米6体育平台手机版

ZHCSJH5 March 2019 TLV61048

ADVANCE INFORMATION for pre-production products; subject to change without notice.

1 特性
2 应用
3 说明
1. Device Images
  1. 简化原理图
4 修订历史记录
5 Pin Configuration and Functions
1. Pin Functions
6 Specifications
7 Detailed Description
8 Application and Implementation
1. 8.1 Application Information
2. 8.2 Typical Applications
  1. 8.2.1 12-V Output Boost Converter With External Bias
  2. 8.2.2 15-V Output Boost Converter
    1. 8.2.2.1 Design Requirements
    2. 8.2.2.2 Detailed Design Procedure
      1. 8.2.2.2.1 Inductor Selection
      2. 8.2.2.2.2 Input and Output Capacitor Selection
9 Power Supply Recommendations
10Layout
1. 10.1 Layout Guidelines
2. 10.2 Layout Example
11器件和文档支持
12机械、封装和可订购信息

8.2.1 12-V Output Boost Converter With External Bias

In this design example, TLV61048 VIN pin is supplied by an external 3.3-V bias voltage to keep internal circuitry on in order to extend power stage operating V_IN to 1.5 V. 600-kHz switching frequency is selected to reduce switching loss in order to improve overall efficiency.

Figure 1. 12-V Boost Converter With External Bias