Datasheet > BD3508MUV_09

BD3508MUV_09

更新时间： 2024-11-25 06:41:51

品牌	Logo	应用领域
罗姆 - ROHM		稳压器 PC
页数	文件大小	规格书
21页	679K
描述
Ultra Low Dropout Linear Regulators for PC Chipsets

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BD3508MUV_09 数据手册

High-performance Regulator IC Series for PCs

Ultra Low Dropout

Linear Regulators for PC Chipsets

No.09030EAT22

BD3508MUV, BD3509MUV

● Description

The BD3508MUV / BD3509MUV ultra low-dropout linear chipset regulator operates from a very low input supply, and offers

ideal performance in low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power

transistor to minimize the input-to-output voltage differential to the ON resistance (RON MAX=100mΩ/50mΩ) level. By

lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=3.0A/4.0A) with reduced

conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus,

the BD3508MUV / BD3509MUV are designed to enable significant package profile downsizing and cost reduction. An

external resistor allows the entire range of output voltage configurations between 0.65 and 2.7V, while the NRCS (soft start)

function enables a controlled output voltage ramp-up, which can be programmed to whatever power supply sequence is

required.

● Features

1) Internal high-precision reference voltage circuit (0.65V±1%)

2) Built-in VCC under voltage lock out circuit (VCC=3.80V)

3) NRCS (soft start) function reduces the magnitude of in-rush current

4) Internal Nch MOSFET driver offers low ON resistance (65mΩ/28mΩ typ)

5) Built-in current limit circuit (3.0A/4.0A min)

6) Built-in thermal shutdown (TSD) circuit

7) Variable output (0.65～2.7V)

8) Incorporates high-power VQFN020V4040 package: 4.0×4.0×1.0(mm)

9) Tracking function

● Applications

Notebook computers, Desktop computers, LCD-TV, DVD, Digital appliances

● Model Lineup

Maximum output current

Package

VCC=5V

BD3508MUV

BD3509MUV

VQFN020V4040

www.rohm.com

2009.05 - Rev.A

1/20

12 3 4 5 6 7...21

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