l79l08ab STMicroelectronics, l79l08ab Datasheet

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l79l08ab

Manufacturer Part Number
l79l08ab
Description
Negative Voltage Regulators
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.
December 2007
Output current up to 100 mA
Output voltages of -5; -6; -8; -9; -12; -15V
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
Part number
Rev 14
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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l79l08ab Summary of contents

Page 1

... In addition, they can be used with Table 1. Device summary L79L05AC L79L05AB L79L06C L79L06AC L79L06AB L79L08C L79L08AC L79L08AB L79L09C December 2007 L79LxxAC - L79LxxC Negative voltage regulators SO-8 power pass elements to make high-current voltage regulators. The L79Lxx series used as Zener diode/resistor combination replacement, offers an effective ...

Page 2

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

Page 3

Diagram Figure 1. Schematic diagram 3/22 ...

Page 4

Pin configuration Figure 2. Pin connection (top view, bottom view for TO-92) SO-8 Figure 3. Test circuit 4/22 PIN 1 = GND PIN PIN SOT-89 TO-92 IN OUT ...

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 Table 4. Electrical characteristics of L79L05 (refer to the test circuits mA 0.33 µ Symbol Parameter V Output voltage O V Output voltage O V Line regulation O ...

Page 7

Table 5. Electrical characteristics of L79L06 (refer to the test circuits mA 0.33 µ Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation ...

Page 8

Table 7. Electrical characteristics of L79L09 (refer to the test circuits mA 0.33 µ Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation ...

Page 9

Table 9. Electrical characteristics of L79L15 (refer to the test circuits mA 0.33 µ Symbol Parameter V Output voltage O V Output voltage O V Line regulation O V Load regulation ...

Page 10

... I Quiescent current change d eN Output noise voltage SVR Supply voltage rejection V Dropout voltage d Table 12. Electrical characteristics of L79L08AB and L79L08AC (refer to the test circuits mA -40 to 125 °C for L79L05AB, unless otherwise specified) J Symbol Parameter V Output voltage ...

Page 11

Table 13. Electrical characteristics of L79L09AB and L79L09AC (refer to the test circuits mA -40 to 125 °C for L79L05AB, unless otherwise specified) J Symbol Parameter V ...

Page 12

Table 15. Electrical characteristics of L79L15AB and L79L15AC (refer to the test circuits mA -40 to 125 °C for L79L05AB, unless otherwise specified) J Symbol Parameter V ...

Page 13

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 14

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 14/22 SO-8 mechanical data mm. Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 1.27 ...

Page 15

SOT-89 mechanical data mm. Dim. Min. Typ. 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 mils. Max. Min. Typ. 1.6 55.1 0.56 17.3 0.48 ...

Page 16

Dim. Min. 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 16/22 TO-92 mechanical data mm. Typ. Max. Min. 4.95 170.1 0.51 14.2 4.95 175.2 3.94 129.9 2.67 94.9 ...

Page 17

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

Page 18

Tape & reel SOT89 mechanical data Dim. Min 12 4.70 Bo 4.30 Ko 1.70 Po 3.9 P 7.9 18/22 mm. Typ. Max. Min. 180 13.0 13.2 0.504 0.795 2.362 14.4 4.80 4.90 ...

Page 19

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 20

... Available in Ammopak with the suffix "-AP" Tape & Reel with the suffix "TR". Please note that in these cases pins are shaped according to Tape & Reel specifications. 2. Available on request. 20/22 Packaging (1) TO92 (BAG) SOT-89 L79L05ACZ L79L05ACUTR L79L05ABZ L79L05ABUTR L79L06ACZ L79L06ACUTR L79L06ABZ L79L06ABUTR L79L08ACZ L79L08ACUTR (2) L79L08ABZ L79L08ABUTR L79L09ACZ L79L09ACUTR (2) L79L09ABZ L79L09ABUTR L79L12ACZ L79L12ACUTR (2) L79L12ABZ L79L12ABUTR L79L15ACZ L79L15ACUTR (2) L79L15ABZ Output voltage - ...

Page 21

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 Changes Add Tape & Reel for TO-92. Add note on Table 3. Mistake on ordering Table in Header. ...

Page 22

... 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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