Datasheet > 电源电路 > 开关式稳压器或控制器> LM2576D2T-005G

LM2576D2T-005G

更新时间： 2024-02-01 06:24:42

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器开关式稳压器或控制器电源电路开关式控制器
页数	文件大小	规格书
28页	276K
描述
3.0 A, 15 V, Step−Down Switching Regulator

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LM2576D2T-005G 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	D2PAK
包装说明：	LEAD FREE, PLASTIC, D2PAK-5	针数：	5
Reach Compliance Code：	unknown	风险等级：	5.06
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	40 V
最小输入电压：	8 V	标称输入电压：	12 V
JESD-30 代码：	R-PSSO-G5	JESD-609代码：	e3
长度：	10.02 mm	湿度敏感等级：	NOT SPECIFIED
功能数量：	1	端子数量：	5
最高工作温度：	125 °C	最低工作温度：	-40 °C
最大输出电流：	7.5 A	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260	座面最大高度：	4.826 mm
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	63 kHz	温度等级：	AUTOMOTIVE
端子面层：	MATTE TIN	端子形式：	GULL WING
端子节距：	1.702 mm	端子位置：	SINGLE
处于峰值回流温度下的最长时间：	40	宽度：	9.1945 mm
Base Number Matches：	1

LM2576D2T-005G 数据手册

LM2576

3.0 A, 15 V, Step−Down

Switching Regulator

The LM2576 series of regulators are monolithic integrated circuits

ideally suited for easy and convenient design of a step−down

switching regulator (buck converter). All circuits of this series are

capable of driving a 3.0 A load with excellent line and load regulation.

These devices are available in fixed output voltages of 3.3 V, 5.0 V,

12 V, 15 V, and an adjustable output version.

http://onsemi.com

These regulators were designed to minimize the number of external

components to simplify the power supply design. Standard series of

inductors optimized for use with the LM2576 are offered by several

different inductor manufacturers.

TO−220

TV SUFFIX

CASE 314B

Since the LM2576 converter is a switch−mode power supply, its

efficiency is significantly higher in comparison with popular

three−terminal linear regulators, especially with higher input voltages.

In many cases, the power dissipated is so low that no heatsink is

required or its size could be reduced dramatically.

Heatsink surface connected to Pin 3

A standard series of inductors optimized for use with the LM2576

are available from several different manufacturers. This feature

greatly simplifies the design of switch−mode power supplies.

The LM2576 features include a guaranteed 4% tolerance on output

voltage within specified input voltages and output load conditions, and

10% on the oscillator frequency ( 2% over 0°C to 125°C). External

shutdown is included, featuring 80 mA (typical) standby current. The

output switch includes cycle−by−cycle current limiting, as well as

thermal shutdown for full protection under fault conditions.

TO−220

T SUFFIX

CASE 314D

Pin 1.

2. Output

3. Ground

4. Feedback

5. ON/OFF

Features

• 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions

• Adjustable Version Output Voltage Range, 1.23 to 37 V 4%

Maximum Over Line and Load Conditions

• Guaranteed 3.0 A Output Current

D PAK

D2T SUFFIX

CASE 936A

• Wide Input Voltage Range

• Requires Only 4 External Components

• 52 kHz Fixed Frequency Internal Oscillator

• TTL Shutdown Capability, Low Power Standby Mode

• High Efficiency

• Uses Readily Available Standard Inductors

• Thermal Shutdown and Current Limit Protection

• Moisture Sensitivity Level (MSL) Equals 1

• Pb−Free Packages are Available

Heatsink surface (shown as terminal 6 in

case outline drawing) is connected to Pin 3

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 24 of this data sheet.

DEVICE MARKING INFORMATION

See general marking information in the device marking

section on page 25 of this data sheet.

Applications

• Simple High−Efficiency Step−Down (Buck) Regulator

• Efficient Pre−Regulator for Linear Regulators

• On−Card Switching Regulators

• Positive to Negative Converter (Buck−Boost)

• Negative Step−Up Converters

• Power Supply for Battery Chargers

Semiconductor Components Industries, LLC, 2006

Publication Order Number:

January, 2006 − Rev. 8

LM2576/D

12 3 4 5 6 7...28

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