Datasheet

ManualsBrandsON Semiconductor ManualsIntegrated Circuits (ICs)Linear Fixed Voltage Regulator TO-92 -5V 100mA

100 mA Negative Voltage

Regulators

The MC79L00, A Series negative voltage regulators are

inexpensive, easy–to–use devices suitable for numerous applications

requiring up to100 mA. Like the higher powered MC7900 Series

negative regulators, this series features thermal shutdown and current

limiting, making them remarkably rugged. In most applications, no

external components are required for operation.

The MC79L00 devices are useful for on–card regulation or any

other application where a regulated negative voltage at a modest

current level is needed. These regulators offer substantial advantage

over the common resistor/zener diode approach.

• No External Components Required

• Internal Short Circuit Current Limiting

• Internal Thermal Overload Protection

• Low Cost

• Complementary Positive Regulators Offered (MC78L00 Series)

• Available in Either ±5% (AC) or ±10% (C) Selections

Representative Schematic Diagram

*Automotive temperature range selections are available with special test conditions

and additional tests in 5, 12 and 15 V devices. Contact your local ON Semiconductor

sales office for information.

R18

Q10

Q14

R10 R11

Q11

R14 R15

Q13

Q12

R16

R17

Gnd

Output

Input

ON Semiconductor

 Semiconductor Components Industries, LLC, 2002

January, 2002 – Rev. 4

1 Publication Order Number:

MC79L00/D

MC79L00,

MC79L00A Series

THREE–TERMINAL LOW

CURRENT NEGATIVE FIXED

VOLTAGE REGULATORS

ORDERING INFORMATION

P SUFFIX

PLASTIC PACKAGE

CASE 29

Pin 1. Ground

2. Input

3. Output

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SOP–8)*

Pin 1. V

out

2. V

3. V

4. NC

5. GND

6. V

7. V

8. NC

*SOP–8 is an internally modified SO–8 package.

Pins 2, 3, 6, and 7 are electrically common to the

die attach flag. This internal lead frame modifica-

tion decreases package thermal resistance and

increases power dissipation capability when

appropriately mounted on a printed circuit board.

SOP–8 conforms to all external dimensions of the

standard SO–8 package.

Device No.

±10%

MC79L05C

MC79L12C

MC79L15C

MC79L18C

MC79L24C

Device No.

Nominal

Voltage

MC79L05AC

MC79L12AC

MC79L15AC

MC79L18AC

MC79L24AC

–5.0

–12

–15

–18

–24

Device

Operating

Temperature Range

Package

MC79LXXACD*

= 0° to +125°C

SOP–8

Plastic PowerMC79LXXACP

Plastic PowerMC79LXXCP

MC79LXXABD*

MC79LXXABP*

SOP–8

Plastic Power

= –40° to +125°C

XX indicates nominal voltage

SEMICONDUCTOR

TECHNICAL DATA

Summary of content (8 pages)

PAGE 1
ON Semiconductor MC79L00, MC79L00A Series 100 mA Negative Voltage Regulators The MC79L00, A Series negative voltage regulators are inexpensive, easy–to–use devices suitable for numerous applications requiring up to100 mA. Like the higher powered MC7900 Series negative regulators, this series features thermal shutdown and current limiting, making them remarkably rugged. In most applications, no external components are required for operation.
PAGE 2
MC79L00, MC79L00A Series MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.) Rating Symbol Value Unit VI –30 –35 –40 Vdc Storage Temperature Range Tstg –65 to +150 °C Junction Temperature TJ +150 °C Input Voltage (–5 V) Input Voltage (–12, –15, –18 V) Input Voltage (–24 V) ELECTRICAL CHARACTERISTICS (VI = –10 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, –40°C < TJ +125°C (for MC79LXXAB), 0°C < TJ < +125°C (for MC79LXXAC)).
PAGE 3
MC79L00, MC79L00A Series ELECTRICAL CHARACTERISTICS (VI = –23 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, –40°C < TJ +125°C (for MC79LXXAB), 0°C < TJ < +125°C (for MC79LXXAC)). MC79L15C Characteristics MC79L15AC, AB Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = +25°C) VO –13.8 –15 –16.2 –14.4 –15 –15.6 Vdc Input Regulation (TJ = +25°C) –17.5 Vdc ≥ VI ≥ –30 Vdc –20 Vdc ≥ VI ≥ –30 Vdc Regline Load Regulation TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA 1.
PAGE 4
MC79L00, MC79L00A Series ELECTRICAL CHARACTERISTICS (VI = –33 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, 0°C < TJ < +125°C, unless otherwise noted). MC79L24C Characteristics MC79L24AC Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = +25°C) VO –22.1 –24 –25.9 –23 –24 –25 Vdc Input Regulation (TJ = +25°C) –27 Vdc ≥ VI ≥ –38 Vdc –27.5 Vdc ≥ VI ≥ –38 Vdc –28 Vdc ≥ VI ≥ –38 Vdc Regline Load Regulation TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA 1.
PAGE 5
MC79L00, MC79L00A Series TYPICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted.) V I -V O , INPUT/OUTPUT DIFFERENTIAL VOLTAGE (V) MC79L05C VO = -5.0 V TJ = 25°C 6.0 IO = 1.0 mA 4.0 2.0 IO = 100 mA IO = 40 mA 0 0 -2.0 -4.0 -6.0 Vin, INPUT VOLTAGE (V) -0.8 -10 -2.5 -2.0 IO = 70 mA IO = 40 mA -1.5 IO = 1.0 mA -1.0 Dropout of Regulation is defined when ∆VO = 2% of VO -0.5 0 0 25 Figure 3. Dropout Characteristics I IB , INPUT BIAS CURRENT (mA) 5.0 4.0 3.8 3.6 3.
PAGE 6
MC79L00, MC79L00A Series PACKAGE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 29–11 ISSUE AL A NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. B R P L SEATING PLANE K DIM A B C D G H J K L N P R V D X X G J H V C SECTION X–X 1 N N http://onsemi.com 6 INCHES MIN MAX 0.175 0.205 0.170 0.210 0.125 0.165 0.016 0.021 0.045 0.
PAGE 7
MC79L00, MC79L00A Series PACKAGE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751–07 ISSUE W –X– NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. A 8 5 0.25 (0.
PAGE 8
MC79L00, MC79L00A Series ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein.