UTC LM2954-50-T92-R 300 ma low-dropout voltage regulator Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LM2954
LINEAR INTEGRATED CIRCUIT
300 mA LOW-DROPOUT
VOLTAGE REGULATOR
1
1
DESCRIPTION
SOT-223
The UTC LM2954 is a monolithic integrated voltage regulator
with low dropout voltage, and low quiescent current. It includes
many features that suitable for different applications with TO-92,
DIP-8, SOP-8 and SOT-223 packages.
FEATURES
TO-92
SOP- 8
*High accuracy fixed output.
*Output voltage programmable and Logic controlled shutdown and
error flag available for DIP and SOP package.
*Extremely low quiescent current and dropout voltage.
*Extremely tight load and line regulation.
*Current and thermal limiting.
*Very low temperature coefficient.
DIP-8
*Pb-free plating product number: LM2954L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
LM2954-xx-AA3-R
LM2954L-xx-AA3-R
LM2954-xx-D08-T
LM2954L-xx-D08-T
LM2954-xx-S08-R
LM2954L-xx-S08-R
LM2954-xx-S08-T
LM2954L-xx-S08-T
LM2954-xx-T92-B
LM2954L-xx-T92-B
LM2954-xx-T92-K
LM2954L-xx-T92-K
Package
SOT-223
DIP-8
SOP-8
SOP-8
TO-92
TO-92
Pin assignment
1
2
3
I
G
O
refer to Pin
Configurations
O
O
G
G
I
I
Packing
Tape Reel
Tube
Tape Reel
Tube
Tape Box
Bulk
Note: 1. Pin assignment: I:Vin O:Vout G:Ground
2.xx: Output Voltage
LM2954L-xx-AA3-R
(1)Packing Type
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube
(2)Package Type
(2) AA3: SOT-223, D08: DIP-08, S08: SOP-8,
T 92: TO-92
(3)Output Voltage Code
(4)Lead Plating
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Copyright © 2005 Unisonic Technologies Co., Ltd
(3) xx: 3.3V:33, 5.0V:50, ADJ:AD
(4) L: Lead Free Plating, Blank: Pb/Sn
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LM2954
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-223
33:3.3V
50:5.0V
MARKING
LM2954
LEAD
PLATING
VOLTAGE
CODE
DATE
CODE
1
2
3
UTC
3.3:3.3V
5.0:5.0V
TO-92
LM2954
VOLTAGE
CODE
LEAD
PLATING
DATA CODE
1
UTC
3.3:3.3V
5.0:5.0V
DATA CODE
2954
LEAD PLATING
VOLTAGE CODE
SOP-8/DIP-8
UTC
ADJ
DATA CODE
LM 2954
LEAD PLATING
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LM2954
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
UTC LM2954
1
2
3
OUTPUT
INPUT
GND
TO-92 Plastic Package Bottom View
UTC LM2954
INPUT
GND
OUTPUT
SOT-223 Package
OUTPUT
1
8
INPUT
SENSE
2
7
FEEDBACK
3
6
5V TAP
4
5
ERROR
UTC LM2954
SHUTDOWN
GND
SOP-8 or DIP-8 Package
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LM2954
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
UNREGULATED
DC
FEEDBACK
INPUT
5V 150mA
MAX.
OUTPUT
SENSE
182kΩ
FROM CMOS
OR TTL
ERROR
AMPLIFIER
SHUT
DOWN
60mV
5V TAP
330KΩ
1.5 µF
60kΩ
ERROR
1.23
REF
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ERROR
DETECTION
COMPARATOR
TO CMOS
OR TTL
GND
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LM2954
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
VCC
-0.3 ~ +30
V
Feedback Voltage
VFB
-1.5 ~ +30
V
Shutdown Voltage
VSHDN
-0.3 ~ +30
V
Comparator Output Voltage
VOUT
-0.3 ~ +30
V
Junction Temperature
TJ
+125
°C
Operating Temperature
TOPR
-20 ~ +85
°C
Storage temperature
TSTG
-40 ~ +150
°C
Note: 1.Absolute maximum ratings are those values beyond which the device which the device could be permanently
damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2.The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range
and assured by design from -20℃~+85℃, characteristic and correlation with static process control.
ELECTRICAL CHARACTERISTICS(TJ=25°C, VIN=6V, IL=100µA, CL=1µF, unless otherwise specified)
PARAMETER
LM2954-3.3
Output Voltage
LM2954-5.0
Output Voltage Temperature Coefficient
Line Regulation
Load Regulation
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Output Noise (10Hz to 100KHz)
LM2954-ADJ For 8-Pin Version Only
Reference Voltage
SYMBOL
VOUT
TEST CONDITIONS
TJ=25°C
TCVO
△VOUT 6V≦VIN≦30V
△VOUT 100µA≦IL≦300 mA
IL=100mA
VD
IL=200mA (note 2)
IL=100µA
IGND
IL=200mA
ID
VIN=4.5V,IL=100µA
ILIMIT
VOUT=0
CL=1µF
eN
CL=200µF
CL=3.3µF
VREF
VREF≤VOUT≤(VIN-1V),
2.3V≤VIN≤30V,
100µA≤IL≤100mA, TJ≤TJMAX
MIN.
3.23
4.90
20
TYP.
3.3
5.0
0.1
0.2
380
0.075
8
110
300
450
0.12
12
170
1.22
1.235
1.25
V
1.27
V
40
nA
Reference Voltage
VREF
Feedback Pin Bias Current
Reference Voltage Temperature
Coefficient
Feedback Bias Current Temperature
Coefficient
IB(FB)
20
TCVREF
50
ppm/°C
TCIO
0.1
nA/°C
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1.19
MAX. UNIT
3.37
V
5.10
100 ppm/°C
0.2
%
0.5
400
mV
600
0.14
mA
14
200
µA
mA
430
µV
160
100
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LM2954
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
Error Comparator
Output Leakage Current
Output Low Voltage
Upper Threshold Voltage
Lower Threshold Voltage
Hysteresis
Shutdown Input
SYMBOL
ILEAK
VOL
VTHD(UP)
VTHD(LOW)
VHYS
TEST CONDITIONS
VOH=30V
VIN=4.5V, IOL=400µA
(Note 3)
(Note 3)
(Note 3)
MIN.
TYP.
MAX.
UNIT
1
250
µA
mV
%VOUT
%VOUT
mV
3.2
7.6
15
Low (Regulator ON)
1.3
0.70
High (Regulator OFF)
2.0
VSHDN=2.4V
30
50
Shutdown Pin Input Current
II(SHDN)
VSHDN=30V
450
600
VSHDN≧2V,VIN≦30V, VOUT=0,
Regulator Output Current Shutdown
IO(SHDN)
3
10
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 VSHDN≦0.8V.
Note 2: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV
its nominal value measured at 1V differential.
Note 3: Comparator thresholds are expressed in terms of percentage value of voltage output.
Input Logic Voltage
VI(LOG)
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V
µA
µA
µA
below
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LM2954
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT (10A Low Dropout Regulator)
For 8 Pins
CURRENT LIMIT
SECTION
+VIN=VOUT+0.5V
0.05Ω
680Ω
2N3906
UTC
D65H0
470Ω
8
+VIN
4.7MΩ
5
+VOUT 10 A
10kΩ
ERROR
R1
UTC LM2954
3
220Ω
20kΩ
100μF
SD
FB
GND
4
7
VOUT
1
1%
4.7 μF
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
For 3 Pins
VIN
UTC LM2954-3.3
UTC LM2954-5.0
1 µF
VOUT
1 µF
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.
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www.unisonic.com.tw
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