ZHCSNR6G June 1999 – March 2023 LM2576 , LM2576HV
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 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: 15 V
- 6.9 Electrical Characteristics: Adjustable Output Voltage
- 6.10 Electrical Characteristics: All Output Voltage Versions
- 6.11 Typical Characteristics
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Mechanical, Packaging, and Orderable Information
封裝選項
請參考 PDF 數據表獲取器件具體的封裝圖。
機械數據 (封裝 | 引腳)
- NDH|5
- NEB|5
- KTT|5
- KC|5
散熱焊盤機械數據 (封裝 | 引腳)
- KTT|5
訂購信息
7.3.1 Undervoltage Lockout
In some applications it is desirable to keep the regulator off until the input voltage reaches a certain threshold. Figure 7-1 shows an undervoltage lockout circuit that accomplishes this task, while Figure 7-2 shows the same circuit applied to a buck-boost configuration. These circuits keep the regulator off until the input voltage reaches a predetermined level.
Equation 1. VTH ≈ VZ1 + 2VBE(Q1)
Complete circuit not shown.
Figure 7-1 Undervoltage Lockout for Buck Circuit