Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsSwitching Voltage Regulator

1/29January 2004

■ VERY LOW DROPOUT VOLTAGE (0.4V)

■ VERY LOW QUIESCENT CURRENT

(TYP. 50 µA IN OFF MODE, 600µA IN ON

MODE)

■ OUTPUT CURRENT UP TO 250 mA

■ LOGIC-CONTROLLED ELECTRONIC

SHUTDOWN

■ OUTPUT VOLTAGES OF 1.25; 1.5; 2.5; 2.7;

3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 12V

■ INTERNAL CURRENT AND THERMAL LIMIT

■ ONLY 2.2µF FOR STABILITY

■ AVAILABLE IN ± 1% (AB) OR 2% (C)

SELECTION AT 25°C

■ SUPPLY VOLTAGE REJECTION: 70db TYP.

FOR 5V VERSION

■ TEMPERATURE RANGE: -40 TO 125°C

DESCRIPTION

The L4931 series are very Low Drop regulators

available in TO-220, SO-8, DPAK, PPAK and

TO-92 packages and in a wide range of output

voltages.

The very Low Drop voltage (0.4V) and the very

low quiescent current make them particularly

suitable for Low Noise, Low Power applications

and specially in battery powered systems.

In PPAK and SO-8 packages a Shutdown Logic

Control function is available TTL compatible. This

means that when the device is used as a local

regulator, it is possible to put a part of the board in

standby, decreasing the total power consumption.

It requires only a 2.2 µF capacitor for stability

allowing space and cost saving.

L4931

SERIES

VERY LOW DROP

VOLTAGE REGULATORS WITH INHIBIT

SCHEMATIC DIAGRAM

TO-220

SO-8

TO-92

DPAKPPAK

Summary of content (29 pages)

PAGE 1
L4931 SERIES VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ VERY LOW DROPOUT VOLTAGE (0.4V) VERY LOW QUIESCENT CURRENT (TYP. 50 µA IN OFF MODE, 600µA IN ON MODE) OUTPUT CURRENT UP TO 250 mA LOGIC-CONTROLLED ELECTRONIC SHUTDOWN OUTPUT VOLTAGES OF 1.25; 1.5; 2.5; 2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 12V INTERNAL CURRENT AND THERMAL LIMIT ONLY 2.2µF FOR STABILITY AVAILABLE IN ± 1% (AB) OR 2% (C) SELECTION AT 25°C SUPPLY VOLTAGE REJECTION: 70db TYP.
PAGE 2
L4931 SERIES ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit 20 V VI DC Input Voltage IO Output Current Internally Limited Internally Limited Ptot Power Dissipation Tstg Storage Temperature Range -40 to 150 °C Top Operating Junction Temperature Range -40 to 125 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
PAGE 3
L4931 SERIES ORDERING CODES TO-220 SO-8 PPAK DPAK TO-92 OUTPUT VOLTAGE L4931CV12 (*) L4931ABV12 (*) L4931CV15 (*) L4931ABV15 (*) L4931CV25 (*) L4931ABV25 (*) L4931CV27 L4931ABV27 L4931CV30 L4931ABV30 L4931CV33 L4931ABV33 L4931CV35 L4931ABV35 L4931CV40 L4931ABV40 L4931CV45 (*) L4931ABV45 (*) L4931CV47 L4931ABV47 L4931CV50 L4931ABV50 L4931CV52 (*) L4931ABV52 (*) L4931CV55 (*) L4931ABV55 (*) L4931CV60 L4931ABV60 L4931CV80 L4931ABV80 L4931CV120 L4931ABV120 L4931CD12 (*) L4931ABD12 (*) L4931CD15 (*) L4931
PAGE 4
L4931 SERIES TEST CIRCUITS ELECTRICAL CHARACTERISTICS OF L4931ABxx12 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol Parameter VO Output Voltage VI Operating Input Voltage Test Conditions IO = 5 mA VI = 3.3 V IO = 5 mA VI = 3.3 V TA=-25 to 85°C IO = 250 mA Iout Output Current Limit ∆VO Line Regulation ∆VO(*) Load Regulation VI = 2.7 V IO = 0.5 to 250 mA Quiescent Current ON MODE VI = 2.7 to 20 V IO = 0 mA VI = 2.
PAGE 5
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx12 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 3.3 V IO = 5 mA VI = 3.3 V TA=-25 to 85°C IO = 250 mA Min. Typ. Max. Unit 1.225 1.25 1.275 V 1.2 1.3 2.5 20 300 V mA ∆VO Line Regulation VI = 2.5 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 2.
PAGE 6
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx15 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 3.5 V IO = 5 mA VI = 3.5 V TA=-25 to 85°C IO = 250 mA Min. Typ. Max. Unit 1.47 1.5 1.53 V 1.44 1.56 2.5 20 300 V mA ∆VO Line Regulation VI = 2.5 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 2.
PAGE 7
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx25 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 4.5 V IO = 5 mA VI = 4.5 V TA=-25 to 85°C Min. Typ. Max. Unit 2.45 2.5 2.55 V 2.4 2.6 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 3.3 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 3.5 V IO = 0.
PAGE 8
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx27 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). . Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 4.7 V IO = 5 mA VI = 4.7 V TA=-25 to 85°C Min. Typ. 2.646 2.7 2.592 Max. Unit 2.754 V 2.808 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 3.4 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 3.
PAGE 9
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx30 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 5 V IO = 5 mA VI = 5 V TA=-25 to 85°C Min. Typ. 2.94 3 2.88 Max. Unit 3.06 V 3.12 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 3.8 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 4 V IO = 0.
PAGE 10
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx33 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 5.3 V IO = 5 mA VI = 5.3 V TA=-25 to 85°C Min. Typ. 3.234 3.3 3.168 Max. Unit 3.366 V 3.432 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 4.1 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 4.
PAGE 11
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx35 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 5.5 V IO = 5 mA VI = 5.5 V TA=-25 to 85°C Min. Typ. Max. Unit 3.43 3.5 3.57 V 3.36 3.64 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 4.3 to 20 V IO = 0.5 mA 3 18 mV ∆VO(*) Load Regulation VI = 4.5 V IO = 0.
PAGE 12
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx40 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 6 V IO = 5 mA VI = 6 V TA=-25 to 85°C 4 3.84 Unit 4.08 V 4.16 20 Line Regulation VI = 4.8 to 20 V IO = 0.5 mA Load Regulation VI = 5 V IO = 0.
PAGE 13
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx45 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 6.5 V IO = 5 mA VI = 6.5 V TA=-25 to 85°C Unit 4.41 4.5 4.59 V 4.32 4.68 20 Line Regulation VI = 5.3 to 20 V IO = 0.5 mA Load Regulation VI = 5.5 V IO = 0.5 to 250 mA Quiescent Current ON MODE VI = 5.
PAGE 14
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx47 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 6.7 V IO = 5 mA VI = 6.7 V TA=-25 to 85°C 4.7 4.512 Unit 4.794 V 4.888 20 Line Regulation VI = 5.5 to 20 V IO = 0.5 mA Load Regulation VI = 5.7 V IO = 0.5 to 250 mA Quiescent Current ON MODE VI = 5.
PAGE 15
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx50 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 7 V IO = 5 mA VI = 7 V TA=-25 to 85°C 5 4.8 Unit 5.1 V 5.2 20 Line Regulation VI = 5.8 to 20 V IO = 0.5 mA Load Regulation VI = 6 V IO = 0.
PAGE 16
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx52 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 7.2 V IO = 5 mA VI = 7.2 V TA=-25 to 85°C 5.2 4.992 Unit 5.304 V 5.408 20 Line Regulation VI = 6 to 20 V IO = 0.5 mA Load Regulation VI = 6.2 V IO = 0.5 to 250 mA Quiescent Current ON MODE VI = 6.
PAGE 17
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx55 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 7.5 V IO = 5 mA VI = 7.5 V TA=-25 to 85°C Unit 5.39 5.5 5.61 V 5.28 5.72 20 Line Regulation VI = 6.3 to 20 V IO = 0.5 mA Load Regulation VI = 6.5 V IO = 0.5 to 250 mA Quiescent Current ON MODE VI = 6.
PAGE 18
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx60 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 8 V IO = 5 mA VI = 8 V TA=-25 to 85°C Min. Typ. 5.88 6 5.76 Max. Unit 6.12 V 6.24 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 6.8 to 20 V IO = 0.5 mA 4 24 mV ∆VO(*) Load Regulation VI = 7 V IO = 0.
PAGE 19
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx80 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 10 V IO = 5 mA VI = 10 V TA=-25 to 85°C Min. Typ. 7.84 8 7.68 Max. Unit 8.16 V 8.32 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 8.9 to 20 V IO = 0.5 mA 4 24 mV ∆VO(*) Load Regulation VI = 9.1 V IO = 0.
PAGE 20
L4931 SERIES ELECTRICAL CHARACTERISTICS OF L4931Cxx120 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, C O = 2.2 µF unless otherwise specified). Symbol VO Parameter Output Voltage VI Operating Input Voltage Iout Output Current Limit Test Conditions IO = 5 mA VI = 14 V IO = 5 mA VI = 14 V TA=-25 to 85°C Min. Typ. 11.76 12 11.52 Max. Unit 12.24 V 12.48 IO = 250 mA 20 300 V mA ∆VO Line Regulation VI = 12.9 to 20 V IO = 0.5 mA 4 24 mV ∆VO(*) Load Regulation VI = 13.
PAGE 21
L4931 SERIES Figure 1 : Supply Current vs Output Current Figure 4 : Supply Current vs Temperature Figure 2 : Dropout Voltage vs Temperature Figure 5 : Short Circuit Current vs Dropout Voltage Figure 3 : Supply Current vs Input Voltage Figure 6 : S.V.R.
PAGE 22
L4931 SERIES TO-220 MECHANICAL DATA DIM. mm. MIN. TYP inch MAX. MIN. TYP. MAX. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 D1 1.27 0.050 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 0.409 L2 16.4 0.645 L4 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.
PAGE 23
L4931 SERIES TO-92 MECHANICA DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.
PAGE 24
L4931 SERIES SO-8 MECHANICAL DATA DIM. mm. MIN. TYP inch MAX. MIN. TYP. MAX. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8˚ (max.) 0.1 0.
PAGE 25
L4931 SERIES DPAK MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 2.2 2.4 0.086 A1 0.9 1.1 0.035 0.094 0.043 A2 0.03 0.23 0.001 0.009 B 0.64 0.9 0.025 0.035 B2 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 D1 E 5.1 6.4 0.244 0.200 6.6 0.252 0.260 E1 4.7 0.185 e 2.28 0.090 e1 4.4 4.6 0.173 0.181 H 9.35 10.1 0.368 0.397 L (L1) L2 L4 1 0.039 2.8 0.110 0.8 0.6 0.031 1 0.023 0.
PAGE 26
L4931 SERIES PPAK MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.4 0.6 0.015 0.023 B2 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 E 6.4 6.6 0.252 0.260 G 4.9 5.25 0.193 0.206 G1 2.38 2.7 0.093 0.106 H 9.35 10.1 0.368 0.397 L2 L4 0.8 0.6 0.031 1 0.023 0.
PAGE 27
L4931 SERIES Tape & Reel DPAK-PPAK MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 330 13.0 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 MAX. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.
PAGE 28
L4931 SERIES Tape & Reel SO-8 MECHANICAL DATA mm. inch DIM. MIN. A MAX. MIN. 330 13.2 TYP. MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 28/29 TYP 0.504 22.4 0.519 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 0.232 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
PAGE 29
L4931 SERIES Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice.