UTC M2950-3.3 250 ma low-dropout voltage regulator Datasheet

UTC M2950/2951
LINEAR INTEGRATED CIRCUIT
250 mA LOW-DROPOUT VOLTAGE
REGULATOR
1
DESCRIPTION
TO-92
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.
SOP-8
FEATURES
DIP-8
*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
1
SENSE
2
SHUTDOWN 3
GND
UTC
M2951
4
8
INPUT
7
FEEDBACK
6
5V TAP
5
ERROR
SOP-8 OR DIP-8 PACKAGE
FOR UTC M2951
OUTPUT
1
NC
2
SHUTDOWN 3
GND
8
UTC
M2950
4
INPUT
7
NC
6
NC
5
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
FEEDBACK
UNRAGULATED
DC
INPUT
7
8
OUTPUT
5V 250mA
MAX.
1
SENSE
FROM CMOS
OR TTL
SHUT
DOWN
3
182KΩ
ERROR
AMPLIFIER
60mV
5V TAP
2
6
60KΩ
ERROR
ERROR
DETECTION
COMPARATOR
1.23
REF
330KΩ
1.5 µF
5
TO CMOS
OR TTL
GND
4
FOR UTC M2951
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Feedback Voltage
Shutdown Voltage
Comparator Output Voltage
Storage Temperature
Operating Junction Temperature
UTC
SYMBOL
Vcc
Vfeedback
Vshutdown
Vco
Tstr
Tj
VALUE
-0.3~+18
-1.5~+18
-0.3~+18
-0.3~+18
-65~+150
-40~+125
UNIT
V
V
V
V
°C
°C
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
TEST CONDITION
MIN.
Output Voltage
UTC M2950-2.5
TJ=25°C
2.45
UTC M2950-3.0
2.94
UTC M2950-3.3
3.23
UTC M2950-3.6
3.53
UTC M2950-5.0
4.90
UTC M2951
(note 1)
UTC M2950-2.5
-25°C<=TJ<=<=+85°C
2.45
UTC M2950-3.0
2.94
UTC M2950-3.3
3.23
UTC M2950-3.6
3.53
UTC M2950-5.0
4.90
UTC M2951
(note 1)
Output Voltage
UTC M2950-2.5
100µA<=IL<=250 mA
2.45
UTC M2950-3.0
Tj<=Tj(max)
2.94
UTC M2950-3.3
3.23
UTC M2950-3.6
3.53
UTC M2950-5.0
4.90
UTC M2951
(note 1)
Output Voltage
20
Temperature Coefficient
Line Regulation
6V<=VIN<=18V
0.03
Load Regulation
100µA<=IL<=250 mA
0.04
Dropout Voltage
IL=100µA
50
IL=250mA (note 2)
380
Ground Current
IL=100µA
75
IL=250mA
8
Dropout Ground Current
VIN=4.5V,IL=100µA
110
Current Limit
Vout=0
160
Output Noise 10Hz to
CL=1µF
260
100KHz
CL=200µF
CL=3.3µF
(Bypass=0.01µF
pins 7 to (UTC M2951))
TYP.
2.5
3.0
3.3
3.6
5.0
MAX.
2.55
3.06
3.36
3.67
5.10
UNIT
2.5
3.0
3.3
3.6
5.0
2.55
3.06
3.36
3.67
5.10
V
2.5
3.0
3.3
3.6
5.0
2.55
3.06
3.36
3.67
5.10
V
100
ppm/°C
0.2
0.2
150
600
140
22
200
300
430
%
%
0.1
0.1
80
450
120
12
170
200
280
V
mV
µA
mA
µA
mA
µV
160
100
For M2951 8-Pin version only
Reference Voltage
Reference Voltage
Feedback pin Bias
Current
Reference Voltage
Temperature Coefficient
Feedback Bias Current
temperature Coefficient
(Note 4)
1.22
1.19
1.235
20
1.25
1.27
40
V
V
nA
50
ppm/°C
0.1
nA/°C
Error Comparator
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R102-004,D
UTC M2950/2951
PARAMETER
LINEAR INTEGRATED CIRCUIT
PART NUMBER
TEST CONDITION
Output Leakage Current
Output Low Voltage
VOH=18V
VIN=4.5V
IOL=400µA
Upper Threshold
Voltage
Lower Threshold
Voltage
Hysteresis
(Note 3)
MIN.
TYP.
MAX.
1
250
3.2
µA
mV
%VO
(Note 3)
7.6
(Note 3)
UNIT
15
%VO
mV
Shutdown Input
Input Logic Voltage
Shutdown Pin Input
Current
Regulator Output
Current Shutdown
1.3
Low(Regulator ON)
High(Regulator OFF)
Vshutdown=2.4V
Vshutdown=18V
Vshutdown>=2V,VIN<=18V,
Vout=0,
Feedback pin tied to 5V Tap.
V
0.70
2.0
30
50
µA
450
3
600
10
µA
µA
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 EN T
L IM IT
S E C T IO N
+V
IN
=V
t+ 0 .5 V
ou
0 .0 5 Ω
680Ω
2N 3906
U TC
D 65H 0
470Ω
8
4 .7 M Ω
+V
IN
E R R O R
5
U TC M 2951
3
20kΩ
220Ω
SD
FB
G N D
4
O U T
R 1
7
Vout
1
+V
10kΩ
4 .7 µ F
1%
250m
A
100µF
R 2
47Ω
0 .0 3 3 µ F
V o u t= 1 .2 3 V * ( 1 + R 1 /R 2 )
For 5V
o u tp u t u s e in te r n a l r e s is to r s .W ir e p in 6 to 7
a n d w ir e p in 2 to + V o u t
Fig.2
Vin
UTC
UTC
UTC
UTC
UTC
M2950-2.5
M2950-3.0
M2950-3.3
M2950-3.6
M2950-5.0
Vout
Fig.3
UTC
UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R102-004,D
UTC M2950/2951
LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
RL=20Ω
2
1
0
0
1
3
2
4
5
600
6
RL=20Ω
1
2
INPUT VOLTAGE(V)
Fig. 7 Ground Pin Current
3
4
5
6
DROPOUT VOLTAGE(mV)
RL=50kΩ
3
300
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150
0
INPUT CURRENT(mA)
OUTPUT VOLTAGE(V)
5
4
Fig. 6 Dropout Voltage
Fig.5 Input Current
Fig.4 Dropout Characteristics
6
7
8
INPUT VOLTAGE(V)
9 10 11
Shutdown Threshold Voltage(V)
QUIESCENT CURRENT(mA)
QUIESCENT CURRENT(µΑ)
80
70
60
50
-75
-50
-25
0
25
50
75
100 125
V IN=6V
IL=250mA
7
6
150
-75
-50
TEMPERATURE(°C)
0
25
50
75
100 125
150
-50
-25
0
25
50
75
100 125
150
1.8
1.6
1.4
1.2
1.0
0.8
0.6
-75
TEMPERATURE(°C)
-50
-25
0
25
50
75
100 125
150
TEMPERATURE(°C)
Fig. 11 Dropout Voltage
Fig. 10 Short Circuit Current
500
300
400
290
Dropout Voltage(mV)
SHORT CIRCUIT CURRENT(mA)
-25
50
Fig. 9 Shutdown Threshold Voltage
9
8
IL=100µA
100
-75
Fig. 8 Ground Pin Current
VIN=6V
IL=100µA
90
300
TEMPERATURE(°C)
10
100
400
0
12
120
110
IL=250mA
500
280
270
260
250
240
230
-75
300
200
100
0
-50
-25
0
25
50
75
TEMPERATURE(°C)
100 125
150
100
150
200
250
OUTPUT CURRENT(mA)
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
Similar pages