LD1117AS18TR

LD1117A series Low drop fixed and adjustable positive voltage regulators Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Low dropout voltage (1.15V typ. @ IOUT = 1A, 25°C) Very low quiescent current (5 mA typ. @ 25°C) Output current up to 1A Fixed output voltage of: 1.2V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V Adjustable version availability (Vrel = 1.25V) Internal current and thermal limit Only 10 µF for stability Available in ± 2% (at 25°C) and 4% in full temperature range High supply voltage rejection: – 80dB typ. at 25°C) Temperature range: 0°C to 125°C Concerning fixed versions, are offered the following Output Voltages: 1.2V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V. The 2.85V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT-223, DPAK, D2PAK/A and TO-220. Surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. Only a very common 10µF minimum capacitor is needed for stability. Only chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 2% at 25°C. DPAK D2PAK/A SOT-223 TO-220 Description The LD1117A is a LOW DROP Voltage Regulator able to provide up to 1A of Output Current, available even in adjustable version (Vref=1.25V). Block diagram January 2007 Rev. 17 1/27 www.st.com 27 LD1117A series Contents 1 2 3 4 5 6 7 8 9 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 LD1117A Adjustable: Application note . . . . . . . . . . . . . . . . . . . . . . . . . 13 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2/27 LD1117A series Pin configuration 1 Figure 1. Pin configuration Pin connections (top view) SOT-223 DPAK TO-220 D2PAK/A Note: The TAB is connected to the VOUT. 3/27 Maximum ratings LD1117A series 2 Table 1. Symbol VIN PTOT TSTG TOP Maximum ratings Absolute maximum ratings Parameter DC Input Voltage Power Dissipation Storage Temperature Range Operating Junction Temperature Range Value 15 12 -40 to +150 0 to +125 Unit V W °C °C Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Over the above suggested Max Power Dissipation a Short Circuit could definitively damage the device. Thermal Data Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient SOT-223 15 D2PAK/A 3 DPAK 8 TO-220 3 50 Unit °C/W °C/W Table 2. Symbol RthJC RthJA 4/27 LD1117A series Schematic application 3 Figure 2. Schematic application Application circuit (for other fixed output voltages) 5/27 Electrical characteristics LD1117A series 4 Table 3. Electrical characteristics Electrical characteristics of LD1117A#12 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF, R = 120 Ω between OUTGND, unless otherwise specified). 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 = 100mA VI ≤8V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA VD Dropout voltage IO = 500mA IO = 1 A 60 1000 5 1200 100 80 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W V Test conditions VI = 5.3V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 2.75 to 10V VI = 2.75 to 8V, IO = 0mA VI = 2.75V, IO = 0 to 1A Min. 1.176 1.152 Typ. 1.2 1.2 1 1 0.5 0.3 10 10 Max. 1.224 1.248 6 10 Unit V V mV mV % % V mA mA µV dB Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR ∆VO(pwr) Thermal regulation Ta = 25°C, 30ms Pulse 6/27 LD1117A series Table 4. Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR Electrical characteristics Electrical characteristics of LD1117A#18 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF unless otherwise specified). 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 = 100mA VI ≤8V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA 60 1000 100 80 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W V 5 Test conditions VI = 3.8V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 3.3 to 8V VI = 3.3 to 8V, IO = 0mA VI = 3.3V, IO = 0 to 1A Min. 1.764 1.728 1 1 0.5 0.3 10 10 Typ. 1.8 Max. 1.836 1.872 6 10 Unit V V mV mV % % V mA mA µV dB VD Dropout voltage IO = 500mA IO = 1 A ∆VO(pwr) Thermal regulation Ta = 25°C, 30ms Pulse Table 5. Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR Electrical characteristics of LD1117A#25 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF unless otherwise specified). 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 = 100mA VI ≤10V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA 60 1000 5 1200 100 80 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W 7/27 V Test conditions VI = 4.5V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 3.9 to 8V VI = 3.9 to 8V, IO = 0mA VI = 3.9V, IO = 0 to 1A Min. 2.45 2.4 1 1 0.5 0.3 10 10 Typ. 2.5 Max. 2.55 2.6 6 10 Unit V V mV mV % % V mA mA µV dB VD Dropout voltage IO = 500mA IO = 1 A ∆VO(pwr) Thermal regulation Ta = 25°C, 30ms Pulse Electrical characteristics Table 6. Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR LD1117A series Electrical characteristics of LD1117A#28 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF unless otherwise specified). 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 = 100mA VI ≤10V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA 60 1000 4.5 1200 100 75 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W V Test conditions VI = 4.85V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 4.25 to 10V VI = 4.25 to 8V, IO = 0mA VI = 4.25V, IO = 0 to 1A Min. 2.793 2.736 1 1 0.5 0.3 10 10 Typ. 2.85 Max. 2.907 2.964 6 10 Unit V V mV mV % % V mA mA µV dB VD Dropout voltage IO = 500mA IO = 1 A ∆VO(pwr) Thermal regulation Ta = 25°C, 30ms Pulse Table 7. Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR Electrical characteristics of LD1117A#33 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF unless otherwise specified). 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 = 100mA VI ≤10V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA 60 1000 5 1200 100 75 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W V Test conditions VI = 5.3V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 4.75 to 10V VI = 4.75 to 8V, IO = 0mA VI = 4.75V, IO = 0 to 1A Min. 3.234 3.168 1 1 0.5 0.3 10 10 Typ. 3.3 Max. 3.366 3.432 6 10 Unit V V mV mV % % V mA mA µV dB VD Dropout voltage IO = 500mA IO = 1 A ∆VO(pwr) Thermal regulation 8/27 Ta = 25°C, 30ms Pulse LD1117A series Table 8. Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR Electrical characteristics Electrical characteristics of LD1117#50 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF unless otherwise specified). 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 = 100mA VI ≤10V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA 60 1000 5 1200 100 80 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W V Test conditions VI = 7V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 6.4 to 10V VI = 6.4 to 8V, IO = 0mA VI = 6.4V, IO = 0 to 1A Min. 4.9 4.8 1 1 0.5 0.3 10 10 Typ. 5 Max. 5.1 5.2 6 10 Unit V V mV mV % % V mA mA µV dB VD Dropout voltage IO = 500mA IO = 1 A ∆VO(pwr) Thermal regulation Ta = 25°C, 30ms Pulse Table 9. Symbol VO VO ∆VO ∆VO ∆VO ∆VO VI Id IO eN SVR Electrical characteristics of LD1117A (Adjustable) (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, CI = 10 µF unless otherwise specified). 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 = 100mA VI ≤8V, IO = 0mA VI - VO = 5V, TJ = 25°C B =10Hz to 10KHz, TJ = 25°C IO = 40mA, f = 120Hz VI - VO = 3V, Vripple = 1VPP IO = 100mA 60 1000 5 1200 100 80 1 1.05 1.15 0.08 1.10 1.15 1.30 0.2 %/W 9/27 V Test conditions VI = 5.3V, IO = 10mA, TJ = 25°C IO = 0 to 1A, VI = 2.75 to 10V VI = 2.75 to 8V, IO = 0mA VI = 2.75V, IO = 0 to 1A Min. 1.225 1.2 1 1 0.5 0.3 10 10 Typ. 1.25 Max. 1.275 1.3 6 10 Unit V V mV mV % % V mA mA µV dB VD Dropout voltage IO = 500mA IO = 1A ∆VO(pwr) Thermal regulation Ta = 25°C, 30ms Pulse Typical application LD1117A series 5 Figure 3. Typical application Negative supply Figure 4. Active terminator for SCSI-2 BUS Figure 5. Circuit for increasing output voltage 10/27 LD1117A series Typical application Figure 6. Voltage Regulator With Reference Figure 7. Battery backed-up regulated supply 11/27 Typical application LD1117A series Figure 8. Post-regulated dual supply 12/27 LD1117A series LD1117A Adjustable: Application note 6 LD1117A Adjustable: Application note The LD1117 Adjustable has a thermal stabilized 1.25±0.012V reference voltage between the OUT and ADJ pins. IADJ is 60µA typ. (120µA max.) and ∆IADJ is 1µA typ. (5µA max.). R1 is normally fixed to 120Ω From Figure 6. 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 10µF electrolytic capacitor placed in parallel to the R2 resistor (see Figure 9.). Figure 9. Adjustable output voltage application Figure 10. Adjustable output voltage application with improved ripple rejection 13/27 Package mechanical data LD1117A series 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: www.st.com. 14/27 LD1117A series Package mechanical data 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 15/27 Package mechanical data LD1117A series TO-220 MECHANICAL DATA DIM. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. MIN. 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.620 0.260 0.154 0.151 TYP MAX. 4.60 1.32 2.72 MIN. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch TYP. MAX. 0.181 0.051 0.107 P011C 16/27 LD1117A series Package mechanical data Figure 11. DRAWING DIMENSION D2PAK/A (TYPE STD-ST) 7106164/E 17/27 Package mechanical data LD1117A series Figure 12. DRAWING DIMENSION D2PAK/A (TYPE WOOSEOK-SUBCON.) 7106164/E 18/27 LD1117A series Package mechanical data Table 10. D2PAK/A MECHANICAL DATA TYPE STD-ST TYPE WOOSEOK-SUBCON. mm. MAX. 4.60 0.23 0.93 1.30 1.70 0.60 1.36 9.35 1.17 0.45 1.25 9 7.50 10.40 9.80 7.50 2.54 4.88 15 2.49 2.29 1.27 0.4 0° 8° 0° 5.28 15.85 2.69 2.79 1.40 15 2.20 1.79 1 0.30 3° 2.54 5.08 15.30 15.60 2.60 2.79 1.40 10.20 0.50 1.30 9.20 1.37 0.60 1.40 9.40 MIN. 4.30 0 0.70 TYP. MAX. 4.70 0.20 0.90 DIM. MIN. A A1 b b1 b2 c c2 D D1 E E1 e e1 H J1 L L1 R V2 4.40 0.03 0.70 0.80 1.14 0.45 1.23 8.95 7.50 10 8.50 mm. TYP. Note: The D2PAK/A package coming from the subcontractor Wooseok is fully compatible with the ST's package suggested footprint. 19/27 Package mechanical data LD1117A series Figure 13. D2PAK/A FOOTPRINT RECOMMENDED DATA Table 11. FOOTPRINT DATA VALUES mm. A B C D E F G 12.20 9.75 16.90 3.50 1.60 2.54 5.08 inch. 0.480 0.384 0.665 0.138 0.063 0.100 0.200 20/27 LD1117A series Package mechanical data DPAK MECHANICAL DATA mm. DIM. MIN. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 5.1 6.4 4.7 2.28 4.4 9.35 1 2.8 0.8 0.6 0.2 0° 8° 0° 1 0.023 0.008 8° 4.6 10.1 0.173 0.368 0.039 0.110 0.031 0.039 6.6 0.252 0.185 0.090 0.181 0.397 TYP MAX. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 MIN. 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 0.200 0.260 TYP. MAX. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 inch 0068772-F 21/27 Package mechanical data LD1117A series 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 22/27 LD1117A series 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 23/27 Package mechanical data LD1117A series Tape & Reel D2PAK-P 2PAK-D 2PAK/A-P 2PAK/A MECHANICAL DATA mm. DIM. MIN. A C D N T Ao Bo Ko Po P 10.50 15.70 4.80 3.9 11.9 10.6 15.80 4.90 4.0 12.0 12.8 20.2 60 14.4 10.70 15.90 5.00 4.1 12.1 0.413 0.618 0.189 0.153 0.468 0.417 0.622 0.193 0.157 0.472 13.0 TYP MAX. 180 13.2 0.504 0.795 2.362 0.567 0.421 0.626 0.197 0.161 0.476 0.512 MIN. TYP. MAX. 7.086 0.519 inch 24/27 LD1117A series Order code 8 Table 12. Order code Order code Part numbers SOT-223 LD1117AS12TR LD1117AS18TR LD1117AS25TR LD1117AS28TR(1) LD1117AS33TR LD1117AS50TR(1) LD1117ASTR DPAK LD1117ADT12TR(1) LD1117ADT18TR LD1117ADT25TR LD1117ADT28TR(1) LD1117ADT33TR LD1117ADT50TR(1) LD1117ADT-TR LD1117AD2MTR D2PAK/A TO-220 LD1117AV12(1) LD1117AV18 LD1117AV25 LD1117AV28(1) LD1117AV33 LD1117AV50(1) LD1117AV OUTPUT VOLTAGE 1.2 V 1.8 V 2.5 V 2.85 V 3.3 V 5V ADJUSTABLE FROM 1.25 to 15V 1. Available on request. 25/27 Revision history LD1117A series 9 Table 13. Date Revision history Document revision history Revision 11 12 13 14 15 16 17 Add new Part Number #12. Mistake VO max. - Table 4. Add new package - D2PAK/A. The DPAK Mechanical Data has been updated. Add new package - D2PAK/A (B Type). Change value VIN on Table 1. and the document has been reformatted. D2PAK/A mechanical data has been updated and add footprint data. Changes 29-Sep-2004 12-Oct-2004 21-Apr-2005 05-Jul-2005 10-Feb-2006 20-Dec-2006 19-Jan-2007 26/27 LD1117A series Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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