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線性與低壓差 (LDO) 穩壓器

TLE4275-Q1

現行

具有延遲重設功能的車用 450mA、無電池 (42V)、低壓差電壓穩壓器

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產品規格表

TLE4275-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Vin (max) (V) 42 Vin (min) (V) 5.5 Iout (max) (A) 0.45 Output options Fixed Output Vout (max) (V) 5 Vout (min) (V) 5 Fixed output options (V) 5 PSRR at 100 KHz (dB) 27 Iq (typ) (mA) 5 Features Power good Thermal resistance θJA (°C/W) 33 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 42 Vin (min) (V) 5.5 Iout (max) (A) 0.45 Output options Fixed Output Vout (max) (V) 5 Vout (min) (V) 5 Fixed output options (V) 5 PSRR at 100 KHz (dB) 27 Iq (typ) (mA) 5 Features Power good Thermal resistance θJA (°C/W) 33 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
TO-263 (KTT) 5 154.8384 mm² (10.16 mm × 15.24 mm) TO-252 (KVU) 5 66.726 mm² (6.6 mm × 10.11 mm) HTSSOP (PWP) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range:
    • Legacy chip: 5.5V to 42V (45V absolute max)
    • New chip: 3.0V to 40V (42V absolute max)
  • Maximum output current:
    • Legacy chip: 450mA
    • New chip: 500mA
  • Output voltage accuracy: ±2.0% (across line, load and temperature)
  • Low dropout voltage: 500mV (max) at 300mA
  • Low quiescent current:
    • Legacy chip: 100µA (typ) at IOUT = 1mA
    • New chip: 28µA (typ) at IOUT = 1mA
  • Excellent line transient response (new chip):
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Power-good (reset) with programmable delay period
  • Stable with a 2.2µF or larger capacitor (new chip)
  • Reverse-polarity protection (legacy chip)
  • Overcurrent and overtemperature protection
  • Packages:
    • 5-pin TO-252 (KVU)
    • 5-pin DDPAK/TO-263 (KTT)
    • 20-pin HTSSOP (PWP) (legacy chip)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range:
    • Legacy chip: 5.5V to 42V (45V absolute max)
    • New chip: 3.0V to 40V (42V absolute max)
  • Maximum output current:
    • Legacy chip: 450mA
    • New chip: 500mA
  • Output voltage accuracy: ±2.0% (across line, load and temperature)
  • Low dropout voltage: 500mV (max) at 300mA
  • Low quiescent current:
    • Legacy chip: 100µA (typ) at IOUT = 1mA
    • New chip: 28µA (typ) at IOUT = 1mA
  • Excellent line transient response (new chip):
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Power-good (reset) with programmable delay period
  • Stable with a 2.2µF or larger capacitor (new chip)
  • Reverse-polarity protection (legacy chip)
  • Overcurrent and overtemperature protection
  • Packages:
    • 5-pin TO-252 (KVU)
    • 5-pin DDPAK/TO-263 (KTT)
    • 20-pin HTSSOP (PWP) (legacy chip)

The TLE4275-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. For the new chip, the device has an input voltage range extending to 40V that drives loads up to 500mA. This range allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 28µA quiescent current at IOUT = 1mA (new chip), the device is designed for powering always-on components. Microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems are examples of such components.

The new chip version of the device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the new chip version has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±2.0% over line, load, and temperature (new chip).

The power-good (reset) delay is adjusted by an external capacitor on the delay pin, allowing the delay time to be configured to fit application-specific systems.

The device also incorporates a number of internal circuits for protection against overload and overtemperature. The legacy chip also provides protection against reverse polarity. The legacy chip requires COUT ≥ 22µF with max supported ESR range of ≤ 5Ω and new chip requires COUT ≥ 2.2µF with max supported ESR range of ≤ 2Ω, within the operating temperature range.

The TLE4275-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. For the new chip, the device has an input voltage range extending to 40V that drives loads up to 500mA. This range allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 28µA quiescent current at IOUT = 1mA (new chip), the device is designed for powering always-on components. Microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems are examples of such components.

The new chip version of the device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the new chip version has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±2.0% over line, load, and temperature (new chip).

The power-good (reset) delay is adjusted by an external capacitor on the delay pin, allowing the delay time to be configured to fit application-specific systems.

The device also incorporates a number of internal circuits for protection against overload and overtemperature. The legacy chip also provides protection against reverse polarity. The legacy chip requires COUT ≥ 22µF with max supported ESR range of ≤ 5Ω and new chip requires COUT ≥ 2.2µF with max supported ESR range of ≤ 2Ω, within the operating temperature range.

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TLE4275-Q1 Automotive, 500mA, 40V, Low-Dropout Regulator With Power-Good datasheet (Rev. J) PDF | HTML 2025/5/5
應用說明 LDO Noise Demystified (Rev. B) PDF | HTML 2020/8/18
應用說明 LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017/8/9
技術文章 Discrete SBCs: versatile and scalable solutions for any application PDF | HTML 2017/7/27
更多文件說明 Fundamentals of designing with LDOs in auto battery direct connect applications 2017/2/27
應用說明 TLE4275 Low Temperature Stability 2012/1/18

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開發板

MLTLDO2EVM-037 — 適用於 DCY、DDA 和 KVU 封裝的通用 LDO 線性電壓穩壓器評估模組

MLTLDO2EVM-037 多重封裝低壓差 (LDO) 評估模組 (EVM) 可讓設計工程師評估多種常用線性穩壓器封裝的運作情形及性能，以利在自己的電路應用中使用。此 EVM 配置包含 DDA、3 針腳和 5 針腳 KVU，以及用於工程師焊接和評估其零件的 DCY 封裝板上配置。

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TO-263 (KTT) 5 Ultra Librarian
TO-252 (KVU) 5 Ultra Librarian
HTSSOP (PWP) 20 Ultra Librarian
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