UNISONIC TECHNOLOGIES CO., LTD
LP2950/2951
100 mA LOW-DROPOUT
VOLTAGE REGULATOR
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
1
TO-92
1
TO-252
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.
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FEATURES
Fixed output versions, 2.5V, 3V, 3.3V, 3.6V and 5V, are available.
High accuracy output voltage.
Extremely low quiescent current and dropout voltage.
Extremely tight load and line regulation.
Current and thermal limiting.
Very low temperature coefficient.
Logic controlled shutdown and err flog available for 8 pin package.
Output voltage programmable for LP2951.
SOP-8
1
DIP-8
DFN-8(3x3)
ORDERING INFORMATION
Package
DIP-8
SOP-8
SOP-8
TO-92
TO-92
TO-252
TO-252
DFN-8(3×3)
DIP-8
SOP-8
SOP-8
DFN-8(3×3)
Packing
Tube
Tube
Tape Reel
Tape Box
Bulk
Tube
Tape Reel
Tape Reel
Tube
Tube
Tape Reel
Tape Reel
Ordering Number
Lead Free
Halogen Free
LP2950L-xx-D08-T
LP2950G-xx-D08-T
LP2950L-xx-S08-T
LP2950G-xx-S08-T
LP2950L-xx-S08-R
LP2950G-xx-S08-R
LP2950L-xx-T92-B
LP2950G-xx-T92-B
LP2950L-xx-T92-K
LP2950G-xx-T92-K
LP2950L-xx-TN3-T
LP2950G-xx-TN3-T
LP2950L-xx-TN3-R
LP2950G-xx-TN3-R
LP2950L-xx-K08-3030-R
LP2950G-xx-K08-3030-R
LP2951L-D08-T
LP2951G-D08-T
LP2951L-S08-T
LP2951G-S08-T
LP2951L-S08-R
LP2951G-S08-R
LP2951L-K08-3030-R
LP2951G-K08-3030-R
Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND
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LP2950/2951
MARKING INFORMATION (For LP2950)
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
DIP-8
SOP-8
TO-92
Voltage Code
UTC
LP2950
XX
1
2
3
L: Lead Free
G: Halogen Free
Date Code
TO-252
25: 2.5V
33: 3.3V
36:3.6V
50:5.0V
LP2950
DFN-8(3×3)
LP2951
DFN-8(3×3)
UNISONIC TECHNOLOGIES CO., LTD
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UNISONIC TECHNOLOGIES CO., LTD
LP2950/2951
PIN CONFIGURATIONS
LINEAR INTEGRATED CIRCUIT
OUTPUT 1
SENSE 2
SHUTDOWN 3
GND 4
UTC LP2951
Top View
8
7
6
5
INPUT
FEEDBACK
5V TAP
ERROR
INPUT
FEEDBACK
5V TAP
ERROR
8
7
6
5
1
2
3
4
OUTPUT
SENSE
SHUTDOWN
GND
UTC LP2951
Bottom View
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
BLOCK DIAGRAM
FOR LP2950
LINEAR INTEGRATED CIRCUIT
FOR LP2951
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LP2950/2951
ABSOLUTE MAXIMUM RATINGS
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL
RATINGS
UNIT
Supply Voltage
V
CC
-0.3 ~ +30
V
Feedback Voltage
V
FB
-1.5 ~ +30
V
Shutdown Voltage
V
SHDN
-0.3 ~ +30
V
Power Dissipation
P
D
Internally Limited
W
Operation Junction Temperature
T
J
-40 ~ +125
C
Storage Temperature
T
STG
-65 ~ +150
C
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
TO-92
TO-252
SOP-8
DIP-8
DFN-8(3×3)
TO-92
TO-252
SOP-8/DIP-8
DFN-8(3×3)
SYMBOL
RATING
160
92
90
105
59
83
6
45
10
UNIT
Junction-to-Ambient
θ
JA
C/W
Junction-to-Case
θ
JC
C/W
ELECTRICAL CHARACTERISTICS
(T
J
=25C, V
IN
=6V, I
L
=100A, C
L
=1μF, unless otherwise specified.)
SYMBOL
V
OUT
V
OUT
TcVo
∆V
OUT
∆V
OUT
V
D
I
G
I
LIMIT
eN
6V
≦
V
IN
≦
30V
100μA
≦
I
L
≦
100 mA
I
L
=100μA
I
L
=100mA (Note 2)
I
L
=100μA
I
L
=100mA
V
IN
=4.5V,I
L
=100μA
V
OUT
=0
C
L
=1μF
C
L
=200μF
C
L
=3.3μF
TEST CONDITION
MIN
T
J
=25C (Note 1)
V
OUT
×0.98
-25C
≦
T
J
≦
+85C(Note 1)
V
OUT
×0.98
100A
≦
I
L
≦
100mA, T
J
≦
T
J
(max) V
OUT
×0.98
20
0.03
0.04
50
380
75
8
110
160
0.1
0.1
80
450
120
12
170
215
TYP
MAX
UNIT
V
OUT
V
OUT
×1.02
V
V
OUT
V
OUT
×1.02
V
V
OUT
V
OUT
×1.02
V
100
0.2
0.2
150
600
140
14
200
250
430
160
100
ppm/C
%
%
mV
μA
mA
μA
mA
μV
For All Version:
PARAMETER
Output Voltage
Output Voltage
Output Voltage Temperature
Coefficient
Line Regulation
Load Regulation
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Output Noise (10Hz ~ 100KHz)
(Bypass=0.01F pins 7 to 1
(LP2951))
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