LM217M, LM317M. Medium current 1.2 to 37 V adjustable voltage regulator. Description. Features
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1 Medium current 1.2 to 37 V adjustable voltage regulator Datasheet - production data Description The LM217M and LM317M are monolithic integrated circuits in DPAK package used as positive adjustable voltage regulators. They are designed to supply until 500 ma of load current with an output voltage adjustable over a 1.2 to 37 V range. The nominal output voltage is selected by one resistive divider only, making the device exceptionally easy to configure and avoiding the use of several fixed regulators. Features Output voltage range: 1.2 to 37 V Output current in excess of 500 ma Line regulation typ. 0.01% Load regulation typ. 0.1% Thermal overload protection Short-circuit protection Output transition safe area compensation Floating operation for high voltage applications Order code LM217MDT-TR LM317MDT-TR Table 1: Device summary Packing Tape and reel October 2015 DocID2577 Rev 9 1/19 This is information on a product in full production.
2 Contents LM217M, LM317M Contents 1 Diagram Pin configuration Maximum ratings Electrical characteristics Typical performance Application information External capacitors Protection diodes Start-up block Application circuits Package information DPAK (TO-252) package information DPAK (TO-252) packing information Revision history /19 DocID2577 Rev 9
3 Diagram 1 Diagram Figure 1: Schematic diagram DocID2577 Rev 9 3/19
4 Pin configuration LM217M, LM317M 2 Pin configuration Figure 2: Pin connections (top view) 4/19 DocID2577 Rev 9
5 Maximum ratings 3 Maximum ratings Table 2: Absolute maximum ratings Symbol Parameter Value Unit VI-VO Input-to-output differential voltage 40 V PD Power dissipation Internally limited mw TOP Operating junction temperature range (1) LM217M -40 to 125 C LM317M 0 to 125 TSTG Storage temperature range -55 to 150 C Notes: (1) Reboot is not guaranteed for TJ 85 C. Table 3: Thermal data Symbol Parameter DPAK Unit RthJC Thermal resistance junction-case 8 C/W RthJA Thermal resistance junction-ambient 100 C/W Figure 3: Test circuit DocID2577 Rev 9 5/19
6 Electrical characteristics LM217M, LM317M 4 Electrical characteristics Refer to the test circuits, TJ = - 40 to 125 C, VI - VO = 5 V, IO = 100 ma, PD 7.5 Ω, unless otherwise specified. Table 4: LM217M electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit ΔVO Line regulation VI - VO = 3 to 40 V TJ = 25 C %/V ΔVO Load regulation VO 5 V IO = 10 to 500 ma VO 5 V TJ = 25 C 5 15 mv TJ = 25 C %/VO IO = 10 to 500 ma IADJ Adjustment pin current µa ΔIADJ Adjustment pin current VI - VO = 3 to 40 V, IO = 10 to 500 ma µa VREF Reference voltage VI - VO = 3 to 40 V, IO = 10 to 500 ma V ΔVO/VO Output voltage temperature stability 0.7 % IO(min) IO(max) Minimum load current Maximum output current VI - VO = 40 V ma VI - VO 15 V VI - VO = 40 V, Pd < PDMAX, TJ = 25 C 200 ma en Output noise voltage (percentage of VO) B = 10 Hz to 100 khz, TJ = 25 C % SVR Supply voltage rejection (1) TJ = 25 C f = 120 Hz CADJ = 0 65 CADJ = 10 µf db Notes: (1) CADJ is connected between the adjustment pin and ground. 6/19 DocID2577 Rev 9
7 Electrical characteristics Refer to the test circuits, TJ = 0 to 125 C, VI - VO = 5 V, IO = 100 ma, PD 7.5 Ω, unless otherwise specified. Table 5: LM317M electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit ΔVO Line regulation VI - VO = 3 to 40 V TJ = 25 C %/V ΔVO Load regulation VO 5 V IO = 10 to 500 ma VO 5 V IO = 10 to 500 ma TJ = 25 C TJ = 25 C mv %/VO IADJ Adjustment pin current µa ΔIADJ Adjustment pin current VI - VO = 3 to 40 V, IO = 10 to 500 ma µa VREF Reference voltage VI - VO = 3 to 40 V, IO = 10 to 500 ma V ΔVO/VO Output voltage temperature stability 0.7 % IO(min) IO(max) Minimum load current Maximum output current VI - VO = 40 V ma VI - VO 15 V VI - VO = 40 V, Pd < PDMAX, TJ = 25 C 200 ma en Output noise voltage (VO percentage) B = 10 Hz to 100 khz, TJ = 25 C % SVR Supply voltage rejection (1) TJ = 25 C f = 120 Hz CADJ = 0 65 CADJ = 10 µf db Notes: (1) CADJ is connected between the adjustment pin and ground. DocID2577 Rev 9 7/19
8 Typical performance LM217M, LM317M 5 Typical performance Figure 4: Current limit Figure 5: Minimum operating current Figure 6: Basic adjustable regulator 8/19 DocID2577 Rev 9
9 Typical performance Figure 7: Thermal resistance and maximum power dissipation vs. PCB copper length for DPAK Pdmax calculated for Ta = 50 C. DocID2577 Rev 9 9/19
10 Application information LM217M, LM317M 6 Application information The LM217M and LM317M provide an internal reference voltage (1.25 V) between the output and adjustment terminals. These devices set a constant current flow across an external resistor divider (see Figure 6: "Basic adjustable regulator"), giving the following output voltage: Equation 1 VO = VREF (1 + R2 / R1) + IADJ R2 These devices minimize the term IADJ (100 µa max.) and keep it constant with line and load changes. Usually, the error terms: IADJ R2 can be neglected. To obtain the previous requirement, the regulator quiescent current is returned to the output terminal, imposing a minimum load current condition. If the load is insufficient, the output voltage rises. Since the LM217M and LM317M devices are floating regulators and only see the input-tooutput differential voltage, high voltage supplies can be regulated as long as the maximum input-to-output differential is not exceeded. Furthermore, programmable regulators are easily obtained and, by connecting a fixed resistor between the adjustment and output, the devices can be used as precision current regulators. In order to optimize the load regulation, R1, the current set resistor (see Figure 6: "Basic adjustable regulator") should be as closer as possible to the regulator, while R2, the ground terminal should be near the ground of the load to provide remote ground sensing. 6.1 External capacitors Usually, capacitors are not necessary unless the devices are far from the input filter capacitors; in this case an input bypass is needed. To reduce the sensitivity to input line impedance, a 0.1 µf disc or 1 µf tantalum input bypass capacitor (CI) is recommended. The adjustment terminal may be bypassed to ground to improve ripple rejection. This capacitor (CADJ) avoids the amplification of ripple as the output voltage rises. A 10 µf capacitor should improve ripple rejection about 80 db at 120 Hz in a 10 V application. Although the devices are stable without any output capacitors, some external capacitance values can cause excessive ringing. A 1 µf solid tantalum or 25 µf aluminum electrolytic output capacitor swamps this effect and assures stability. 6.2 Protection diodes When external capacitors are used with any IC regulator, sometimes some protection diodes have to be added to prevent the capacitors from discharging through low current points into the regulator. Figure 8: "Voltage regulator with protection diodes" shows the devices with the recommended protection diodes for output voltages in excess of 25 V or high capacitance values (C3 > 25 µf, C2 > 10 µf). Diode D1 prevents C3 from discharging through the IC during an input short-circuit. The combination of diodes D1 and D2 prevents C2 from discharging through the regulator during an input or output short-circuit. 6.3 Start-up block Reboot of the device is not guaranteed when the junction temperature is over 85 C. 10/19 DocID2577 Rev 9
11 Application circuits 7 Application circuits Figure 8: Voltage regulator with protection diodes Figure 9: Slow turn-on 15 V regulator Figure 10: Current regulator DocID2577 Rev 9 11/19
12 Application circuits Figure 11: 5 V electronic shutdown regulator LM217M, LM317M Figure 12: Digitally selected outputs 12/19 DocID2577 Rev 9
13 Package information 8 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: ECOPACK is an ST trademark. 8.1 DPAK (TO-252) package information Figure 13: DPAK (TO-252) package outline DocID2577 Rev 9 13/19
14 Package information LM217M, LM317M Table 6: DPAK (TO-252) mechanical data mm Dim. Min. Typ. Max. A A A b b c c D D E E e 2.28 e H L (L1) 2.80 L L R 0.20 V /19 DocID2577 Rev 9
15 Package information Figure 14: DPAK (TO-252) recommended footprint (dimensions are in mm) DocID2577 Rev 9 15/19
16 Package information 8.2 DPAK (TO-252) packing information Figure 15: DPAK (TO-252) tape outline LM217M, LM317M 16/19 DocID2577 Rev 9
17 Figure 16: DPAK (TO-252) reel outline Package information Table 7: DPAK (TO-252) tape and reel mechanical data Tape Reel Dim. mm mm Dim. Min. Max. Min. Max. A A 330 B B 1.5 B C D D 20.2 D1 1.5 G E N 50 F T 22.4 K P Base qty P Bulk qty P R 40 T W DocID2577 Rev 9 17/19
18 Revision history LM217M, LM317M 9 Revision history Table 8: Document revision history Date Revision Changes 21-Jun The document has been reformatted. 06-Dec DPAK mechanical data updated, added footprint data. 11-Feb Added: Table 1 on page Jul Oct Updated Table 1: Device summary. Updated Section 8.1: TO-220 and Section 8.2: DPAK. Updated Figure 3, Figure 6, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12. Minor text changes. Removed TO-220 package. Updated description in cover page, Table 1: "Device summary", Figure 2: "Pin connections (top view)", Table 3: "Thermal data" and Section 8: "Package information". Minor text changes. 18/19 DocID2577 Rev 9
19 IMPORTANT NOTICE PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries ( ST ) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document STMicroelectronics All rights reserved DocID2577 Rev 9 19/19
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L6219. Stepper motor driver. Features. Description
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STB75NF75 STP75NF75 - STP75NF75FP
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STTH2R06. High efficiency ultrafast diode. Features. Description
STTH2R6 High efficiency ultrafast diode Features Very low conduction losses Negligible switching losses Low forward and reverse recovery times High junction temperature Description A K The STTH2R6 uses
VN03. ISO high side smart power solid state relay PENTAWATT. Features. Description. www.tvsat.com.pl
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TS321 Low Power Single Operational Amplifier
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unit : mm With heat sink (see Pd Ta characteristics)
Ordering number: EN1321E Monolithic Linear IC LA4261 3.5 W 2-Channel AF Power Amplifier for Home Stereos and Music Centers Features. Minimum number of external parts required (No input capacitor, bootstrap
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STP60NF06FP. N-channel 60V - 0.014Ω - 30A TO-220FP STripFET II Power MOSFET. General features. Description. Internal schematic diagram.
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NE555 SA555 - SE555. General-purpose single bipolar timers. Features. Description
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BD135 - BD136 BD139 - BD140
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LM79XX Series 3-Terminal Negative Regulators
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BD238. Low voltage PNP power transistor. Features. Applications. Description. Low saturation voltage PNP transistor
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Equivalent Circuit. Operating Characteristics at Ta = 25 C, V CC = ±34V, R L = 8Ω, VG = 40dB, Rg = 600Ω, R L : non-inductive load STK4181V
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DSL01-xxxSC5. Secondary protection for DSL lines. Features. Description. Applications. Benefits. Complies with the following standards
-xxxsc5 Secondary protection for DSL lines Features Low capacitance devices: -xxxsc5: Delta C typ = 3.5 pf High surge capability: 30 A - 8/20 µs Voltage: 8 V, 10.5 V, 16 V, and 24 V RoHS package Benefits
µa7800 SERIES POSITIVE-VOLTAGE REGULATORS
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1.5A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed) LM1086
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