Datasheet > MC34166_05

MC34166_05

更新时间： 2024-11-25 04:40:51

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器开关
页数	文件大小	规格书
18页	265K
描述
3.0 A, Step−Up/Down/Inverting Switching Regulators

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MC34166_05 数据手册

MC34166, MC33166

3.0 A, Step−Up/Down/

Inverting Switching

Regulators

The MC34166, MC33166 series are high performance fixed

frequency power switching regulators that contain the primary

functions required for dc−to−dc converters. This series was specifically

designed to be incorporated in step−down and voltage−inverting

configurations with a minimum number of external components and

can also be used cost effectively in step−up applications.

These devices consist of an internal temperature compensated

reference, fixed frequency oscillator with on−chip timing components,

latching pulse width modulator for single pulse metering, high gain

error amplifier, and a high current output switch.

http://onsemi.com

MARKING

DIAGRAMS

= 3 or 4

= Assembly Location

WL = Wafer Lot

= Year

WW = Work Week

= Pb−Free Package

Protective features consist of cycle−by−cycle current limiting,

undervoltage lockout, and thermal shutdown. Also included is a low

power standby mode that reduces power supply current to 36 mA.

TO−220

TH SUFFIX

CASE 314A

3x166T

AWLYWWG

Features

• Output Switch Current in Excess of 3.0 A

• Fixed Frequency Oscillator (72 kHz) with On−Chip Timing

• Provides 5.05 V Output without External Resistor Divider

• Precision 2% Reference

• 0% to 95% Output Duty Cycle

• Cycle−by−Cycle Current Limiting

3x166T

AWLYWWG

• Undervoltage Lockout with Hysteresis

• Internal Thermal Shutdown

TO−220

TV SUFFIX

CASE 314B

• Operation from 7.5 V to 40 V

• Standby Mode Reduces Power Supply Current to 36 mA

• Economical 5−Lead TO−220 Package with Two Optional Leadforms

Heatsink surface connected to Pin 3

• Also Available in Surface Mount D PAK Package

• Moisture Sensitivity Level (MSL) Equals 1

• Pb−Free Packages are Available

TO−220

T SUFFIX

CASE 314D

LIMIT

3x166T

AWLYWWG

Oscillator

Pin 1. Voltage Feedback Input

2. Switch Output

PWM

3. Ground

4. Input Voltage/V

UVLO

Thermal

5. Compensation/Standby

Reference

D PAK

3x166T

AWLYWWG

D2T SUFFIX

CASE 936A

5.05 V/

3.0 A

Heatsink surface (shown as

terminal 6 in case outline

drawing) is connected to Pin 3

This device contains 143 active transistors.

Figure 1. Simplified Block Diagram

(Step Down Application)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

Semiconductor Components Industries, LLC, 2005

Publication Order Number:

October, 2005 − Rev. 7

MC34166/D

12 3 4 5 6 7...18

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与MC34166_05相关器件

型号	品牌	获取价格	描述	数据表
MC34166D2T	MOTOROLA	获取价格	POWER SWITCHING REGULATORS
MC34166D2T	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC34166D2TG	ONSEMI	获取价格	3.0 A, Step−Up/Down/Inverting Switching Regulators
MC34166D2TR4	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC34166D2TR4G	ONSEMI	获取价格	3.0 A, Step−Up/Down/Inverting Switching Regulators
MC34166T	MOTOROLA	获取价格	POWER SWITCHING REGULATORS
MC34166T	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC34166TG	ONSEMI	获取价格	3.0 A, Step−Up/Down/Inverting Switching Regulators
MC34166TH	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC34166TH	MOTOROLA	获取价格	POWER SWITCHING REGULATORS

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