ZHCSOE3E August 2021 – September 2023 LMR38020
PRODUCTION DATA
- 1
- 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 Fixed Frequency Peak Current Mode Control
- 8.3.2 Adjustable Output Voltage
- 8.3.3 Enable
- 8.3.4 Switching Frequency and Synchronization (RT/SYNC)
- 8.3.5 Power-Good Flag Output
- 8.3.6 Minimum On Time, Minimum Off Time, and Frequency Foldback
- 8.3.7 Bootstrap Voltage
- 8.3.8 Overcurrent and Short Circuit Protection
- 8.3.9 Soft Start
- 8.3.10 Thermal Shutdown
- 8.4 Device Functional Modes
- 9 Application and Implementation
- 10Device and Documentation Support
- 11Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- DDA|8
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- DDA|8
訂購信息
7.7 Typical Characteristics
Unless otherwise specified the following conditions apply: TA = 25°C, VIN = 24 V, fSW = 400 kHz
| FSW = 400 kHz | VOUT = 12.0 V |
| FSW = 400 kHz | VOUT = 5.0 V | PFM version |
| VOUT = 5.0 V | FPWM version |
| VOUT = 5 V | RFBB = 100 k | L = 15 μH (PFM) |
| Input voltage = 48 V | IOUT = 2 A | FPWM version |
Figure 7-6 VIN UVLO vs Temperature