OPTIREG™ Linear TLE4279 5V low drop fixed voltage regulator Features • Output voltage tolerance ≤ ±2% • 150 mA current capability • Very low current consumption • Early warning • Reset output low down to V = 1 V Q • Overtemperature protection • Reverse polarity proof • Adjustable reset threshold • Very low-drop voltage • Wide temperature range • Green Product (RoHS compliant) Potential applications General automotive applications. Product validation Qualified for Automotive Applications. Product Validation according to AEC-Q100/101 Description The OPTIREG™LinearTLE4279 is an automotive voltage regulator with a 5V fixed output, in a PG-DSO-8 or PG-DSO-14 package. The maximum operating voltage is 45V. The output is able to drive 150 mA load. The device features short-circuit protection. The thermal shutdown feature switches the output off when the junction temperature exceeds 150°C to ensure the device is not damaged by overheating. A reset signal is generated when the output voltage drops below V < 4.65V. The reset threshold voltage can be decreased by Q an external connection of a voltage divider. The reset delay time can be set by an external capacitor. If the application requires pull-up resistors at the logic outputs (Reset, Sense Out) the TLE4269 with integrated resistors can be used. It is also possible to supervise the input voltage by using an integrated comparator to give a low voltage warning. Type Package Marking TLE4279G PG-DSO-8 TLE4279 TLE4279GM PG-DSO-14 TLE4279 Data Sheet Rev. 2.5 www.infineon.com 1 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Table of Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 Application description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.1 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Data Sheet 2 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Block diagram 1 Block diagram Ι Q Error Amplifier Reference Current and Saturation Control Trimming D RO & Reference SO RADJ SI AEB01955 Figure1 Block diagram Data Sheet 3 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Pin configuration 2 Pin configuration Ι 1 8 Q SΙ 2 7 SO RADJ 3 6 RO D 4 5 GND AEP01668 Figure2 Pin configuration PG-DSO-8 (top view) Table1 Pin definitions and functions (TLE4279G) Pin No. Symbol Function 1 I Input; block to GND directly at the IC with a ceramic capacitor 2 SI Sense input; if not needed connect to Q 3 RADJ Reset threshold adjust; if not needed connect to ground 4 D Reset delay; to select the delay time, connect to GND via external capacitor 5 GND Ground 6 RO Reset output; open-collector output. Keep open, if not needed 7 SO Sense output; open-collector output. Keep open, if not needed 8 Q 5-V output; connect to GND with a 10 µF capacitor, ESR < 10Ω RADJ 1 14 SI D 2 13 Ι GND 3 12 GND GND 4 11 GND GND 5 10 GND GND 6 9 Q RO 7 8 SO AEP02248 Figure3 Pin configuration PG-DSO-14 (top view) Table2 Pin definitions and functions (TLE4279GM) Pin No. Symbol Function 1 RADJ Reset threshold adjust; if not needed connect to GND 2 D Reset delay; connect to GND via external delay capacitor for setting delay time 3, 4, 5, 6 GND Ground Data Sheet 4 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Pin configuration Table2 Pin definitions and functions (TLE4279GM) (cont’d) Pin No. Symbol Function 7 RO Reset output; open-collector output. Keep open, if not needed 8 SO Sense output; open-collector output. Keep open, if not needed 9 Q 5-V output; connect to GND via 10 µF capacitor, ESR < 10Ω 10, 11, 12 GND Ground 13 I Input; block to GND directly at the IC by a ceramic capacitor 14 SI Sense input; if not needed connect to Q Data Sheet 5 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator General product characteristics 3 General product characteristics 3.1 Absolute maximum ratings Table3 Absolute maximum ratings T = -40 to 150 °C j Parameter Symbol Values Unit Note or TestCondition Min. Typ. Max. Input Input voltage V -40 – 45 V – I Input current I – – – – internal limited I Sense input Input voltage V -40 – 45 V – SI Input current I 1 – 1 mA – SI Reset threshold Voltage V -40 – 7 V – RADJ Current I -10 – 10 mA – RADJ Reset delay Voltage V -0.3 – 7 V – D Current I – – – – internal limited D Ground Current I 50 – – mA – GND Reset output Voltage V -0.3 – 7 V – R Current I – – – – internal limited R Sense output Voltage V -0.3 – 7 V – SO Current I – – – – internal limited SO 5-V Output Output voltage V -0.5 – 7 V – Q Output current I -10 – – mA – Q Temperature Junction temperature T – – 150 °C – j Storage temperature T -50 – 150 °C – Stg Data Sheet 6 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator General product characteristics Table3 Absolute maximum ratings (cont’d) T = -40 to 150 °C j Parameter Symbol Values Unit Note or TestCondition Min. Typ. Max. Operating range Input voltage V – – 45 V – I Junction temperature T -40 – 150 °C – j Thermal data Junction-ambient R – – 200 K/W PG-DSO-8 thja – 70 K/W PG-DSO-14 Junction-pin R – – 30 K/W PG-DSO-141) thjp 1) measured to Pin 4 Data Sheet 7 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator General product characteristics 3.2 Electrical characteristics Table4 Electrical characteristics V = 13.5 V; -40 °C ≤ T ≤ 125 °C I j Parameter Symbol Values Unit Note or TestCondition Min. Typ. Max. Output voltage V 4.90 5.00 5.10 V 1 mA ≤ I ≤ 100 mA Q Q 6 V ≤ V ≤ 16 V I Current limit I 150 200 500 mA – Q Current consumption; I – 150 300 µA I ≤ 1 mA, T < 85 °C q Q j I = I - I q I Q Current consumption; I – 250 700 µA I = 10 mA q Q I = I - I q I Q Current consumption; I – 2 8 mA I = 50 mA q Q I = I - I q I Q Drop voltage V – 0.25 0.5 V I = 100 mA1) dr Q Load regulation ∆V – 10 30 mV I = 5 mA to 100 mA Q Q Line regulation ∆V – 10 40 mV V = 6 V to 26 V Q I I = 1 mA Q Reset generator Switching threshold V 4.50 4.65 4.80 V – RT Reset adjust switching voltage V 1.26 1.35 1.44 V V > 3.5 V RADJ,TH Q Reset low voltage V – 0.1 0.4 V R = 20 kΩ RO,SAT extern Upper delay switching threshold V 1.4 1.8 2.2 V – UD Lower delay switching threshold V 0.3 0.45 0.60 V – LD Reset delay low voltage V – – 0.1 V V < V D,SAT Q RT Charge current I 3.0 6.5 9.5 µA V = 1 V D D Delay time L → H t 17 28 – ms C = 100 nF d D Delay time H → L t – 1 – µs C = 100 nF t D Input voltage sense Sense threshold high V 1.24 1.31 1.38 V – SI, high Sense threshold low V 1.16 1.20 1.28 V – SI, low Sense output low voltage V – 0.1 0.4 V V < 1.20 V; SO, low SI V > 3 V; Q R = 20 kΩ extern Sense input current I -1 0.1 1 µA – SI 1) Drop voltage = V - V (measured when the output voltage has dropped 100mV from the nominal value obtained at I Q 13.5V input.) Data Sheet 8 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Functional description 4 Functional description The control amplifier compares a reference voltage, made highly accurate by resistance balancing, with a voltage proportional to the output voltage and drives the base of the series PNP transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. The reset output RO is in high-state if the voltage on the delay capacitor C is greater or equal V . The delay D UD capacitor C is charged with the current I for output voltages greater than the reset threshold V . If the output D D RT voltage gets lower than V (‘reset condition’) a fast discharge of the delay capacitor C sets in and as soon as RT D V gets lower than V the reset output RO is set to low-level. D LD The time gap for the delay capacitor discharge is the reset reaction time t . RR The reset threshold V can be decreased via an external voltage divider connected to the pin RADJ. In this case RT the reset condition is reached if V < V and V <V . Dimensioning the voltage divider (see Figure4) Q RT RADJ RAQDJ,TH according to: (4.1) V × (R +R ) V = -----R---A----D---(--J--,--T---H----)--------------A----D---J--1-------------A----D---J--2---- THRES R ADJ2 the reset threshold can be decreased down to 3.5 V. If the reset-adjust-option is not needed the RADJ-pin should be connected to GND causing the reset threshold to go to its default value (typ. 4.65 V). A built in comparator compares the signal of the pin SI, normally fed by a voltage divider from the input voltage, with the reference and gives an early warning on the pin SO. It is also possible to superwise another voltage e.g. of a second regulator, or to build a watchdog circuit with few external components. Data Sheet 9 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Application information 5 Application information The input capacitor C is necessary for compensating line influences. Using a resistor of approx. 1Ω in series I with C, the oscillating circuit consisting of input inductivity and input capacitance can be damped. The output I capacitor C is necessary for the stability of the regulating circuit. Stability is guaranteed at values ≥ 10µF and Q an ESR ≤ 10Ω within the operating temperature range. Both reset output and sense output are open collector outputs and have to be connected to 5 V output via external pull-up resistors ≥ 10kΩ. For small tolerances of the reset delay the spread of the capacitance of the delay capacitor and its temperature coefficient should be noted. Ι Ι Ι Q Ι Q 1000μ F CΙ TLE 4279 RADJ1 CQ 470 nF 22μ F Ι Ι SΙ RADJ SI RADJ V D GND RO SO V Ι Q Ι Ι V SΙ D GND C V V V V D D RO SO RADJ RADJ2 100 nF AES01956 Figure4 Measuring circuit V I t V <t Q RR V RT t dV I V = D D dt C D V UD V LD t t t RR d V RO V RO, SAT t Power-on-Reset Thermal Voltage Dip Undervoltage Secondary Overload Shutdown at Input Spike at Output AED01542 Figure5 Reset timing diagram Data Sheet 10 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Application information Sense Input Voltage V SI, High V SI, Low t Sense Output High Low t AED03049 Figure6 Sense input timing diagram Data Sheet 11 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Application information 5.1 Typical performance characteristics Charge current I versus Drop voltage V versus D dr temperature T output current I J Q 16 AED01803 500 AED01805 ΙD μ A Vdr mV 14 V =13.5 V Ι V =1.0 V 400 C 12 10 300 8 T =125 C j 200 6 T = 25 C j 4 100 2 0 0 -40 0 40 80 120 C 160 0 30 60 90 120 mA 180 T Ι j Q Switching voltage V and V versus Reset adjust switching threshold V versus UD LD RADJ,TH temperature T temperature T j j 3.2 AED01804 1.7 AED01806 V V V V D RADJ, TH 2.8 1.6 V =13.5 V Ι 2.4 1.5 2.0 VUD 1.4 1.6 1.3 1.2 1.2 0.8 1.1 V LD 0.4 1.0 0 0.9 -40 0 40 80 120 C 160 -40 0 40 80 120 C 160 T T j j Data Sheet 12 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Application information Current consumption I versus Sense threshold V versus Q SI input voltage V temperature T I j 30 AED01807 1.6 AED01809 Ι V q mA SI V V =13.5 V Ι 25 1.5 20 1.4 R = 33 Ω Sense Output High L 15 1.3 Sense Output Low 10 1.2 R = 50 Ω L 5 R =100 Ω 1.1 L R = 200 Ω L 0 1.0 0 10 20 30 40 V 50 -40 0 40 80 120 C 160 V T Ι j Output voltage V versus Output voltage V versus Q Q input voltage V temperature T I j 12 AED01808 5.2 AED01671 V V Q V Q V 10 5.1 V =13.5 V Ι 8 5.0 6 4.9 R = 50 Ω L 4 4.8 2 4.7 0 4.6 0 2 4 6 8 V 10 -40 0 40 80 120 C 160 V T Ι j Data Sheet 13 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Application information Output current I versus Current consumption I versus Q q input voltage V output current I I Q 350 AED01810 1.6 AED01812 Ι Ι mA Q mA q 1.4 300 V =13.5 V Ι T = 25 C j 1.2 250 1.0 T = 25 C j 200 0.8 150 T =125 C j 0.6 100 0.4 50 0.2 0 0 0 10 20 30 40 V 50 0 10 20 30 40 mA 50 V Ι Ι Q Current consumption I versus q output current I Q 12 AED01811 Ι q mA 10 V =13.5 V Ι T = 25 C j 8 6 4 2 0 0 20 40 60 80 mA 120 Ι Q Data Sheet 14 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Package information 6 Package information 0.35 x 45° 0.175 ±0.07 (1.45) 1.75 MAX. 4-0.20.191+0.0)6 MAX.8° 1.27 B 0.1 0.64±0.25 0.41+0.1 -0.06 0.2M AB 8x 6±0.2 8 5 Index Marking 1 4 A 5 1) -0.2 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 GPS01229 Figure7 PG-DSO-8 (Plastic Dual Small Outline)1) Figure8 PG-DSO-14 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). Further information on packages https://www.infineon.com/packages 1) Dimensions in mm Data Sheet 15 Rev. 2.5 2018-11-19

OPTIREG™LinearTLE4279 5V low drop fixed voltage regulator Revision history 7 Revision history Revision Date Changes 2.5 2018-11-19 Updated package drawing “PG-DSO-14” Editorial changes 2.4 2007-03-20 Initial version of RoHS-compliant derivate of TLE4279 Page 1: AEC certified statement added Page1 and 15: RoHS compliance statement and Green product feature added Package changed to RoHS compliant version Legal disclaimer updated Data Sheet 16 Rev. 2.5 2018-11-19

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