ZHCSQD0 April 2022 LM5013-Q1
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 Control Architecture
- 7.3.2 Internal VCC Regulator and Bootstrap Capacitor
- 7.3.3 Regulation Comparator
- 7.3.4 Internal Soft Start
- 7.3.5 On-Time Generator
- 7.3.6 Current Limit
- 7.3.7 N-Channel Buck Switch and Driver
- 7.3.8 Schottky Diode Selection
- 7.3.9 Enable/Undervoltage Lockout (EN/UVLO)
- 7.3.10 Power Good (PGOOD)
- 7.3.11 Thermal Protection
- 7.4 Device Functional Modes
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
8.2 Typical Application
Figure 8-1 shows the schematic for 48-V to 12-V conversion.
Figure 8-1 Typical Application,
VIN(nom) = 48 V, VOUT = 12 V, IOUT(max) =
3.5 A, FSW(nom) = 300 kHzNote:
This and subsequent design examples are provided herein to showcase the LM5013-Q1 converter in several different applications. Depending on the source impedance of the input supply bus, an electrolytic capacitor can be required at the input to ensure stability, particularly at low input voltage and high output current operating conditions. See the Power Supply Recommendations for more details.