ZHCS517E
April 2000 – June 2019
LM2587
PRODUCTION DATA.
1
特性
2
典型 应用
3
说明
Device Images
反激式稳压器
4
修订历史记录
5
Pin Configurations
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESDRatings
6.3
Recommended Operating Ratings
6.4
Thermal Information
6.5
Electrical Characteristics: 3.3 V
6.6
Electrical Characteristics: 5 V
6.7
Electrical Characteristics: 12 V
6.8
Electrical Characteristics: Adjustable
6.9
Electrical Characteristics: All Output Voltage Versions
6.10
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Step-Up (Boost) Regulator Operation
8
Application And Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Typical Boost Regulator Applications
8.2.2
Typical Flyback Regulator Applications
8.2.2.1
Transformer Selection (T)
8.2.2.2
Transformer Footprints
8.2.2.2.0.1
T4
8.2.3
Design Requirements
8.2.4
Detailed Design Procedure
8.2.4.1
Custom Design With Webench® Tools
8.2.4.2
Programming Output Voltage (Selecting R1 And R2)
8.2.4.3
Short Circuit Condition
8.2.4.4
Flyback Regulator Input Capacitors
8.2.4.5
Switch Voltage Limits
8.2.4.6
Output Voltage Limitations
8.2.4.7
Noisy Input Line Condition)
8.2.4.8
Stability
8.3
Additional Application Examples
8.3.1
Test Circuits
9
Layout
9.1
Layout Guidelines
9.2
Layout Example
9.3
Heat Sink/Thermal Considerations
9.3.1
European Magnetic Vendor Contacts
9.3.2
Coilcraft
9.3.3
Pulse Engineering
10
器件和文档支持
10.1
器件支持
10.1.1
第三方产品免责声明
10.1.2
开发支持
10.1.2.1
使用 Webench® 工具创建定制设计方案
10.2
接收文档更新通知
10.3
社区资源
10.4
商标
10.5
静电放电警告
10.6
Glossary
11
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
NDH|5
MMSF011
KTT|5
MPSF007E
散热焊盘机械数据 (封装 | 引脚)
KTT|5
PPTD277
订购信息
zhcs517e_oa
zhcs517e_pm
8.3.1
Test Circuits
C
IN1
—100 μF, 25V Aluminum Electrolytic C
IN2
—0.1 μF CeramicT—22 μH, 1:1 Schott #67141450D—1N5820C
OUT
—680 μF, 16V Aluminum Electrolytic C
C
—0.47 μF Ceramic R
C
—2k
Figure 61.
LM2587-3.3 and LM2587-5.0 Test Circuit
C
IN1
—100 μF, 25V Aluminum Electrolytic C
IN2
—0.1 μF CeramicL—15 μH, Renco #RL-5472-5D—1N5820C
OUT
—680 μF, 16V Aluminum Electrolytic C
C
—0.47 μF Ceramic R
C
—2kFor 12V Devices: R
1
= Short (0Ω) and R
2
= Open For ADJ Devices: R
1
= 48.75k, ±0.1% and R2 = 5.62k, ±1%
Figure 62.
LM2587-12 and LM2587-ADJ Test Circuit