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KA317M
3-Terminal 0.5A Positive Adjustable Regulator
Features
* * * * * * Output Current in Excess of 0.5A Output Adjustable Between 1.2V and 37V Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output 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
2
1
3
1. Adj 2. Output 3. Input TO-220
12 3
Internal Block Diagram
V in Input 3
+
-
V olta ge Re fe re nce
P rote ction Circ uitry
R limit
2 1 V ad j
Vo
Output
Rev. 1.0.2
(c)2002 Fairchild Semiconductor Corporation
KA317M
Absolute Maximum Ratings
Parameter Input Output Voltage Differential Power Dissipation Thermal Resistance Junction-Air D-PAK (Note1,2) Operating Junction Temperature Range Storage Temperature Range Symbol VI - VO PD RJA Tj TSTG Value 40 Internally limited 100 0 ~ +125 -65 ~+125 Unit V W C/W C C
Electrical Characteristics
(VI-VO=5V, IO= 0.1A, 0C TJ + 125C, PDMAX = 7.5W, unless otherwise specified) Parameter Line Regulation (Note3) Symbol Rline Conditions TA = +25C, 3V VI -VO 40V 3V VI -VO 40V TA =+ 25C, 10mA IO 0.5A VO 5V VO 5V 10mA IO 0.5A VO 5V VO 5V Adjustment Pin Current Adjustment Pin Current Change Reference Voltage Temperature Stability Minimum Load Current to Maintain Regulation IADJ IADJ VREF STT IL(MIN) VI - VO = 40V VI - VO 15V, PD < PDMAX Maximum Output Current IO(MAX) RMS Noise, % of VOUT Ripple Rejection Long-Term Stability eN RR ST VI - VO = 40V PD < PDMAX, TA =+ 25C TA = +25C, 10Hz < f < 10KHz VO = 10V, f = 120Hz without CADJ CADJ = 10uF (Note4) TJ =+ 125C, 1000Hours 3V VI - VO 40V 10mA IO 0.5A, PD < PDMAX 3V < VI - VO < 40V 10mA IO 0.5A, PD < PDMAX Min. Typ. 0.01 0.02 5 0.1 20 0.3 50 0.2 1.25 0.7 3.5 0.9 0.25 0.003 65 80 0.3 Max. 0.04 0.07 25 0.5 70 1.5 100 5 1.30 10 1 %/ VO dB %/1000Hrs %/ V mV %/ VO mV %/ VO uA uA V %/ VO mA A Unit
Load Regulation (Note3)
Rload
1.20 0.5 0.15 -
66 -
Note : 1. Thermal resistance test board Size: 76.2mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, 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.
2
KA317M
Typical Performance Characteristics
Figure 1. Minimum Load Current
Figure 2. Peak Output Current vs. Input-Output Differential Voltage
Figure 3. Adjustment Pin Current vs. Temperature
Figure 4. Ripple Rejection vs. Frequency
Figure 5. Load Regulation vs. Temperature
Figure 6. Line Regulation vs. Temperature
3
KA317M
Typical Performance Characteristics (Continued)
Figure 7. Outputvoltage vs. Temperature
Figure 8. Thermal Shutdown
4
KA317M
Typical Application
Input Output
Figure 1. 15V Electronic Shutdown Regulator
D1 protects the device during an input short circuit.
Input Output
Figure 2. Slow Turn-On Regulator
Input
Output
Figure 3. Current Regulator
5
KA317M
Mechanical Dimensions
Package Dimensions in millimeters
TO-220
9.90 0.20 1.30 0.10 2.80 0.10 (8.70) o3.60 0.10 (1.70) 4.50 0.20
1.30 -0.05
+0.10
9.20 0.20
(1.46)
13.08 0.20
(1.00)
(3.00)
15.90 0.20
1.27 0.10
1.52 0.10
0.80 0.10 2.54TYP [2.54 0.20] 2.54TYP [2.54 0.20]
10.08 0.30
18.95MAX.
(3.70)
(45 )
0.50 -0.05
+0.10
2.40 0.20
10.00 0.20
6
KA317M
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
D-PAK
6.60 0.20 5.34 0.30 (0.50) (4.34) (0.50)
0.70 0.20
2.30 0.10 0.50 0.10
0.60 0.20
6.10 0.20
2.70 0.20
9.50 0.30
0.91 0.10
0.80 0.20
MAX0.96 2.30TYP [2.300.20]
0.76 0.10 2.30TYP [2.300.20]
0.89 0.10
0.50 0.10 1.02 0.20 2.30 0.20
(0.70)
(0.90) (0.10) (3.05)
6.10 0.20
9.50 0.30
2.70 0.20
(2XR0.25)
0.76 0.10
7
(1.00)
6.60 0.20 (5.34) (5.04) (1.50)
MIN0.55
KA317M
Ordering Information
Product Number KA317M KA317MR Package TO-220 D-PAK Operating Temperature 0 ~ 125 C
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant 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 reasonably expected to result in a significant injury of the user.
www.fairchildsemi.com 3/14/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

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