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MC78M12CDT

Part # MC78M12CDT
Description IC REG LDO 12V 0.5A DPAK
Category IC
Availability Out of Stock
Qty 0
Qty Price
1 + $0.21140

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
THREE–TERMINAL MEDIUM
CURRENT POSITIVE FIXED
VOLTAGE REGULATORS
ORDERING INFORMATION
MC78MXXCDT
MC78MXXCT
T
J
= – 40° to +125°C
DPAK
TO–220
Order this document by MC78M00/D
MC78MXXACDT*
XX Indicates nominal voltage.
* Available in 5.0, 8.0, 12 and 15 V devices.
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
Pin 1. Input
2. Ground
3. Output
T SUFFIX
PLASTIC PACKAGE
CASE 221A
(TO–220)
Heatsink surface
connected to Pin 2.
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
3
1
2
3
1
MC78MXXACT*
3
1
2
1
MOTOROLA ANALOG IC DEVICE DATA
The MC78M00/MC78M00A Series positive voltage regulators are
identical to the popular MC7800 Series devices, except that they are
specified for only half the output current. Like the MC7800 devices, the
MC78M00 three–terminal regulators are intended for local, on–card voltage
regulation.
Internal current limiting, thermal shutdown circuitry and safe–area
compensation for the internal pass transistor combine to make these
devices remarkably rugged under most operating conditions. Maximum
output current, with adequate heatsinking is 500 mA.
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe–Area Compensation
• MC78M00A High Accuracy (±2%) Available for 5.0 V, 8.0 V, 12 V
and 15 V
• Previous Commerical Temperature Range has been extended to a
Junction Temperature Range of –40°C to +125°C
Representative Schematic Diagram
This device contains 28 active transistors.
1.0 k 1.0 k
Input
210
6.7
V
16 k
100
200
300
3.6
k
6.4
k
520
6.0 k
2.0 k 3.9 k
6.0
k
2.8 k
40
pF
5.6 k
3.0 k
1.0 k
300
20050
13
0.24
Gnd
Output
10 pF
2.6 k
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC78M05AC 5.0 V MC78M09C 9.0 V MC78M18C 18 V
MC78M05C 5.0 V MC78M12AC 12 V MC78M20C 20 V
MC78M06C 6.0 V MC78M12C 12 V MC78M24C 24 V
MC78M08AC 8.0 V MC78M15AC 15 V
MC78M08C 8.0 V MC78M15C 15 V
Motorola, Inc. 1997 Rev 6
MC78M00 MC78M00A Series
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS (T
A
= 25°C, unless otherwise noted.)
Rating Symbol Value Unit
Input Voltage (5.0 V–18 V) V
I
35 Vdc
(20 V–24V) 40
Power Dissipation (Package Limitation)
Plastic Package, T Suffix
T
A
= 25°C P
D
Internally Limited
Thermal Resistance, Junction–to–Air θ
JA
70 °C/W
Thermal Resistance, Junction–to–Case θ
JC
5.0 °C/W
Plastic Package, DT Suffix
T
A
= 25°C P
D
Internally Limited
Thermal Resistance, Junction–to–Air θ
JA
92 °C/W
Thermal Resistance, Junction–to–Case θ
JC
5.0 °C/W
Operating Junction Temperature Range T
J
+150 °C
Storage Temperature Range T
stg
–65 to +150 °C
NOTE: ESD data available upon request.
MC78M05C/AC ELECTRICAL CHARACTERISTICS (V
I
= 10 V, I
O
= 350 mA, –40°C < T
J
< 125°C, P
D
≤ 5.0 W,
unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (T
J
= 25°C) V
O
Vdc
MC78M05C 4.8 5.0 5.2
MC78M05AC 4.9 5.0 5.1
Output Voltage Variation V
O
Vdc
(7.0 Vdc ≤ V
I
≤ 20 Vdc, 5.0 mA ≤ I
O
≤ 350 mA)
MC78M05C 4.75 – 5.25
MC78M05AC 4.80 – 5.20
Line Regulation Reg
line
– 3.0 5.0 mV
(T
J
= 25°C, 7.0 Vdc ≤ V
I
≤ 25 Vdc, I
O
= 200 mA)
Load Regulation Reg
load
mV
(T
J
= 25°C, 5.0 mA ≤ I
O
≤ 200 mA) – 20 100
(T
J
= 25°C, 5.0 mA ≤ I
O
≤ 500 mA) – 10 50
Input Bias Current (T
J
= 25°C) I
IB
– 3.2 6.0 mA
Quiescent Current Change ∆I
IB
mA
(8.0 Vdc ≤ V
I
≤ 25 Vdc, I
O
= 200 mA) – – 0.8
(5.0 mA ≤ I
O
≤ 350 mA) – – 0.5
Output Noise Voltage (T
A
= 25°C, 10 Hz ≤ f ≤ 100 kHz) V
n
– 40 – µV
Ripple Rejection RR dB
(I
O
= 100 mA, f = 120 Hz, 8.0 V ≤ V
I
≤ 18 V) 62 – –
(I
O
= 300 mA, f = 120 Hz, 8.0 ≤ V
I
≤ 18 V, T
J
= 25°C) 62 80 –
Dropout Voltage V
I
–V
O
– 2.0 – Vdc
(T
J
= 25°C)
Short Circuit Current Limit (T
J
= 25°C, V
I
= 35 V) I
OS
– 50 – mA
Average Temperature Coefficient of Output Voltage ∆V
O
/∆T – ±0.2 – mV/°C
(I
O
= 5.0 mA)
Peak Output Current I
O
– 700 – mA
(T
J
= 25°C)
MC78M00 MC78M00A Series
3
MOTOROLA ANALOG IC DEVICE DATA
MC78M06C ELECTRICAL CHARACTERISTICS (V
I
= 11 V, I
O
= 350 mA, –40°C < T
J
< 125°C, P
D
≤ 5.0 W, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (T
J
= 25°C) V
O
5.75 6.0 6.25 Vdc
Output Voltage Variation V
O
5.7 – 6.3 Vdc
(8.0 Vdc ≤ V
I
≤ 21 Vdc, 5.0 mA ≤ I
O
≤ 350 mA)
Line Regulation Reg
line
– 5.0 50 mV
(T
J
= 25°C, 8.0 Vdc ≤ V
I
≤ 25 Vdc, I
O
= 200 mA)
Load Regulation Reg
load
mV
(T
J
= 25°C, 5.0 mA ≤ I
O
≤ 500 mA) – 20 120
(T
J
= 25°C, 5.0 mA ≤ I
O
≤ 200 mA) – 10 60
Input Bias Current (T
J
= 25°C) I
IB
– 3.2 6.0 mA
Quiescent Current Change ∆I
IB
mA
(9.0 Vdc ≤ V
I
≤ 25 Vdc, I
O
= 200 mA) – – 0.8
(5.0 mA ≤ I
O
≤ 350 mA) – – 0.5
Output Noise Voltage (T
A
= 25°C, 10 Hz ≤ f ≤ 100 kHz) V
n
– 45 – µV
Ripple Rejection RR dB
(I
O
= 100 mA, f = 120 Hz, 9.0 V ≤ V
I
≤ 19 V) 59 – –
(I
O
= 300 mA, f = 120 Hz, 9.0 V ≤ V
I
≤ 19 V, T
J
= 25°C) 59 80 –
Dropout Voltage V
I
– V
O
– 2.0 – Vdc
(T
J
= 25°C)
Short Circuit Current Limit (T
J
= 25°C, V
I
= 35 V) I
OS
– 50 – mA
Average Temperature Coefficient of Output Voltage ∆V
O
/∆T – ±0.2 – mV/°C
(I
O
= 5.0 mA)
Peak Output Current I
O
– 700 – mA
(T
J
= 25°C)
MC78M08C/AC ELECTRICAL CHARACTERISTICS (V
I
= 14 V, I
O
= 350 mA, –40°C < T
J
< 125°C, P
D
≤ 5.0 W,
unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (T
J
= 25°C) V
O
Vdc
MC78M08C 7.70 8.0 8.30
MC78M08AC 7.84 8.0 8.16
Output Voltage Variation V
O
Vdc
(10.5 Vdc ≤ V
I
≤ 23 Vdc, 5.0 mA ≤ I
O
≤ 350 mA)
MC78M08C 7.6 – 8.4
MC78M08AC 7.7 – 8.3
Line Regulation Reg
line
– 6.0 50 mV
(T
J
= 25°C, 10.5 Vdc ≤ V
I
≤ 25 Vdc, I
O
= 200 mA)
Load Regulation Reg
load
mV
(T
J
= 25°C, 5.0 mA ≤ I
O
≤ 500 mA) – 25 160
(T
J
= 25°C, 5.0 mA ≤ I
O
≤ 200 mA) – 10 80
Input Bias Current (T
J
= 25°C) I
IB
– 3.2 6.0 mA
Quiescent Current Change ∆I
IB
mA
(10.5 Vdc ≤ V
I
≤ 25 Vdc, I
O
= 200 mA) – – 0.8
(5.0 mA ≤ I
O
≤ 350 mA) – – 0.5
Output Noise Voltage (T
A
= 25°C, 10 Hz ≤ f ≤ 100 kHz) V
n
– 52 – µV
Ripple Rejection RR dB
(I
O
= 100 mA, f = 120 Hz, 11.5 V ≤V
I
≤ 21.5 V) 56 – –
(I
O
= 300 mA, f = 120 Hz, 11.5 V ≤V
I
≤ 21.5 V, T
J
= 25°C) 56 80 –
Dropout Voltage V
I
–V
O
– 2.0 – Vdc
(T
J
= 25°C)
Short Circuit Current Limit (T
J
= 25°C, V
I
= 35 V) I
OS
– 50 – mA
Average Temperature Coefficient of Output Voltage ∆V
O
/∆T – ±0.2 – mV/°C
(I
O
= 5.0 mA)
Peak Output Current I
O
– 700 – mA
(T
J
= 25°C)
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