ZHCSNR6G June 1999 – March 2023 LM2576 , LM2576HV
PRODUCTION DATA
- 1 特性
- 2 應(yīng)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(xiàng)
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- NDH|5
- NEB|5
- KTT|5
- KC|5
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- KTT|5
訂購信息
8.2.2.2.3 Output Capacitor Selection (COUT)
- The value of the output capacitor together with the inductor defines the dominate pole-pair of the switching regulator loop. For stable operation, the capacitor must satisfy Equation :
Equation yields capacitor values between 10 μF and 2200 μF that satisfies the loop requirements for stable operation. But to achieve an acceptable output ripple voltage, (approximately 1% of the output voltage) and transient response, the output capacitor can need to be several times larger than Equation yields.
However, for acceptable output ripple voltage select
COUT ≥ 680 μF
COUT = 680-μF electrolytic capacitor
- The capacitor voltage rating must be at last 1.5 times greater than the output voltage. For a 10-V regulator, TI recommends a rating of at least 15 V or more. Higher voltage electrolytic capacitors generally have lower ESR numbers, and for this reason it can be necessary to select a capacitor rate for a higher voltage than can normally be needed.