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 V_OUT = 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, V_OUT,rt, of 4.65 V (typ). By the use of an external delay capacitor, one can program the reset delay time.

The input capacitor, C_IN, compensates for line fluctuation. Using a resistor of approximately 1 Ω in series with C_IN dampens the oscillation of input inductance and input capacitance. The output capacitor, C_OUT, stabilizes the regulation circuit. The specification for stability is at C_OUT ≥ 22 µF and ESR ≤ 5 Ω, within the operating temperature range. Stability for electrolytic capacitors specifically is at C_OUT ≥ 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, and Reverse Polarity.

• Qualified for Automotive Applications
• Output Voltage 5 V ± 2%
• Very Low Current Consumption
• Power-On and Undervoltage Reset
• Reset Low-Level Output Voltage < 1 V
• Very Low Dropout Voltage
• Short-Circuit Proof
• Reverse-Polarity Proof

• Output options
• Fixed Output
• Iout (Max) (A)
• 0.45
• Vin (Max) (V)
• 42
• Vin (Min) (V)
• 5.5
• Vout (Max) (V)
• 5
• Vout (Min) (V)
• 5
• Fixed output options (V)
• 5
• Iq (Typ) (mA)
• 5
• Thermal resistance θJA (°C/W)
• 33
• Rating
• Automotive
• Load capacitance (Min) (μF)
• 10
• Regulated outputs (#)
• 1
• Features
• Power good, Reverse voltage protection
• Accuracy (%)
• 2
• PSRR @ 100 KHz (dB)
• 27
• Dropout voltage (Vdo) (Typ) (mV)
• 250
• Operating temperature range (C)
• -40 to 125

TLE4275-Q1的完整型号有：TLE4275QKTTRQ1、TLE4275QKVURQ1、TLE4275QPWPRQ1，以下是这些产品的关键参数及官网采购报价：

TLE4275QKTTRQ1，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网TLE4275QKTTRQ1的批量USD价格：0.969（1000+）

TLE4275QKVURQ1，工作温度：-40 to 125，封装：TO-252 (KVU)-5，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SN，TI官网TLE4275QKVURQ1的批量USD价格：1.012（1000+）

TLE4275QPWPRQ1，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TLE4275QPWPRQ1的批量USD价格：0.824（1000+）

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借助采用多种封装选项的 MLTLDO2EVM-037 低压降 (LDO) 评估模块 (EVM)，设计工程师能评估可能用于其自身电路应用的线性稳压器采用多种常见封装时的运行情况和性能。这种 EVM 配置包含一个 DDA、3 引脚和 5 引脚 KVU 以及 DCY 封装，便于工程师焊接和评估部件。