Voltage Regulator TLE 4274 / 3.3V;2.5V Features • • • • • • • • Output voltage: 3.3 V/2.5 V ± 4% Current capability 400 mA Very low current consumption Short-circuit proof Reverse polarity proof Suitable for use in automotive electronics Green Product (RoHS compliant) AEC Qualified P-SOT223-4 Functional Description The TLE 4274 / 3.3V;2.5V is a voltage regulator available in a SOT223 and TO252 package. The IC regulates an input voltage up to 40 V to VQrated = 3.3 V/2.5 V. The maximum output current is 400 mA. The IC is shortcircuit proof and has a shutdown circuit protecting it against overtemperature. The TLE 4274 is also available as 5 V, 8.5 V and 10 V version. Please refer to the data sheet TLE 4274. P-TO252-3-1 Dimensioning Information on External Components The input capacitor CI is necessary for compensating line influences. Using a resistor of approx. 1 Ω in series with CI, the oscillating of input inductivity and input capacitance can be damped. The output capacitor CQ is necessary for the stability of the regulation circuit. Stability is guaranteed for capacities CQ ≥ 10 µF with an ESR of ≤ 2.5 Ω within the operating temperature range. Type Package TLE 4274 GSV33 PG-SOT223-4 TLE 4274 DV33 PG-TO252-3-11 TLE 4274 GSV25 PG-SOT223-4 Data Sheet 1 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Circuit Description The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The IC also includes a number of internal circuits for protection against: • • • Overload Overtemperature Reverse polarity PG-TO252-3-11 (D-PAK) PG-SOT223-4 GND Ι 1 GND 2 Q 3 4 GND 1 3 AEP02282 Ι Q AEP02561 Figure 1 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 I Input; block to ground directly at the IC with a ceramic capacitor. 2, 4 GND Ground; PG-TO252-3-11: internally connected to heatsink 3 Q Output; block to ground with capacitor CQ ≥ 10 µF, ESR ≤ 2.5 Ω Data Sheet 2 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Saturation Control and Protection Circuit Temperature Sensor Ι 1 3 Control Amplifier Q Buffer Bandgap Reference 2 GND AEB02283 Figure 2 Data Sheet Block Diagram 3 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Table 2 Absolute Maximum Ratings Tj = -40 to 150 °C Parameter Symbol Limit Values Unit Test Condition Min. Max. VI II -42 45 V – – – – Internally limited VQ IQ -1.0 40 V – – – – Internally limited IGND – 100 mA – Tj Tstg – 150 °C – -50 150 °C – Input Voltage Current Output Voltage Current Ground Current Temperature Junction temperature Storage temperature Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. Table 3 Operating Range Parameter Symbol Input voltage Junction temperature Limit Values Unit Remarks Min. Max. VI Tj 4.7 40 V – -40 150 °C – Rthja Rthja Rthjc Rthjc – 100 K/W SOT2231) – 70 K/W TO2522) – 25 K/W SOT223 – 4 K/W TO252 Thermal Resistance Junction ambient Junction ambient Junction case Junction case 2 1) Soldered in, 1 cm copper area at pin 4, FR4 2) Soldered in, minimal footprint, FR4 Data Sheet 4 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Table 4 Characteristics VI = 6 V; -40 °C < Tj < 150 °C (unless otherwise specified) Parameter Symbol Limit Values Min. Typ. Max. Unit Measuring Condition Output voltage V33-Version VQ 3.17 3.3 3.44 V 5 mA < IQ < 400 mA 4.7 V < VI < 28 V Output voltage V33-Version VQ 3.17 3.3 3.44 V 5 mA < IQ < 200 mA 4.7 V < VI < 40 V Output voltage V25-Version VQ 2.4 2.5 2.6 V 5 mA < IQ < 400 mA 4.7 V < VI < 28 V Output voltage V25-Version VQ 2.4 2.5 2.6 V 5 mA < IQ < 200 mA 4.7 V < VI < 40 V Output current limitation1) IQ 400 600 – mA – Current consumption; Iq Iq = II - IQ – 100 220 µA IQ = 1 mA Current consumption; Iq Iq = II - IQ – 8 15 mA IQ = 250 mA Current consumption; Iq Iq = II - IQ – 20 30 mA IQ = 400 mA Drop voltage1) V33-Version Vdr – 0.7 1.2 V Drop voltage1) V25-Version Vdr – 1.0 2.0 V Load regulation ∆VQ – 40 70 mV Line regulation ∆VQ – 10 25 mV Power supply ripple rejection PSRR – 60 – dB IQ = 300 mA Vdr = VI - VQ IQ = 300 mA Vdr = VI - VQ IQ = 5 mA to 300 mA; VI = 6 V ∆Vl = 12 V to 32 V IQ = 5 mA fr = 100 Hz; Vr = 0.5 Vpp Temperature output voltage drift dVQ/dT – 0.5 – mV/K – 1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 6 V. Data Sheet 5 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Ι 1 4 Q TLE 4274 GSV33 VΙ CQ 100 µ F CΙ 100 nF 2, 4 CQ 10 µF GND R Load VQ AES02284 Figure 3 Measuring Circuit 5 - 40 V Input Ι 1 CΙ 100 nF 4 Q TLE 4274 GSV33 2, 4 3.3 V / 2.5 V Output CQ 10 µF GND AES02285 Figure 4 Data Sheet Application Circuit 6 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Ι 4.5 - 40 V Q CΙ 470 nF CQ1 22 µF TLE 4276 10 V e.g. to sensor INH e.g. to µC Q 3.3 V to µC 1 kΩ GND Ι TLE 4274 GSV33 CQ2 10 µF GND Figure 5 Data Sheet AES02579 Application Example 7 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Typical Performance Characteristics Output Voltage VQ versus Junction Temperature Tj (V33-Version) Output Voltage VQ versus Junction Temperature Tj (V25-Version) AED02288 3.5 AED02806 2.7 VQ V VQ 3.4 V 2.6 VI = 6 V VI = 6 V 3.3 2.5 3.2 2.4 3.1 2.3 3.0 2.2 2.9 -40 0 40 80 2.1 -40 120 ˚C 160 0 40 80 120 ˚C 160 Tj Tj Input Current Iq versus Input Voltage VI (V33-Version) Input Current Iq versus Input Voltage VI (V25-Version) AED01969 3.5 mA II 3.0 2.5 2.5 2.0 2.0 1.5 T j = 25 ˚C R I = 3.3 k Ω 1.5 1.0 1.0 0.5 0.5 0 0 -2 -50 -25 0 25 V -2 -50 50 T j = 25 ˚C R I = 3.3 k Ω -25 0 25 V 50 VI VI Data Sheet AED03016 3.5 mA II 3.0 8 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Current Consumption Iq versus Output Current IQ (low load) Current Consumption Iq versus Output Current IQ (high load) AED02268 0.6 Iq mA Iq mA 0.5 50 T j = 25 ˚C VI = 13.5 V 0.4 40 0.3 30 0.2 20 0.1 10 0 0 10 20 AED02267 60 30 40 mA 0 60 T j = 25 ˚C VI = 13.5 V 0 100 200 300 400 IQ 600 IQ Output Current IQ versus Input Voltage VI Region of Stability for CQ = 10 µF AED02287 800 mA AED03050 10 Ω ESR 9 mA ΙQ 8 600 7 T j = 25 C 6 VQ = 0 V 5 400 4 3 200 2 1 0 0 Data Sheet 10 20 30 0 0.2 40 V 50 VΙ 100 101 102 mA 500 IQ 9 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Package Outlines 1.6 ±0.1 6.5 ±0.2 0.1 MAX. 2 B 0.5 MIN. 1 +0.2 acc. to DIN 6784 3.5 ±0.2 4 7 ±0.3 3 ±0.1 15˚ MAX. A 3 0.28 ±0.04 2.3 0.7 ±0.1 4.6 0.25 M A 0.25 M B GPS05560 Figure 6 PG-SOT223-4 (Plastic Small Outline Transistor) 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). You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Dimensions in mm SMD = Surface Mounted Device Data Sheet 10 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V 6.5 +0.15 -0.10 2.3 +0.05 -0.10 4.57 0.51 min 0.15 max per side 0.9 +0.08 -0.04 B 0.8 ±0.15 9.9 ±0.5 6.22 -0.2 1 ±0.1 A 5.4 ±0.1 3x 0.75 ±0.1 0...0.15 0.5 +0.08 -0.04 2.28 1 ±0.1 0.25 M A B 0.1 GPT09051 All metal surfaces tin plated, except area of cut. Figure 7 PG-TO252-3-11 (Plastic Transistor Single Outline) 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). You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Dimensions in mm SMD = Surface Mounted Device Data Sheet 11 Rev. 2.3, 2008-03-10 TLE 4274 / 3.3V;2.5V Revision History Version Date Rev. 2.3 2008-03-10 Simplified package name to PG-SOT223-4. No modification of released product. Rev. 2.2 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4274 / 3.3V;2.5V Page 1: AEC certified statement added Page 1 and Page 10: RoHS compliance statement and Green product feature added Page 1 and Page 10: Package changed to RoHS compliant version Legal Disclaimer updated Data Sheet Changes 12 Rev. 2.3, 2008-03-10 Edition 2008-03-10 Published by Infineon Technologies AG 81726 Munich, Germany © 2008 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. 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