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500mA Variable/Fixed Output LDO Regulators_BD33KA5WFP

ROHM的二次LDO稳压器系列能够使正在追求小型化、节能化的各种装置最大限度地发挥其性能,构成低噪声而又稳定工作的电源电路。用于局部电源的500mA带停机开关的固定输出二次LDO稳压器系列,是输出电压精度为±1%、最大可提供500mA输出电流的低饱和型稳压器。它内置有停机时使电路电流为0μA的ON/OFF开关,系列中包括多种输出电压、不同封装形式等形成了类型丰富的产品阵容。可广泛应用于TV、汽车音响以及HDD、PC、DVD等等。本系列产品内置有防止输出短路等原因损毁IC的过流保护电路、防止过负荷状态等产生的热破坏IC的过热保护电路。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD33KA5WFP-E2 供应中 TO252-5 2000 2000 Taping Yes
 
特性:
Grade Standard
Breakdown Voltage(Max.)[V] 7.0
ch 1
Vin(Min.)[V] 2.3
Vin(Max.)[V] 5.5
Vout (Typ.) [V] 3.3
Vout Precision ±1.0
Iout(Max.)[A] 0.5
Circuit Current[mA] 0.35
Shutdown Function Yes
Thermal Shut-down Yes
Over Current Protection Yes
Over Voltage Protection No
Discharge Function No
Soft Start No
I/O Voltage Difference (Typ.)[V] 0.12(Io=0.2A)
Ripple Rejection [dB] 50.0
Load Regulation[mV] 25(0 to 500mA)
Input Capacitor[µF] 1.0
Output Capacitor[µF] 1.0
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
特点:
  • ・最大输出电流500mA
    ・输出电压精度±1%
    ・PMOS输出低饱和电压型 0.12V Typ.(Io=200mA)
 
 
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PART NUMBER Product Name Package Datasheet Distribution Inventory
BD25KA5WFP 500mA Variable/Fixed Output LDO Regulators TO252-5   购买
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BD25KA5FP 500mA Variable/Fixed Output LDO Regulators TO252-3   购买
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技术信息
BDxxKA5 Series Application Information

The information in provides hints for IC mounting.

Table of resistance for output voltage setting on linear regulator Ics

This application notes provide tables for each series so that it is easy to set the resistance value for the output voltage setting from various internal reference voltages VREF.

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.

BDxxKA5 Series PCB Layout

The basic terminal configuration of a linear regulator IC consists of four parts: input, output, GND, and feedback…

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.

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...

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...

Thermal Calculation for Linear Regulator

The loss in linear regulators increases as the difference between the input and output voltages increases. Since most of the loss is converted to heat, a very large amount of heat may be generated in some conditions...

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.

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.

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.

Connecting LDOs in Parallel

Provides some hints on how to connect LDOs in parallel.