Avic AV2950 Linear integrated circuit Datasheet

@vic
AV2950/2951
LINEAR INTEGRATED CIRCUIT
100 mA LOW-DROPOUT VOLTAGE
REGULATOR
DESCRIPTION
1
TO-92
The @vic AV2950/2951 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.
QW-R102-001,G
@vic
AV2950/2951
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
UTC AV2950
1
2
3
OUTPUT
INPUT
GND
TO-92 Plastic Package
Bottom View
OUTPUT
1
SENSE
2
SHUTDOWN
3
GND
AV2951
2951
4
8
INPUT
7
FEEDBACK
6
5V TAP
5
ERROR
SOP-8 OR DIP-8 PACKAGE
FOR @vic AV2951
OUTPUT
1
NC
2
SHUTDOWN
GND
3
8
2
AV2950
4
INPUT
7
NC
6
NC
5
ERROR
SOP-8 OR DIP-8 PACKAGE
FOR @vic AV2950
Fig.1
QW-R102-001,G
@vic
AV2950/2951
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
FEEDBACK
UNRAGULATED
DC
INPUT
7
8
OUTPUT
5V 150mA
MAX.
1
SENSE
FROM CMOS
OR TTL
SHUT
DOWN
3
ERROR
AMPLIFIER
60mV
2
182kΩ
5V TAP
6
330KΩ
1.5 µF
60kΩ
ERROR
ERROR
DETECTION
COMPARATOR
1.23
REF
5
TO CMOS
OR TTL
GND
4
FOR @vic AV2951
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Feedback Voltage
Shutdown Voltage
Storage Temperature
Operating Junction Temperature
SYMBOL
Vcc
Vfeedback
Vshutdown
Tstr
Tj
VALUE
-0.3~+30
-1.5~+30
-0.3~+30
-65~+150
-40~+125
UNIT
V
V
V
°C
°C
QW-R102-001,G
@vic
AV2950/2951
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(Tested at Tj=25°C, VIN=6V, IL=100µA and CL=1µF, unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
PART NUMBER
AV2950-2.5
AV2950-3.0
AV2950-3.3
AV2950-3.6
AV2950-5.0
AV2951
AV2950-2.5
AV2950-3.0
AV2950-3.3
AV2950-3.6
AV2950-5.0
AV2951
AV2950-2.5
AV2950-3.0
AV2950-3.3
AV2950-3.6
AV2950-5.0
AV2951
Output Voltage
Temperature Coefficient
Line Regulation
Load Regulation
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Output Noise
10Hz ~ 100KHz
TEST CONDITION
TJ=25°C
(note 1)
-25°C≦TJ≦+85°C
(note 1)
100µA≦IL≦100 mA
Tj<=Tj(max)
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
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
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
UNIT
V
V
V
(note 1)
20
6V≦VIN≦30V
100µA≦IL≦100 mA
IL=100µA
IL=100mA (note 2)
IL=100µA
IL=100mA
VIN=4.5V,IL=100µA
Vout=0
CL=1µF
CL=200µF
CL=3.3µF
(Bypass=0.01µF
pins 7 to (utc2951))
0.03
0.04
50
380
75
8
110
160
100
0.1
0.1
80
450
120
12
170
200
ppm/°C
0.2
0.2
150
600
140
14
200
220
430
160
100
%
%
mV
µA
mA
µA
mA
1.25
1.27
40
V
V
nA
µV
For LP2951 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
50
ppm/°C
0.1
nA/°C
Error Comparator
Output Leakage Current
Output Low Voltage
Upper Threshold Voltage
Lower Threshold Voltage
Hysteresis
VOH=30V
VIN=4.5V, IOL=400µA
(Note 3)
(Note 3)
(Note 3)
1
250
3.2
7.6
15
µA
mV
%VO
%VO
mV
QW-R102-001,G
@vic
AV2950/2951
PARAMETER
Shutdown Input
PART NUMBER
LINEAR INTEGRATED CIRCUIT
TEST CONDITION
MIN
Regulator Output
Current Shutdown
UNIT
0.70
V
30
450
50
600
µA
µA
3
10
µA
1.3
Input Logic Voltage
Shutdown Pin Input Current
MAX
TYP
Low(Regulator ON)
High(Regulator OFF)
Vshutdown=2.4V
Vshutdown=30V
Vshutdown≧2V, VIN≦30V,
Vout=0,
Feedback pin tied to 5V Tap.
2.0
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≤100mA, TJ≤TJMAX
QW-R102-001,G
@vic
AV2950/2951
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT (10 Ampere Low Dropout Regulator)
CURRENT
LIMIT
SECTION
+VIN=Vout+0.5V
0.05Ω
680Ω
2N3906
UTC
D65H0
470Ω
8
+VIN
4.7MΩ
5
ERROR
UTC LP2951
3
220Ω
20kΩ
SD
FB
GND
4
+VOUT 100m A
10kΩ
R1
7
Vout
100µF
4.7µF
1%
R2
1
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
Fig.2
Vin
Vout
Fig.3
QW-R102-001,G
@vic
AV2950/2951
LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
RL=50kΩ
RL=50Ω
3
2
1
0
0
1
3
2
4
5
6
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0 1
600
RL=50Ω
2
INPUT VOLTAGE(V)
Fig. 7 Ground Pin Current
3 4
5 6
7 8
INPUT VOLTAGE(V)
Fig. 8 Ground Pin Current
-75 -50
QUIESCENT CURRENT(mA)
60
50
-75 -50
-25
0
25
50
75
V IN=6V
IL=100mA
6
5
4
100 125 150
-25
0
25
50
75
100 125 150
1.6
Shutdown Threshold Voltage(V)
m A)
QUIESCENT CURRENT(
70
50
1.8
7
80
IL=100µA
>
100
Fig. 9 Shutdown Threshold Voltage
100
VIN=6V
IL=100µA
300
TEMPERATURE(°C)?
8
90
400
0
9 10 11 12
120
110
IL=100mA
500
DROPOUT VOLTAGE(mV)
INPUT CURRENT(mA)
OUTPUT VOLTAGE(V)
5
4
Fig. 6 Dropout Voltage
Fig.5 Input Current
Fig.4 Dropout Characteristics
6
-75 -50
TEMPERATURE(°C)?
-25
0
25
50
75
100 125 150
1.4
1.2
1.0
0.8
0.6
-75 -50
TEMPERATURE(°C)?
-25
0
25
50
75
100 125 150
TEMPERATURE(°C)
Fig. 11 Dropout Voltage
Fig. 10 Short Circuit Current
500
400
160
150
Dropout Voltage(mV)
SHORT CIRCUIT CURRENT(mA)
170
140
130
120
110
100
-75 -50
300
200
100
0
-25
0
25
50
75
TEMPERATURE(°C)?
100 125 150
0.1
1
10
100
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.
QW-R102-001,G
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