IFX2931 Low Dropout Linear Voltage Regulator IFX2931GV50 IFX2931GV33 Data Sheet Rev. 1.13, 2011-02-10 Standard Power Low Dropout Linear Voltage Regulator 1 IFX2931 Overview Features • • • • • • • • • Very Low Quiescent Current Output Current in Excess of 100mA Input-Output Differential Less than 0.6V for 5V-Version Reverse Battery Protection Output Current Limitation Overtemperature Shutdown Mirror-Image Insertion Protection Needs only small Output Capacitor COUT = 10 µF Green Product (RoHS compliant) PG-DSO-8 For automotive and transportation applications, please refer to the Infineon TLE and TLF voltage regulator series. General Description The IFX2931 is a positive voltage regulator with a very low quiescent current of 1mA or less when supplying 10mA loads. The IFX2931GV50 also offers an extremely low dropout voltage required for proper regulation: 0.2V for output currents of 10mA. Therefore the IFX2931 is the ideal supply for standby power systems. It is suitable for e.g. memory standby circuits, CMOS and other low power processor power supplies. It certainly can also be used for any system demanding as much as 100mA of output current. The IFX2931 is protected from reverse polarity condition and can withstand input voltages of 28 V continously. The IFX2931 cannot be harmed by temporary mirror-image insertion. Additional protection features such as output current limitation and overtemperature shutdown are also implemented. The IFX2931 comes in an 8-lead SMD package (PG-DSO-8). Type Package Marking IFX2931GV50 PG-DSO-8 IFX2931 IFX2931GV33 PG-DSO-8 2931V33 Data Sheet 2 Rev. 1.13, 2011-02-10 IFX2931 Block Diagram 2 Block Diagram Saturation Control and Protection Circuit Temperature Sensor Input 8 1 Control Amplifier Adjustment Output Buffer Bandgap Reference 2,3,6,7 GND AEB01527 Figure 1 Data Sheet Block Diagram 3 Rev. 1.13, 2011-02-10 IFX2931 Pin Configuration 3 Pin Configuration 3.1 Pin Assignment PG-DSO-8 OUT GND GND n.c. 1 2 3 4 8 IN 7 6 5 GND GND n.c. PINCONFIG_DSO-8.VSD Figure 2 Pin Configuration 3.2 Pin Definitions and Functions IFX2931GV50, IFX2931GV33 (PG-DSO-8) Pin Symbol Function 1 OUT Output block to GND with a capacitor close to the IC terminals, respecting the values given for its capacitance COUT and ESR in “Typical Performance Characteristics” on Page 9 2,3,6,7 GND Ground 4,5 n.c. not connected 8 IN Input for compensating line influences, a capacitor to GND close to the IC terminals is recommended Data Sheet 4 Rev. 1.13, 2011-02-10 IFX2931 General Product Characteristics 4 General Product Characteristics 4.1 Absolute Maximum Ratings Absolute Maximum Ratings 1) Tj = -40 C to 125 C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Max. Unit Conditions Input 4.1.1 Voltage VI -30 28 V – Voltage VOUT -0.3 28 V – Tj Tstg -40 125 C – -55 150 C – VESD -2 2 kV HBM2) Output 4.1.2 Temperatures 4.1.3 Junction Temperature 4.1.4 Storage Temperature ESD Susceptibility 4.1.5 ESD Resistivity to GND 1) Not subject to production test, specified by design. 2) ESD susceptibility, HBM according to EIA/JESD 22-A114B Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous repetitive operation. 4.2 Pos. 4.2.1 Functional Range Parameter Input Voltage Symbol VI 4.2.2 4.2.3 Junction Temperature Tj Limit Values Unit Conditions Min. Max. 6 28 V IFX2931GV50 4.4 26 V IFX2931GV33 -40 125 C – Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table. Data Sheet 5 Rev. 1.13, 2011-02-10 IFX2931 General Product Characteristics 4.3 Pos. Thermal Resistance Parameter Symbol Limit Values Min. Typ. Max. Unit Conditions IFX2931GV50, IFX2931GV33 (PG-DSO-8) 4.3.1 Junction to Soldering Point1) RthJSP – 39 – K/W measured to group of pins 2, 3, 6, 7 4.3.2 Junction to Ambient1) RthJA – 96 – K/W Footprint only2) 4.3.3 – 67 – K/W 300mm2 heatsink area on PCB2) 4.3.4 – 66 – K/W 600mm2 heatsink area on PCB2) 1) not subject to production test, specified by design 2) Specified RthJA value is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The Product (Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu). Data Sheet 6 Rev. 1.13, 2011-02-10 IFX2931 Electrical Characteristics 5 Electrical Characteristics 5.1 Electrical Characteristics IFX2931GV50 Electrical Characteristics VI = 14 V, Tj = -40 C to 125 C, IOUT = 10 mA, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol 5.1.1 Output Voltage VOUT 5.1.2 Line Regulation VOUT,line Load Regulation 1) Min. Typ. Max. 4.75 5 5.25 Unit Conditions V Tj = 25 °C 4.5 5 5.5 V – – 2 10 mV 9 V < VI < 16 V – 4 30 mV 6 V < VI < 26 V VOUT,load – -14 -50 mV 5 mA < IOUT < 100 mA ZOUT – 200 – m IOUT = 100 mADC and IOUT = 10 mArms – 0.4 1 mA – 9 15 mA – 500 – µVrms 5.1.3 5.1.4 Limit Values 5.1.5 Output Impedance 5.1.6 Current Consumption Iq 5.1.8 Output Noise Voltage1) Vnoise 5.1.9 Long Term Stability1) VOUT,1000h – 20 – mV – /1000h 5.1.10 Ripple Rejection1) 80 – dB fripple = 120 Hz 5.1.11 PSRR VDR – 2) – 0.05 0.2 V – 0.3 0.6 V IOUT = 10 mA IOUT = 100 mA 100 Hz - 10 kHz 5.1.7 5.1.12 Dropout Voltage VI - VOUT IOUT = 10 mA 6 V < VI < 26 V IOUT = 100 mA 100 Hz - 10 kHz COUT = 100 µF 1) not subject to production test, specified by design 2) obtained when the output voltage has dropped 100mV below the nominal value Data Sheet 7 Rev. 1.13, 2011-02-10 IFX2931 Electrical Characteristics 5.2 Electrical Characteristics IFX2931GV33 Electrical Characteristics VI = 14 V, Tj = -40 C to 125 C, IOUT = 10 mA, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol 5.2.1 Output Voltage VOUT Limit Values Unit Conditions Tj = 25 °C 4.4 V < VI < 26 V IOUT = 100 mA 4.4 V < VI < 26 V Tj = 25 °C 5 mA < IOUT < 100 mA Tj = 25 °C IOUT = 100 mADC and IOUT = 10 mArms Min. Typ. Max. 3.135 3.3 3.465 V 2.97 3.3 3.63 V 5.2.2 Line Regulation VOUT,line – 4 33 mV 5.2.3 Load Regulation VOUT,load – -10 -50 mV 5.2.4 Output Impedance1) ZOUT – 200 – m 100 Hz - 10 kHz 5.2.5 Iq Current Consumption 5.2.6 1) Vnoise – 0.4 1 mA IOUT = 10 mA 4.4 V < VI < 26 V – 15 – mA IOUT = 100 mA – 330 – µVrms 10 Hz - 100 kHz COUT = 100 µF 5.2.7 Output Noise Voltage 5.2.8 Long Term Stability1) VOUT,1000h – 13 – mV – /1000h 5.2.9 Ripple Rejection1) PSRR VDR – 80 – dB fripple = 120 Hz – 0.85 1.1 V IOUT = 100 mA, Tj = 25 °C 5.2.10 Dropout Voltage VI - VOUT 2) 1) not subject to production test, specified by design 2) obtained when the output voltage has dropped 100mV below the nominal value Data Sheet 8 Rev. 1.13, 2011-02-10 IFX2931 Electrical Characteristics 5.3 Typical Performance Characteristics Dropout Voltage VDR versus Output Current IOUT IFX2931GV50: Output Voltage VOUT versus Input Voltage VI AED01978 800 V DR mV 700 AED01984 6 VQ V R L = 50 Ω 5 600 4 500 Tj = 125 C 400 3 300 2 200 Tj = 25 C 1 100 0 25 50 75 100 125 mA 0 175 0 2 4 6 ΙQ Load Transient Response V OUT [mV] 40 IQ = mA 50 C OUT = 100 µF ESR(C OUT) = 0.4 0 -20 -40 -60 1,5 0 160 140 120 100 80 60 40 20 0 -80 OUT 1,0 0 0,5 0 0 2 4 6 8 1 0 -10 0 10 20 30 40 50 60 70 80 90 t [µs] V I [V] Data Sheet 20 2,0 0 [mA] VQ [V] 2,5 0 0,0 0 LOADTRANSIENTRESPONSE.VSD 60 V33_IQ_VI.VSD 3,0 0 V 10 VΙ IFX2931GV33: Output Voltage VOUT versus Input Voltage VI 3,5 0 8 9 Rev. 1.13, 2011-02-10 IFX2931 Electrical Characteristics IFX2931GV50: Output Voltage VOUT versus Junction Temperature Tj IFX2931GV33: Output Voltage VOUT versus Junction Temperature Tj AED01982 5.20 V33_VQ_TJ.VSD 3,50 V VQ 3,40 5.10 V I = 14 V Vi = 13.5 V 3,30 V Q [V] 5.00 4.90 3,20 3,10 4.80 3,00 4.70 2,90 4.60 -40 0 40 80 -40 120 C 160 Tj Output Current IOUT versus Input Voltage VI 10 60 110 160 T j [°C] Current Consumption Iq versus Low Output Current IOUT AED01983 200 AED01981 3.0 Ι Q mA Ι q mA 2.5 150 2.0 Tj = 25 C 100 1.5 Tj = 125 C 1.0 Vi = 13.5 V 50 0.5 0 0 10 20 30 0 40 V 50 VΙ Data Sheet 10 0 5 10 15 20 30 mA ΙQ Rev. 1.13, 2011-02-10 IFX2931 Electrical Characteristics Current Consumption Iq versus Output Current IOUT Current Consumption Iq versus Input Voltage VI AED01980 12 IQ_VI.VSD 12 Ι q mA 10 10 R I q [mA] Vi = 13.5 V 6 6 4 4 R L = 100 2 2 0 0 50 100 mA 0 150 ΙQ Data Sheet = 50 8 8 0 L 10 20 30 40 V I [V] 11 Rev. 1.13, 2011-02-10 IFX2931 Electrical Characteristics Power Supply Ripple Rejection PSRR versus Frequency f 90,00 IFX2931GV50: Output Capacitor’s Equivalent Series Resistance ESR(COUT) versus Output Current IOUT ESR_IOUT.VSD 10,00 PSRR_F.VSD 9,00 80,00 Unstable Region I OUT = 1 mA 8,00 70,00 C OUT = 10 µF I OUT = 10 mA ) [] OUT 50,00 ESR(C PSRR [dB] 60,00 7,00 I OUT = 100 mA 40,00 30,00 6,00 5,00 Stable Region 4,00 3,00 C OUT = 10 µF ESR(C OUT ) = 0,02 20,00 2,00 10,00 1,00 0,00 0,01 0,00 0,1 1 10 0 100 20 40 60 80 100 I OUT [mA] f [kHz] IFX2931GV33: Output Capacitor’s Equivalent Series Resistance ESR(COUT) versus Output Current IOUT V33_ESR_IOUT.VSD 10,00 9,00 Unstable Region 8,00 ESR(C OUT ) [ ] 7,00 6,00 5,00 C OUT = 10 µF 4,00 3,00 Stable Region 2,00 1,00 0,00 0 20 40 60 80 100 I OUT [mA] Data Sheet 12 Rev. 1.13, 2011-02-10 IFX2931 Package Outlines 6 Package Outlines 0.1 2) 0.41+0.1 -0.06 0.2 8 5 1 4 5 -0.2 1) M B 0.19 +0.06 C 8 MAX. 1.27 4 -0.21) 1.75 MAX. 0.175 ±0.07 (1.45) 0.35 x 45˚ 0.64 ±0.25 6 ±0.2 A B 8x 0.2 M C 8x A Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area GPS01181 Figure 3 PG-DSO-8 Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). For further information on alternative packages, please visit our website: http://www.infineon.com/packages. Data Sheet 13 Dimensions in mm Rev. 1.13, 2011-02-10 IFX2931 Revision History 7 Revision History Revision Date Changes 1.13 2011-02-10 Editorial change on page 9 (Typo) 1.12 2010-02-23 Editorial change 1.11 2009-10-19 Coverpage changed Overview page: Inserted reference statement to TLE/TLF series. 1.1 2009-05-04 Version with 3.3V output voltage and all related description added Form Page 2 on on top right “IFX2931GV50” updated to “IFX2931” In “Features” on Page 2 “Input-Output Differential Less than 0.6V” updated to “Input-Output Differential Less than 0.6V for 5V-Version” In “General Description” on Page 2, all “IFX2931GV50” replaced by “IFX2931”; in line 2, “It” replaced by “The IFX2931GV50”; In “Pin Configuration” on Page 4 “, IFX2931GV33” added In “Functional Range” on Page 5 Item 4.2.2 added, in Item 4.2.1’s Condition “IFX2931GV50” added In Table 4.3 “Thermal Resistance” on Page 6 “, IFX2931GV33” added “Electrical Characteristics IFX2931GV50” on Page 7 updated: “IFX2931GV50” added in this heading Table 5.2 “Electrical Characteristics IFX2931GV33” on Page 8 added In “Typical Performance Characteristics” on Page 9 performance characteristics “IFX2931GV33: Output Voltage VOUT versus Input Voltage VI” on Page 9, “IFX2931GV33: Output Voltage VOUT versus Junction Temperature Tj” on Page 10 and “IFX2931GV33: Output Capacitor’s Equivalent Series Resistance ESR(COUT) versus Output Current IOUT” on Page 12 added; “IFX2931GV50” added in description of performance characteristics “IFX2931GV50: Output Voltage VOUT versus Input Voltage VI” on Page 9, “IFX2931GV50: Output Voltage VOUT versus Junction Temperature Tj” on Page 10 and “IFX2931GV50: Output Capacitor’s Equivalent Series Resistance ESR(COUT) versus Output Current IOUT” on Page 12 1.0 Data Sheet 2008-04-21 final version data sheet 14 Rev. 1.13, 2011-02-10 Edition 2011-02-10 Published by Infineon Technologies AG 81726 Munich, Germany © 2011 Infineon Technologies AG All Rights Reserved. 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