ZHCSFB9B June 2016 – March 2019 TPS63070
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
8.5.2 Current Limit
it is possible to calculate the output current in the different conditions in boost mode using Equation 2 and Equation 3 and in buck mode using Equation 4 and Equation 5.
![TPS63070 q1_boost_lvsa92[1].gif](/ods/images/ZHCSFB9B/q1_boost_lvsa92[1].gif "TPS63070")
![TPS63070 q1_buck_lvsa92[1].gif](/ods/images/ZHCSFB9B/q1_buck_lvsa92[1].gif "TPS63070")
With,
η = Estimated converter efficiency (use the number from the efficiency curves or 0.90 as an assumption)
IIN = Minimum average input current
The maximum output current TPS63070 can provide, can directly be seen from the graphs "Maximum Load Current vs Input Voltage" for different output voltages at (Figure 43, Figure 20 and Figure 22 ). The start-up current is lower because the current limit is set to typically 1A to limit the inrush current at start-up as long as the power good signal is low. Please see the typical start-up current graphs at Figure 42, Figure 19 and Figure 21. Once the power good comparator indicates "power good", the current limit is set to its nominal value as given in the electrical characteristics.