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| TLE 4266 5-V Low-Drop Voltage Regulator TLE 4266 Bipolar IC Features q q q q q q q q Output voltage tolerance 2 % Very low current consumption Low-drop voltage Overtemperature protection Reverse polarity proof Wide temperature range Suitable for use in automotive electronics Inhibit P-SOT223-4-2 Type w TLE 4266 G w New type Functional Description Ordering Code Q67006-A9152 Package P-SOT223-4-2 TLE 4266 G is a 5 V low-drop voltage regulator in a P-SOT223-4-2 SMD package. The IC regulates an input voltage Vi in the range of 5.5 V < Vi < 45 V to VQrated = 5 V. The maximum output current is more than 120 mA. The IC can be switched off via the inhibit input, which causes the current consumption to drop below 10 A. The IC is shortcircuitproof and incorporates temperature protection that disables the IC an overtemperature. Dimensioning Information on External Components The input capacitor Ci is necessary for compensating line influences. Using a resistor of approx. 1 in series with Ci, the oscillating of input inductivity and input capacitance can be clamped. The output capacitor CQ is necessary for the stability of the regulating circuit. Stability is guaranteed at values CQ 10 F and an ESR 10 within the operating temperature range. Semiconductor Group 1 11.96 TLE 4266 Pin Configuration (top view) Pin Definitions and Functions Pin 1 2 3 4 Symbol Function Input voltage; block to ground directly at the IC with a ceramic capacitor. Inhibit; low-active input. 5-V output voltage; block to ground with a 10 F capacitor. Ground VI Inh VQ GND Semiconductor Group 2 TLE 4266 Circuit Description The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, 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 incorporates a number of internal circuits for protection against: q q q Overload, Overtemperature, Reverse polarity. Block Diagram Semiconductor Group 3 TLE 4266 Absolute Maximum Ratings Tj = - 40 to 150 C Parameter Symbol Limit Values min. Input Voltage Current Inhibit Voltage Output Voltage Current GND Current Temperature Junction temperature Storage temperature max. Unit Notes Vi Ii - 42 45 V internally limited Ve - 42 45 V VQ IQ -1 16 V internally limited IM 50 mA Tj TS - 50 150 150 C C Operating Range Input voltage Junction temperature Thermal Resistance Junction ambient Junction case Vi Tj 5.5 - 40 45 150 V C RthjA RthjC 100 25 K/W soldered K/W Semiconductor Group 4 TLE 4266 Characteristics VI = 13.5 V; - 40 C Tj 125 C Parameter Symbol Limit Values min. Output voltage Output-current limitation Current consumption Iq = Ii - IQ Current consumption Iq = Ii - IQ Current consumption Iq = Ii - IQ Drop voltage Load regulation Supply-voltage regulation Supply-voltage rejection Inhibit Inhibit on voltage Inhibit off voltage Inhibit current typ. 5 150 0 10 400 10 0.25 15 0.5 40 15 54 30 max. 5.1 V mA A A mA V mV mV dB 5 mA IQ 100 mA 6 V Vi 28 V Unit Test Condition VQ IQ Iq Iq Iq VDr VQ VQ 4.9 120 Ve = 0 V; Tj 100 C IQ = 1 mA IQ = 100 mA IQ = 100 mA1) IQ = 5 to 100 mA Vi = 6 V VI = 6 V to 28 V IQ = 5 mA fr = 100 Hz Vr = 0.5 VSS SVR Ve, on Ve, off Ie 0.8 5 15 3.5 V V 25 A 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). Semiconductor Group 5 TLE 4266 Measuring Circuit Application Circuit Semiconductor Group 6 TLE 4266 Drop Voltage VDr versus Output Current IQ Current Consumption Iq versus Input Voltage Vi Current Consumption Iq versus Output Current IQ Current Consumption Iq versus Output Current IQ Semiconductor Group 7 TLE 4266 Output Voltage VQ versus Temperature Tj Output Current IQ versus Input Voltage Vi Output Voltage VQ versus Input Voltage Vi Output Voltage VQ versus Inhibit Voltage Ve Semiconductor Group 8 TLE 4266 Package Outlines P-SOT223-4-2 (SMD) (Plastic Small Outline Transistor) Weight approx. 0.15 g Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information" SMD = Surface Mounted Device Dimensions in mm Semiconductor Group 9 GPS05560 |
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