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R1232D151A集成電路(IC)的穩(wěn)壓器-DC-DC開(kāi)關(guān)穩(wěn)壓器規(guī)格書(shū)PDF中文資料

R1232D151A
廠商型號(hào)

R1232D151A

參數(shù)屬性

R1232D151A 封裝/外殼為8-SMD,扁平引線;包裝為卷帶(TR);類別為集成電路(IC)的穩(wěn)壓器-DC-DC開(kāi)關(guān)穩(wěn)壓器;產(chǎn)品描述:PWM STEP-DOWN DCDC CONVERTER WIT

功能描述

PWM STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER

封裝外殼

8-SMD,扁平引線

文件大小

845.41 Kbytes

頁(yè)面數(shù)量

24 頁(yè)

生產(chǎn)廠商 RICOH electronics devices division
企業(yè)簡(jiǎn)稱

Ricoh理光

中文名稱

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數(shù)據(jù)手冊(cè)

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更新時(shí)間

2025-1-23 23:00:00

R1232D151A規(guī)格書(shū)詳情

OUTLINE

The R1232D Series are CMOS-based PWM step-down DC/DC converters with synchronous rectifier, low supply current. As an output capacitor, a 10μF or more ceramic capacitor can be used with the R1232D. Each of these ICs consists of an oscillator, a PWM control circuit, a voltage reference unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), a chip enable circuit, a synchronous rectifier, Nch. driver transistor, and so on. A low ripple, high efficiency step-down DC/DC converter can be easily composed of this IC with only a few kinds of external components, or an inductor and capacitors. (As for R1232D001x type, divider resistors are also necessary.) In terms of the output voltage, it is fixed internally in the R1232Dxx1x types. While in the R1232D001x types, the output voltage is adjustable with external divider resistors.

FEATURES

? Two choices of Oscillator Frequency ............................1MHz, 2.25MHz

(Small inductors can be used. 4.7μH for 1MHz/2.2μH for 2.25MHz)

? Built-in Driver ON Resistance .......................................P-channel 0.2? (at VIN=5.0V)

? Built-in Soft-start Function.............................................Typ. 1.0ms (fosc=1MHz type)

? Output Voltage ..............................................................0.9V to 3.3V (xx1x Type)

0.8V to VIN (001x Type)

? High Accuracy Output Voltage ......................................±2.0

? Built-in Current Limit Circuit ..........................................Typ. 1.4A

? Package ........................................................................SON-8 (t=0.9mm)

APPLICATIONS

? Power source for portable equipment such as PDA, DSC, Notebook PC.

? Power source for HDD

產(chǎn)品屬性

  • 產(chǎn)品編號(hào):

    R1232D151A-TR-FE

  • 制造商:

    Nisshinbo Micro Devices Inc.

  • 類別:

    集成電路(IC) > 穩(wěn)壓器 - DC-DC 開(kāi)關(guān)穩(wěn)壓器

  • 系列:

    R1232D

  • 包裝:

    卷帶(TR)

  • 功能:

    降壓

  • 輸出配置:

  • 拓?fù)洌?/span>

    降壓

  • 輸出類型:

    固定

  • 輸出數(shù):

    1

  • 電壓 - 輸入(最小值):

    2.6V

  • 電壓 - 輸入(最大值):

    5.5V

  • 電壓 - 輸出(最小值/固定):

    1.5V

  • 電流 - 輸出:

    1.4A

  • 頻率 - 開(kāi)關(guān):

    1MHz

  • 同步整流器:

  • 工作溫度:

    -40°C ~ 85°C(TA)

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    8-SMD,扁平引線

  • 供應(yīng)商器件封裝:

    8-SON(2.9x2.8)

  • 描述:

    PWM STEP-DOWN DCDC CONVERTER WIT

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