0
IO= 100mA
1
60
50
40
0.5
0.2
VOUT = 5V
CL= 1 µF
0.1
0.05
IL= 100 µA
CL= 1 µF
VIN = 6V
VOUT = 5V
30
20
0.02
0.01
IL = 10mA
103
10 2
10 5
106
10 1
10 2
10 3
10 4
10 5
10 6
10
100
1K
FREQUENCY (Hz)
10K
100K
1M
10 1
10 4
FREQUENCY (Hz)
FREQUENCY (Hz)
Output Impedance
Ripple Rejection
Ripple Rejection
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
5
20
50
0
2.3
PIN 7 DRIVEN BY EXTERNAL
SOURCE (REGULATOR RUN
OPEN LOOP)
10
-50
2.1
0
TA=1 25ºC
-100
-150
-200
-250
-10
TA= 25ºC
TA= 55ºC
1.9
-20
-30
1.7
-75 -50 -25
-75 -50 -25
0
25 50 75 100 125 150
-2.0
-1.5 -1.0 -0.5
0
0.5
1.0
0
25 50 75 100 125 150
TEMPEATURE (ºC)
FEEDBACK VOLTAGE (V)
TEMPERATURE
LP2951 Minimum Operating Voltage
LP2951 Feedback Bias Current
LP2951 Feedback Pin Current
250
200
150
80
60
40
7
CL= 1 µF
6
5
4
100
50
0
20
0
3
-20
2
1
0
IL = 10mA
VIN= 8V
CL = 10 µF
VOUT = 5V
-50
-40
CL= 1 µF
VOUT = 5V
-100
-60
CL= 10 µF
V OUT = 5V
~
~
~
~
100
mA
2
0
100
µA
100
100
µA
µA
-2
0
1
2
3
4
5
-100
0
100 200 300 400 500 600 700
0
4
8
12
16
20
TIME (ms)
TIME (us)
TIME (ms)
Load Transient Response
Load Transient Response
Enable Transient
120
400
300
200
120
8-PIN
TO-92 PACKAGE
MOLDED
0.25" LEADS SOLDERED
TO PC BOARD
DIP SOLDERED
TO PC BOARD
TJMAX = 125º C
100
80
100
80
VOUT = 5V
Vout=5V
TJMAX = 125 ºC
60
60
TA = 25ºC
40
TA=25 ºC
40
20
0
TA = 50ºC
100
0
TA= 85 ºC
20
0
TA = 85ºC
0
5
10
15
20
25
30
-75 -50 -25
0
25 50 75 100 125 150
0
5
10
15
20
25
30
INPUT VOLTAGE (V)
TEMPERATURE (ºC)
INPUT VOLTAGE (V)
LP2950 Maxium Rated Output
LP2951 Divider Resistance
LP2950 Maxium Rated Output Current
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢂ
µ
µ
µ
µ
µ
µ
µ
µ
µ
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
7
µ
°
° Ω
µ
Ω
µ µ
µ
µ
µ
×
µ
Ω
µ µ
µ
µ µ µ µ
≅ π ×
µ
µ
µ µ
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
8
+V IN
100K
8
+V IN
______
ERROR
ERROR
5
1.2
4
to
2
9V
1
OUTPUT
V OUT
LP2951
+
SHUTDOWN
INPUT
3
R1
3.3µF
SD
.01µF
FB
GND
7
4
1.23V
V REF
R2
+V
IN
+V
IN
470kΩ
8
+V
______
ERROR
IN
5
V OUT
1
8
470kΩ
V OUT
+V
______
ERROR
IN
5
ERROR
*V
= V
1
IN
OUT
OUTPUT
LP2951
V OUT
+
3
R1
1µF
LP2951
SD
FB
GND
4
3
SHUTDOWN
INPUT
RESET
SD
7
FB
GND
7
4
R2
*MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 40mV to 400mV.
DEPENDING ON LOAD CURRENT. CURRENT LIMIT IS TYPICALLY 150mA
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
9
+
6V
SEALED
1.5kΩ
120kΩ
LEAD-
8
ACID
1N457
BATTERY
SOURCE
+VIN
FB
SPX385
1
2
MAIN V+
OUT
V
LP2951
MEMORY V+
SENSE
400kΩ
+
FOR 5.5 V
3
20kΩ
1µF
SD
100kΩ
GND
4
NI-CAD
BACKUP
BATTERY
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Mar8-07 Rev E LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀ0
+V IN
8
ꢀ0K
Ω.
+V IN
_______
ERROR
5
ꢀ
5 DEGREE SHUTDOWN FLAG
ꢁ
AUX SHUTDOW
INPUT
.
SD
OFF
LP295ꢀ
ON
V
OUT
GND
FB
EXTERNAL CIRCUIT
PROTECTED FROM
ꢃ
7
OR
+
OVER TEMPERATURE
(V+ GOES OFF WHEN
TEMP > ꢀ25)
TEMP
SENSOR
ASꢁ5
-
RELAY
8.2K
Ω
+5V
ꢃ.7mA
UNREGULATED INPUT
ꢃ
20mA
8
OUTPUT
8
ꢁꢁ0K
Ω
IN
ꢀ
+V IN
2N5ꢃꢁ2
VOUT
(2)
ꢀ
V OUT
27K
Ω
LP295ꢀ
ꢀNꢃ00ꢀ
LP295ꢀ
2
5V
ꢂ
7
SENSE
0.ꢀµF
VTAP
FB
2
OUTPUT
FB
7
GND
+
ꢃ
ꢃ.7µF
LOAD
50mA
GND
ꢃ
ꢁꢂ0K
Ω
TO
ꢀNꢃ57
ꢁ00 mA
MIN VOLTAGE = ꢃV
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀꢀ
PAckAꢀꢁ: 3 Pin TO-92
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀ2
PAckAꢀꢁ: 8 Pin nSOic
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀꢁ
ORDꢁRinꢀ inFORMATiOn
Output
Voltage
Accuracy
Part number
Package Shꢂppꢂꢃg Status
Lead Free
ꢁ Pin TO-92
LP2950ACN-L-ꢁ-ꢁ
0.50%
ꢁ.ꢁV
ꢁ.ꢁV
Bulk
Active
Lead Free
ꢁ Pin TO-92
LP2950ACN-L-ꢁ-ꢁ/TR 0.50%
LP2950ACN-L-5-0 0.50%
LP2950ACN-L-5-0/TR 0.50%
Tape & Reel Active
Lead Free
ꢁ Pin TO-92
5.0V
Bulk
Active
Lead Free
ꢁ Pin TO-92
5.0V
Tape & Reel Active
Lead Free
ꢁ Pin TO-92
LP2950CN-L-ꢁ-ꢁ
ꢀ%
ꢀ%
ꢁ.ꢁV
Bulk
Active
Lead Free
ꢁ Pin TO-92
LP2950CN-L-ꢁ-ꢁ/TR
LP2950CN-L-5-0
ꢁ.ꢁV
Tape & Reel Active
Lead Free
ꢁ Pin TO-92
ꢀ%
5.0V
Bulk
Active
Lead Free
ꢁ Pin TO-92
LP2950CN-L-5-0/TR
LP295ꢀACS-L-ꢁ-ꢁ
ꢀ%
5.0V
Tape & Reel Active
Lead Free
8 Pin SOIC
0.50%
ꢁ.ꢁV
Bulk
Active
Lead Free
8 Pin SOIC
LP295ꢀACS-L-ꢁ-ꢁ/TR 0.50%
LP295ꢀACS-L-5-0 0.50%
LP295ꢀACS-L-5-0/TR 0.50%
ꢁ.ꢁV
Tape & Reel Active
Lead Free
8 Pin SOIC
5.0V/ADJ
5.0V/ADJ
ꢁ.ꢁV
Bulk
Active
Lead Free
8 Pin SOIC
Tape & Reel Active
Lead Free
8 Pin SOIC
LP295ꢀCS-L-ꢁ-ꢁ
LP295ꢀCS-L-ꢁ-ꢁ/TR
LP295ꢀCS-L-5-0
ꢀ%
ꢀ%
ꢀ%
ꢀ%
Bulk
Active
Lead Free
8 Pin SOIC
ꢁ.ꢁV
Tape & Reel Active
Lead Free
8 Pin SOIC
5.0V/ADJ
5.0V/ADJ
Bulk
Active
Lead Free
8 Pin SOIC
LP295ꢀCS-L-5-0/TR
Tape & Reel Active
Solved by
Sꢂpex corporatꢂoꢃ
Headquarters aꢃd
Sales Office
TM
2ꢁꢁ South Hillview Drive
Milpitas, CA 950ꢁ5
TEL: (ꢃ08) 9ꢁꢃ-7500
FAX: (ꢃ08) 9ꢁ5-7ꢂ00
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume
any liability arising out of the application or use of any product or circuit described herein; neither does it convey
any license under its patent rights nor the rights of others.
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀꢃ
ORDꢁRinꢀ inFORMATiOn
(continued)
Output
Voltage
ꢁ.ꢁV
Accuracy
Part number
Package Shꢂppꢂꢃg Status
LP2950ACN-ꢁ-ꢁ
LP2950ACN-5-0
LP2950CN-ꢁ-ꢁ
0.50%
0.50%
ꢀ%
ꢁ Pin TO-92
ꢁ Pin TO-92
ꢁ Pin TO-92
Bulk
Bulk
Bulk
EOL
EOL
EOL
EOL
EOL
EOL
EOL
EOL
EOL
EOL
EOL
EOL
OBS
OBS
OBS
OBS
5.0V
ꢁ.ꢁV
ꢁ.ꢁV
5.0V
5.0V
ꢁ.ꢁV
LP2950CN-ꢁ-ꢁ/TR
LP2950CN-5-0
ꢀ%
ꢁ Pin TO-92 Tape & Reel
ꢁ Pin TO-92 Bulk
ꢁ Pin TO-92 Tape & Reel
ꢀ%
LP2950CN-5-0/TR
LP295ꢀACS-ꢁ-ꢁ
LP295ꢀACS-5-0
LP295ꢀCS-ꢁ-ꢁ
ꢀ%
0.50%
0.50%
ꢀ%
8 Pin SOIC
Bulk
Bulk
Bulk
5.0V/ADJ 8 Pin SOIC
ꢁ.ꢁV
ꢁ.ꢁV
8 Pin SOIC
LP295ꢀCS-ꢁ-ꢁ/TR
LP295ꢀCS-5-0
ꢀ%
8 Pin SOIC Tape & Reel
Bulk
5.0V/ADJ 8 Pin SOIC Tape & Reel
ꢀ%
5.0V/ADJ 8 Pin SOIC
LP295ꢀCS-5-0/TR
LP2950ACN-ꢁ-ꢁ/TR
LP2950ACN-5-0/TR
LP295ꢀACS-ꢁ-ꢁ/TR
LP295ꢀACS-5-0/TR
ꢀ%
0.50%
0.50%
0.50%
0.50%
ꢁ.ꢁV
5.0V
ꢁ.ꢁV
ꢁ Pin TO-92 Tape & Reel
ꢁ Pin TO-92 Tape & Reel
8 Pin SOIC Tape & Reel
5.0V/ADJ 8 Pin SOIC Tape & Reel
Solved by
Sꢂpex corporatꢂoꢃ
Headquarters aꢃd
Sales Office
TM
2ꢁꢁ South Hillview Drive
Milpitas, CA 950ꢁ5
TEL: (ꢃ08) 9ꢁꢃ-7500
FAX: (ꢃ08) 9ꢁ5-7ꢂ00
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume
any liability arising out of the application or use of any product or circuit described herein; neither does it convey
any license under its patent rights nor the rights of others.
Mar8-07 Rev E
LP2950-5ꢀ Low Dropout Linear Regulator
© 2007 Sipex Corporation
ꢀ5
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