UTCM2950-3.3 [UTC]
250 mA LOW-DROPOUT VOLTAGE REGULATOR; 250毫安低压差稳压器
| 型号： | UTCM2950-3.3 |
| 厂家： | 
Unisonic Technologies |
| 描述： | 250 mA LOW-DROPOUT VOLTAGE REGULATOR |
| 文件： | 总7页 (文件大小：148K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
250 mA LOW-DROPOUT VOLTAGE
REGULATOR
1
TO-92
SOP-8
DIP-8
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. Available in 3-pin TO-92, DIP-8 and SOP-8
packages.
FEATURES
*High accuracy 2.5, 3.0, 3.3, 3.6 or 5V fixed output for
TO-92, SOP-8 package.
*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 error flag available for DIP
and SOP package.
*Output voltage programmable for DIP and SOP package.
APPLICATIONS
*Battery powered equipment.
*High efficient linear regulator down to 1.24V.
*Cellular phones.
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R102-004,D
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
UTC M2950
1
2
3
OUTPUT
INPUT
GND
TO-92 Plastic Package
Bottom View
OUTPUT
SENSE
1
2
3
4
8
7
6
5
INPUT
FEEDBACK
5V TAP
UTC
M2951
SHUTDOWN
GND
ERROR
SOP-8 OR DIP-8 PACKAGE
FOR UTC M2951
OUTPUT
NC
1
2
3
4
8
7
6
5
INPUT
NC
UTC
M2950
SHUTDOWN
GND
NC
ERROR
SOP-8 OR DIP-8 PACKAGE
FOR UTC M2950
Fig.1
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R102-004,D
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
5V 250mA
MAX.
INPUT
OUTPUT
FEEDBACK 7
8
1
UNRAGULATED
DC
SENSE
5V TAP
ERROR
GND
2
6
5
4
182KΩ
ERROR
AMPLIFIER
SHUT
DOWN
330KΩ
FROM CMOS
OR TTL
3
1.5 µF
60mV
60KΩ
ERROR
DETECTION
COMPARATOR
TO CMOS
OR TTL
1.23
REF
FOR UTC M2951
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
SYMBOL
Vcc
VALUE
UNIT
V
V
V
V
°C
°C
-0.3~+18
-1.5~+18
-0.3~+18
-0.3~+18
-65~+150
-40~+125
Feedback Voltage
Shutdown Voltage
Comparator Output Voltage
Storage Temperature
Vfeedback
Vshutdown
Vco
Tstr
Tj
Operating Junction Temperature
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R102-004,D
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(Tested at Tj=25°C, VIN=6V, IL=100µA and CL=1µF, unless otherwise specified)
PARAMETER
PART NUMBER
UTC M2950-2.5
UTC M2950-3.0
UTC M2950-3.3
UTC M2950-3.6
UTC M2950-5.0
UTC M2951
TEST CONDITION
TJ=25°C
UNIT
V
MIN.
2.45
2.94
3.23
3.53
4.90
TYP.
2.5
3.0
3.3
3.6
5.0
MAX.
2.55
3.06
3.36
3.67
5.10
Output Voltage
(note 1)
UTC M2950-2.5
UTC M2950-3.0
UTC M2950-3.3
UTC M2950-3.6
UTC M2950-5.0
UTC M2951
UTC M2950-2.5
UTC M2950-3.0
UTC M2950-3.3
UTC M2950-3.6
UTC M2950-5.0
UTC M2951
-25°C<=TJ<=<=+85°C
2.45
2.94
3.23
3.53
4.90
2.5
3.0
3.3
3.6
5.0
2.55
3.06
3.36
3.67
5.10
V
V
(note 1)
100µA<=IL<=250 mA
Tj<=Tj(max)
Output Voltage
2.45
2.94
3.23
3.53
4.90
2.5
3.0
3.3
3.6
5.0
2.55
3.06
3.36
3.67
5.10
(note 1)
Output Voltage
20
100
ppm/°C
Temperature Coefficient
Line Regulation
Load Regulation
Dropout Voltage
6V<=VIN<=18V
100µA<=IL<=250 mA
IL=100µA
IL=250mA (note 2)
IL=100µA
IL=250mA
VIN=4.5V,IL=100µA
Vout=0
CL=1µF
0.03
0.04
50
380
75
8
110
160
260
0.1
0.1
80
450
120
12
170
200
280
0.2
0.2
150
600
140
22
200
300
430
%
%
mV
µA
mA
µA
mA
µV
Ground Current
Dropout Ground Current
Current Limit
Output Noise 10Hz to
100KHz
CL=200µF
CL=3.3µF
160
100
(Bypass=0.01µF
pins 7 to (UTC M2951))
For M2951 8-Pin version only
Reference Voltage
Reference Voltage
Feedback pin Bias
Current
Reference Voltage
Temperature Coefficient
Feedback Bias Current
temperature Coefficient
1.22
1.19
1.235
20
1.25
1.27
40
V
V
nA
(Note 4)
50
ppm/°C
nA/°C
0.1
Error Comparator
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R102-004,D
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
PARAMETER
Output Leakage Current
Output Low Voltage
PART NUMBER
TEST CONDITION
VOH=18V
VIN=4.5V
IOL=400µA
UNIT
µA
mV
MIN.
TYP.
MAX.
1
250
Upper Threshold
Voltage
Lower Threshold
Voltage
Hysteresis
Shutdown Input
(Note 3)
(Note 3)
(Note 3)
3.2
%VO
%VO
mV
7.6
15
1.3
30
Input Logic Voltage
V
Low(Regulator ON)
High(Regulator OFF)
Vshutdown=2.4V
0.70
50
2.0
Shutdown Pin Input
Current
µA
Vshutdown=18V
450
3
600
10
µA
µA
Regulator Output
Current Shutdown
Vshutdown>=2V,VIN<=18V,
Vout=0,
Feedback pin tied to 5V Tap.
Note 1: Additional conditions for 8-pin versions are feedback tied to 5V Tap an Output tied to Output Sense
(Vout=5V) and Vshutdown<=0.8V.
Note 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.
Note 3:Comparator thresholds are expressed in terms of percentage value of voltage output.
Note 4:Vref≤Vout≤(Vin-1V), 2.3V≤Vin≤30V, 100µA≤IL≤250mA, TJ≤TJMAX
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R102-004,D
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT (10 Ampere Low Dropout Regulator)
C
U R R E N T
L IM IT
S E C T IO
N
+ V IN = V o u t+ 0 . 5 V
0 . 0 5 Ω
6 8 0 Ω
2 N 3 9 0 6
U T C
D 6 5 H 0
4 7 0 Ω
8
4 . 7 M
Ω
+ V IN
+ V
O
U
T
2 5 0 m
A
1 0 k Ω
5
E R R O
R
U T C M 2 9 5 1
S D
R 1
1 0 0 µ F
3
7
4 .7 µ F
F B
V o u t
1 %
2 2 0 Ω
G
N D
4
R 2
2 0 k Ω
1
4 7 Ω
0 . 0 3 3 µ F
V o u t = 1 . 2 3 V * ( 1 + R 1 /R 2 )
F o r 5 V o u tp u t u s e in t e r n a l r e s is t o r s . W ir e p in
6
t o
7
a n d w ir e p in to + V o u t
2
Fig.2
UTC M2950-2.5
UTC M2950-3.0
UTC M2950-3.3
UTC M2950-3.6
UTC M2950-5.0
Vin
Vout
Fig.3
UTC UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R102-004,D
UTC M2950/2951 LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
Fig. 6 Dropout Voltage
Fig.5 Input Current
Fig.4 Dropout Characteristics
6
5
4
3
2
1
0
300
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150
600
500
RL=20Ω
IL=250mA
RL=50kΩ
RL=20Ω
400
300
IL=100µA
100
50
0
0
1
2
3
4
5
6
7
8
9 10 11 12
-75 -50 -25
0
25
50 75
100 125 150
0
1
2
3
4
5
6
INPUT VOLTAGE(V)
INPUT VOLTAGE(V)
TEMPERATURE(°C)
Fig. 7 Ground Pin Current
Fig. 8 Ground Pin Current
Fig. 9 Shutdown Threshold Voltage
10
9
1.8
120
110
100
90
1.6
1.4
1.2
V IN=6V
VIN=6V
IL=250mA
8
IL=100µA
80
70
1.0
7
6
60
0.8
0.6
50
-75 -50 -25
0
25
50 75
100 125 150
-75 -50 -25
0
25
50 75
100 125 150
-75 -50 -25
0
25
50 75
100 125 150
TEMPERATURE(°C)
TEMPERATURE(°C)
TEMPERATURE(°C)
Fig. 10 Short Circuit Current
Fig. 11 Dropout Voltage
500
300
290
400
300
200
280
270
260
250
240
100
0
230
200
150
OUTPUT CURRENT(mA)
100
250
-75 -50 -25
0
25
50 75
100 125 150
TEMPERATURE(°C)
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.
UTC UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R102-004,D
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