BD42530EFJ-C - 技術資料
BD42530EFJ-C是45V耐壓、偏置電壓 ±10mV、輸出電流250mA、消耗電流40µA的低待機電流電壓跟蹤器。本IC最適合用來降低蓄電池直連系統的消耗電流。輸出相位補償電容器可使用陶瓷電容器。本IC內建防止因輸出短路等發生IC破壞的過電流保護、以及防止因過負擔狀態等使IC發生熱破壞的過熱保護電路。
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Application Note
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Basics of Linear Regulators
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A linear regulator, also referred to as a "three-terminal regulator" or "dropper," is a power supply long known to many designers owning to its simple circuitry and ease of use...
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Linear Regulator Specifications
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Very important information such as maximum ratings, operating conditions and characteristic graphs are described in the table.
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Reverse Voltage Protection
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A linear regulator integrated circuit (IC) is a DC-to-DC buck converter system that reduces a DC supply from higher voltage level to a lower voltage level...
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Power Source ON/OFF Characteristics for Linear Regulator
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When a linear regulator IC is turned ON, the electric charge is stored in the output capacitor and the output voltage increases up to the specified value.
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Thermal Calculation for Linear Regulator
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This application note explains how to estimate the junction temperature of the IC chip, and provides calculation examples for the ROHM’s standard circuit boards.
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Simple Test Method for Estimating the Stability of Linear Regulators
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Low drop-out (LDO) regulators developed back in the age when large-capacitance multi-layer ceramic capacitors (hereinafter, MLCCs) were uncommon cause a phase delay, leading to oscillation when connected to a low-ESR capacitor like an MLCC...
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Connecting LDOs in Parallel
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Provides some hints on how to connect LDOs in parallel.
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Problem Situations: Power Supply Does Not Start
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Although linear regulators can be used to easily configure power supplies, the linear regulators may cause startup problems depending on the type of loads. This application note introduces cases where the power supplies do not start correctly in the linear regulators.
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Power Supply Sequence Circuit with General Purpose Power Supply IC
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This application note proposes a circuit that accomplishes the power supply sequence without using any dedicated power supply sequence IC, by using general purpose power supply ICs.
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Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
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This application note describes the method and result of the ripple and switching noise suppression using a linear regulator and a low pass filter.
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Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
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This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.
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BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
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This application note proposes a circuit using an output ceramic capacitor that allows a stable phase compensation.
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Thermal Resistance
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The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.
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Impedance Characteristics of Bypass Capacitor
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This application note focuses on the impedance characteristics of capacitors, and explains cautions for selecting bypass capacitors.
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Part Explanation
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For ICs
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