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, 3.3 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.) TO-220 SOT-223 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, 3.3 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. 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 F minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within 1 % at Table 1. DPAK SO-8 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. Device summary Part numbers LD1117XX12 LD1117XX25 LD1117XX50 LD1117XX12C LD1117XX25C LD1117XX50C LD1117XX18 LD1117XX33 LD1117XX LD1117XX18C LD1117XX33C LD1117XXC February 2012 Doc ID 2572 Rev 31 1/41 www.st.com 41 Contents LD1117xx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7 LD1117 adjustable: application note . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 9 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 2/41 Doc ID 2572 Rev 31 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. 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#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of LD1117#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of LD1117 (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of LD1117#12C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of LD1117#18C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics of LD1117#25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics of LD1117#33C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics of LD1117#50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics of LD1117C (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 TO-220 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 DPAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Doc ID 2572 Rev 31 3/41 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. 4/41 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Active terminator for SCSI-2 bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Voltage regulator with reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Battery backed-up regulated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Post-regulated dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Adjustable output voltage application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 24 Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 27 Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 28 Drawing dimension DPAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Drawing dimension DPAK (type Fujitsu-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Drawing dimension DPAK (type IDS-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 DPAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Doc ID 2572 Rev 31 LD1117xx Diagram 1 Diagram Figure 1. Block diagram Doc ID 2572 Rev 31 5/41 Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) LD1117xx SO-8 SOT-223 TO-220 DPAK Note: 6/41 The TAB is connected to the VOUT. Doc ID 2572 Rev 31 LD1117xx Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Value Unit DC input voltage 15 V PTOT Power dissipation 12 W TSTG Storage temperature range -40 to +150 C -40 to +125 C TOP Operating junction temperature range 0 to +125 C VIN (1) Parameter for C version for standard version 1. Absolute maximum rating of VIN = 18 V, when IOUT is lower than 20 mA. Table 3. Symbol Thermal data Parameter RthJC Thermal resistance junction-case RthJA Thermal resistance junction-ambient SOT-223 SO-8 DPAK TO-220 Unit 15 20 8 5 C/W 50 C/W Doc ID 2572 Rev 31 7/41 Schematic application LD1117xx 4 Schematic application Figure 3. Application circuit (for 1.2 V) Figure 4. Application circuit (for other fixed output voltages) 8/41 Doc ID 2572 Rev 31 LD1117xx 5 Electrical characteristics Electrical characteristics Refer to the test circuits, TJ = 0 to 125 C, CO = 10 F, R = 120 between GND and OUT pins, unless otherwise specified. Table 4. Symbol Electrical characteristics of LD1117#12 Parameter Test condition Min. Typ. Max. Unit VO Output voltage Vin = 3.2 V, IO = 10 mA, TJ = 25 C 1.188 1.20 1.212 V VO Output voltage IO = 10 to 800 mA Vin - VO = 1.4 to 10 V 1.140 1.20 1.260 V VO Line regulation Vin - VO = 1.5 to 13.75 V, IO = 10 mA 0.035 0.2 % VO Load regulation Vin - VO = 3 V, IO = 10 to 800 mA 0.1 0.4 % VO Temperature stability VO Long term stability Vin Operating input voltage Iadj Adjustment pin current Vin 15 V Adjustment pin current change 1000 hrs, TJ = 125 C 0.5 % 0.3 % 15 V 60 120 A Vin - VO = 1.4 to 10 V IO = 10 to 800 mA 1 5 A Minimum load current Vin = 15 V 2 5 mA IO Output current Vin - VO = 5 V, TJ = 25 C 950 1300 mA eN Output noise (%VO) B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin - VO = 3 V, Vripple = 1 VPP Iadj IO(min) SVR Vd Dropout voltage Thermal regulation 800 60 0.003 % 75 dB IO = 100 mA 1 1.1 IO = 500 mA 1.05 1.15 IO = 800 mA 1.10 1.2 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W 9/41 Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 C, CO = 10 F, unless otherwise specified. Table 5. Symbol Electrical characteristics of LD1117#18 Parameter Test condition Min. Typ. Max. Unit 1.8 1.82 V 1.84 V VO Output voltage Vin = 3.8 V, IO = 10 mA, TJ = 25 C 1.78 VO Output voltage IO = 0 to 800 mA, Vin = 3.3 to 8 V 1.76 VO Line regulation Vin = 3.3 to 8 V, IO = 0 mA 1 6 mV VO Load regulation Vin = 3.3 V, IO = 0 to 800 mA 1 10 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 8 V IO Output current Vin = 6.8 V, TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 5.5 V, Vripple = 1 VPP SVR Vd Dropout voltage Thermal regulation 10/41 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA 1 1.1 IO = 500 mA 1.05 1.15 IO = 800 mA 1.10 1.2 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 C, CO = 10 F, unless otherwise specified. Table 6. Symbol Electrical characteristics of LD1117#25 Parameter Test condition Min. Typ. Max. Unit 2.5 2.525 V 2.55 V VO Output voltage Vin = 4.5 V, IO = 10 mA, TJ = 25 C 2.475 VO Output voltage IO = 0 to 800 mA, Vin = 3.9 to 10 V 2.45 VO Line regulation Vin = 3.9 to 10 V, IO = 0 mA 1 6 mV VO Load regulation Vin = 3.9 V, IO = 0 to 800 mA 1 10 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 10 V IO Output current Vin = 7.5 V TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 5.5 V, Vripple = 1 VPP SVR Vd Dropout voltage Thermal regulation 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA 1 1.1 IO = 500 mA 1.05 1.15 IO = 800 mA 1.10 1.2 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W 11/41 Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 C, CO = 10 F, unless otherwise specified. Table 7. Symbol Electrical characteristics of LD1117#33 Parameter Test condition Min. Typ. Max. Unit 3.3 3.333 V 3.365 V VO Output voltage Vin = 5.3 V, IO = 10 mA, TJ = 25 C 3.267 VO Output voltage IO = 0 to 800 mA, Vin = 4.75 to 10 V 3.235 VO Line regulation Vin = 4.75 to 15 V, IO = 0 mA 1 6 mV VO Load regulation Vin = 4.75 V, IO = 0 to 800 mA 1 10 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 15 V IO Output current Vin = 8.3 V, TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 6.3 V, Vripple = 1 VPP SVR Vd Dropout voltage Thermal regulation 12/41 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA 1 1.1 IO = 500 mA 1.05 1.15 IO = 800 mA 1.10 1.2 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 C, CO = 10 F, unless otherwise specified. Table 8. Symbol Electrical characteristics of LD1117#50 Parameter Test condition Min. Typ. Max. Unit 5 5.05 V 5.1 V VO Output voltage Vin = 7 V, IO = 10 mA, TJ = 25 C 4.95 VO Output voltage IO = 0 to 800 mA, Vin = 6.5 to 15 V 4.9 VO Line regulation Vin = 6.5 to 15 V, IO = 0 mA 1 10 mV VO Load regulation Vin = 6.5 V, IO = 0 to 800 mA 1 15 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 15 V IO Output current Vin = 10 V, TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 8 V, Vripple = 1 VPP SVR Vd Dropout voltage Thermal regulation 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA 1 1.1 IO = 500 mA 1.05 1.15 IO = 800 mA 1.10 1.2 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W 13/41 Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 C, CO = 10 F, unless otherwise specified. Table 9. Symbol Electrical characteristics of LD1117 (adjustable) Parameter Test condition Min. Typ. Max. Unit 1.238 1.25 1.262 V 1.275 V 0.035 0.2 % 0.1 0.4 % Vref Reference voltage Vin - VO = 2 V, IO = 10 mA, TJ = 25 C Vref Reference voltage IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V 1.225 VO Line regulation Vin - VO = 1.5 to 13.75 V, IO = 10 mA VO Load regulation Vin - VO = 3 V, IO = 10 to 800 mA VO Temperature stability VO Long term stability Vin Operating input voltage Iadj Adjustment pin current 1000 hrs, TJ = 125 C 0.5 % 0.3 % 15 V 60 120 A Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA 1 5 A Minimum load current Vin = 15 V 2 5 mA IO Output current Vin - VO = 5 V, TJ = 25 C 950 1300 mA eN Output noise (%VO) B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin - VO = 3 V, Vripple = 1 VPP Iadj IO(min) SVR Vd Dropout voltage Thermal regulation 14/41 Vin 15 V 800 60 0.003 % 75 dB IO = 100 mA 1 1.1 IO = 500 mA 1.05 1.15 IO = 800 mA 1.10 1.2 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 C, CO = 10 F, R = 120 between GND and OUT pins, unless otherwise specified. Table 10. Symbol Electrical characteristics of LD1117#12C Parameter Test condition Min. Typ. Max. Unit VO Output voltage Vin - VO = 2 V, IO = 10 mA, TJ = 25 C 1.176 1.20 1.224 V VO Output voltage IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V 1.120 1.20 1.280 V VO Line regulation Vin - VO = 1.5 to 13.75 V, IO = 10 mA 1 % VO Load regulation Vin - VO = 3 V, IO = 10 to 800 mA 1 % VO Temperature stability VO Long term stability Vin Operating input voltage Iadj Adjustment pin current Vin 15 V Iadj Adjustment pin current change IO(min) 1000 hrs, TJ = 125 C 0.5 % 0.3 % 15 V 60 120 A Vin - VO = 1.4 to 10 V IO = 10 to 800 mA 1 5 A Minimum load current Vin = 15 V 2 5 mA IO Output current Vin - VO = 5 V, TJ = 25 C 950 1300 mA eN Output noise (%VO) B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin - VO = 3 V, Vripple = 1 VPP SVR Vd Dropout voltage Thermal regulation 800 60 0.003 % 75 dB IO = 100 mA, TJ = 0 to 125 C 1 1.1 IO = 500 mA, TJ = 0 to 125 C 1.05 1.2 IO = 800 mA, TJ = 0 to 125 C 1.10 1.3 Ta = 25 C, 30 ms Pulse 0.01 0.1 Doc ID 2572 Rev 31 V %/W 15/41 Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 C, CO = 10 F, unless otherwise specified. Table 11. Symbol Electrical characteristics of LD1117#18C Parameter Test condition Min. Typ. Max. Unit 1.8 1.84 V 1.87 V VO Output voltage Vin = 3.8 V, IO = 10 mA, TJ = 25 C 1.76 VO Output voltage IO = 0 to 800 mA, Vin = 3.9 to 10 V 1.73 VO Line regulation Vin = 3.3 to 8 V, IO = 0 mA 1 30 mV VO Load regulation Vin = 3.3 V, IO = 0 to 800 mA 1 30 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 8 V IO Output current Vin = 6.8 V TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 5.5 V, Vripple = 1 VPP SVR Vd Vd Dropout voltage Dropout voltage Thermal regulation 16/41 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA, TJ = 0 to 125 C 1 1.1 IO = 500 mA, TJ = 0 to 125 C 1.05 1.15 IO = 800 mA, TJ = 0 to 125 C 1.10 1.2 IO = 100 mA 1.1 IO = 500 mA 1.2 IO = 800 mA 1.3 Ta = 25 C, 30 ms Pulse Doc ID 2572 Rev 31 0.01 0.1 V V %/W LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 C, CO = 10 F, unless otherwise specified. Table 12. Symbol Electrical characteristics of LD1117#25C Parameter Test condition Min. Typ. Max. Unit 2.5 2.55 V 2.6 V VO Output voltage Vin = 4.5 V, IO = 10 mA, TJ = 25 C 2.45 VO Output voltage IO = 0 to 800 mA, Vin = 3.9 to 10 V 2.4 VO Line regulation Vin = 3.9 to 10 V, IO = 0 mA 1 30 mV VO Load regulation Vin = 3.9 V, IO = 0 to 800 mA 1 30 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 10 V IO Output current Vin = 7.5 V TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 5.5 V, Vripple = 1 VPP SVR Vd Vd Dropout voltage Dropout voltage Thermal regulation 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA, TJ = 0 to 125 C 1 1.1 IO = 500 mA, TJ = 0 to 125 C 1.05 1.15 IO = 800 mA, TJ = 0 to 125 C 1.10 1.2 IO = 100 mA 1.1 IO = 500 mA 1.2 IO = 800 mA 1.3 Ta = 25 C, 30 ms Pulse Doc ID 2572 Rev 31 0.01 0.1 V V %/W 17/41 Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 C, CO = 10 F, unless otherwise specified. Table 13. Symbol Electrical characteristics of LD1117#33C Parameter Test condition Min. Typ. Max. Unit 3.3 3.36 V 3.44 V VO Output voltage Vin = 5.3 V, IO = 10 mA, TJ = 25 C 3.24 VO Output voltage IO = 0 to 800 mA, Vin = 4.75 to 10 V 3.16 VO Line regulation Vin = 4.75 to 15 V, IO = 0 mA 1 30 mV VO Load regulation Vin = 4.75 V, IO = 0 to 800 mA 1 30 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 15 V IO Output current Vin = 8.3 V, TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 6.3 V, Vripple = 1 VPP SVR Vd Vd Dropout voltage Dropout voltage Thermal regulation 18/41 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA, TJ = 0 to 125 C 1 1.1 IO = 500 mA, TJ = 0 to 125 C 1.05 1.15 IO = 800 mA, TJ = 0 to 125 C 1.10 1.2 IO = 100 mA 1.1 IO = 500 mA 1.2 IO = 800 mA 1.3 Ta = 25 C, 30 ms Pulse Doc ID 2572 Rev 31 0.01 0.1 V V %/W LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 C, CO = 10 F, unless otherwise specified. Table 14. Symbol Electrical characteristics of LD1117#50C Parameter Test condition Min. Typ. Max. Unit 5 5.1 V 5.2 V VO Output voltage Vin = 7 V, IO = 10 mA, TJ = 25 C 4.9 VO Output voltage IO = 0 to 800 mA, Vin = 6.5 to 15 V 4.8 VO Line regulation Vin = 6.5 to 15 V, IO = 0 mA 1 50 mV VO Load regulation Vin = 6.5 V, IO = 0 to 800 mA 1 50 mV VO Temperature stability VO Long term stability 1000 hrs, TJ = 125 C Vin Operating input voltage IO = 100 mA Id Quiescent current Vin 15 V IO Output current Vin = 10 V, TJ = 25 C eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin = 8 V, Vripple = 1 VPP SVR Vd Vd Dropout voltage Dropout voltage Thermal regulation 800 60 0.5 % 0.3 % 15 V 5 10 mA 950 1300 mA 100 V 75 dB IO = 100 mA, TJ = 0 to 125 C 1 1.1 IO = 500 mA, TJ = 0 to 125 C 1.05 1.15 IO = 800 mA, TJ = 0 to 125 C 1.10 1.2 IO = 100 mA 1.1 IO = 500 mA 1.2 IO = 800 mA 1.3 Ta = 25 C, 30 ms Pulse Doc ID 2572 Rev 31 0.01 0.1 V V %/W 19/41 Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 C, CO = 10 F, unless otherwise specified. Table 15. Symbol Electrical characteristics of LD1117C (adjustable) Parameter Test condition Min. Typ. Max. Unit 1.225 1.25 1.275 V 1.3 V Vref Reference voltage Vin - VO = 2 V, IO = 10 mA, TJ = 25 C Vref Reference voltage IO = 10 to 800 mA, Vin - VO= 1.4 to 10 V VO Line regulation Vin - VO = 1.5 to 13.75 V, IO = 10 mA 1 % VO Load regulation Vin - VO = 3 V, IO = 10 to 800 mA 1 % VO Temperature stability VO Long term stability Vin Operating input voltage Iadj Adjustment pin current 1.2 1000 hrs, TJ = 125 C 0.5 % 0.3 % 15 V 60 120 A Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA 1 10 A Minimum load current Vin = 15 V 2 5 mA IO Output current Vin - VO = 5 V, TJ = 25 C 950 1300 mA eN Output noise (%VO) B = 10 Hz to 10 kHz, TJ = 25 C Supply voltage rejection IO = 40 mA, f = 120 Hz, TJ = 25 C Vin - VO = 3 V, Vripple = 1 VPP Iadj IO(min) SVR Vd Vd Dropout voltage Dropout voltage Thermal regulation 20/41 Vin 15 V 800 60 0.003 % 75 dB IO = 100 mA, TJ = 0 to 125 C 1 1.1 IO = 500 mA, TJ = 0 to 125 C 1.05 1.15 IO = 800 mA, TJ = 0 to 125 C 1.10 1.2 IO = 100 mA 1.1 IO = 500 mA 1.2 IO = 800 mA 1.3 Ta = 25 C, 30 ms Pulse Doc ID 2572 Rev 31 0.01 0.1 V V %/W LD1117xx Typical application 6 Typical application Figure 5. Negative supply Figure 6. Active terminator for SCSI-2 bus Figure 7. Circuit for increasing output voltage Doc ID 2572 Rev 31 21/41 Typical application LD1117xx Figure 8. Voltage regulator with reference Figure 9. Battery backed-up regulated supply 22/41 Doc ID 2572 Rev 31 LD1117xx Typical application Figure 10. Post-regulated dual supply Doc ID 2572 Rev 31 23/41 LD1117 adjustable: application note 7 LD1117xx 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 A typ. (120 A max.) and IADJ is 1 A typ. (5 A max.). R1 is normally fixed to 120 . 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 k, 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 F 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 24/41 Doc ID 2572 Rev 31 LD1117xx 8 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. Table 16. TO-220 mechanical data Type STD - ST Dual Gauge Type STD - ST Single Gauge mm. mm. Dim. Min. Typ. Max. Min. Typ. Max. A 4.40 4.60 4.40 4.60 b 0.61 0.88 0.61 0.88 b1 1.14 1.70 1.14 1.70 c 0.48 0.70 0.48 0.70 D 15.25 15.75 15.25 15.75 D1 1.27 E 10.00 10.40 10.00 10.40 e 2.40 2.70 2.40 2.70 e1 4.95 5.15 4.95 5.15 F 1.23 1.32 0.51 0.60 H1 6.20 6.60 6.20 6.60 J1 2.40 2.72 2.40 2.72 L 13.00 14.00 13.00 14.00 L1 3.50 3.93 3.50 3.93 L20 16.40 16.40 L30 28.90 28.90 P 3.75 3.85 3.75 3.85 Q 2.65 2.95 2.65 2.95 In spite of some difference in tolerances, the packages are compatible. Doc ID 2572 Rev 31 25/41 Package mechanical data LD1117xx Figure 13. Drawing dimension TO-220 (type STD-ST Dual Gauge) 0015988_S Note: 26/41 1 Maximum resin gate protrusion: 0.5 mm. 2 Resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical. Doc ID 2572 Rev 31 LD1117xx Package mechanical data Figure 14. Drawing dimension TO-220 (type STD-ST Single Gauge) 8174627_B Doc ID 2572 Rev 31 27/41 Package mechanical data LD1117xx Figure 15. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 16. Drawing dimension tube for TO-220 Single Gauge (mm.) 28/41 Doc ID 2572 Rev 31 LD1117xx Package mechanical data SOT-223 mechanical data mm. mils. Dim. Min. Typ. A Max. Min. Typ. 1.8 A1 0.02 B 0.6 B1 Max. 70.9 0.1 0.8 3.9 0.7 0.85 23.6 27.6 33.5 2.9 3 3.15 114.2 118.1 124.0 c 0.24 0.26 0.35 9.4 10.2 13.8 D 6.3 6.5 6.7 248.0 255.9 263.8 e 2.3 90.6 e1 4.6 181.1 E 3.3 3.5 3.7 129.9 137.8 145.7 H 6.7 7 7.3 263.8 275.7 287.5 V 10 10 0046067/H Doc ID 2572 Rev 31 29/41 Package mechanical data LD1117xx SO-8 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8 (max.) 0.1 0.04 0016023/C 30/41 Doc ID 2572 Rev 31 LD1117xx Package mechanical data Figure 17. Drawing dimension DPAK (type STD-ST) 0068772/G Note: 1 Maximum resin gate protrusion: 0.5 mm. 2 Maximum resin protrusion: 0.25 mm. Doc ID 2572 Rev 31 31/41 Package mechanical data LD1117xx Figure 18. Drawing dimension DPAK (type Fujitsu-subcon.) 0068772/G 32/41 Doc ID 2572 Rev 31 LD1117xx Package mechanical data Figure 19. Drawing dimension DPAK (type IDS-subcon.) 0068772/G Doc ID 2572 Rev 31 33/41 Package mechanical data Table 17. LD1117xx DPAK mechanical data Dim. Min. Type STD-ST Type Fujitsu-subcon. Type IDS-subcon mm. mm. mm. Typ. Max. Min. Typ. Max. Min. Typ. Max. 2.30 2.35 2.19 2.38 A 2.20 2.40 2.25 A1 0.90 1.10 0.96 1.06 0.89 1.14 A2 0.03 0.23 0 0.10 0.03 0.23 b 0.64 0.90 0.76 0.86 0.64 0.88 b4 5.20 5.40 5.28 5.38 5.21 5.46 c 0.45 0.60 0.46 0.56 0.46 0.58 c2 0.48 0.60 0.46 0.56 0.46 0.58 D 6.00 6.20 6.05 6.15 5.97 6.22 5.27 5.47 D1 E 5.10 6.40 6.60 E1 4.70 e 2.28 2.23 4.40 4.60 H 9.35 10.10 L 1.00 2.80 L2 0.80 L4 0.60 R V2 Note: 34/41 6.65 6.35 1.00 2.28 2.33 2.28 4.51 4.61 10.42 10.30 9.40 1.40 1.60 0.90 2.50 2.65 1.03 1.13 0.89 1.27 0.70 0.90 0.64 1.02 0.40 8 6.73 4.70 9.90 0.20 0 6.60 4.77 e1 L1 6.55 5.20 0 0.20 8 0 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 31 8 LD1117xx Package mechanical data Figure 20. DPAK footprint recommended data Table 18. Footprint data Values mm. inch. A 6.70 0.264 B 6.70 0.64 C 1.8 0.070 D 3.0 0.118 E 1.60 0.063 F 2.30 0.091 G 2.30 0.091 Doc ID 2572 Rev 31 35/41 Package mechanical data LD1117xx Tape & reel SOT223 mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 330 13.0 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 36/41 Max. 0.504 0.512 14.4 0.519 0.567 Ao 6.73 6.83 6.93 0.265 0.269 0.273 Bo 7.32 7.42 7.52 0.288 0.292 0.296 Ko 1.78 2 0.070 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 Doc ID 2572 Rev 31 0.078 LD1117xx Package mechanical data Tape & reel SO-8 mechanical data mm. inch. Dim. Min. A Typ. Max. Min. 330 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ. 0.504 22.4 0.519 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 0.232 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 Doc ID 2572 Rev 31 37/41 Package mechanical data LD1117xx Tape & reel DPAK-PPAK mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 330 13.0 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 38/41 Max. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 Doc ID 2572 Rev 31 LD1117xx Order codes 9 Order codes Table 19. Order codes Packages SOT-223 SO-8 DPAK DPAK (tape and reel) LD1117S12TR LD1117D12TR (1) LD1117DT12 (1) LD1117DT12TR LD1117S12CTR LD1117S18TR LD1117S18CTR LD1117S25TR LD1117D12CTR (1) LD1117DT12C (1) LD1117DT12CTR LD1117D18TR (1) LD1117D18CTR LD1117D25TR LD1117DT18TR (1) LD1117DT18CTR (1) Output voltages TO-220 1.2 V LD1117V12C (1) 1.2 V LD1117V18 1.8 V LD1117V18C (1) LD1117DT25TR 2.5 V 2.5 V LD1117S25CTR LD1117D25CTR (1) LD1117DT25CTR LD1117S33TR LD1117D33TR LD1117DT33TR LD1117V33 LD1117V33-DG LD1117S33CTR LD1117D33CTR LD1117S50TR 1.8 V LD1117DT33CTR LD1117V33C LD1117DT50TR LD1117V50 LD1117V50-DG 3.3 V (2) 3.3 V 3.3 V 5V (2) 5V LD1117S50CTR LD1117DT50CTR LD1117V50C 5V LD1117STR LD1117DTTR LD1117V ADJ from 1.25 to 15V LD1117V-DG (2) ADJ from 1.25 to 15V LD1117VC (1) ADJ from 1.25 to 15V LD1117SC-R LD1117DC-R (1) LD1117DTC (1) LD1117DTC-R 1. Available on request. 2. TO-220 Dual Gauge frame. Doc ID 2572 Rev 31 39/41 Revision history LD1117xx 10 Revision history Table 20. Document revision history Date Revision 22-Sep-2004 15 Add new part number #12C; typing error: note on table 2. 25-Oct-2004 16 Add Vref reference voltage on table 12. 18-Jul-2005 17 The DPAK mechanical data updated. 25-Nov-2005 18 The TO220FM package removed. 14-Dec-2005 19 The Top on table 2 updated. 06-Dec-2006 20 DPAK mechanical data updated and added footprint data. 05-Apr-2007 21 Order codes updated. 30-Nov-2007 22 Added Table 1. 16-Apr-2008 23 Modified: Table 19 on page 39. 08-Jul-2008 24 Added note 1. on page 7. 30-Mar-2009 25 Modified: VIN max value Table 5 on page 10 and Figure 10 on page 23. 29-Jul-2009 26 Modified: Table 19 on page 39. 03-Feb-2010 27 Modified Table 10 on page 15. 22-Mar-2010 28 Added: Table 16 on page 25, Figure 13 on page 26, Figure 14 on page 27, Figure 15 and Figure 16 on page 28. 15-Nov-2010 29 Modified: RthJC value for TO-220 Table 3 on page 7. 30-Nov-2011 30 Added: order code LD1117V33-DG Table 19 on page 39. 13-Feb-2012 31 Added: order codes LD1117V50-DG and LD1117V-DG Table 19 on page 39. 40/41 Changes Doc ID 2572 Rev 31 LD1117xx Please Read Carefully: Information in this document is provided solely in connection with ST products. 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