STは、車載アプリケーション向けのリニア･ボルテージ･レギュレータを幅広く取り揃えています。
L49シリーズは、BCD4テクノロジーを採用し、5Vで最大500mAの負荷電流容量を持つLDO電圧レギュレータです。400mV / 500mVのきわめて低いドロップアウト電圧ときわめて少ない暗電流を特徴とした製品です。短絡保護と過熱保護のほか、リセット、ウォッチドッグ、イネーブル･ピンなどの補助機能を搭載しており、車載アプリケーションのマイクロプロセッサ･システムへの電源供給に適しています。
BCD5テクノロジーを採用したL5シリーズは、電源ライン障害とノイズ除去に対する厳しい要件に対応できるように設計され、幅広い温度範囲、および電源ラインと負荷の変動に対して優れた精度を維持します。入力電圧をモニタし、内部ボルテージ･リファレンスと比較する早期警告回路も備えています。
BCD9テクノロジーを採用したL99VR0シリーズは、8本の固定出力電圧と設定可能な出力電圧を備えています。出力電圧は、0.8V～5Vの範囲で設定可能で、最大500mAの負荷電流を供給します。また、定電圧化済みの電圧、またはバッテリに直接接続して動作することができ、イネーブル、リセット、自律型ウォッチドッグ、高度な過熱警告機能、出力の高速放電および短絡電流制御の機能を備えた製品も含まれています。
L99VR0シリーズは、ボディ･モジュール、ジャンクション･ボックス、計器盤、サン･ルーフ、ドア･モジュール、キーレス･エントリ、センサなどの電源用として、あらゆる車載アプリケーションに適しています。
Precision post-regulation with LDK130, LD49100, and LD59100 LDOs
Low dropout regulators such as the LDK130, LD49100, and LD59100 are essential for post-regulation tasks in electronic circuits.
These LDOs are designed to provide a stable and precise output voltage, crucial for sensitive components that require clean power after initial voltage conversion stages. Their compact design and efficiency make the LDK130, LD49100, and LD59100 ideal for automotive applications where maintaining a consistent voltage is critical, ensuring reliable performance and offering features like ultra-low dropout voltage, high accuracy, and excellent load regulation.
How to directly convert from a car battery using LDL40, LDH40, and LDQ40 LDOs
Low dropout regulators (LDOs) are critical components for efficient voltage regulation in automotive applications.
The LDH40, LDL40, and LDQ40 are designed to efficiently manage the voltage regulation process, ensuring that the output voltage remains stable despite variations in the input voltage from the car battery.
These LDOs offer high current capability and low quiescent current, making them ideal where power efficiency and reliability are required.
Their robust design ensures they can handle the harsh conditions found in automotive environments, providing consistent performance and protecting sensitive electronic components from voltage fluctuations.
L99VR03: automotive low dropout linear voltage regulator
The L99VR03 is an automotive-grade LDO with a current capability of up to 300 mA, designed for high efficiency and reliability. It supports input voltages up to 40 V and offers output options of 3.3 V or 5 V with precision maintained at ±2 %. Its low quiescent current makes it ideal for standby microprocessor systems. The L99VR03 includes features like thermal shutdown, short-circuit protection, and an enable input, ensuring robust performance across a wide temperature range from -40 °C to 175 °C.
AEC-Q100 qualified, it is perfect for demanding automotive applications such as automotive MCU power supplies, body control modules, telematics control units, automotive head units, and headlights.
Dual linear regulator for automotive applications
The L99VR02XP is a low dropout dual linear regulator designed for automotive applications, packaged in a standard PowerSSO-36.
This LDO delivers an output current up to 2 x 250 mA and consumes a quiescent current as low as 1 μA per each output when the regulator is disabled. With an input tolerant up to 40 V to withstand load dumps and an operating input voltage range between 2.15 V and 28 V, the L99VR02XP ensures high output voltage accuracy (±2%) over a wide temperature range, line, and load variations.
Due to its robustness, energy efficiency, and versatility in output configurations, the L99VR02XP is ideal for automotive applications like MCU supply, battery-powered instruments, and sensor supply.
Advanced protection and monitoring features ensure reliability and safety under extreme operating conditions.