Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsNegative Voltage Regulator

1/17December 2005

■ 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%

DESCRIPTION

The L79L00 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

power pass elements to make high-current

voltage regulators.

The L79L00 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.

L79L00

SERIES

NEGATIVE VOLTAGE REGULATORS

Figure 1: Schematic Diagram

SO-8 SOT-89

TO-92

Rev. 11

Summary of content (17 pages)

PAGE 1
L79L00 SERIES NEGATIVE VOLTAGE REGULATORS ■ ■ ■ ■ ■ ■ 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 DESCRIPTION The L79L00 series of three-terminal negative regulators employ internal current limiting and thermal shutdown, making them essentially indestructible.
PAGE 2
L79L00 SERIES Table 1: Absolute Maximum Ratings Symbol VI IO Parameter DC Input Voltage Value VO = -5 to -9 V -30 VO = -12 to -15 V -35 Output Current Unit V 100 Ptot Power Dissipation Tstg Storage Temperature Range Top Operating Junction Temperature Range mA Internally Limited (*) -40 to 150 For L79L00C, L79L00AC For L79L00AB °C 0 to 125 °C -40 to 125 °C (*) Our SO-8 package used for Voltage Regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the die
PAGE 3
L79L00 SERIES Table 3: Order Codes TYPE SO-8 (TUBE)* TO-92 (BAG)** L79L05C L79L05AC L79L05AB L79L06C L79L06AC L79L06AB L79L08C L79L08AC L79L08AB L79L09C L79L09AC L79L09AB L79L12C L79L12AC L79L12AB L79L15C L79L15AC L79L15AB L79L05CD L79L05ACD L79L05ABD L79L06CD L79L06ACD L79L06ABD L79L08CD L79L08ACD L79L08ABD L79L09CD L79L09ACD L79L09ABD L79L12CD L79L12ACD L79L12ABD L79L15CD L79L15ACD L79L15ABD L79L05CZ L79L05ACZ L79L05ABZ L79L06CZ L79L06ACZ L79L06ABZ L79L08CZ L79L08ACZ L79L08ABZ L79L09CZ L79L09ACZ L79L
PAGE 4
L79L00 SERIES Table 4: Electrical Characteristics Of L79L05 (refer to the test circuits, TJ = 0 to 125°C, VI = -10V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified). Symbol Parameter Test Conditions Min. Typ. -4.6 -5 Max. Unit VO Output Voltage TJ = 25°C -5.4 V VO Output Voltage IO = 1 to 40 mA VI = -7 to -20 V -4.5 -5.5 V IO = 1 to 70 mA VI = -10 V -4.5 -5.
PAGE 5
L79L00 SERIES Table 6: Electrical Characteristics Of L79L08 (refer to the test circuits, TJ = 0 to 125°C, VI = -14V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified). Symbol Parameter Test Conditions Min. Typ. Max. Unit -7.36 -8 VO Output Voltage TJ = 25°C -8.64 V VO Output Voltage IO = 1 to 40 mA VI = -10.5 to -23 V -7.2 -8.8 V IO = 1 to 70 mA VI = -14 V -7.2 -8.8 ∆VO Line Regulation VI = -10.
PAGE 6
L79L00 SERIES Table 8: Electrical Characteristics Of L79L12 (refer to the test circuits, TJ = 0 to 125°C, VI = -19V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified). Symbol Parameter Test Conditions Min. Typ. Max. Unit -11.1 -12 VO Output Voltage TJ = 25°C -12.9 V VO Output Voltage IO = 1 to 40 mA VI = -14.5 to -27 V -10.8 -13.2 V IO = 1 to 70 mA VI = -19 V -10.8 -13.2 ∆VO Line Regulation VI = -14.
PAGE 7
L79L00 SERIES Table 10: Electrical Characteristics Of L79L05AB And L79L05AC (refer to the test circuits, VI = -10V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L79L05AC, TJ = -40 to 125°C for L79L05AB, unless otherwise specified). Symbol Parameter VO Output Voltage VO Output Voltage ∆VO ∆VO Id ∆Id eN SVR Vd Line Regulation Load Regulation Quiescent Current Quiescent Current Change Test Conditions TJ = 25°C Min. Typ. Max. Unit -4.8 -5 -5.
PAGE 8
L79L00 SERIES Table 12: Electrical Characteristics Of L79L08AB And L79L08AC (refer to the test circuits, VI = -14V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L79L08AC, TJ = -40 to 125°C for L79L08AB, unless otherwise specified). Symbol Parameter Test Conditions Min. Typ. Max. Unit -7.68 -8 VO Output Voltage TJ = 25°C -8.32 V VO Output Voltage IO = 1 to 40 mA VI = -10.5 to -23 V -7.6 -8.4 V IO = 1 to 70 mA VI = -14 V -7.6 -8.4 ∆VO Line Regulation VI = -10.
PAGE 9
L79L00 SERIES Table 14: Electrical Characteristics Of L79L12AB And L79L12AC (refer to the test circuits, VI = -19V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L79L12AC, TJ = -40 to 125°C for L79L12AB, unless otherwise specified). Symbol Parameter Test Conditions Min. Typ. Max. Unit -11.5 -12 -12.5 V -11.4 -12.6 V -11.4 -12.6 VO Output Voltage TJ = 25°C VO Output Voltage IO = 1 to 40 mA VI = -14.5 to -27 V IO = 1 to 70 mA VI = -19 V ∆VO Line Regulation VI = -14.
PAGE 10
L79L00 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 11
L79L00 SERIES SOT-89 MECHANICAL DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 1.4 1.6 55.1 63.0 B 0.44 0.56 17.3 22.0 B1 0.36 0.48 14.2 18.9 C 0.35 0.44 13.8 17.3 C1 0.35 0.44 13.8 17.3 D 4.4 4.6 173.2 181.1 D1 1.62 1.83 63.8 72.0 E 2.29 2.6 90.2 102.4 e 1.42 1.57 55.9 61.8 e1 2.92 3.07 115.0 120.9 H 3.94 4.25 155.1 167.3 L 0.89 1.2 35.0 47.
PAGE 12
L79L00 SERIES TO-92 MECHANICAL 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 13
L79L00 SERIES Tape & Reel SO-8 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 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 14
L79L00 SERIES Tape & Reel SOT89 MECHANICAL DATA mm. inch DIM. MIN. TYP A MIN. TYP. 180 13.0 13.2 MAX. 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 14/17 MAX. 0.504 0.512 14.4 0.519 0.567 Ao 4.70 4.80 4.90 0.185 0.189 0.193 Bo 4.30 4.40 4.50 0.169 0.173 0.177 Ko 1.70 1.80 1.90 0.067 0.071 0.075 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 15
L79L00 SERIES Tape & Reel for TO-92 MECHANICAL DATA mm. DIM. MIN. A1 T T1 T2 d P0 P2 F1, F2 delta H W W0 W1 W2 H H0 H1 D0 t L1 delta P u Φ1 Φ2 inch TYP MAX. MIN. 4.80 3.80 1.60 2.30 0.48 12.5 5.65 2.44 17.5 5.7 8.5 TYP. MAX. 0.189 0.150 0.063 0.091 0.019 2.54 ±2 18.00 0.50 18.50 15.50 12.9 7.05 2.94 0.492 0.222 0.096 19.0 6.3 9.25 0.689 0.224 0.335 0.508 0.278 0.116 0.100 0.079 0.709 0.748 0.248 0.364 0.20 0.728 18.70 16.50 0.610 4.2 0.150 25.00 0.726 0.650 0.984 3.8 0.
PAGE 16
L79L00 SERIES Table 15: Revision History Date Revision 14-Mar-2005 15-Mar-2005 23-Dec-2005 9 10 11 16/17 Description of Changes Add Tape & Reel for TO-92. Add note on Table 3. Mistake on Ordering Table in Header.
PAGE 17
L79L00 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.