L4931CXX50 STMicroelectronics, L4931CXX50 Datasheet

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L4931CXX50

Manufacturer Part Number
L4931CXX50
Description
VERY LOW DROP VOLTAGE REGULATOR WITH INHIBIT
Manufacturer
STMicroelectronics
Datasheet

Specifications of L4931CXX50

Automotive Grade Product
2.7 V, 3.3 V, 3.5 V VOUT only in SO-8 package
Supply Voltage Rejection
70db typ. for 5V version
Temperature Range
-40 to 125°C
Features
Description
The L4931ABxx L4931Cxx 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 (0.4 V) and the very low
quiescent current make them particularly suitable
for low noise, low power applications and
specially in battery powered systems.
A TTL compatible shutdown logic control function
is available in PPAK and SO-8 packages.
Table 1.
August 2008
Very low dropout voltage (0.4 V)
Very low quiescent current
(Typ. 50 µA in off mode, 600 µA in on mode)
Output current up to 250 mA
Logic-controlled electronic shutdown
Output voltages of 2.7; 3.3; 3.5; 5; 8; 12 V
Automotive Grade product: 2.7 V, 3.3 V, 3.5 V
V
Internal current and thermal limit
Only 2.2 µF for stability
Available in ± 1 % (AB) or 2 % (C) selection at
25 °C
Supply voltage rejection: 70 dB typ. for 5 V
version
Temperature range: -40 to 125 °C
OUT
L4931ABXX27
L4931ABXX33
L4931CXX27
only in SO-8 package
Device summary
L4931ABXX35
L4931CXX33
L4931CXX35
Very low drop voltage regulators with inhibit
Part numbers
Rev 17
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.
The L4931 is available as Automotive Grade in
SO-8 package only, for the options of output
voltages whose commercial Part Numbers are
shown in the
These devices are qualified according to the
specification AEC-Q100 of the Automotive
market, in the temperature range -40 °C to
125 °C, and the statistical tests PAT, SYL, SBL are
performed.
L4931ABXX50
L4931ABXX80
L4931CXX50
PPAK
TO-220
Table 19 on page 34
DPAK
L4931ABxx
L4931Cxx
L4931ABXX120
L4931CXX120
L4931CXX80
(order codes).
TO-92
SO-8
www.st.com
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L4931CXX50 Summary of contents

Page 1

... These devices are qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 °C to 125 °C, and the statistical tests PAT, SYL, SBL are performed. Part numbers L4931CXX33 L4931ABXX50 L4931ABXX35 L4931CXX50 L4931CXX35 L4931ABXX80 Rev 17 L4931ABxx L4931Cxx TO-92 TO-220 DPAK Table 19 on page 34 (order codes) ...

Page 2

Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

List of figures Figure 1. Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

... Electrical characteristics of L4931Cxx33-TRY (Automotive Grade Table 10. Electrical characteristics of L4931ABxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 11. Electrical characteristics of L4931ABxx35-TRY (Automotive Grade Table 12. Electrical characteristics of L4931Cxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 13. Electrical characteristics of L4931ABxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 14. Electrical characteristics of L4931Cxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 15. Electrical characteristics of L4931ABxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 16. Electrical characteristics of L4931Cxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 17. Electrical characteristics of L4931ABxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 18. Electrical characteristics of L4931Cxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 19. ...

Page 5

Diagram Figure 1. Schematic diagram 5/36 ...

Page 6

Pin configuration Figure 2. Pin connections (top view) TO-220 PPAK 6/36 SO-8 DPAK PIN OUT PIN 2 = GND PIN BOTTOM VIEW TO-92 ...

Page 7

Maximum ratings Table 2. Absolute maximum ratings Symbol V DC Input voltage I I Output current O P Power dissipation D T Storage temperature range STG T Operating junction temperature range OP Note: Absolute maximum ratings are those values ...

Page 8

Application circuit Figure 3. Test circuit 8/36 ...

Page 9

Electrical characteristics Table 4. Electrical characteristics of L4931ABxx27 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I ...

Page 10

Table 5. Electrical characteristics of L4931Cxx27 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 11

Table 6. Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) (refer to the test circuits - 5° Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit out V Line regulation ...

Page 12

Table 7. Electrical characteristics of L4931ABxx33 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 13

Table 8. Electrical characteristics of L4931Cxx33 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 14

Table 9. Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) (refer to the test circuits -40 to 125 ° Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit out V Line regulation ...

Page 15

Table 10. Electrical characteristics of L4931ABxx35 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 16

Table 11. Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) (refer to the test circuits -40 to 125 ° Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit out V Line regulation ...

Page 17

Table 12. Electrical characteristics of L4931Cxx35 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 18

Table 13. Electrical characteristics of L4931ABxx50 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 19

... Table 14. Electrical characteristics of L4931Cxx50 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit out V Line regulation O (1) V Load regulation O Quiescent current ON MODE I d OFF MODE SVR Supply voltage rejection ...

Page 20

Table 15. Electrical characteristics of L4931ABxx80 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 21

Table 16. Electrical characteristics of L4931Cxx80 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 22

Table 17. Electrical characteristics of L4931ABxx120 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 23

Table 18. Electrical characteristics of L4931Cxx120 (refer to the test circuits 0.1 µ 2.2 µF unless otherwise specified Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit ...

Page 24

Typical application Figure 4. Line regulation vs temperature Figure 6. Supply current vs input voltage Figure 8. Short circuit current vs dropout voltage 24/36 Figure 5. Dropout voltage vs temperature Figure 7. Supply current vs temperature Figure 9. SVR ...

Page 25

Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...

Page 26

Dim. Min. A 4.40 C 1. 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2 13.0 L5 2.65 L6 15.25 L7 6.2 L9 3.5 DIA. 3.75 26/36 TO-220 mechanical data ...

Page 27

TO-92 mechanical data mm. Dim. Min. Typ. A 4.32 b 0.36 D 4.45 E 3.30 e 2.41 e1 1.14 L 12.7 R 2.16 S1 0.92 W 0.41 5° mils. Max. Min. Typ. 4.95 170.1 0.51 14.2 4.95 175.2 3.94 129.9 ...

Page 28

Dim. Min. A 2.2 A1 0.9 A2 0.03 B 0.4 B2 5.2 C 0. 4.9 G1 2. 28/36 PPAK mechanical data mm. ...

Page 29

DPAK mechanical data mm. Dim. Min. Typ. A 2.2 A1 0.9 A2 0.03 B 0.64 b4 5.2 C 0. 5.1 E 6.4 E1 4.7 e 2.28 e1 4 (L1) 2.8 L2 ...

Page 30

Dim. Min. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 30/36 SO-8 mechanical data mm. Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 1.27 ...

Page 31

Tape & reel DPAK-PPAK mechanical data mm. Dim. Min. Typ 12.8 13 6.80 6.90 Bo 10.40 10.50 Ko 2.55 2.65 Po 3.9 4.0 P 7.9 8.0 inch. Max. Min. Typ. 330 13.2 ...

Page 32

Tape & reel SO-8 mechanical data Dim. Min 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 32/36 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 ...

Page 33

Tape & reel for TO-92 mechanical data mm. Dim. Min. Typ. A1 4.80 T 3.80 T1 1.60 T2 2.30 d 0.48 P0 12.5 P2 5.65 F1, F2 2.44 2.54 delta H W 17.5 18.00 W0 5.7 W1 8.5 W2 0.50 ...

Page 34

Order codes Table 19. Order codes TO-220 SO-8 L4931CD27-TR L4931CD27-TRY L4931CD33-TR L4931ABV33 L4931ABD33-TR L4931CD33-TRY L4931CD35-TR L4931ABD35-TR L4931ABD35-TRY L4931CD50-TR L4931ABD50-TR L4931CD80-TR L4931CD120-TR L4931ABD120TR 1. Automotive Grade products. 34/36 Packages PPAK DPAK (1) L4931ABPT27TR L4931CPT33-TR L4931CDT33-TR L4931ABDT33-TR (1) L4931CDT35-TR L4931ABDT35TR (1) ...

Page 35

Revision history Table 20. Document revision history Date Revision 21-Jun-2004 11 14-Jun-2006 12 31-Jan-2008 13 20-Feb-2008 14 11-Mar-2008 15 15-Jul-2008 16 18-Aug-2008 17 Changes Document updating. Order codes updated. Added: Table 1 and new order codes for Automotive grade ...

Page 36

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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