Data sheet, Rev. 1.0, July 2007 TLE4250-2 Low Dropout Voltage Tracking Regulator Automotive Power

Low Dropout Voltage Tracking Regulator TLE4250-2 1 Overview Features • 50 mA Output Current Capability • Tiny SMD-Package PG-SCT595-5 with lowest thermal resistance • Low Output Tracking Tolerance • Stable with Small Ceramic Output Capacitor • Low Dropout Voltage • Combined Reference / Enable Input • Low Current Consumption in Stand-by Mode PG-SCT595-5 • Maximum Input Voltage -42 V ≤ V ≤ +45 V I • Reverse Polarity Protection • Output Short Circuit Proof to Ground and Supply • Overtemperature Protection • Temperature Range -40 °C ≤ T ≤ 150 °C j • Green Product (RoHS compliant) • AEC Qualified Functional Description The TLE4250-2 is a monolithic integrated low dropout voltage tracker in a tiny SMD package PG-SCT595-5 with excellent thermal resistance. It is designed to supply off-board loads (e.g. sensors) in automotive environment. The IC protects itself in case of overload, overtemperature, reverse polarity as well as output short circuit to battery and ground. Supply voltages up to V = 45 V are regulated to a reference voltage applied at the adjust input “ADJ” with high I accuracy. The output “Q” is able to drive loads up to 50 mA. In order to reduce the quiescent current to a minimum, the TLE4250-2 can be switched to stand-by mode by setting the adjust/enable input “ADJ/EN” to “low”. Type Package Marking TLE4250-2G PG-SCT595-5 52 Data sheet 2 Rev. 1.0, 2007-07-24

TLE4250-2 Block Diagram 2 Block Diagram Regulated Supply I TLE 4250-2 Q Output Voltage C I Saturation Control Temp. ADJ/EN Internal Current Limitation Protection Supply C Q off-board load Reference Voltage ADJ/EN divider optional GND BlockDiagram.vsd Figure1 Block Diagram and Simplified Typical Application 3 Pin Configuration 3.1 Pin Assignment ADJ/EN 1 5 GND GND 2 I 3 4 Q Pinout.vsd Figure2 Pin Configuration Package PG-SCT595-5 3.2 Pin Definitions and Functions Pin Symbol Function 1 ADJ/EN Adjust / Enable. Connect the reference to this pin. A low signal disables the IC; a high signal switches it on. The reference voltage can be connected directly or by a voltage divider for lower output voltages. For compensating line influences, a capacitor close to the IC pins is recommended. 2 GND Ground Reference. Internally connected to Pin 5. Connect to heatsink area. 3 I Input. IC supply. For compensating line influences, a capacitor close to the IC pins is recommended. 4 Q Tracker Output. Block to GND with a capacitor close to the IC terminals, respecting capacitance and ESR requirements given in the table “Functional Range”. 5 GND Ground Reference. Internally connected to Pin 2. Connect to heatsink area. Data sheet 3 Rev. 1.0, 2007-07-24

TLE4250-2 General Product Characteristics 4 General Product Characteristics 4.1 Absolute Maximum Ratings Absolute Maximum Ratings1) -40 °C ≤ T ≤ 150 °C; all voltages with respect to ground (unless otherwise specified). j Pos. Parameter Symbol Limit Values Unit Conditions Min. Max. Voltages 4.1.1 Input voltage V -42 45 V – I 4.1.2 Output voltage V -1 40 V – Q 4.1.3 Adjust / Enable Input V -0.3 40 V – ADJ/EN Temperatures 4.1.4 Junction Temperature T -40 150 °C – j 4.1.5 Storage Temperature T -50 150 °C – stg ESD Susceptibility 4.1.6 ESD Resistivity V -3 3 kV HBM2) ESD,HBM 4.1.7 V -2 2 kV CDM3) ESD,CDM 1) Not subject to production test, specified by design. 2) ESD susceptibility, Human Body Model “HBM” according to EIA/JESD 22-A114B 3) ESD susceptibility, Charged Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM5.3.1 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. Data sheet 4 Rev. 1.0, 2007-07-24

TLE4250-2 General Product Characteristics 4.2 Functional Range Pos. Parameter Symbol Limit Values Unit Conditions Min. Max. 4.2.1 Input Voltage V 4 40 V – I 4.2.1 Adjust / Enable Input Voltage V 2.5 36 V – ADJ/EN (Voltage Tracking Range) 4.2.2 Junction Temperature T -40 150 °C – j 4.2.3 Output Capacitor Requirements C 1 – µF – 1) Q 4.2.4 ESR – 3 Ω – 2) CQ 1) The minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 30% 2) relevant ESR value at f = 10 kHz 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. 4.3 Thermal Resistance Pos. Parameter Symbol Limit Value Unit Conditions Min. Typ. Max. 4.3.5 Junction to Ambient R – 81 – K/W 2s2p board1) thJA 4.3.1 – 217 – K/W Footprint only2) 4.3.2 – 117 – K/W 300 mm2 PCB heatsink area2) 4.3.3 – 103 – K/W 600 mm2 PCB heatsink area2) 4.3.4 Junction to Soldering Point R – 30 – K/W Pins 2, 5 fixed to T thJSP A 1) Specified R value is according to JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The product thJA (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). Where applicable a thermal via array under the package contacted the first inner copper layer. 2) Package mounted on PCB FR4; 80 x 80 x 1.5 mm; 35 µm Cu, 5 µm Sn; horizontal position; zero airflow. Not subject to production test; specified by design. Data sheet 5 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics 5 Electrical Characteristics 5.1 Tracking Regulator The output voltage V is controlled by comparing it to the voltage applied at pin ADJ/EN and driving a PNP pass Q transistor accordingly. The control loop stability depends on the output capacitor C , the load current, the chip Q temperature and the poles/zeros introduced by the integrated circuit. To ensure stable operation, the output capacitor’s capacitance and its equivalent series resistor ESR requirements given in the table “Functional Range” have to be maintained. For details see also the typical performance graph “Output Capacitor Series Resistor ESR vs. Output Current I ”. Also, the output capacitor shall be sized to buffer load transients. CQ Q An input capacitor C is recommended to buffer line influences. Connect the capacitors close to the IC terminals. I Protection circuitry prevent the IC as well as the application from destruction in case of catastrophic events. These safeguards contain output current limitation, reverse polarity protection as well as thermal shutdown in case of overtemperature. In order to avoid excessive power dissipation that could never be handled by the pass element and the package, the maximum output current is decreased at high input voltages. The overtemperature protection circuit prevents the IC from immediate destruction under fault conditions (e.g. output continuously short-circuited) by reducing the output current. A thermal balance below 200°C junction temperature is established. Please note that a junction temperature above 150°C is outside the maximum ratings and reduces the IC lifetime. The TLE4250-2 allows a negative supply voltage. However, several small currents are flowing into the IC. For details see electrical characteristics table and typical performance graphs. The thermal protection circuit is not operating during reverse polarity condition. Table1 Electrical Characteristics Tracking Regulator V = 13.5 V; V ≥ 2.5 V; -40 °C ≤ T ≤ 150 °C; all voltages with respect to ground (unless otherwise specified). I ADJ/EN j Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.1.1 Output Voltage Tracking ∆V -5 – 5 mV 1 mA ≤ I ≤ 10 mA; Q Q Accuracy 6 V ≤ V ≤ 16 V I 5.1.2 -25 – 25 mV 1 mA ≤ I ≤ 50 mA; Q 6 V ≤ V ≤ 28 V I 5.1.3 -25 – 25 mV 1 mA ≤ I ≤ 10 mA; Q 6 V ≤ V ≤ 40V I 5.1.4 Load Regulation |dV | – – 15 mV I = 1 mA to 30 mA; Q,load Q steady-state 5.1.5 Line Regulation |dV | – – 10 mV V = 6 V to 40 V; Q,line I steady-state I = 10 mA Q 5.1.6 Power Supply Ripple PSRR – 48 – dB f = 100 Hz; ripple Rejection V = 1 Vpp 1) ripple 5.1.7 Dropout Voltage V – 100 300 mV I = 10 mA dr Q V = V - V V ≥ 4 V 2) dr I Q ADJ 5.1.8 Output Current Limitation I 51 85 120 mA V = (V - 0.1 V) Q,max Q ADJ Data sheet 6 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics Table1 Electrical Characteristics Tracking Regulator V = 13.5 V; V ≥ 2.5 V; -40 °C ≤ T ≤ 150 °C; all voltages with respect to ground (unless otherwise specified). I ADJ/EN j Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.1.9 Reverse Current I -5 -1 – mA V = 0V; Q I V = 16V; Q V = 5V ADJ 5.1.10 Reverse Current I -10 -2 – mA V = -16V; I I at Negative Input Voltage V = 0V; Q V = 5V ADJ Overtemperature Protection: 5.1.11 Junction Temperature T 151 – 200 °C T increasing due to power j,eq j Equilibrium dissipation generated by the IC 1) 1) Parameter not subject to production test; specified by design. 2) Measured when the output voltage V has dropped 100 mV from its nominal value. Q Data sheet 7 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics Typical Performance Characteristics Tracking Regulator V = 5 V (unless otherwise noted) ADJ/EN Output Voltage V vs. Output Voltage V vs. Q Q Adjust Voltage V Input Voltage V ADJ I VQ-VADJ.vsd VQ-VI.vsd V [V] V = 13.5 V V [V] V = 13.5 V Q I Q I V dr 4 4 3 3 2 2 T = 150 °C j T = -40 °C j T = -40 °C 1 j 1 T = 150 °C j 1 2 3 4 1 3 5 7 V [V] V [V] ADJ I Maximum Output Current I vs. Line Regulation dV vs. Q Q,line Input Voltage V Input Voltage Change dV) I I 120 SOA.VSD dVQ-dVI.vsd V = 5 V ∆V [mV] V = 6 V IQ [mA] ADJ Q VI,initia l = 5 V ADJ I = 5 mA Q T = 25 °C j 80 0.3 T = 125 °C j 60 0.2 40 0.1 20 0 steady-state condition 0 10 20 30 40 0 5 10 15 20 25 30 35 40 VI[V] ∆V [V] I Data sheet 8 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics Typical Performance Characteristics Tracking Regulator V = 5 V (unless otherwise noted) ADJ/EN Load Regulation dV vs. Output Capacitor Series Resistor ESR Q,line CQ Output Current Change dI vs. Output Current I Q Q dVQ-dIQ.vsd 10 ESR-IQ.vsd ∆VQ [mV] IQ,initial = 1 mA ES[ΩR]CQ V = 5 V ADJ C = 2.2 µF Q C = 1 µF -2 T = 25 °C 1 Q j -4 Stable Region T = 125 °C j -6 0.1 -8 V < 28 V I steady-state condition -40 °C < Tj < 150 °C 0.01 0 12 24 36 48 0 10 20 30 40 50 ∆Ι [mA] I [mA] Q Q Line Transient Response Load Transient Response dVI-reponse.vsd dIQresponse.vsd ∆VQ ∆V [mV] [mVQ] 0 0 -20 -40 -50 V = 13.5 V I = 5 mA I Q V = 5 V C = 2.2 µF Ceramic ADJ Q C = 2.2 µF Ceramic V Ι Q I Q [V] [mA] 16 30 9 5 0 20 40 60 80 0 20 40 60 80 t [µs] t [µs] Data sheet 9 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics Typical Performance Characteristics Tracking Regulator V = 5 V (unless otherwise noted) ADJ/EN Tracking Accuracy ∆V vs. Dropout Voltage V vs. Q dr Junction Temperature T Output Current I j Q dVQ-Tj.vsd Vdr-IQ_log.vsd ∆V V [mV] [mVQ] dr T = 150 °C j 8 I = 50 mA T = 25 °C Q j 4 100 0 I = 1 mA Q -4 10 -40 -20 0 20 40 60 80 100 120 140 1 10 50 T [°C] I [mA] j Q Dropout Voltage V vs. Output Current Limitation I dr Q,max Junction Temperature T vs. Output Voltage V j Q Vdr-Tj.vsd IQmax-VQ.vsd V = 13.5 V I V = 5 V V [mV] ADJ dr 5 V [V] Q 250 200 3 T = 125°C T = 25°C j j 150 I = 10 mA 2 Q 100 1 0 -40 -20 0 20 40 60 80 100 120 140 20 40 60 80 100 T [°C] I [mA] j Q Data sheet 10 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics Typical Performance Characteristics Tracking Regulator V = 5 V (unless otherwise noted) ADJ/EN Reverse Output Current I vs. Reverse Current I vs. Q I Output Voltage V Input Voltage V Q I +0.5 IQ-VQ.vsd +0.5 II-VI.vsd IQ[mA] VI = 0 V II[mA] VQ = 0 V V = 5 V V = 5 V ADJ ADJ -0.5 -0.5 -1 -1 T = -40 °C j T = -40 °C j -1.5 -1.5 T = 150 °C j T = 150 °C j -2 -2 0 8 16 24 32 -32 -24 -16 -8 0 V [V] V [V] Q I Power Supply Ripple Rejection PSRR 60 PSRR.vsd PSRR [dB] I = 5 mA Q 40 30 20 V = 1 V RIPPLE V = 13.5 V 10 IN C = 2.2 µF Ceramic Q T = 25 °C j 0.01 0.1 1 10 100 f [kHz] Data sheet 11 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics 5.2 Current Consumption Table2 Electrical Characteristics Current Consumption V = 13.5 V; V ≥ 2.5 V; -40 °C ≤ T ≤ 150 °C; all voltages with respect to ground (unless otherwise specified). I ADJ/EN j Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.2.1 Quiescent Current I – 10 20 µA V ≤ 0.4 V; q1 ADJ/EN Stand-by Mode T ≤ 85 °C j 5.2.2 Current Consumption I – 140 200 µA I ≤ 1 mA; q2 Q 5.2.3 I = I - I – 3 5 mA I ≤ 30 mA; q I Q Q 5.2.4 Current Consumption I – 1 2 mA V = V = 5 V; q3 ADJ I Dropout Region; I = I - I I = 0 mA q I Q Q Typical Performance Characteristics Current Consumption V = 5 V (unless otherwise noted) ADJ/EN Current Consumption I , I Current Consumption I vs. q1 q2 q2 vs. Junction Temperature T Output Current I j Q Iq-Tj.vsd Iq-IQ.vsd I [mA] I [mA] q2 I = 30 mA q V = 5 V Q EN/ADJ V = 9 V I V= 13.5 V I 1 V = 13.5V I V = 5 V EN/ADJ V = 32 V I = 1 mA I Q 0.1 1 I [µA] V= 32 V q1 I V = 13.5V I V = 0 V 16 EN/ADJ 12 0.1 -40 -20 0 20 40 60 80 100 120 140 1 10 50 T [°C] I [mA] j Q Data sheet 12 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics Current Consumption I vs. q2 Input Voltage V I 12 Iq-VI.vsd V = 5 V I [mA] ADJ q 8 IQ = 50 mA 6 4 I = 30 mA Q 2 I = 10 mA Q 6 10 14 18 22 24 V [V] I Data sheet 13 Rev. 1.0, 2007-07-24

TLE4250-2 Electrical Characteristics 5.3 Adjust / Enable Input In order to reduce the quiescent current to a minimum, the TLE4250-2G can be switched to stand-by mode by setting the adjust/enable input “ADJ/EN” to “low”. Table3 Electrical Characteristics Adjust / Enable V = 13.5 V; V ≥ 2.5 V; -40 °C ≤ T ≤ 150 °C; I ADJ j all voltages with respect to ground, positive current flowing into pin (unless otherwise specified). Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.3.1 Adjust / Enable I – 0.1 0.5 µA V = 5 V; ADJ ADJ Input Current 5.3.2 Adjust / Enable V – – 0.4 V V = 0 V; ADJ,low Q Low Signal Valid 5.3.3 Adjust / Enable V 2.5 – 36 V |V - V | < 25 mV; ADJ,high Q ADJ High Signal Valid (Tracking Region) Typical Performance Characteristics Adjust / Enable Input VADJ/EN = 5V (unless otherwise noted) Startup Sequence 4250-2_startup.vsd V [V] Overshoot depends on load current, C ,ESR Q CQ 4 V ADJ 3 2 dV / dt = Q (I -I ) / C Q,max Load Q 1 0 20 40 60 80 100 120 140 t[µs] Data sheet 14 Rev. 1.0, 2007-07-24

TLE4250-2 Package Outlines 5 Package Outlines 2.9±0.2 B (2.2) 1.2+0.1 -0.05 (0.3) 1.1 MAX. (0.4)1) 0.1 MAX. +0.2 5 4 (0.13) 1)(0.23) 1 2 30.3-+00a..0c15c. to DIN 6784 2.5±0.1 0.25±0.1 10˚ MAX. 0.15+0.110˚ MAX. A1.6±0.1 0.6+0.1 -0.06 -0.05 0.95 0.2 M A 1.9 1) Contour of slot depends on profile 0.25M B of gull-wing lead form GPW05997 Figure3 Outline PG-SCT595-5 2.3 2.3 N. 1.3 1.3 MI 3 1. 9 9 1. 2. 1.45 6 1. 0.4 0.75 0.4 0.95 0.75 HLG09053 0.95 HLG09090 Reflow Soldering Wave Soldering Figure4 Footprint PG-SCT595-5 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 Dimensions in mm Data sheet 16 Rev. 1.0, 2007-07-24

TLE4250-2 Revision History 6 Revision History Revision Date Changes Rev. 1.0 2007-07-24 • Final Datasheet Initial Version Data sheet 17 Rev. 1.0, 2007-07-24

Edition 2007-07-24 Published by Infineon Technologies AG 81726 Munich, Germany © 2007 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. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

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