LD1117XX

LD1117xx Adjustable and fixed low drop positive voltage regulator Features ■ ■ ■ ■ ■ ■ ■ ■ Low dropout voltage (1 V typ.) 2.85 V device performances are suitable for SCSI-2 active termination Output current up to 800 mA Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 5.0 V Adjustable version availability (Vref = 1.25 V) Internal current and thermal limit Available in ± 1% (at 25 °C) and 2% in full temperature range Supply voltage rejection: 75 dB (typ.) High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the quiescent current flows mostly into the load. Only a very common 10 µF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25°C. The adjustable LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of drop and tolerance. SOT-223 SO-8 DPAK TO-220 Description The LD1117 is a low drop voltage regulator able to provide up to 800 mA of output current, available even in adjustable version (VREF = 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.0 V, 3.3 V and 5.0 V. The 2.85 V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220. The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. Table 1. Device summary Part numbers LD1117XX12 LD1117XX12C LD1117XX18 LD1117XX18C LD1117XX25 LD1117XX25C LD1117XX30 LD1117XX33 LD1117XX33C LD1117XX50 LD1117XX50C LD1117XX LD1117XXC March 2010 Doc ID 2572 Rev 28 1/42 www.st.com 42 Contents LD1117xx Contents 1 2 3 4 5 6 7 8 9 10 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 LD1117 adjustable: application note . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 2/42 Doc ID 2572 Rev 28 LD1117xx List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics of LD1117#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics of LD1117#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics of LD1117#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical characteristics of LD1117#30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of LD1117#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of LD1117#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of LD1117 (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of LD1117#12C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics of LD1117#18C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics of LD1117#25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics of LD1117#33C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics of LD1117#50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical characteristics of LD1117C (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 TO-220 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 DPAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Doc ID 2572 Rev 28 3/42 List of figures LD1117xx List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application circuit (for 1.2 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Application circuit (for other fixed output voltages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Negative supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Active terminator for SCSI-2 bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Voltage regulator with reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Battery backed-up regulated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Post-regulated dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Adjustable output voltage application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 25 Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 28 Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 29 Drawing dimension DPAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Drawing dimension DPAK (type Fujitsu-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Drawing dimension DPAK (type IDS-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 DPAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4/42 Doc ID 2572 Rev 28 LD1117xx Diagram 1 Figure 1. Diagram Block diagram Doc ID 2572 Rev 28 5/42 Pin configuration LD1117xx 2 Figure 2. Pin configuration Pin connections (top view) SOT-223 SO-8 DPAK TO-220 Note: The TAB is connected to the VOUT. 6/42 Doc ID 2572 Rev 28 LD1117xx Maximum ratings 3 Table 2. Symbol VIN (1) Maximum ratings Absolute maximum ratings Parameter DC input voltage Power dissipation Storage temperature range for C Version TOP Operating junction temperature range for standard Version 0 to +125 °C Value 15 12 -40 to +150 -40 to +125 Unit V W °C °C PTOT TSTG 1. Absolute maximum rating of VIN = 18 V, when IOUT is lower than 20 mA. Table 3. Symbol RthJC RthJA Thermal data Parameter Thermal resistance junction-case Thermal resistance junction-ambient SOT-223 15 SO-8 20 DPAK 8 TO-220 3 50 Unit °C/W °C/W Doc ID 2572 Rev 28 7/42 Schematic application LD1117xx 4 Figure 3. Schematic application Application circuit (for 1.2 V) Figure 4. Application circuit (for other fixed output voltages) 8/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics 5 Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, R = 120 Ω between GND and OUT pins, unless otherwise specified. Table 4. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Iadj ΔIadj IO(min) IO eN SVR Electrical characteristics of LD1117#12 Parameter Output voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Adjustment pin current change Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin ≤ 15 V Vin - VO = 1.4 to 10 V IO = 10 to 800 mA Vin = 15 V Vin - VO = 5 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA 60 800 60 1 2 950 0.003 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V 1000 hrs, TJ = 125 °C Test condition Vin = 3.2 V, IO = 10 mA, TJ = 25 °C IO = 10 to 800 mA Vin - VO = 1.4 to 10 V Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA Min. 1.188 1.140 Typ. 1.20 1.20 0.035 0.1 0.5 0.3 15 120 5 5 1300 Max. 1.212 1.260 0.2 0.4 Unit V V % % % % V µA µA mA mA % dB Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 9/42 Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified. Table 5. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#18 Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 8 V Vin = 6.8 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test condition Vin = 3.8 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 3.3 to 8 V Vin = 3.3 to 8 V, IO = 0 mA Vin = 3.3 V, IO = 0 to 800 mA Min. 1.78 1.76 1 1 0.5 0.3 15 10 1300 Typ. 1.8 Max. 1.82 1.84 6 10 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse 10/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified. Table 6. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#25 Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 10 V Vin = 7.5 V TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test condition Vin = 4.5 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 3.9 to 10 V Vin = 3.9 to 10 V, IO = 0 mA Vin = 3.9 V, IO = 0 to 800 mA Min. 2.475 2.45 1 1 0.5 0.3 15 10 1300 Typ. 2.5 Max. 2.525 2.55 6 10 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 11/42 Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified. Table 7. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#30 Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 12 V Vin = 8 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 6 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test condition Vin = 5 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 4.5 to 10 V Vin = 4.5 to 12 V, IO = 0 mA Vin = 4.5 V, IO = 0 to 800 mA Min. 2.97 2.94 1 1 0.5 0.3 15 10 1300 Typ. 3 Max. 3.03 3.06 6 10 Unit V V mV mV % % V mA mA µF dB Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse 12/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified. Table 8. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#33 Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 15 V Vin = 8.3 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 6.3 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test condition Vin = 5.3 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 4.75 to 10 V Vin = 4.75 to 15 V, IO = 0 mA Vin = 4.75 V, IO = 0 to 800 mA Min. 3.267 3.235 1 1 0.5 0.3 15 10 1300 Typ. 3.3 Max. 3.333 3.365 6 10 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 13/42 Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified. Table 9. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#50 Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 15 V Vin = 10 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 8 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test condition Vin = 7 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 6.5 to 15 V Vin = 6.5 to 15 V, IO = 0 mA Vin = 6.5 V, IO = 0 to 800 mA Min. 4.95 4.9 1 1 0.5 0.3 15 10 1300 Typ. 5 Max. 5.05 5.1 10 15 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse 14/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified. Table 10. Symbol Vref Vref ΔVO ΔVO ΔVO ΔVO Vin Iadj ΔIadj IO(min) IO eN SVR Electrical characteristics of LD1117 (adjustable) Parameter Reference voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Vin ≤ 15 V 60 1 2 800 950 0.003 60 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V 1000 hrs, TJ = 125 °C Test condition Vin - VO = 2 V, IO = 10 mA, TJ = 25 °C Min. 1.238 Typ. 1.25 Max. 1.262 1.275 0.035 0.1 0.5 0.3 15 120 5 5 1300 0.2 0.4 Unit V V % % % % V µA µA mA mA % dB IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V 1.225 Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin = 15 V Vin - VO = 5 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 15/42 Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, R = 120 Ω between GND and OUT pins, unless otherwise specified. Table 11. Symbol Vref Vref ΔVO ΔVO ΔVO ΔVO Vin Iadj ΔIadj IO(min) IO eN SVR Electrical characteristics of LD1117#12C Parameter Reference voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Adjustment pin current change Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin ≤ 15 V Vin - VO = 1.4 to 10 V IO = 10 to 800 mA Vin = 15 V Vin - VO = 5 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125 °C 60 800 60 1 2 950 0.003 75 1 1.05 1.10 0.01 1.1 1.2 1.3 0.1 %/W V 1000 hrs, TJ = 125 °C Test condition Vin - VO = 2 V, IO = 10 mA, TJ = 25 °C IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA 0.5 0.3 15 120 5 5 1300 Min. 1.176 1.120 Typ. 1.20 1.20 Max. 1.224 1.280 1 1 Unit V V % % % % V µA µA mA mA % dB Vd Dropout voltage IO = 500 mA, TJ = 0 to 125 °C IO = 800 mA, TJ = 0 to 125 °C Thermal regulation Ta = 25 °C, 30 ms Pulse 16/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified. Table 12. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#18C Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 8 V Vin = 6.8 V TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125 °C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test condition Vin = 3.8 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 3.9 to 10 V Vin = 3.3 to 8 V, IO = 0 mA Vin = 3.3 V, IO = 0 to 800 mA Min. 1.76 1.73 1 1 0.5 0.3 15 10 1300 Typ. 1.8 Max. 1.84 1.87 30 30 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA, TJ = 0 to 125 °C IO = 800 mA, TJ = 0 to 125 °C IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 17/42 Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified. Table 13. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#25C Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 10 V Vin = 7.5 V TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125 °C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test condition Vin = 4.5 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 3.9 to 10 V Vin = 3.9 to 10 V, IO = 0 mA Vin = 3.9 V, IO = 0 to 800 mA Min. 2.45 2.4 1 1 0.5 0.3 15 10 1300 Typ. 2.5 Max. 2.55 2.6 30 30 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA, TJ = 0 to 125 °C IO = 800 mA, TJ = 0 to 125 °C IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse 18/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified. Table 14. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#33C Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 15 V Vin = 8.3 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 6.3 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125 °C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test condition Vin = 5.3 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 4.75 to 10 V Vin = 4.75 to 15 V, IO = 0 mA Vin = 4.75 V, IO = 0 to 800 mA Min. 3.24 3.16 1 1 0.5 0.3 15 10 1300 Typ. 3.3 Max. 3.36 3.44 30 30 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA, TJ = 0 to 125 °C IO = 800 mA, TJ = 0 to 125 °C IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 19/42 Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified. Table 15. Symbol VO VO ΔVO ΔVO ΔVO ΔVO Vin Id IO eN SVR Electrical characteristics of LD1117#50C Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125 °C IO = 100 mA Vin ≤ 15 V Vin = 10 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin = 8 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125 °C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test condition Vin = 7 V, IO = 10 mA, TJ = 25 °C IO = 0 to 800 mA, Vin = 6.5 to 15 V Vin = 6.5 to 15 V, IO = 0 mA Vin = 6.5 V, IO = 0 to 800 mA Min. 4.9 4.8 1 1 0.5 0.3 15 10 1300 Typ. 5 Max. 5.1 5.2 50 50 Unit V V mV mV % % V mA mA µV dB Vd Dropout voltage IO = 500 mA, TJ = 0 to 125 °C IO = 800 mA, TJ = 0 to 125 °C IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse 20/42 Doc ID 2572 Rev 28 LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified. Table 16. Symbol Vref Vref ΔVO ΔVO ΔVO ΔVO Vin Iadj ΔIadj IO(min) IO eN SVR Electrical characteristics of LD1117C (adjustable) Parameter Reference voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Vin ≤ 15 V 60 1 2 800 950 0.003 60 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V 1000 hrs, TJ = 125 °C Test condition Vin - VO = 2 V, IO = 10 mA, TJ = 25 °C IO = 10 to 800 mA, Vin - VO= 1.4 to 10 V Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA 0.5 0.3 15 120 10 5 1300 Min. 1.225 1.2 Typ. 1.25 Max. 1.275 1.3 1 1 Unit V V % % % % V µA µA mA mA % dB Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin = 15 V Vin - VO = 5 V, TJ = 25 °C B = 10 Hz to 10 kHz, TJ = 25 °C IO = 40 mA, f = 120 Hz, TJ = 25 °C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125 °C Vd Dropout voltage IO = 500 mA, TJ = 0 to 125 °C IO = 800 mA, TJ = 0 to 125 °C IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25 °C, 30 ms Pulse Doc ID 2572 Rev 28 21/42 Typical application LD1117xx 6 Figure 5. Typical application Negative supply Figure 6. Active terminator for SCSI-2 bus Figure 7. Circuit for increasing output voltage 22/42 Doc ID 2572 Rev 28 LD1117xx Typical application Figure 8. Voltage regulator with reference Figure 9. Battery backed-up regulated supply Doc ID 2572 Rev 28 23/42 Typical application Figure 10. Post-regulated dual supply LD1117xx 24/42 Doc ID 2572 Rev 28 LD1117xx LD1117 adjustable: application note 7 LD1117 adjustable: application note The LD1117 adjustable has a thermal stabilized 1.25 ± 0.012 V reference voltage between the OUT and ADJ pins. IADJ is 60 µA typ. (120 µA max.) and ΔIADJ is 1 µA typ. (5 µA max.). R1 is normally fixed to 120 Ω. From Figure 10 we obtain: VOUT = VREF + R2 (IADJ +IR1) = VREF + R2 (IADJ +VREF /R1) = VREF (1 + R2 / R1) + R2 x IADJ. In normal application R2 value is in the range of few kΩ, so the R2 x IADJ product could not be considered in the VOUT calculation; then the above expression becomes: VOUT = VREF (1 + R2 / R1). In order to have the better load regulation it is important to realize a good Kelvin connection of R1 and R2 resistors. In particular R1 connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be placed as near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10 µF electrolytic capacitor placed in parallel to the R2 resistor (see Figure 11). Figure 11. Adjustable output voltage application Figure 12. Adjustable output voltage application with improved ripple rejection Doc ID 2572 Rev 28 25/42 Package mechanical data LD1117xx 8 Package mechanical data 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: www.st.com. ECOPACK® is an ST trademark. Table 17. TO-220 mechanical data Type STD - ST Dual Gauge Type STD - ST Single Gauge mm. Max. 4.60 0.88 1.70 0.70 15.75 1.27 10.00 2.40 4.95 1.23 6.20 2.40 13.00 3.50 16.40 28.90 3.75 2.65 3.85 2.95 3.75 2.65 10.40 2.70 5.15 1.32 6.60 2.72 14.00 3.93 10.00 2.40 4.95 0.51 6.20 2.40 13.00 3.50 16.40 28.90 3.85 2.95 10.40 2.70 5.15 0.60 6.60 2.72 14.00 3.93 Min. 4.40 0.61 1.14 0.48 15.25 Typ. Max. 4.60 0.88 1.70 0.70 15.75 Dim. Min. A b b1 c D D1 E e e1 F H1 J1 L L1 L20 L30 ∅P Q 4.40 0.61 1.14 0.48 15.25 mm. Typ. In spite of some difference in tolerances, the packages are compatible. 26/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data Figure 13. Drawing dimension TO-220 (type STD-ST Dual Gauge) 0015988_S Note: 1 2 Maximum resin gate protrusion: 0.5 mm. Resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical. Doc ID 2572 Rev 28 27/42 Package mechanical data LD1117xx Figure 14. Drawing dimension TO-220 (type STD-ST Single Gauge) 8174627_B 28/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data Figure 15. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 16. Drawing dimension tube for TO-220 Single Gauge (mm.) Doc ID 2572 Rev 28 29/42 Package mechanical data LD1117xx SOT-223 mechanical data mm. Dim. Min. A A1 B B1 c D e e1 E H V 3.3 6.7 0.02 0.6 2.9 0.24 6.3 0.7 3 0.26 6.5 2.3 4.6 3.5 7 3.7 7.3 10° 129.9 263.8 Typ. Max. 1.8 0.1 0.85 3.15 0.35 6.7 0.8 23.6 114.2 9.4 248.0 27.6 118.1 10.2 255.9 90.6 181.1 137.8 275.7 145.7 287.5 10° Min. Typ. Max. 70.9 3.9 33.5 124.0 13.8 263.8 mils. 0046067/H 30/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data SO-8 mechanical data Dim. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. Min. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 8° (max.) 0.04 0.228 0.010 0.016 Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 Min. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch. Typ. Max. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0016023/C Doc ID 2572 Rev 28 31/42 Package mechanical data LD1117xx Figure 17. Drawing dimension DPAK (type STD-ST) 0068772/G Note: 1 2 Maximum resin gate protrusion: 0.5 mm. Maximum resin protrusion: 0.25 mm. 32/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data Figure 18. Drawing dimension DPAK (type Fujitsu-subcon.) 0068772/G Doc ID 2572 Rev 28 33/42 Package mechanical data LD1117xx Figure 19. Drawing dimension DPAK (type IDS-subcon.) 0068772/G 34/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data Table 18. DPAK mechanical data Type STD-ST Type Fujitsu-subcon. mm. Max. 2.40 1.10 0.23 0.90 5.40 0.60 0.60 6.20 5.10 6.40 4.70 2.28 4.40 9.35 1.00 2.80 0.80 0.60 0.20 0° 8° 0° 1.00 1.03 0.70 0.40 8° 0° 1.13 0.90 4.60 10.10 9.90 1.40 10.30 1.60 2.23 6.60 Min. 2.25 0.96 0 0.76 5.28 0.46 0.46 6.05 5.27 6.55 6.60 4.77 2.28 2.33 4.51 9.40 0.90 2.50 0.89 0.64 0.20 8° 2.65 1.27 1.02 Typ. 2.30 Max. 2.35 1.06 0.10 0.86 5.38 0.56 0.56 6.15 5.47 6.65 6.35 4.70 2.28 4.61 10.42 Min. 2.19 0.89 0.03 0.64 5.21 0.46 0.46 5.97 5.20 6.73 Type IDS-subcon mm. Typ. Max. 2.38 1.14 0.23 0.88 5.46 0.58 0.58 6.22 Dim. Min. A A1 A2 b b4 c c2 D D1 E E1 e e1 H L L1 L2 L4 R V2 2.20 0.90 0.03 0.64 5.20 0.45 0.48 6.00 mm. Typ. Note: The DPAK package coming from the two subcontractors (Fujitsu and IDS) are fully compatible with the ST's package suggested footprint. Doc ID 2572 Rev 28 35/42 Package mechanical data LD1117xx Figure 20. DPAK footprint recommended data Table 19. Footprint data Values mm. A B C D E F G 6.70 6.70 1.8 3.0 1.60 2.30 2.30 inch. 0.264 0.64 0.070 0.118 0.063 0.091 0.091 36/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data Tape & reel SOT223 mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.73 7.32 1.78 3.9 7.9 4.0 8.0 6.83 7.42 12.8 20.2 60 14.4 6.93 7.52 2 4.1 8.1 0.265 0.288 0.070 0.153 0.311 0.157 0.315 0.269 0.292 13.0 Typ. Max. 330 13.2 0.504 0.795 2.362 0.567 0.273 0.296 0.078 0.161 0.319 0.512 Min. Typ. Max. 12.992 0.519 inch. Doc ID 2572 Rev 28 37/42 Package mechanical data LD1117xx Tape & reel SO-8 mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 8.1 5.5 2.1 3.9 7.9 12.8 20.2 60 22.4 8.5 5.9 2.3 4.1 8.1 0.319 0.216 0.082 0.153 0.311 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.335 0.232 0.090 0.161 0.319 Min. Typ. Max. 12.992 0.519 inch. 38/42 Doc ID 2572 Rev 28 LD1117xx Package mechanical data Tape & reel DPAK-PPAK mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.80 10.40 2.55 3.9 7.9 6.90 10.50 2.65 4.0 8.0 12.8 20.2 60 22.4 7.00 10.60 2.75 4.1 8.1 0.268 0.409 0.100 0.153 0.311 0.272 0.413 0.104 0.157 0.315 13.0 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.2.76 0.417 0.105 0.161 0.319 0.512 Min. Typ. Max. 12.992 0.519 inch. Doc ID 2572 Rev 28 39/42 Order codes LD1117xx 9 Table 20. Order codes Order codes Packages SOT-223 LD1117S12TR LD1117S12CTR LD1117S18TR LD1117S18CTR LD1117S25TR LD1117S25CTR LD1117S30TR LD1117S33TR LD1117S33CTR LD1117S50TR LD1117S50CTR LD1117STR LD1117SC-R LD1117DTR (1) LD1117DC-R (1) LD1117DTC (1) LD1117D33TR LD1117D33CTR LD1117DT33TR LD1117DT33CTR LD1117DT50TR LD1117DT50CTR LD1117DTTR LD1117DTC-R LD1117V LD1117VC (1) LD1117V33 LD1117V33C LD1117V50 SO-8 LD1117D12TR (1) DPAK LD1117DT12 (1) DPAK (T & R) LD1117DT12TR LD1117V12C (1) LD1117DT18TR LD1117V18 (1) TO-220 Output voltages 1.2 V 1.2 V 1.8 V 1.8 V 2.5 V 2.5 V 3V 3.3 V 3.3 V 5V 5V ADJ from 1.25 to 15V ADJ from 1.25 to 15V LD1117D12CTR (1) LD1117DT12C (1) LD1117D18TR (1) (1) LD1117D18CTR LD1117D25TR LD1117DT18CTR LD1117V18C LD1117DT25TR LD1117DT25CTR (1) LD1117D25CTR (1) 1. Available on request. 40/42 Doc ID 2572 Rev 28 LD1117xx Revision history 10 Table 21. Date Revision history Document revision history Revision 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Changes Add new part number #12C; typing error: note on table 2. Add Vref reference voltage on table 12. The DPAK mechanical data updated. The TO220FM package removed. The Top on table 2 updated. DPAK mechanical data updated and added footprint data. Order codes updated. Added Table 1. Modified: Table 20 on page 40. Added note 1. on page 7. Modified: VIN max value Table 5 on page 10 and Figure 10 on page 24. Modified: Table 20 on page 40. Modified Table 11 on page 16. Added: Table 17 on page 26, Figure 13 on page 27, Figure 14 on page 28, Figure 15 and Figure 16 on page 29. 22-Sep-2004 25-Oct-2004 18-Jul-2005 25-Nov-2005 14-Dec-2005 06-Dec-2006 05-Apr-2007 30-Nov-2007 16-Apr-2008 08-Jul-2008 30-Mar-2009 29-Jul-2009 03-Feb-2010 22-Mar-2010 Doc ID 2572 Rev 28 41/42 LD1117xx Please Read Carefully: Information in this document is provided solely in connection with ST products. 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The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 42/42 Doc ID 2572 Rev 28