L78M12ABDT STMicroelectronics, L78M12ABDT Datasheet

V REG 0.5A +12V, SMD, 78M12, DPAK-3

L78M12ABDT

Manufacturer Part Number
L78M12ABDT
Description
V REG 0.5A +12V, SMD, 78M12, DPAK-3
Manufacturer
STMicroelectronics
Datasheets

Specifications of L78M12ABDT

Primary Input Voltage
19V
Output Voltage
12V
Dropout Voltage Vdo
2V
No. Of Pins
3
Output Current
500mA
Voltage Regulator Case Style
TO-252
Operating Temperature Range
-40°C To +125°C
Polarity
Positive
Number Of Outputs
1
Output Type
Fixed
Line Regulation
100 mV
Load Regulation
240 mV
Dropout Voltage (max)
2 V
Input Voltage Max
35 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Package / Case
TO-252
Mounting Style
SMD/SMT
Voltage Regulation Accuracy
2 %
Output Voltage Fixed
12V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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DESCRIPTION
The L78M00AB series of three-terminal positive
regulators is available in TO-220 and DPAK
packages and with several fixed output voltages,
making it useful in a wide range of applications.
These regulators can provide local on-card
regulation eliminating the distribution problems
associated with single point regulation. Each type
employs
shut-down and safe area protection, making it
essentially indestructible. If adequate heat sinking
is provided, they can deliver over 0.5A output
current. Although designed primarily as fixed
SCHEMATIC DIAGRAM
October 2003
OUTPUT CURRENT TO 0.5A
OUTPUT VOLTAGES OF 5; 6; 8; 9; 10; 12;
15; 18; 20; 24V
THERMAL OVERLOAD PROTECTION
SHORT CIRCUIT PROTECTION
OUTPUT TRANSITION SOA PROTECTION
±2% OUTPUT VOLTAGE TOLERANCE
GUARANTEED IN EXTENDED
TEMPERATURE RANGE
internal
current
limiting,
thermal
PRECISION 500mA REGULATORS
voltage regulators, these devices can be used
with external components to obtain adjustable
voltage and currents.
L78M00AB/AC
TO-220
DPAK
SERIES
1/17

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L78M12ABDT Summary of contents

Page 1

OUTPUT CURRENT TO 0.5A OUTPUT VOLTAGES 10; 12; 15; 18; 20; 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSITION SOA PROTECTION ±2% OUTPUT VOLTAGE TOLERANCE GUARANTEED IN EXTENDED TEMPERATURE RANGE DESCRIPTION The L78M00AB series ...

Page 2

L78M00AB/AC SERIES ABSOLUTE MAXIMUM RATINGS Symbol DC Input Voltage Output Current O P Power Dissipation tot T Storage Temperature Range stg Operating Junction Temperature T op Range Absolute Maximum Ratings are those values beyond which damage to ...

Page 3

... Available in Tape & Reel with the suffix "-TR". APPLICATION CIRCUITS TO-220 DPAK (*) L78M05ABV L78M05ABDT L78M05ACDT L78M06ABV L78M06ABDT L78M06ACDT L78M08ABV L78M08ABDT L78M08ACDT L78M09ABV L78M09ABDT L78M09ACDT L78M10ABV L78M10ABDT L78M10ACDT L78M12ABV L78M12ABDT L78M12ACDT L78M15ABV L78M15ABDT L78M15ACDT L78M18ABV L78M18ABDT L78M18ACDT L78M20ABV L78M20ABDT L78M20ACDT L78M24ABV L78M24ABDT L78M24ACDT L78M00AB/AC SERIES DPAK OUTPUT VOLTAGE ...

Page 4

L78M00AB/AC SERIES TEST CIRCUITS Figure Parameter Figure 2 : Load Regulation Figure 3 : Ripple Rejection 4/17 ...

Page 5

ELECTRICAL CHARACTERISTICS OF L78M05XX (refer to the test circuits 0.33 µ 0.1 µ Symbol Parameter V Output Voltage O V Output Voltage O V Line Regulation O V Load Regulation O ...

Page 6

L78M00AB/AC SERIES ELECTRICAL CHARACTERISTICS OF L78M08XX (refer to the test circuits 0.33 µ 0.1 µ Symbol Parameter V Output Voltage O V Output Voltage O V Line Regulation O V Load ...

Page 7

ELECTRICAL CHARACTERISTICS OF L78M10XX (refer to the test circuits 0.33 µ 0.1 µ Symbol Parameter V Output Voltage O V Output Voltage O V Line Regulation O V Load Regulation O ...

Page 8

L78M00AB/AC SERIES ELECTRICAL CHARACTERISTICS OF L78M15XX (refer to the test circuits 0.33 µ 0.1 µ Symbol Parameter V Output Voltage O V Output Voltage O V Line Regulation O V Load ...

Page 9

ELECTRICAL CHARACTERISTICS OF L78M20XX (refer to the test circuits 0.33 µ 0.1 µ Symbol Parameter V Output Voltage O V Output Voltage O V Line Regulation O V Load Regulation O ...

Page 10

L78M00AB/AC SERIES Figure 4 : Dropout Voltage vs Junction Temperature Figure 5 : Dropout Characteristics Figure 6 : Peak Output Current vs Input-Output Differential Voltage 10/17 Figure 7 : Output Voltage vs Junction Temperature Figure 8 : Supply Voltage Rejection ...

Page 11

Figure 10 : Load Transient Response Figure 11 : Line Transient Response L78M00AB/AC SERIES Figure 12 : Quiescent Current vs Input Voltage 11/17 ...

Page 12

L78M00AB/AC SERIES APPLICATIONS INFORMATION DESIGN CONSIDERATIONS The L78M00AB Series of fixed voltage regulators are designed with Thermal Overload Protection that shuts down the circuit when subjected to an excessive power overload condition, Internal Short-Circuit Protection that limits the maximum current ...

Page 13

Figure 15 : Current Boost Regulator V BEQ1 REQ REG 1 REG Figure 16 : Short-Circuit Protection The circuit of figure 6 can be modified ...

Page 14

L78M00AB/AC SERIES DIM. MIN. A 4.40 C 1. 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2 13.0 L5 2.65 L6 15.25 L7 6.2 L9 3.5 DIA. 3.75 14/17 TO-220 ...

Page 15

DPAK MECHANICAL DATA mm. DIM. MIN. A 2.2 A1 0.9 A2 0.03 B 0.64 B2 5.2 C 0. 6.4 G 4 0.6 TYP MAX. MIN. 2.4 0.086 1.1 0.035 0.23 0.001 ...

Page 16

L78M00AB/AC SERIES Tape & Reel DPAK-PPAK MECHANICAL DATA DIM. MIN 12 6.80 Bo 10.40 Ko 2.55 Po 3.9 P 7.9 16/17 mm. TYP MAX. 330 13.0 13.2 0.504 0.795 2.362 14.4 6.90 ...

Page 17

... 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. This publication supersedes and replaces all information previously supplied ...

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