ZHCSNW4 October 2022 LM5012-Q1
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Control Architecture
- 8.3.2 Internal VCC Regulator and Bootstrap Capacitor
- 8.3.3 Regulation Comparator
- 8.3.4 Internal Soft Start
- 8.3.5 On-Time Generator
- 8.3.6 Current Limit
- 8.3.7 N-Channel Buck Switch and Driver
- 8.3.8 Schottky Diode Selection
- 8.3.9 Enable/Undervoltage Lockout (EN/UVLO)
- 8.3.10 Power Good (PGOOD)
- 8.3.11 Thermal Protection
- 8.4 Device Functional Modes
- 9 Application and Implementation
- 10Device and Documentation Support
- 11Mechanical, Packaging, and Orderable Information
9.2.3 Application Curves
| VOUT = 12 V | RON = 102 kΩ | LO = 22 μH |
| VOUT = 12 V | RON = 102 kΩ | LO = 22 μH |
| VIN = 48 V | VOUT = 12 V | IOUT = 0 A |
| VIN = 48 V | VOUT 12 V | Load = 0 A to Short |
| VIN = 48 V | VOUT = 12 V | IOUT = 2.5 A |
| VIN = 48 V | VOUT = 12 V | IOUT = 3.5 A (LM5013-Q1) |
| VOUT = 12 V | RON = 102 kΩ | LO = 22 μH |
| VIN = 48 V | VOUT = 12 V | IOUT
= 1.0-A to 2.5-A (Rise/fall time = 1A/uS) |
| VIN = 48 V | VOUT 12 V | Load = 0 A to Short |
| VIN = 48 V | VOUT 12 V | IOUT = 200 mA |
| Filter used for EMC scan. Additionally, the regulator was housed in an enclosed shield. |