MSK5116-12ETD [MSK]

HIGH CURRENT, LOW DROPOUT VOLTAGE REGULATORS; 大电流，低压差稳压器


型号：	MSK5116-12ETD
厂家：	M.S. KENNEDY CORPORATION
描述：	HIGH CURRENT, LOW DROPOUT VOLTAGE REGULATORS 大电流，低压差稳压器稳压器
文件：	总5页 (文件大小：274K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MIL-PRF-38534 CERTIFIED

HIGH CURRENT,

LOW DROPOUT

VOLTAGE REGULATORS

5116

SERIES

M.S.KENNEDY CORP.

4707 Dey Road Liverpool, N.Y. 13088

(315) 701-6751

FEATURES:

Electrically Isolated Top Tab or Z Tab SIP

Extremely Low Dropout Voltage: 350mV @ 1.5 Amps

Available in +1.5V,+1.7V,+1.9V,+2.5V,+3.3V,+5.0V and +12.0V

TTL Level Enable Pin: Zero Current Shutdown Mode

Reverse Battery and Load Dump Protection

Low Ground Current: 32mA Typical at Full Load

1% Maximum Guaranteed Accuracy

Output Current to 1.5 Amps

Contact MSK for MIL-PRF-38534 Qualification Status

DESCRIPTION:

The MSK 5116 series voltage regulators are available in +1.5V,+1.7V,+1.9V,+2.5V,+3.3V,+5.0V and +12.0V

configurations. All boast ultra low dropout specifications due to the utilization of a super PNP output pass transistor with

monolithic technology. Dropout voltages of 350mV at 1.5 amps are typical in this configuration, which drives

efficiency up and power dissipation down. Accuracy is guaranteed with a 1% maximum output voltage tolerance.

The series also offers a TTL/CMOS compatible on/off enable function. The MSK 5116 series is packaged in a space

efficient 5 pin power SIP available in two styles with three lead bend options.

EQUIVALENT SCHEMATIC

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

High Efficiency, High Current Linear Regulators

Constant Voltage/Current Regulators

System Power Supplies

Switching Power Supply Post Regulators

Battery Powered Equipment

1 Enable

2 Vin

3 Ground

4 Vout

5 NC

Rev. A 1/06

ABSOLUTE MAXIMUM RATINGS

VINP

VIN

TST

TLD

Storage Temperature Range -65°C to +150°C

Input Voltage (100mS 1%D.C.)-20V to +60V

Lead Temperature

Input Voltage

Enable Voltage

Output Current

26V

-0.3V to 26V

3.5A

300°C

VEN

IOUT

(10 Seconds Soldering)

Operating Temperature

MSK 5116 Series

-40°C to +85°C

-55°C to +125°C

MSK 5116H/E Series

ELECTRICAL SPECIFICATIONS

Group A MSK 5116H/E SERIES

MSK 5116 SERIES

Test Conditions

Parameter

Subgroup

Typ.

.ꢀꢁ

Max.

1ꢀ.

Min.

Typ.

.ꢀꢁ

1ꢀ.

Max.

1ꢀ.

2ꢀ.

2..

6..

1ꢀ.

2ꢀ.

.ꢀꢁ

1ꢀ.

3ꢀꢁ

Min.

Units

2,3

IOUT=1.mA; VIN=VOUT+1V

Output Voltage Tolerance

∆VOUT=-1%; IOUT=1..m A

∆V^OUT=-1%; IOUT=1ꢀꢁA

VIN=VOUT+ꢁV

22ꢁ

62ꢁ

1ꢀ2

Dropout Voltage

Load Regulation

Line Regulation

3ꢁ.

.ꢀ2

.ꢀ3

.ꢀ.ꢁ

.ꢀꢁ

2ꢀ1

3ꢁ.

.ꢀ2

.ꢀ3

.ꢀ.ꢁ

.ꢀꢁ

2ꢀ1

1.mA ≤ IOUT ≤ 1ꢀ2ꢁA

2,3

(VOUT +1V) ≤ VIN ≤ 26V

IOUT=1.mA

.ꢀ6

2,3

Output Current Limit

VOUT=.V; VIN=VOUT+1V

VIN=VOUT+1V; IOUT=.ꢀ7ꢁA

VIN=VOUT+1V; IOUT=1ꢀꢁA

CL=1.µF; 1.Hz ≤ f ≤ 1..KHz

3ꢀꢁ

µV

Ground Current

4..

1ꢀ2

Output Noise

4..

1ꢀ2

1..

2ꢀ4

HIGH/ON

Enable Input Voltage

Enable Input Current

.ꢀ8

6..

.ꢀ8

6..

LOW/OFF

HIGH/ON

LOW/OFF

µA

°C/W

°C

Shutdown Output Current

VENABLE ≤ .ꢀ8V

ꢁ..

3ꢀ7

ꢁ..

3ꢀ6

Thermal Resistance

Thermal Shutdown

Junction to Case @ 12ꢁ°C

3ꢀ1

13.

3ꢀ1

13.

NOTES:

Output decoupled to ground using 33µF minimum capacitance unless otherwise specified.

This parameter is guaranteed by design but need not be tested.

Typical parameters are representative of actual device performance but are for reference only.

All output parameters are tested using a low duty cycle pulse to maintain T^J= TC.

Industrial grade and "E" suffix devices shall be tested to subgroup 1 unless otherwise specified.

Military grade devices ('B' suffix) shall be 100% tested to subgroups 1,2,3.

Subgroup 1

Subgroup 2

Subgroup 3

TC=+25°C

TJ=+125°C

TA=-55°C

Please consult the factory if alternate output voltages are required.

Due to current limit, maximum output current may not be available at all values of VIN-VOUT and

temperatures. See typical performance curves for clarification.

Continuous operation at or above absolute maximum ratings may adversely effect the device performance

and/or life cyle.

Rev. A 1/06

APPLICATION NOTES

HEAT SINK SELECTION:

REGULATOR PROTECTION:

To select a heat sink for the MSK 5116, the following formula

for convective heat flow may be used.

The MSK 5116 series is fully protected against reversed input

polarity, overcurrent faults, overtemperature conditions (Pd) and

transient voltage spikes of up to 60V. If the regulator is used

in dual supply systems where the load is returned to a negative

supply, the output voltage must be diode clamped to ground.

Governing Equation:

Tj = Pd x (Rθjc + Rθcs + Rθsa) + Ta

WHERE:

OUTPUT CAPACITOR:

Tj = Junction Temperature

Pd = Total Power Dissipation

The output voltage ripple of the MSK 5116 series voltage regu-

lators can be minimized by placing a filter capacitor from the

output to ground. The optimum value for this capacitor may

vary from one application to the next, but a minimum of 10µF

is recommended for optimum performance. This capacitor need

not be an expensive low ESR type: aluminum electrolytics are

adequate. In fact, extremely low ESR capacitors may contrib-

ute to instability. Tantalum capacitors are recommended for

systems where fast load transient response is important. Tran-

sient load response can also be improved by placing a capaci-

tor directly across the load.

Rθjc = Junction to Case Thermal Resistance

Rθcs = Case to Heat Sink Thermal Resistance

Rθsa = Heat Sink to Ambient Thermal Resistance

Ta = Ambient Temperature

First, the power dissipation must be calculated as follows:

Power Dissipation = (Vin - Vout) x Iout

Next, the user must select a maximum junction temperature.

The absolute maximum allowable junction temperature is 125°C.

The equation may now be rearranged to solve for the required

heat sink to ambient thermal resistance (Rθsa).

LOAD CONNECTIONS

In voltage regulator applications where very large load cur-

rents are present, the load connection is very important. The

path connecting the output of the regulator to the load must be

extremely low impedance to avoid affecting the load regulation

specifications. Any impedance in this path will form a voltage

divider with the load.

EXAMPLE:

An MSK 5116-3.3 is configured for Vin=+5V and

Vout=+3.3V. Iout is a continuous 1A DC level. The ambient

temperature is +25°C. The maximum desired junction tem-

perature is 125°C.

Rθjc = 3.6°C/W and Rθcs = 0.15°C/W for most thermal greases

ENABLE PIN

Power Dissipation = (5V - 3.3V) x (1A)

= 1.7 Watts

The MSK 5116 series of voltage regulators are equipped with a

TTL compatible ENABLE pin. A TTL high level on this pin acti-

vates the internal bias circuit and powers up the device. A TTL

low level on this pin places the controller in shutdown mode

and the device draws approximately 10µA of quiescent current.

If the enable function is not used, simply connect the enable pin

to the input.

Solve for Rθsa:

Rθsa = 125°C - 25°C - 3.6°C/W - 0.15°C/W

1.7W

= 55.07°C/W

In this example, a heat sink with a thermal resistance of no

more than 55°C/W must be used to maintain a junction tem-

perature of no more than 125°C.

DEVICE/CASE CONNECTION:

The MSK 5116 series are highly thermally conductive devices

and the thermal path from the package heat sink to the internal

junctions is very short. Since the case is electrically isolated

from the internal circuitry, the package can be directly con-

nected to a heat sink.

Rev. A 1/06

TYPICAL PERFORMANCE CURVES

Rev. A 1/06

MECHANICAL SPECIFICATIONS

NOTE: ALL DIMENSIONS ARE .ꢀ.1. INCHES UNLESS OTHERWISE LABELEDꢀ

ESD Triangle indicates Pin 1ꢀ

ORDERING INFORMATION

MSK5116-3.3 H T U

LEAD CONFIGURATIONS

S= STRAIGHT; U= BENT UP; D= BENT DOWN

PACKAGE STYLE

T= TOP TAB; Z= Z PACK

SCREENING

BLANK= INDUSTRIAL; E=EXTENDED RELIABILITY

H=MIL-PRF 38534 CLASS H

OUTPUT VOLTAGE

1.5=+1.5V; 1.7=+1.7V; 1.9=+1.9V; 2.5=+2.5V

3.3=+3.3V; 5.0=+5.0V; 12=+12.0V

GENERAL PART NUMBER

The above example is a +3.3V, Military regulator using the top tab package with leads bent up.

M.S. Kennedy Corp.

4707 Dey Road, Liverpool, New York 13088

Phone (315) 701-6751

FAX (315) 701-6752

www.mskennedy.com

The information contained herein is believed to be accurate at the time of printingꢀ MSK reserves the right to make

changes to its products or specifications without notice, however, and assumes no liability for the use of its productsꢀ

Please visit our website for the most recent revision of this datasheetꢀ

Contact MSK for MIL-PRF-38ꢁ34 qualification statusꢀ

Rev. A 1/06

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