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Technical content

Features

  • Output voltage 5 V or 10 V
  • Output voltage tolerance ≤± 2 %
  • 120 mA current capability
  • Very low current consumption
  • Low-drop voltage
  • Overtemperature protection
  • Reverse polarity proof
  • Wide temperature range
  • Suitable for use in automotive electronics
  • Inhibit Dimensioning Information on External Components The input capacitor CI is necessary for compensating line influences. Using a resistor of approx. 1 Ohm in series with C I, the oscillating of input inductivity and input capacitance can be clamped. The output capacitor C Q is necessary for the stability of the regulating circuit. Stability is guaranteed at values CQ ≥10 uF and an ESR ≤ 10 Ohm within the operating temperature range. ILE4266-2 ILE 4266-2G P-SOT223-4-2 TA = -40° ÷ 125°C

January, 2011, Rev. 01 Pin Definitions and Functions Pin Symbol Function PIN CONFIGURATION

1 VI Input voltage; block to ground

directly at the IC with a ceramic capacitor. 2 Inh Inhibit; low-active input.

3 VQ Output voltage; block to ground

with a capacitor. C ≥10 uF.

4 GND Ground

The device produces a precise reference voltage, that is very accurate due to resistor adjustment. A control amplifier compares the divided output voltage to this reference voltage and drives the base of the PNP series transistor through a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The IC also incorporates a number of protection circuitry for:

  • Overload
  • Overtemperature
  • Reverse polarity

January, 2011, Rev. 01 Maximum & Absolute Maximum Ratings Parameter Symbol Unit Maximum Ratings Absolute Maximum Ratings min. max. min. max. Junction temperature, ТJ oC -40 125 -40 150 Storage temperature, ТS oC - - -50 150 Input voltage, VI V 6 28 -42 45 Input current, II A - internally limited - internally limited Current on common pin ,IGND mA - 15 50 - Output voltage, UQ V 4,9 5,1 -1 16 Output current (pin 3) A - internally limited - internally limited Inhibit voltage, UINH V - - -42 45 Thermal resistance junction case, Rth jc oC /W - 25* - 25* Thermal resistance junction ambient, Rth ja, - on PCB, - without heat dissipater °С/Вт 100* 220* 100* 220* * Thermal resistance junction ambient for IC with heat dissipater is calculated by formula: Rth ja = Rth jc + Rth ca , (1) Rth jc - thermal resistance junction case, oC /W. Application circuit and heat dissipater have to provide TJ ≤ 125 ОС. Maximum power Ptot,Вт, dissipated by IC for TA , is calculated by formula: Ptot = (125 - TA) / Rth ja , (2) 125 – maximum permitable operating junction temperature, ОС. * Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

Electrical Characteristics

VI = 13.5 V; – 40 oC ≤Tj ≤ 125 oC Parameter Symbol Limit Values Unit Test Condition min. typ. max. Output voltage VQ 4.9 5 5.1 V 5 mA ≤IQ ≤ 100 mA

6 V ≤Vi ≤ 28 V

Output-current limitation IQ 120 150 – mA – Current consumption Iq = II – IQ Iq – 0 10 uA VINH = 0 V; Tj ≤ 100 oC – – 400 uA IQ = 1 mA Inhibit ON – 10 15 mA IQ = 100 mA Inhibit ON Drop voltage VDr – 0.25 0.5 V IQ = 100 mA1) Load regulation ∆VQ – – 40 mV IQ = 5 to 100 mA VI = 6 V Supply-voltage regulation ∆VQ – 15 30 mV VI = 6 V to 28 V IQ = 5 mA Supply-voltage rejection SVR – 54 – dB fr = 100 Hz, Vr = 0.5 VSS Inhibit Inhibit on voltage VINH, on 3.5 – – V – Inhibit off voltage VINH, off – – – 0.8 V – Inhibit current IINH 5 15 25 uA Ve = 5 V 1) Drop voltage = VI – VQ (measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V).

January, 2011, Rev. 01 Block Diagram Application Circuit

January, 2011, Rev. 01 Package Dimension P-SOT 223-4-2