Motorola MC79L12ABP, MC79L12BD, MC79L12ACD, MC79L12ACP, MC79L18BD Datasheet
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Three-Terminal Low Current
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
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Representative Schematic Diagram |
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R8 |
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Gnd |
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R |
R6 |
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Q10 |
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5 |
Q5 |
R9 |
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R18 |
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R17 |
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Q4 |
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R1 |
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R7 |
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Q8 |
Q14 |
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Q9 |
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R16 |
Q1 |
R4 |
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Output |
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R2 |
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Q12 |
Z1 |
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C |
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Q2 |
Q13 |
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R3 |
Q6 |
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Q7 |
Q11 |
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R10 |
R11 |
R14 |
R15 |
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Input |
*Automotive temperature range selections are available with special test conditions and additional tests in 5, 12 and 15 V devices. Contact your local Motorola sales office for information.
MC79L00, A
Series
THREE±TERMINAL LOW CURRENT NEGATIVE FIXED VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX |
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PLASTIC PACKAGE |
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CASE 29 |
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Pin 1. |
Ground |
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2. |
Input |
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1 |
3. |
Output |
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3 |
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D SUFFIX |
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PLASTIC PACKAGE |
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8 |
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CASE 751 |
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1 |
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(SOP±8)* |
Pin 1. |
Vout |
5. |
GND |
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2. |
Vin |
6. |
Vin |
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3. |
Vin |
7. |
Vin |
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4. |
NC |
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 modification 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. |
Device No. |
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Nominal |
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±10% |
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5% |
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Voltage |
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MC79L05C |
MC79L05AC |
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±5.0 |
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MC79L12C |
MC79L12AC |
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±12 |
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MC79L15C |
MC79L15AC |
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±15 |
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MC79L18C |
MC79L18AC |
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±18 |
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MC79L24C |
MC79L24AC |
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±24 |
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ORDERING INFORMATION |
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Operating |
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Device |
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Temperature Range |
Package |
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MC79LXXACD* |
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SOP±8 |
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MC79LXXACP |
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TJ = 0° to +125°C |
Plastic Power |
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MC79LXXCP |
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Plastic Power |
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MC79LXXABD* |
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TJ = ±40° to +125°C |
SOP±8 |
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MC79LXXABP* |
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Plastic Power |
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XX indicates nominal voltage
Motorola, Inc. 1996 |
Rev 2 |
MC79L00, A Series
MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.) |
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Rating |
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Symbol |
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Value |
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Unit |
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Input Voltage (±5 V) |
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VI |
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±30 |
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Vdc |
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(±12, ±15, ±18 V) |
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±35 |
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(±24 V) |
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±40 |
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Storage Temperature Range |
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Tstg |
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±65 to +150 |
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°C |
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Junction Temperature |
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TJ |
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+150 |
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°C |
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ELECTRICAL CHARACTERISTICS (VI = ±10 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF, ±40°C < TJ +125°C (for MC79LXXAB), |
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0°C < TJ < +125°C (for MC79LXXAC)). |
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MC79L05C, AB |
MC79L05AC, AB |
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Characteristics |
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Symbol |
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Min |
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Typ |
Max |
Min |
Typ |
Max |
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Unit |
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Output Voltage (TJ = +25°C) |
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VO |
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±4.6 |
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±5.0 |
±5.4 |
±4.8 |
±5.0 |
±5.2 |
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Vdc |
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Input Regulation |
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Regline |
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mV |
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(TJ = +25°C) |
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±7.0 Vdc ≥ |
VI |
≥ |
±20 Vdc |
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± |
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± |
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200 |
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150 |
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±8.0 Vdc ≥ |
VI |
≥ |
±20 Vdc |
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± |
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± |
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150 |
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100 |
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Load Regulation |
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Regload |
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mV |
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TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA |
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± |
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60 |
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60 |
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1.0 mA ≤ IO ≤ 40 mA |
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± |
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30 |
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30 |
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Output Voltage |
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VO |
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Vdc |
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±7.0 Vdc ≥ |
VI ≥ |
±20 Vdc, 1.0 mA ≤ IO ≤ 40 mA |
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±4.5 |
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± |
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±5.5 |
±4.75 |
± |
±5.25 |
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VI = ±10 Vdc, 1.0 mA ≤ IO ≤ 70 mA |
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±4.5 |
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± |
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±5.5 |
±4.75 |
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±5.25 |
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Input Bias Current |
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IIB |
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mA |
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(TJ = +25°C) |
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± |
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± |
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6.0 |
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6.0 |
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(TJ = +125°C) |
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± |
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± |
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5.5 |
± |
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5.5 |
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Input Bias Current Change |
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IIB |
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mA |
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±8.0 Vdc ≥ |
VI ≥ |
±20 Vdc |
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± |
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± |
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1.5 |
± |
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1.5 |
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1.0 mA ≤ IO ≤ 40 mA |
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± |
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0.2 |
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0.1 |
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Output Noise Voltage |
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Vn |
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40 |
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40 |
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μV |
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(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) |
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Ripple Rejection |
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RR |
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40 |
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49 |
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41 |
49 |
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dB |
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(±8.0 ≥ VI ≥ |
±18 Vdc, f = 120 Hz, TJ = +25°C) |
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Dropout Voltage (IO = 40 mA, TJ = +25°C) |
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|VI±VO| |
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± |
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1.7 |
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± |
1.7 |
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Vdc |
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ELECTRICAL CHARACTERISTICS (VI = ±19 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF, ±40°C < TJ +125°C (for MC79LXXAC), |
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0°C < TJ < +125°C (for MC79LXXAB)). |
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MC79L12C, AB |
MC79L12AC, AB |
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Characteristics |
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Symbol |
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Min |
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Typ |
Max |
Min |
Typ |
Max |
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Unit |
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Output Voltage (TJ = +25°C) |
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VO |
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±11.1 |
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±12 |
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±12.9 |
±11.5 |
±12 |
±12.5 |
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Vdc |
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Input Regulation |
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Regline |
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mV |
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(TJ = +25°C) |
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±14.5 Vdc ≥ |
VI ≥ |
±27 Vdc |
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± |
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± |
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250 |
± |
± |
250 |
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±16 Vdc ≥ VI ≥ |
±27 Vdc |
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± |
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± |
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200 |
± |
± |
200 |
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Load Regulation |
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Regload |
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mV |
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TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA |
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± |
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± |
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100 |
± |
± |
100 |
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1.0 mA ≤ IO ≤ 40 mA |
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± |
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± |
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50 |
± |
± |
50 |
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Output Voltage |
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VO |
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Vdc |
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±14.5 Vdc ≥ |
VI ≥ |
±27 Vdc, 1.0 mA ≤ IO ≤ 40 mA |
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±10.8 |
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± |
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±13.2 |
±11.4 |
± |
±12.6 |
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VI = ±19 Vdc, 1.0 mA ≤ IO ≤ 70 mA |
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±10.8 |
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± |
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±13.2 |
±11.4 |
± |
±12.6 |
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Input Bias Current |
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IIB |
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mA |
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(TJ = +25°C) |
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± |
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± |
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6.5 |
± |
± |
6.5 |
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(TJ = +125°C) |
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± |
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± |
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6.0 |
± |
± |
6.0 |
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Input Bias Current Change |
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IIB |
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mA |
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±16 Vdc ≥ VI ≥ |
±27 Vdc |
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± |
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± |
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1.5 |
± |
± |
1.5 |
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1.0 mA ≤ IO ≤ 40 mA |
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± |
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± |
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0.2 |
± |
± |
0.2 |
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Output Noise Voltage |
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Vn |
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± |
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80 |
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± |
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80 |
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μV |
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(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) |
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Ripple Rejection |
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RR |
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36 |
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42 |
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± |
37 |
42 |
± |
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dB |
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(±15 ≤ VI ≤ ±25 Vdc, f = 120 Hz, TJ = +25°C) |
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Dropout Voltage (IO = 40 mA, TJ = +25°C) |
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|VI±VO| |
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± |
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1.7 |
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± |
± |
1.7 |
± |
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Vdc |
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2 |
MOTOROLA ANALOG IC DEVICE DATA |
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