ZHCSKA2A September 2019 – February 2020 LMR36520
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
9.2 Typical Application
shows a typical application circuit for the LMR36520. This device is designed to function over a wide range of external components and system parameters. However, the internal compensation is optimized for a certain range of external inductance and output capacitance. As a quick-start guide, Figure 13 provides typical component values for a range of the most common output voltages.
Figure 13. Example Application Circuit Table 2. Typical External Component Values
| ƒSW (kHz) | VOUT (V) | L (µH) | NOMINAL COUT (RATED CAPACITANCE) (1) | MINIMUM COUT (RATED CAPACITANCE) (2) | RFBT (Ω) | RFBB (Ω) | CIN | CFF |
|---|---|---|---|---|---|---|---|---|
| 400 | 3.3 | 6.8 | 3 × 22 µF | 3 × 22 µF | 100 k | 43.2 k | 2 × 4.7 µF + 220 nF | None |
| 400 | 5 | 10 | 2 × 22 µF | 2 × 22 µF | 100 k | 24.9 k | 2 × 4.7 µF + 220 nF | None |
| 400 | 12 | 33 | 4 × 10 µF | 4 × 10 µF | 100 k | 9.09 k | 2 × 4.7 µF + 220 nF | None |
(1) Optimized for superior load transient performance from 0 to 100% rated load.
(2) Optimized for size constrained end applications.