Datasheet

UNISONIC TECHNOLOGIES CO., LTD
M2950/2951
LINEAR INTEGRATED CIRCUIT
200mA LOW-DROPOUT
VOLTAGE REGULATOR

DESCRIPTION
The UTC M2950/2951 is a monolithic integrated voltage regulator
with low dropout voltage, and low quiescent current. It includes many
features that suitable for different applications.

*
*
*
*
*
*
*

FEATURES
Fixed output versions, 2.5V, 3V, 3.3V, 3.6V and 5V, are available.
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 M2951
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
M2950L-xx-D08-T
M2950G-xx-D08-T
M2950G-xx-S08-R
M2950L-xx-T92-B
M2950G-xx-T92-B
M2950L-xx-T92-K
M2950G-xx-T92-K
M2951L-D08-T
M2951G-D08-T
M2951G-S08-R
Note: Pin Assignment: I:VIN O:VOUT G:GND
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
Package
Packing
DIP-8
SOP-8
TO-92
TO-92
DIP-8
SOP-8
Tube
Tape Reel
Tape Box
Bulk
Tube
Tape Reel
1 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION (FOR M2950)
PACKAGE
VOLTAGE CODE
MARKING
DIP-8
SOP-8
25: 2.5V
30: 3.0V
33: 3.3V
36:3.6V
50:5.0V
TO-92
Voltage Code
UTC
M2950
XX
1

2
L: Lead Free
G: Halogen Free
Date Code
3
MARKING INFORMATION (FOR M2951)
DIP-8
25: 2.5V
30: 3.0V
33: 3.3V
36:3.6V
50:5.0V
SOP-8
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
UTC M2950
1
2
3
OUTPUT
INPUT
GND
TO-92 Plastic Package Bottom View
OUTPUT
1
SENSE
2
8
INPUT
7
FEEDBACK
OUTPUT
1
NC
2
NC
SHUTDOWN 3
6
NC
4
5
ERROR
UTC M2950
SHUTDOWN 3
6
5V TAP
4
5
ERROR
SOP-8 OR DIP-8 PACKAGE FOR UTC
LP2951

INPUT
7
UTC M2951
GND
8
GND
SOP-8 OR DIP-8 PACKAGE FOR UTC
LP2950
BLOCK DIAGRAM
FOR UTC M2951
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TJ=25C, unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.3~+18
V
Feedback Voltage
VFB
-1.5~+18
V
Shutdown Voltage
VSHDN
-0.3~+18
V
Comparator Output Voltage
VCO
-0.3~+18
V
Operation Junction Temperature
TJ
-40~+125
C
Storage Temperature
TSTG
-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
Junction to Ambient
Junction to Case

SYMBOL
TO-92
SOP-8
DIP-8
TO-92
SOP-8
θJA
θJC
RATING
160
180
105
83
45
UNIT
C/W
C/W
ELECTRICAL CHARACTERISTICS (TJ=25C, VIN=6V, IL=100A, CL=1F, unless otherwise specified.)
For All Versions:
PARAMETER
SYMBOL
Output Voltage
VOUT
Output Voltage
Output Voltage Temperature
Coefficient
Line Regulation
Load Regulation
VOUT
TcVo
∆VOUT
∆VOUT
Dropout Voltage
VD
Ground Current
IG
Dropout Ground Current
Current Limit
TEST CONDITION
MIN
TJ=25C (Note 1)
VOUT×0.98
-25C≦TJ≦+85C(Note 1)
VOUT×0.98
100μA≦IL≦200mA, TJ≦TJ(MAX) VOUT×0.98
ILIMIT
Output Noise (10Hz ~ 100KHz)
(Bypass=0.01F pins 7 to 1
(UTC M2951))
eN
20
6V≦VIN≦18V
100μA≦IL≦=200 mA
IL=100μA
IL=200mA (Note 2)
IL=100μA
IL=200mA
VIN=4.5V, IL=100μA
VOUT=0V
CL=1μF
CL=200μF
CL=3.3μF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TYP
MAX
UNIT
VOUT VOUT×1.02
V
VOUT VOUT×1.02
V
VOUT VOUT×1.02
V
0.03
0.04
50
380
75
8
110
200
260
0.1
0.1
80
450
120
12
170
280
100
ppm/C
0.2
0.2
150
600
140
22
200
420
430
160
100
%
%
mV
μV
mA
μV
mA
μV
4 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS (Cont.)
For UTC M2951 8-Pin Version Only
PARAMETER
SYMBOL
ERROR COMPARATOR
Output Leakage Current
IO(LEAK)
Output Low Voltage
VOL
Upper
VTHU
Threshold Voltage
Lower
VTHL
Hysteresis
VHYS
SHUTDOWN INPUT
Low
VIL
Input Logic Voltage
High
VIH
Shutdown Pin Input Current
ISHDN
Regulator Output Current
Shutdown
IDFF
TEST CONDITION
MIN
TYP
VOH=18V
VIN=VOUT×90%, IOL=400μA
(Note 3)
MAX
UNIT
1
250
μA
mV
3.2
7.6
%VO
(Note 3)
15
mV
Regulator ON
Regulator OFF
VSHDN=2.4V
VSHDN=18V
VSHDN≧2V, VIN≦18V, VOUT=0V
Feedback pin tied to 5V Tap.
1.3
0.7
30
450
50
600
μA
3
10
μA
2.0
V
For UTC M2951 8-Pin Version Only
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX
UNIT
Reference Voltage
VREF VOH=18V
1.22
1.235
1.25
V
Reference Voltage
VREF Over temperature(Note 4)
1.19
1.27
V
Feedback pin Bias Current
IFB
20
40
nA
Reference Voltage Temperature
VREF(TC)
50
ppm/C
Coefficient
Feedback Bias Current
IFB(TC)
0.1
nA/C
Temperature Coefficient
Note: 1. Additional conditions for 8-pin versions are feedback tied to 5V Tap an Output tied to Output Sense
(VOUT=5V) and VSHDN≦0.8V.
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. VREF≦VOUT≦(VIN-1V), 2.3V≦VIN≦30V, 100A≦IL≦250mA, TJ≦TJ(MAX)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
10 Ampere Low Dropout Regulator
CURRENT LIMIT
SECTION
+VIN=VOUT+0.5V
0.05Ω
680Ω
2N3906
UTC
D65H2
470Ω
8
+VIN
4.7MΩ
ERROR
5
UTC M2951
3
220Ω
20kΩ
SD
GND
4
FB
+VOUT 200m A
10kΩ
R1
7
VOUT
1
100μF
1%
4.7
F
R2
47Ω
0.033μF
VOUT=1.23V*(1+R1/R2)
For 5V output use internal resistors. Wire pin 6 to 7 and wire pin 2 to +VOUT
VIN
UTC M2950-2.5
UTC M2950-3.0
UTC M2950-3.3
UTC M2950-3.6
UTC M2950-5.0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
VOUT
6 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Input Current
Dropout Characteristics
6
310
290
5
4
RL=20
270
RL=50k
250
RL=20
3
230
210
2
190
1
0
170
0
1
3
4
2
Input Voltage(V)
5
6
150
0
2
4
6
8
Input Voltage(V)
10
12
Ground Pin Current
Dropout Voltage
130
600
120
IL=200mA
500
110
400
100
300
90
IL=100μA
80
100
70
50
60
0
-75 -50 -25
0 25 50 75 100 125 150
Temperature(°С)
VIN=6V
IL=100μA
50
-75 -50 -25
0 25 50 75 100 125 150
Temperature(°С)
Shutdown Threshold Voltage
Ground Pin Current
1.8
10
1.6
9
VIN=6V
IL=200mA
8
1.4
1.2
1.0
7
0.8
6
-75 -50 -25
0 25 50 75 100 125 150
Temperature(°С)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
0.6
-75 -50 -25
0 25 50 75 100 125 150
Temperature(°С)
7 of 8
QW-R102-004.J
M2950/2951

LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
Dropout Voltage
500
400
300
200
100
0
50
100
150
Output Current(mA)
200
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
8 of 8
QW-R102-004.J