Datasheet > MDC5001

MDC5001

更新时间： 2024-12-01 03:49:55

品牌	Logo	应用领域
ETL		稳压器
页数	文件大小	规格书
10页	654K
描述
Low Voltage Bias Stabilizer with Enable

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MDC5001 数据手册

Low Voltage Bias Stabilizer with Enable

MDC5001T1

SILICON

SMALLBLOCK^TM

• Maintains Stable Bias Current in N–Type Discrete Bipolar Junction and

INTEGRATED CIRCUIT

Field Effect Transistors

• Provides Stable Bias Using a Single Component Without Use of Emitter

Ballast and Bypass Components

• Operates Over a Wide Range of Supply Voltages Down to 1.8 Vdc

• Reduces Bias Current Variation Due to Temperature and Unit–to–Unit

Parametric Changes

• Consumes

<0.5 mW at V _CC= 2.75 V

SOT 363

CASE 419B–01 STYLE 19

• Active High Enable is CMOS Compatible

This device provides a reference voltage and acts as a DC feedback ele-

ment around an external discrete, NPN BJT or N–Channel FET. It allows the

external transistor to have its emitter/source directly grounded and still oper-

ate with a stable collector/drain DC current. It is primarily intended to stabilize

the bias of discrete RF stages operating from a low voltage regulated supply,

but can also be used to stabilize the bias current of any linear stage in order to

eliminate emitter/source bypassing and achieve tighter bias regulation over

temperature and unit variations. The “ENABLE” polarity nulls internal current,

Enable current, and RF transistor current in “STANDBY.” This device is in-

tended to replace a circuit of three to six discrete components.

The combination of low supply voltage, low quiescent current drain, and

small package make the MDC5001T1 ideal for portable communications ap-

plications such as:

INTERNAL CIRCUIT DIAGRAM

• Cellular Telephones

• Pagers

• PCN/PCS Portables

• GPS Receivers

• PCMCIA RF Modems

• Cordless Phones

• Broadband and Multiband Transceivers and Other Portable Wireless

Products.

MDC5001T–1/10

12 3 4 5 6 7...10

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