LM117/LM217/LM V to 37V Adjustable voltage regulators. Feature summary. Description. Order code

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1 1.2V to 37V Adjustable voltage regulators Feature summary Output voltage range: 1.2 to 37V Output current in excess of 1.5A 0.1% Line and load regulation Floating operation for high voltages Complete series of protections: current limiting, thermal shutdown and SOA control Description The are monolithic integrated circuit in TO-220, TO-220FP, TO-3 and D 2 PAK packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5A of load current with an output voltage adjustable over a 1.2 to 37V range. The nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators. TO-220 D 2 PAK TO-220FP TO-3 Order code Part number Package TO-220 D 2 PAK TO-220FP TO-3 LM117 LM117K LM217 LM217T LM217D2T LM217K LM317 LM317T LM317D2T LM317P LM317K January 2007 Rev. 11 1/

2 Contents 1 Pin configuration Maximum ratings Diagram Electrical characteristics Typical characteristics Application information Package mechanical data Revision history /25

3 Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) TO-220 TO220FP D 2 PAK (Any Type) TO-3 3/25

4 汇集 8,000 家半导体厂商, 坐拥 70,000,000 个电子元器件 datasheet 涉及详细参数, 器件封装应用图, 参考设计, 中文 PDF 工程师首选 datasheet 全球数据中心, 你能想到我们就能搜到集成电路查询网 : 国内唯一一家电路图分享交易平台, 让电路体现你电子行业的价值聚焦万量级热门免费电路, 哪怕你是一个初学者, 手把手教你创造出实物电路城 : 百万电子行业工程师 ( 创客 ) 知识交流平台, 电路图免费分享乐园百万精品电路图为你倾心准备工程师的驿站技术达人停泊的港湾电子电路图网 : 依托全球电子业 16 年的 Findchips 充当幕后器件搜索引擎国内首家实时 BOM 批量比价平台, 让你站在最高的舞台纵观电子行业批量器件比价 : 版权所有 Datasheet5 集成电路查询网

5 Maximum ratings 2 Maximum ratings Table 1. Absolute maximum ratings Symbol Parameter Value Unit V I - V O Input-Reference Differential Voltage 40 I O Output Current Internally Limited V LM to 150 T op Operating Junction Temperature for: LM to 150 C LM317 0 to 125 P tot Power Dissipation Internally Limited T stg Storage Temperature -65 to 150 C Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Table 2. Thermal Data Symbol Parameter D 2 PAK TO-220 TO-220FP TO-3 Unit R thjc Thermal resistance junction-case C/W R thja Thermal resistance junction-ambient C/W 4/25

6 Diagram 3 Diagram Figure 2. Schematic diagram 5/25

7 Electrical characteristics 4 Electrical characteristics Table 3. Electrical characteristics for LM117/LM217 (V I - V O = 5 V, I O = 500 ma, I MAX = 1.5 A and P MAX = 20 W, T J = -55 to 150 C for LM117, T J = -25 to 150 C for LM217, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit V O Line regulation V I - V O = 3 to 40 V T J = 25 C V O 5 V T J = 25 C 5 15 V O Load regulation I O = 10 ma to I MAX V O 5 V, T J = 25 C I O = 10 ma to I MAX I ADJ Adjustment pin current µa I ADJ Adjustment pin current V I - V O = 2.5 to 40V I O = 10 ma to I MAX µa V REF Reference voltage (between pin 3 and pin 1) V I - V O = 2.5 to 40V I O = 10 ma to I MAX P D P MAX V V O /V O Output voltage temperature stability 1 % I O(min) Minimum load current V I - V O = 40 V ma I O(max) en Maximum load current Output noise voltage (percentage of V O ) SVR Supply voltage rejection (1) 1. C ADJ is connected between pin 1 and ground. V I - V O 15 V, P D < P MAX V I - V O = 40 V, P D < P MAX, T J = 25 C 0.4 B = 10Hz to 100KHz, T J = 25 C % T J = 25 C, f = 120Hz C ADJ =0 65 C ADJ =10µF %/V mv % A db 6/25

8 Electrical characteristics Table 4. Electrical characteristics for LM317 (V I - V O = 5 V, I O = 500 ma, I MAX = 1.5 A and P MAX = 20 W, T J = 0 to 125 C, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit V O Line regulation V I - V O = 3 to 40 V T J = 25 C V O 5 V T J = 25 C 5 25 V O Load regulation I O = 10 ma to I MAX V O 5 V, T J = 25 C I O = 10 ma to I MAX I ADJ Adjustment pin current µa I ADJ Adjustment pin current V I - V O = 2.5 to 40V I O = 10 ma to I MAX µa V REF Reference voltage (between pin 3 and pin 1) V I - V O = 2.5 to 40V I O = 10 ma to I MAX P D P MAX V V O /V O Output voltage temperature stability 1 % I O(min) Minimum load current V I - V O = 40 V ma I O(max) en Maximum load current Output noise voltage (percentage of V O ) SVR Supply voltage rejection (1) T J = 25 C, f = 120Hz 1. C ADJ is connected between pin 1 and ground. V I - V O 15 V, P D < P MAX V I - V O = 40 V, P D < P MAX, T J = 25 C 0.4 B = 10Hz to 100KHz, T J = 25 C % C ADJ =0 65 C ADJ =10µF %/V mv % A db 7/25

9 Typical characteristics 5 Typical characteristics Figure 3. Output current vs input-output differential voltage Figure 4. Dropout voltage vs junction temperature Figure 5. Reference voltage vs junction Figure 6. Basic adjustable regulator 8/25

10 Application information 6 Application information The LM117/217/317 provides an internal reference voltage of 1.25V between the output and adjustments terminals. This is used to set a constant current flow across an external resistor divider (see Figure 3.), giving an output voltage V O of: V O = V REF (1 + R 2 /R 1 ) + I ADJ R 2 The device was designed to minimize the term I ADJ (100µA max) and to maintain it very constant with line and load changes. Usually, the error term I ADJ R 2 can be neglected. To obtain the previous requirement, all the regulator quiescent current is returned to the output terminal, imposing a minimum load current condition. If the load is insufficient, the output voltage will rise. Since the LM117/ is a floating regulator and "sees" only the input-tooutput differential voltage, supplies of very high voltage with respect to ground can be regulated as long as the maximum input-to-output differential is not exceeded. Furthermore, programmable regulator are easily obtainable and, by connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator. In order to optimize the load regulation, the current set resistor R 1 (see Figure 3.) should be tied as close as possible to the regulator, while the ground terminal of R 2 should be near the ground of the load to provide remote ground sensing. Performance may be improved with added capacitance as follow: An input bypass capacitor of 0.1µF An adjustment terminal to ground 10µF capacitor to improve the ripple rejection of about 15 db (CADJ). An 1µF tantalum (or 25µF Aluminium electrolytic) capacitor on the output to improve transient response. In additional to external capacitors, it is good practice to add protection diodes, as shown in Figure 4. D1 protect the device against input short circuit, while D2 protect against output short circuit for capacitance discharging. Figure 7. Voltage regulator with protection diodes Note: D1 protect the device against input short circuit, while D2 protects against output short circuit for capacitors discharging. 9/25

11 Application information Figure 8. Slow Turn-on 15V Regulator Figure 9. Current regulator I O = (V ref /R 1 ) + I ADJ = 1.25V/R 1 Figure 10. 5V Electronic shut-down regulator 10/25

12 Application information Figure 11. Digitally selected outputs (R 2 sets maximum V O ) Figure 12. Battery charger (12V) * R S sets output impedance of charger Z O = R S (1 + R 2 /R 1 ). Use of R S allows low charging rates whit fully charged battery. 11/25

13 Application information Figure 13. Current limited 6V Charger * R3 sets peak current (0.6A for 1 0). ** C1 recommended to filter out input transients. 12/25

14 Package mechanical data 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: 13/25

15 Package mechanical data TO-3 MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A B C D E G N P R U V P G A D C N O U V B E R P003C/C 14/25

16 Package mechanical data TO-220 (A TYPE) MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A b b c D E e e F H J L L L L φp Q /N 15/25

17 Package mechanical data TO-220 (C TYPE) MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A b b c D E e e F H J L L L L φp Q /N 16/25

18 Package mechanical data TO-220 (E TYPE) MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A b b c D E e e F H J L L L φp Q /A 17/25

19 Package mechanical data TO-220FP MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A B D E F F F G G H L L L L L L DIA A-H 18/25

20 Package mechanical data Figure 14. DRAWING DIMENSION D 2 PAK (TYPE STD-ST) /L 19/25

21 Package mechanical data Figure 15. DRAWING DIMENSION D 2 PAK (TYPE WOOSEOK-SUBCON.) /L 20/25

22 Package mechanical data Table 5. DIM. D 2 PAK MECHANICAL DATA TYPE STD-ST mm. TYPE WOOSEOK-SUBCON. mm. MIN. TYP. MAX. MIN. TYP. MAX. A A b b c c D D E E e e H J L L L R V Note: The D 2 PAK package coming from the subcontractor Wooseok is fully compatible with the ST's package suggested footprint. 21/25

23 Package mechanical data Figure 16. D 2 PAK FOOTPRINT RECOMMENDED DATA Table 6. FOOTPRINT DATA VALUES mm. inch. A B C D E F G /25

24 Package mechanical data Tape & Reel D 2 PAK-P 2 PAK-D 2 PAK/A-P 2 PAK/A MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A C D N T Ao Bo Ko Po P /25

25 Revision history 8 Revision history Table 7. Revision history Date Revision Changes 01-Sep Mistake V REF ==> V O, tables 1, 4 and Jan D 2 PAK mechanical data has been updated, add footprint data and the document has been reformatted. 24/25

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27 汇集 8,000 家半导体厂商, 坐拥 70,000,000 个电子元器件 datasheet 涉及详细参数, 器件封装应用图, 参考设计, 中文 PDF 工程师首选 datasheet 全球数据中心, 你能想到我们就能搜到集成电路查询网 : 国内唯一一家电路图分享交易平台, 让电路体现你电子行业的价值聚焦万量级热门免费电路, 哪怕你是一个初学者, 手把手教你创造出实物电路城 : 百万电子行业工程师 ( 创客 ) 知识交流平台, 电路图免费分享乐园百万精品电路图为你倾心准备工程师的驿站技术达人停泊的港湾电子电路图网 : 依托全球电子业 16 年的 Findchips 充当幕后器件搜索引擎国内首家实时 BOM 批量比价平台, 让你站在最高的舞台纵观电子行业批量器件比价 : 版权所有 Datasheet5 集成电路查询网

Order codes. TO-220 D²PAK (tape and reel) TO-220FP TO-3 LM117K LM217T LM217D2T-TR LM217K LM317T LM317D2T-TR LM317P LM317K

Order codes. TO-220 D²PAK (tape and reel) TO-220FP TO-3 LM117K LM217T LM217D2T-TR LM217K LM317T LM317D2T-TR LM317P LM317K LM117 LM217, LM317 1.2 V to 37 V adjustable voltage regulators Features Output voltage range: 1.2 to 37 V Output current in excess of 1.5 A 0.1 % line and load regulation Floating operation for high voltages