LM317MDT - ON SEMICONDUCTOR

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Is Now Part of

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Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, 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

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is an Equal Opportunity/Afﬁrmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

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Rev. 1.0.2

Features

• Output Current in Excess of 0.5A

• Output Adjustable Between 1.2V and 37V

• Internal Thermal Overload Protection

• Internal Short Circuit Current Limiting

• Outp ut Transistor Safe Area Compensation

• Floating Operation for High Voltage Applications

Description

The KA317M is a 3-Terminal adjustable positive voltage

regulator capable of supplying in excess of 500mA over an

output voltage range of 1.2V to 37V. This voltage regulator

is exceptionally easy to use and requires only two external

resistors to set the output voltage.

D-PAK

1. Adj 2. Output 3. Input

TO-220

123

Internal Block Diagram

Rlimit

3Vin

Voltage

Reference

Vad

Protection

Circuitry

Input

Output

KA317M

3-Terminal 0.5A Positive Adjusta ble Regulator

KA317M

Absolute Maximum Ratings

Electrical Characteristics

(VI-VO=5V, IO= 0.1A, 0°C ≤ TJ ≤ + 125°C, PDMAX = 7.5W, unless otherwise specified)

Note :

1. Thermal resistance test board

Size: 76.2mm * 114.3mm * 1. 6mm(1S0P)

JED E C standard: JE SD51-3, JESD51-7

2. Assume no ambient airflow.

3. Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken

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

4. CADJ, when used, is connected between the adjustment pin and ground.

Parameter Symbol Value Unit

Input Output Voltage Differential VI - VO40 V

Power Dissipation PDInternally limited W

Thermal Resistance Junction-Air

D-PAK (Note1,2) RθJA 100 °C/W

Operating Junction Temperature Range Tj0 ~ +125 °C

Storage Temperature Range TSTG -65 ~+125 °C

Parameter Symbol Conditions Min. Typ. Max. Unit

Line Regulation (Note3) Rline TA = +25°C, 3V ≤ VI −VO ≤ 40V - 0.01 0.04 %/ V

3V ≤ VI −VO ≤ 40V - 0.02 0.07

Load Regulation (Note3) Rload

TA =+ 25°C, 10mA ≤ IO ≤ 0.5A

VO ≤ 5V

VO ≥ 5V -5

0.1 25

0.5 mV

%/ VO

10mA ≤ IO ≤ 0.5A

VO ≤ 5V

VO ≥ 5V -20

0.3 70

1.5 mV

%/ VO

Adjustment Pin Current IADJ -- 50 100 uA

Adjustment Pin Current

Change ∆IADJ 3V ≤ VI - VO ≤ 40V

10mA ≤ IO ≤ 0.5A, PD < PDMAX -0.25 uA

Reference Voltage VREF 3V < VI - VO < 40V

10mA ≤ IO ≤ 0.5A, PD < PDMAX 1.20 1.25 1.30 V

Temperature Stability STT-- 0.7 - %/ VO

Minimum Load Current to

Maintain Regulation IL(MIN) VI - VO = 40V - 3.5 10 mA

Maximum Output Current IO(MAX) VI - VO ≤15V, PD < PDMAX 0.5 0.9 - A

VI - VO = 40V

PD < PDMAX, TA =+ 25°C0.15 0.25 -

RMS Noise, % of VOUT eNTA = +25°C, 10Hz < f < 10KHz - 0.003 - %/ VO

Ripple Rejection RR VO = 10V, f = 120Hz

without CADJ

CADJ = 10uF (Note4) 66 65

80 -dB

Long-Term Stability ST TJ =+ 125°C, 1000Hours - 0.3 1 %/1000Hrs

KA317M

Typica l Perfo rma nce Characteristics

Figu re 1. Minimum Load Cu rre nt Figu re 2. Pea k Ou tpu t Cu rrent vs. Input-Out pu t

Differential Voltage

Figure 3. Adjustment Pin Current vs. Temperature Figure 4. Ripple Rejection vs. Frequency

Figure 5. Load Regula tion vs. Temperature Figure 6. Line Regulation vs. Temperature

KA317M

Typica l Performance Chara cteristics (Continued)

Figu re 7. Ou tp utvoltage vs. Temperatur e Figure 8. Thermal Shutdown

KA317M

Typical Application

Figure 1. 15V Electron ic Shutd o wn Regulator

D1 protects the device during an input short circuit.

Figu re 2. Slow Tu rn-On Regulator

Figure 3. Current Regulator

Input Output

Input

Output

KA317M

Mechanical Dimensions

Package Dimensions in millimeters

4.50 ±0.20

9.90 ±0.20

1.52 ±0.10

0.80 ±0.10 2.40 ±0.20

10.00 ±0.20

1.27 ±0.10

ø3.60 ±0.10

(8.70)

2.80 ±0.1015.90 ±0.20

10.08 ±0.30 18.95MAX.

(1.70)

(3.70)(3.00)

(1.46)

(1.00)

(45°)

9.20 ±0.2013.08 ±0.20

1.30 ±0.10

1.30 +0.10

–0.05

0.50 +0.10

–0.05

2.54TYP

[2.54 ±0.20]2.54TYP

[2.54 ±0.20]

TO-220

KA317M

Mechanical Dimensions (Continued)

Package Dimensions in millimeters

6.60

±0.20

2.30

±0.10

0.50

±0.10

5.34

±0.30

0.70

±0.20

0.60

±0.20

0.80

±0.20

9.50

±0.30

6.10

±0.20

2.70

±0.20

9.50

±0.30

6.10

±0.20

2.70

±0.20

MIN0.55

0.76

±0.10

0.50

±0.10

1.02

±0.20

2.30

±0.20

6.60

±0.20

0.76

±0.10

(5.34)

(1.50)

(2XR0.25)

(5.04)

0.89

±0.10

(0.10) (3.05)

(1.00)

(0.90)

(0.70)

0.91

±0.10

2.30TYP

[2.30±0.20]

2.30TYP

[2.30±0.20]

MAX0.96

(4.34)(0.50) (0.50)

D-PAK

KA317M

3/14/02 0.0m 001

Stock#DSxxxxxxxx

 2002 Fairchild Semiconductor Corporation

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FAIRCHILD’S PRODUCTS AR E NOT AUTHORIZED FOR USE AS CRITICAL COMP ONENTS IN L IFE SUPPOR T DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

CORPORA TION. As used herein:

1. Life support devices or systems are devices or systems

which, (a ) are intended for surgical im plant into the body,

or (b) support or sustain life, and (c) whose failure to

perform when properly used in accordance with

instructions for use provided in the labeling, can be

reasonab ly expected to result in a significant injury of the

user.

2. A critical component in any component of a life support

device or system whose failure to perfo rm can be

reasonably expected to cause the failure of the life support

device or system, or to affect its safety or effec tiveness.

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DISCLAIMER

FAIRCHILD SEMI CONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRO DUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DO ES NOT ASSUME ANY

LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

DOES IT CONVEY A NY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OT HERS.

Ordering Information

Product Number Package Operating Temperature

KA317M TO-220 0 ~ 125 °C

KA317MR D-PAK

www.onsemi.com

ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

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

literature is subject to all applicable copyright laws and is not for resale in any manner.

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