LP2950G--50-TN3-T [UTC]
Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PSSO2, HALOGEN FREE, TO-252, 3 PIN;型号: | LP2950G--50-TN3-T |
厂家: | Unisonic Technologies |
描述: | Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PSSO2, HALOGEN FREE, TO-252, 3 PIN |
文件: | 总9页 (文件大小:397K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LP2950/2951
LINEAR INTEGRATED CIRCUIT
100 mA LOW-DROPOUT
VOLTAGE REGULATOR
1
1
TO-92
TO-252
DESCRIPTION
The UTC LP2950/2951 are monolithic integrated voltage regulators
with low dropout voltage, and low quiescent current. It includes many
features that suitable for different applications.
SOP-8
DIP-8
FEATURES
* Fixed output versions, 2.5V, 3V, 3.3V, 3.6V and 5V, are available.
* High accuracy output voltage.
1
* Extremely low quiescent current and dropout voltage.
* Extremely tight load and line regulation.
* Current and thermal limiting.
DFN-8(3x3)
* Very low temperature coefficient.
* Logic controlled shutdown and err flog available for 8 pin package.
* Output voltage programmable for LP2951.
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
LP2950L-xx-D08-T
LP2950L-xx-S08-T
LP2950L-xx-S08-R
LP2950L-xx-T92-B
LP2950L-xx-T92-K
LP2950L-xx-TN3-T
LP2950L-xx-TN3-R
LP2950L-xx-K08-3030-R
LP2951L-D08-T
Halogen Free
LP2950G-xx-D08-T
LP2950G-xx-S08-T
LP2950G-xx-S08-R
LP2950G-xx-T92-B
LP2950G-xx-T92-K
LP2950G-xx-TN3-T
LP2950G-xx-TN3-R
LP2950G-xx-K08-3030-R
LP2951G-D08-T
DIP-8
SOP-8
Tube
Tube
SOP-8
Tape Reel
Tape Box
Bulk
TO-92
TO-92
TO-252
TO-252
DFN-8(3×3)
DIP-8
Tube
Tape Reel
Tape Reel
Tube
LP2951L-S08-T
LP2951G-S08-T
SOP-8
Tube
LP2951L-S08-R
LP2951G-S08-R
SOP-8
Tape Reel
Tape Reel
LP2951L-K08-3030-R
LP2951G-K08-3030-R
DFN-8(3×3)
Note: Pin Assignment: I:VIN O:VOUT G:GND
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION (For LP2950)
PACKAGE
VOLTAGE CODE
MARKING
DIP-8
SOP-8
UTC
L: Lead Free
LP2950
G: Halogen Free
XX
TO-92
Voltage Code
Date Code
1
2
3
25: 2.5V
33: 3.3V
36:3.6V
50:5.0V
TO-252
LP2950
DFN-8(3×3)
LP2951
DFN-8(3×3)
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UNISONIC TECHNOLOGIES CO., LTD
LP2950/2951
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
OUTPUT
INPUT
1
2
3
4
8
7
INPUT
8
7
6
5
OUTPUT
SENSE
1
2
FEEDBACK
SENSE
SHUTDOWN
GND
FEEDBACK
5V TAP
UTC LP2951
Top View
UTC LP2951
Bottom View
5V TAP
ERROR
SHUTDOWN
GND
3
4
6
5
ERROR
DFN-8(3×3) Plastic Package Top View
DFN-8(3×3) Plastic Package Bottom View
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QW-R102-001.S
LP2950/2951
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
FOR LP2950
FOR LP2951
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCC
RATINGS
-0.3 ~ +30
UNIT
V
Supply Voltage
Feedback Voltage
VFB
-1.5 ~ +30
V
Shutdown Voltage
VSHDN
PD
-0.3 ~ +30
V
Power Dissipation
Internally Limited
-40 ~ +125
-65 ~ +150
W
Operation Junction Temperature
Storage Temperature
TJ
C
C
TSTG
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
RATING
160
92
UNIT
TO-92
TO-252
Junction-to-Ambient
Junction-to-Case
SOP-8
θJA
90
C/W
DIP-8
105
59
DFN-8(3×3)
TO-92
83
TO-252
6
θJC
C/W
SOP-8/DIP-8
DFN-8(3×3)
45
10
ELECTRICAL CHARACTERISTICS (TJ=25C, VIN=6V, IL=100A, CL=1μF, unless otherwise specified.)
For All Version:
PARAMETER
SYMBOL
VOUT
TEST CONDITION
TJ=25C (Note 1)
-25C≦TJ≦+85C(Note 1)
MIN
TYP
MAX
UNIT
VOUT×0.98 VOUT VOUT×1.02
VOUT×0.98 VOUT VOUT×1.02
V
V
V
Output Voltage
Output Voltage
VOUT 100A≦IL≦100mA, TJ≦TJ(max) VOUT×0.98 VOUT VOUT×1.02
Output Voltage Temperature
Coefficient
TcVo
20
100
ppm/C
Line Regulation
∆VOUT 6V≦VIN≦30V
0.03
0.04
50
0.1
0.1
80
0.2
0.2
%
%
Load Regulation
∆VOUT 100μA≦IL≦100 mA
IL=100μA
VD
150
600
140
14
Dropout Voltage
Ground Current
mV
IL=100mA (Note 2)
380
75
450
120
12
IL=100μA
IG
μA
mA
μA
IL=100mA
8
Dropout Ground Current
Current Limit
VIN=4.5V,IL=100μA
110
160
170
215
200
250
430
160
100
ILIMIT
eN
VOUT=0
mA
CL=1μF
Output Noise (10Hz ~ 100KHz)
(Bypass=0.01F pins 7 to 1
(LP2951))
CL=200μF
CL=3.3μF
μV
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LP2951 8-Pin Version Only
PARAMETER
Reference Voltage
SYMBOL
VREF
VREF
TEST CONDITION
MIN
1.22
1.19
TYP
MAX
1.25
1.27
40
UNIT
V
1.235
Reference Voltage
Over temperature(Note 4)
V
Feedback pin Bias Current
Reference Voltage Temperature
Coefficient
IFB
20
50
nA
VREF(TC)
IFB(TC)
ppm/C
nA/C
Feedback Bias Current
Temperature Coefficient
Error Comparator
0.1
Output Leakage Current
Output Low Voltage
IO(LEAK) VOH=30V
1
A
mV
VOL
VIN=4.5V, IOL=400A
250
VTHU
VTHL
VHYS
Upper
Threshold Voltage
Lower
(Note 3)
(Note 3)
(Note 3)
3.2
2.0
%VO
%VO
mV
7.6
Hysteresis
15
Shutdown Input
Low
Input Logic Voltage
High
VIL
VIH
Regulator ON
Regulator OFF
VSHDN=2.4V
VSHDN=30V
1.3
0.70
V
30
50
μA
μA
Shutdown Pin Input Current
ISHDN
IDFF
450
600
Regulator Output Current
Shutdown
VSHDN≧2V, VIN≦30V, VOUT=0
3
10
μA
Feedback pin tied to 5V Tap.
Note: 1.Additional conditions for 8-pin versions are FB pin tied to 5VTAP, Output tied to Sense (VOUT=5V) and
VSHDN0.8V .
2.Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below
its nominal value measured at 1V differential.
3.Comparator thresholds are expressed in terms of percentage value of voltage output.
4.VREFVOUT(VIN-1V), 2.3VVIN30V, 100AIL100mA, TJTJ(MAX)
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
10 Ampere Low Dropout Regulator
CURRENT LIMIT
SECTION
+VIN=Vout+0.5V
0.05
680
2N3906
UTC
D65H0
470
8
4.7M
+VIN
+VOUT 100m A
100 F
10k
5
7
ERROR
UTC LP2951
R1
SD
4.7 F
3
FB
1%
220
GND
4
Vout
R2
20k
1
47
0.033 F
VOUT=1.23V*(1+R1/R2)
For 5V output use internal resistors.Wire pin 6 to 7 and wire pin 2 to +VOUT
Fig.1
UTC LP2950-2.5
V
IN
V
OUT
UTC LP2950-3.0
UTC LP2950-3.3
UTC LP2950-3.6
UTC LP2950-5.0
Fig.2
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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