ZHCSI00D April 2018 – September 2020 LMR36015
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)明
- 4 Revision History
- 5 說(shuō)明（續(xù)）
- 6 Device Comparison Table
- 7 Pin Configuration and Functions
- 8 Specifications
- 9 Detailed Description
-
10Application and Implementation
- 10.1 Application Information
- 10.2
Typical Application
- 10.2.1
Design 1: Low Power 24-V, 1.5-A PFM Converter
- 10.2.1.1 Design Requirements
- 10.2.1.2
Detailed Design Procedure
- 10.2.1.2.1 Custom Design With WEBENCH Tools
- 10.2.1.2.2 Choosing the Switching Frequency
- 10.2.1.2.3 Setting the Output Voltage
- 10.2.1.2.4 Inductor Selection
- 10.2.1.2.5 Output Capacitor Selection
- 10.2.1.2.6 Input Capacitor Selection
- 10.2.1.2.7 CBOOT
- 10.2.1.2.8 VCC
- 10.2.1.2.9 CFF Selection
- 10.2.1.2.10 Maximum Ambient Temperature
- 10.2.2 Application Curves
- 10.2.3 Design 2: High Density 24-V, 1.5-A FPWM Converter
- 10.2.1
Design 1: Low Power 24-V, 1.5-A PFM Converter
- 10.3 What to Do and What Not to Do
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RNX|12
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RNX|12
訂購(gòu)信息
10.2 Typical Application
Figure 10-1 showsa typical application circuit for the LMR36015. 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, Table 10-1 provides typical component values for a range of the most common output voltages.
Figure 10-1 Example Applications CircuitTable 10-1 Typical External Component Values
| ?SW (kHz) | VOUT (V) | L (μH) | NOMINAL COUT (RATED CAPACITANCE) (1) | MINIMUM COUT (RATED CAPACITANCE) (2) | RFBT (Ω) | RFBB (Ω) | CIN | CFF |
|---|---|---|---|---|---|---|---|---|
| 400 | 3.3 | 10 | 2 × 47 μF | 2 × 22 μF | 100 k | 43.2 k | 4.7 μF + 2 × 220 nF | 20 pF |
| 1000 | 3.3 | 6.8 | 3 × 15 μF | 2 × 15 μF | 100 k | 43.2 k | 4.7 μF + 2 × 220 nF | 20 pF |
| 400 | 5 | 15 | 3 × 22 μF | 2 × 22 μF | 100 k | 24.9 k | 4.7 μF + 2 × 220 nF | 20 pF |
| 1000 | 5 | 10 | 3 × 15 μF | 2 × 15 μF | 100 k | 24.9 k | 4.7 μF + 2 × 220 nF | 20 pF |
| 400 | 12 | 27 | 3 × 22 μF | 2 × 22 μF | 100 k | 9.09 k | 4.7 μF + 2 × 220 nF | 20 pF |
| 1000 | 12 | 22 | 2 × 22 μF | 2 × 15 μF | 100 k | 9.09 k | 4.7 μF + 2 × 220 nF | 20 pF |
(1) Optimized for superior load transient performance from 0 to 100% rated load.
(2) Optimized for size constrained end applications.