ZHCSIT5C September 2018 – April 2024 LM5164
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Pin Configuration and Functions
- 5 Specifications
-
6 Detailed Description
- 6.1 Overview
- 6.2 Functional Block Diagram
- 6.3
Feature Description
- 6.3.1 Control Architecture
- 6.3.2 Internal VCC Regulator and Bootstrap Capacitor
- 6.3.3 Regulation Comparator
- 6.3.4 Internal Soft Start
- 6.3.5 On-Time Generator
- 6.3.6 Current Limit
- 6.3.7 N-Channel Buck Switch and Driver
- 6.3.8 Synchronous Rectifier
- 6.3.9 Enable/Undervoltage Lockout (EN/UVLO)
- 6.3.10 Power Good (PGOOD)
- 6.3.11 Thermal Protection
- 6.4 Device Functional Modes
- 7 Application and Implementation
- 8 Device and Documentation Support
- 9 Revision History
- 10Mechanical, Packaging, and Orderable Information
7.2 Typical Application
Figure 7-1 shows the schematic for a 12-V, 1-A COT converter.
Figure 7-1 Typical Application VIN(nom) = 48 V, VOUT = 12 V, IOUT(max) = 1 A, FSW(nom) = 300 kHzNote:
This and subsequent design examples are provided herein to showcase the LM5164 converter in several different applications. Depending on the source impedance of the input supply bus, an electrolytic capacitor may be required at the input to ensure stability, particularly at low input voltage and high output current operating conditions. See the Section 7.3 section for more details.