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.
Contents LD1117xx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Electrical characteristics . . . . . .
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. . . .
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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LD1117xx Diagram 1 Diagram Figure 1.
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.
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.
Schematic application LD1117xx 4 Schematic application Figure 3. Application circuit (for 1.2 V) Figure 4.
LD1117xx 5 Electrical characteristics 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 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 ΔVO Line regulation Vin - VO = 1.5 to 13.
Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 3.3 to 8 V, IO = 0 mA 1 6 mV ΔVO Load regulation Vin = 3.
LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 3.9 to 10 V, IO = 0 mA 1 6 mV ΔVO Load regulation Vin = 3.
Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 4.75 to 15 V, IO = 0 mA 1 6 mV ΔVO Load regulation Vin = 4.
LD1117xx Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 6.5 to 15 V, IO = 0 mA 1 10 mV ΔVO Load regulation Vin = 6.
Electrical characteristics LD1117xx Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin - VO = 1.5 to 13.
LD1117xx Electrical characteristics 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 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 ΔVO Line regulation Vin - VO = 1.5 to 13.
Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 3.3 to 8 V, IO = 0 mA 1 30 mV ΔVO Load regulation Vin = 3.
LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 3.9 to 10 V, IO = 0 mA 1 30 mV ΔVO Load regulation Vin = 3.
Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 4.75 to 15 V, IO = 0 mA 1 30 mV ΔVO Load regulation Vin = 4.
LD1117xx Electrical characteristics Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin = 6.5 to 15 V, IO = 0 mA 1 50 mV ΔVO Load regulation Vin = 6.
Electrical characteristics LD1117xx Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, 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 ΔVO Line regulation Vin - VO = 1.5 to 13.
LD1117xx Typical application 6 Typical application Figure 5. Negative supply Figure 6. Active terminator for SCSI-2 bus Figure 7.
Typical application LD1117xx Figure 8. Voltage regulator with reference Figure 9.
LD1117xx Typical application Figure 10.
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 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.
LD1117xx 8 Package mechanical data 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 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.
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.
LD1117xx Package mechanical data Figure 14.
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.
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.
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.
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.
Package mechanical data LD1117xx Figure 18. Drawing dimension DPAK (type Fujitsu-subcon.
LD1117xx Package mechanical data Figure 19. Drawing dimension DPAK (type IDS-subcon.
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.
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.
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.
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.
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.
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.
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.
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