MC78M05CDTX [ONSEMI]

线性稳压器，正向，5.0 V，500 mA;


型号：	MC78M05CDTX
厂家：	ONSEMI
描述：	线性稳压器，正向，5.0 V，500 mA 输出元件稳压器调节器
文件：	总10页 (文件大小：387K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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January 2015

KA78M05 / LM78M05 / MC78M05

3-Terminal 0.5 A Positive Voltage Regulator

Description

Features

The KA78M05 / LM78M05 / MC78M05 series of three-

terminal positive regulators is available in the TO-220 / D-

PAK packages, making it useful in a wide range of appli-

cations.

• Output Current up to 0.5 A

• Output Voltages of 5 V

• Thermal Overload Protection

• Short-Circuit Protection

• Output Transistor Safe Operating Area (SOA) Protection

TO-220

GND

D-PAK

GND

1. Input 2. GND 3. Output

Ordering Information⁽¹⁾

Product Number

KA78M05TU

Package

Packing Method

Operating Temperature

TO-220 (Dual Gauge)

Rail

KA78M05RTM

MC78M05CDTX

LM78M05CT

D-PAK

Tape and Reel

Rail

-40 to +125°C

TO-220 (Single Gauge)

Note:

1. Refer to below figure for TM / TF suffix of DPAK packing option.

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

www.fairchildsemi.com

Block Diagram

INPUT

OUTPUT

SERIES

PASS

ELEMENT

SOA

PROTECTION

CURRENT

GENERATOR

REFERENCE

VOLTAGE

STARTING

CIRCUIT

ERROR

AMPLIFIER

THERMAL

PROTECTION

GND

Figure 1. Block Diagram

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only.

Symbol

V_I

Parameter

Input Voltage (for V_O= 5 V)

Thermal Resistance, Junction-Case⁽²⁾

Value

Unit

2.5

R_θJC

TO-220 (T_C= +25°C)

TO-220 (T_A= +25°C)

D-PAK (T_A= +25°C)

°C/W

R_θJA

Thermal Resistance, Junction-Air^{(2), (3)}

°C/W

T_OPR

T_J(MAX)

T_STG

Operating Junction Temperature Range

Maximum Junction Temperature Range

Storage Temperature Range

-40 to +125

150

°C

-65 to +150

Notes:

2. Thermal resistance test board.

Size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P)

JEDEC standard: JESD51-3, JESD51-7

3. Assume no ambient airflow.

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

www.fairchildsemi.com

Electrical Characteristics

Refer to the test circuits, -40 < T_J< +125°C, I_O= 350 mA, V_I= 10 V, C_I= 0.33 μF, C_O= 0.1 μF unless otherwise speci-

fied.⁽⁴⁾

Symbol

Parameter

Output Voltage

Conditions

T_J= +25°C

Min.

Typ. Max.

Unit

4.8

5.0

5.2

V_O

I_O= 5 mA to 350 mA,

V_I= 7 V to 20 V

4.75

5.00

5.25

V_I= 7 V to 25 V

V_I= 8 V to 25 V

100

I_O= 200 mA

T_J= +25°C

ΔV_O

Line Regulation⁽⁵⁾

I_O= 5 mA to 0.5 A, T_J= +25°C

_O= 5 mA to 200 mA, T_J= +25 °C

T_J= +25°C

_O= 5 mA to 350 mA

100

ΔV_O

Load Regulation⁽⁵⁾

Quiescent Current

I_Q

4.0

6.0

0.5

ΔI_Q

Quiescent Current Change

I_O= 200 mA,

V_I= 8 V to 25 V

0.8

I_O= 5 mA

T_J= -40 to +125°C

ΔV/ΔT

V_N

Output Voltage Drift

Output Noise Voltage

Ripple Rejection

-0.5

mV/°C

μV/Vo

f = 10 Hz to 100 kHz

f = 120 Hz, I_O= 300 mA

V_I= 8 V to 18 V, T_J= +25 °C

V_D

I_SC

I_PK

Dropout Voltage

Short-Circuit Current

Peak Current

T_J= +25°C, I_O= 500 mA

T_J= +25°C, V_I= 35 V

T_J= +25°C

300

700

Notes:

4. The parameters are guaranteed across the temperature range by characterization.

5. Load and line regulation are specified at constant junction temperature. Change in V_odue to heating effects must be

taken into account separately. Pulse testing with low duty is used.

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

www.fairchildsemi.com

Typical Applications^{(6), (7)}

KA78M05

LM78M05

MC78M05

V_I

V_O

C_O

C_I

0.1 μF

0.3 μF

Figure 2. Fixed-Output Regulator

KA78M05

LM78M05

MC78M05

V_I

C_O

C_I

V_XX

0.33 μF

0.1 μF

I_O

R₁

Vxx

I_O

+I_O

R₁

Figure 3. Constant-Current Regulator

Notes:

6. C_Iis required if the regulator is located an appreciable distance from the power supply filter.

7. Although no output capacitor is needed for stability, it does improve transient response.

www.fairchildsemi.com

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

Typical Applications (Continued)

KA78M05

LM78M05

MC78M05

V_I

V_O

V_XX

C_O

C_I

R₁

0.33 μF

0.1 μF

I_O

R₂

I_R1≥ 5I_O

V_O= V_XX(1+R₂/R₁) +I_OR₂

Figure 4. Circuit for Increasing Output Voltage

KA78M05

V_I

LM78M05

MC78M05

V_O

0.1 μF

C_O

C_I

0.33 μF

LM741

10 kΩ

Figure 5. Adjustable Output Regulator (7 to 30 V)

13 V < V_I< 25 V

V_I

KA78M05

V_O

LM78M05

MC78M05

910 Ω

V_XX

0.33 μF

9.1 kΩ

0.1μF

LM741

R₄

^XXR₁

V_O= V

10 kΩ

-7 V < -V_I< 17 V

Figure 6. 0.5 to 10 V Regulator

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

www.fairchildsemi.com

Physical Dimensions

Figure 7. TO-220, MOLDED, 3LEAD, JEDEC VARIATION AB

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

www.fairchildsemi.com

Physical Dimensions (Continued)

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Figure 8. 3-LEAD, TO-252, JEDEC TO-252 VAR. AB, SURFACE MOUNT (DPAK)

KA78M05 / LM78M05 / MC78M05 Rev. 2.5

www.fairchildsemi.com

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Making Small Speakers Sound Louder

and Better™

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Saving our world, 1mW/W/kW at a time™

SignalWise¥

SmartMax¥

SMART START¥

Solutions for Your Success¥

SPM^®

ESBC¥

MicroPak¥

UHC^®

MicroPak2¥

MillerDrive¥

MotionMax¥

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Ultra FRFET¥

UniFET¥

VCX¥

VisualMax¥

VoltagePlus¥

XS™

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FACT^®

SuperFET^®

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MTi^®

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FAST^®

MVN^®

FastvCore¥

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SyncFET¥

Sync-Lock™

OptoHiT¥

௝❺

™

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regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

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MC78M05CDTX [ONSEMI]

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