TLE4275 Series
Automotive, 450mA off-battery (42V) low-dropout voltage regulator with reset, delay
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Automotive, 450mA off-battery (42V) low-dropout voltage regulator with reset, delay
| Part | Number of Regulators | Current - Supply (Max) [Max] | Package / Case | Current - Output | Qualification | Voltage Dropout (Max) | Output Configuration | Current - Quiescent (Iq) | Voltage - Input (Max) [Max] | PSRR | Supplier Device Package | Mounting Type | Voltage - Output (Min/Fixed) | Grade | Output Type | Protection Features | Package / Case [custom] | Package / Case [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TLE4275QKTTRQ1 | 1 | 22 mA | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | 450 mA | AEC-Q100 | 0.5 V | Positive | 200 µA | 42 V | 60 dB | TO-263 (DDPAK-5) | Surface Mount | 5 V | Automotive | 27.03 °C/W | Over Current, Over Temperature, Reverse Polarity | ||
Texas Instruments TLE4275QPWPRQ1 | 1 | 22 mA | 20-PowerTSSOP | 450 mA | AEC-Q100 | 0.5 V | Positive | 200 µA | 42 V | 60 dB | 20-HTSSOP | Surface Mount | 5 V | Automotive | 27.03 °C/W | Over Current, Over Temperature, Reverse Polarity | 0.173 in | 4.4 mm |
Texas Instruments TLE4275QKVURQ1 | 1 | 22 mA | DPAK (4 Leads + Tab), TO-252-5, TO-252AD | 450 mA | AEC-Q100 | 0.5 V | Positive | 200 µA | 42 V | 60 dB | TO-252-5 | Surface Mount | 5 V | Automotive | 27.03 °C/W | Over Current, Over Temperature, Reverse Polarity |
Key Features
• Qualified for Automotive ApplicationsOutput Voltage 5 V ± 2%Very Low Current ConsumptionPower-On and Undervoltage ResetReset Low-Level Output Voltage < 1 VVery Low Dropout VoltageShort-Circuit ProofReverse-Polarity ProofQualified for Automotive ApplicationsOutput Voltage 5 V ± 2%Very Low Current ConsumptionPower-On and Undervoltage ResetReset Low-Level Output Voltage < 1 VVery Low Dropout VoltageShort-Circuit ProofReverse-Polarity Proof
Description
AI
The TLE4275 is a monolithic integrated low-dropout voltage regulator offered in a 5-pin TO package. The device regulates an input voltage up to 45 V to VOUT= 5 V (typ). The device can drive loads up to 450 mA and is short-circuit proof. At overtemperature, the incorporated temperature protection turns off the TLE4275. The device generates a reset signal for an output voltage, VOUT,rt, of 4.65 V (typ). By the use of an external delay capacitor, one can program the reset delay time.
The input capacitor, CIN, compensates for line fluctuation. Using a resistor of approximately 1 Ω in series with CINdampens the oscillation of input inductance and input capacitance. The output capacitor, COUT, stabilizes the regulation circuit. The specification for stability is at COUT≥ 22 µF and ESR ≤ 5 Ω, within the operating temperature range. Stability for electrolytic capacitors specifically is at COUT≥ 68 µF within the operating temperature range. See the application report on low-temperature stability, SLVA501, for further details.
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 through a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The device also incorporates a number of internal circuits for protection against:Overload,Overtemperature, andReverse Polarity.
The TLE4275 is a monolithic integrated low-dropout voltage regulator offered in a 5-pin TO package. The device regulates an input voltage up to 45 V to VOUT= 5 V (typ). The device can drive loads up to 450 mA and is short-circuit proof. At overtemperature, the incorporated temperature protection turns off the TLE4275. The device generates a reset signal for an output voltage, VOUT,rt, of 4.65 V (typ). By the use of an external delay capacitor, one can program the reset delay time.
The input capacitor, CIN, compensates for line fluctuation. Using a resistor of approximately 1 Ω in series with CINdampens the oscillation of input inductance and input capacitance. The output capacitor, COUT, stabilizes the regulation circuit. The specification for stability is at COUT≥ 22 µF and ESR ≤ 5 Ω, within the operating temperature range. Stability for electrolytic capacitors specifically is at COUT≥ 68 µF within the operating temperature range. See the application report on low-temperature stability, SLVA501, for further details.
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 through a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The device also incorporates a number of internal circuits for protection against:Overload,Overtemperature, andReverse Polarity.