Rohm Breadcrumb

Rohm Productdetail

500mA Output LDO Regulator with Voltage Detector - BD42754FP2-C

BD42754FP2-C is automotive suited voltage regulator with 1ch Reset and offers the output current of 500mA while limiting the low quiescent current. This regulator is therefore ideal for applications requiring a direct connection to the battery and a low current consumption. A reset signal is generated for an output voltage VO of Typ 4.62 V. The reset delay time can be programmed by the external capacitor.

Technical Documents

Application Note

Reverse Voltage Protection
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...
Connecting LDOs in Parallel
Provides some hints on how to connect LDOs in parallel.
Basics of Linear Regulators
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...
Linear Regulator Specifications
Very important information such as maximum ratings, operating conditions and characteristic graphs are described in the table.
Simple Test Method for Estimating the Stability of Linear Regulators
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...
BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
This application note proposes a circuit using an output ceramic capacitor that allows a stable phase compensation.
Problem Situations: Power Supply Does Not Start
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.
Power Source ON/OFF Characteristics for Linear Regulator
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.
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.
Thermal Resistance
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.
Part Explanation
For ICs

Additional information Batch Download 


Factory Information