MC33166

更新时间： 2024-09-28 22:54:59

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器开关电源开关
页数	文件大小	规格书
20页	242K
描述
POWER SWITCHING REGULATORS

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中文翻译

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MC33166 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

= 3 or 4

= Assembly Location

WL = Wafer Lot

= Year

WW = Work Week

MARKING

DIAGRAMS

TO–220

TH SUFFIX

CASE 314A

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 µA.

3x166T

AWLYWW

• 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

• Undervoltage Lockout with Hysteresis

• Internal Thermal Shutdown

TO–220

TV SUFFIX

CASE 314B

3x166T

AWLYWW

• Operation from 7.5 V to 40 V

• Standby Mode Reduces Power Supply Current to 36 µA

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

• Also Available in Surface Mount D PAK Package

Heatsink surface connected to Pin 3

• Moisture Sensitivity Level (MSL) Equals 1

TO–220

T SUFFIX

CASE 314D

3x166T

AWLYWW

LIMIT

Oscillator

Pin 1. Voltage Feedback Input

2. Switch Output

PWM

3. Ground

4. Input Voltage/V

UVLO

5. Compensation/Standby

Thermal

Reference

D PAK

D2T SUFFIX

CASE 936A

3x166T

AWLYWW

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 17 of this data sheet.

Semiconductor Components Industries, LLC, 2002

Publication Order Number:

January, 2002 – Rev. 6

MC34166/D

12 3 4 5 6 7...20

中文翻译

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与MC33166相关器件

型号	品牌	获取价格	描述	数据表
MC331667	ONSEMI	获取价格	AC-DC Offline Switching Controllers/Regulators
MC33166D2T	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC33166D2T	MOTOROLA	获取价格	POWER SWITCHING REGULATORS
MC33166D2TG	ONSEMI	获取价格	3.0 A, Step−Up/Down/Inverting Switching Regulators
MC33166D2TR4	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC33166D2TR4G	ONSEMI	获取价格	3.0 A, Step−Up/Down/Inverting Switching Regulators
MC33166T	ONSEMI	获取价格	POWER SWITCHING REGULATORS
MC33166T	MOTOROLA	获取价格	POWER SWITCHING REGULATORS
MC33166TG	ONSEMI	获取价格	3.0 A, Step−Up/Down/Inverting Switching Regulators
MC33166TH	ONSEMI	获取价格	POWER SWITCHING REGULATORS

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