L79L12AC STMicroelectronics, L79L12AC Datasheet

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L79L12AC

Manufacturer Part Number
L79L12AC
Description
NEGATIVE VOLTAGE REGULATOR
Manufacturer
STMicroelectronics
Datasheet

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Features
Description
The L79Lxx series of three-terminal negative
regulators employ internal current limiting and
thermal shutdown, making them essentially
indestructible. If adequate heat-sink is provided,
they can deliver up to 100 mA output current.
They are intended as fixed voltage regulators in a
wide range of applications including local or on-
card regulation for elimination of noise and
distribution problems associated with single-point
regulation. In addition, they can be used with
Table 1.
July 2009
Output current up to 100 mA
Output voltages of -5; -6; -8; -9; -12; -15 V
Thermal overload protection
Short circuit protection
No external components are required
Available in either ±5% (AC) or ±10% (C)
selection
Device summary
L79L05AC
L79L06AC
L79L08AC
L79L05AB
L79L06AB
L79L08AB
L79L06C
L79L08C
L79L09C
Doc ID 2511 Rev 16
Part numbers
power pass elements to make high-current
voltage regulators.
The L79Lxx series used as Zener diode/resistor
combination replacement, offers an effective
output impedance improvement of typically two
orders of magnitude, along with lower quiescent
current and lower noise.
L79LxxAC - L79LxxC
Negative voltage regulators
SO-8
L79L09AC
L79L12AC
L79L15AC
L79L09AB
L79L12AB
L79L15AB
L79L12C
L79L15C
TO-92
L79LxxAB
SOT-89
www.st.com
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L79L12AC Summary of contents

Page 1

... The L79Lxx series used as Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise. Part numbers Doc ID 2511 Rev 16 L79LxxAB TO-92 SOT-89 L79L09AC L79L09AB L79L12C L79L12AC L79L12AB L79L15C L79L15AC L79L15AB 1/27 www.st.com 27 ...

Page 2

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

Page 3

Diagram Figure 1. Schematic diagram Doc ID 2511 Rev 16 3/27 ...

Page 4

Pin configuration Figure 2. Pin connection (top view, bottom view for TO-92) SO-8 Figure 3. Test circuit 4/27 SOT-89 Doc ID 2511 Rev 16 PIN 1 = GND PIN PIN OUT TO-92 ...

Page 5

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 1. Our SO-8 package used for Voltage ...

Page 6

Electrical characteristics Refer to the test circuits, T unless otherwise specified. Table 4. Electrical characteristics of L79L05 Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d ...

Page 7

Refer to the test circuits, T unless otherwise specified. Table 5. Electrical characteristics of L79L06 Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d I Quiescent current ...

Page 8

Refer to the test circuits, T unless otherwise specified. Table 6. Electrical characteristics of L79L08 Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d I Quiescent current ...

Page 9

Refer to the test circuits, T unless otherwise specified. Table 7. Electrical characteristics of L79L09 Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d I Quiescent current ...

Page 10

Refer to the test circuits, T unless otherwise specified. Table 8. Electrical characteristics of L79L12 Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d I Quiescent current ...

Page 11

Refer to the test circuits, T unless otherwise specified. Table 9. Electrical characteristics of L79L15 Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d I Quiescent current ...

Page 12

Refer to the test circuits, V for L79L05AC -40 to 125 °C for L79L05AB, unless otherwise specified. J Table 10. Electrical characteristics of L79L05AB and L79L05AC Symbol Parameter V Output voltage O V Output voltage O V Line ...

Page 13

Refer to the test circuits, V for L79L05AC -40 to 125 °C for L79L05AB, unless otherwise specified. J Table 11. Electrical characteristics of L79L06AB and L79L06AC Symbol Parameter V Output voltage O V Output voltage O V Line ...

Page 14

Refer to the test circuits, V for L79L05AC -40 to 125 °C for L79L05AB, unless otherwise specified. J Table 12. Electrical characteristics of L79L08AB and L79L08AC Symbol Parameter V Output voltage O V Output voltage O V Line ...

Page 15

Refer to the test circuits, V for L79L05AC -40 to 125 °C for L79L05AB, unless otherwise specified. J Table 13. Electrical characteristics of L79L09AB and L79L09AC Symbol Parameter V Output voltage O V Output voltage O V Line ...

Page 16

... Refer to the test circuits, V for L79L05AC -40 to 125 °C for L79L05AB, unless otherwise specified. J Table 14. Electrical characteristics of L79L12AB and L79L12AC Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation O I Quiescent current d I Quiescent current change d eN ...

Page 17

Refer to the test circuits, V for L79L05AC -40 to 125 °C for L79L05AB, unless otherwise specified. J Table 15. Electrical characteristics of L79L15AB and L79L15AC Symbol Parameter V Output voltage O V Output voltage O V Line ...

Page 18

Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ...

Page 19

SO-8 mechanical data mm. Dim. Min. Typ. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4.80 E 3.80 e 1.27 H 5.80 h 0.25 L 0.40 k ddd Max. Min. 1.75 0.053 0.25 0.04 1.65 0.043 0.51 ...

Page 20

Dim. Min. A 1.4 B 0.44 B1 0.36 C 0.35 C1 0.35 D 4.4 D1 1.62 E 2.29 e 1.42 e1 2.92 H 3.94 L 0.89 20/27 SOT-89 mechanical data mm. Typ. Max. Min. 1.6 55.1 0.56 17.3 0.48 14.2 ...

Page 21

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° Max. Min. 4.95 170.1 0.51 14.2 4.95 175.2 3.94 129.9 2.67 94.9 ...

Page 22

Tape & reel SO-8 mechanical data Dim. Min 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 22/27 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 ...

Page 23

Tape & reel SOT-89 mechanical data mm. Dim. Min. Typ 12.8 13 4.70 4.80 Bo 4.30 4.40 Ko 1.70 1.80 Po 3.9 4.0 P 7.9 8.0 Max. Min. 180 13.2 0.504 0.795 ...

Page 24

Tape & reel for TO-92 mechanical data Dim. Min 12.5 P2 5.65 F1, F2 2.44 delta H W 17.5 W0 5 15. 3 delta P ...

Page 25

... Packaging (1) TO92 (BAG) SOT-89 L79L05ACZ L79L05ACUTR L79L05ABZ L79L05ABUTR L79L06ACZ L79L06ABZ L79L06ABUTR L79L08ACZ L79L08ACUTR (2) L79L08ABZ L79L08ABUTR L79L09ACZ L79L09ACUTR (2) L79L09ABZ L79L09ABUTR L79L12ACZ L79L12ACUTR (2) L79L12ABZ L79L12ABUTR L79L15ACUTR (2) L79L15ABZ Doc ID 2511 Rev 16 Output voltage - ( ( (2) ...

Page 26

Revision history Table 17. Document revision history Date Revision 14-Mar-2005 9 15-Mar-2005 10 23-Dec-2005 11 12-Sep-2006 12 25-Jul-2007 13 04-Dec-2007 14 14-Jul-2008 15 29-Jul-2009 16 26/27 Changes Add Tape & Reel for TO-92. Add note on Table 3. Mistake ...

Page 27

... 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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