ZHCSEL9B
december 2015 – may 2023
TPS65265
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Adjusting the Output Voltage
8.3.2
Mix PGOOD, PG_DLY Functions
8.3.2.1
Programmable PGOOD DELAY
8.3.2.2
Relay Control
8.3.3
Enable and Adjusting UVLO
8.3.4
Soft-Start Time
8.3.5
Power-Up Sequencing
8.3.5.1
External Power Sequencing
8.3.5.2
Automatic Power Sequencing
8.3.6
V7V Low Dropout Regulator and Bootstrap
8.3.7
Out of Phase Operation
8.3.8
Output Overvoltage Protection (OVP)
8.3.9
PSM
8.3.10
Slope Compensation
8.3.11
Overcurrent Protection
8.3.11.1
High-Side MOSFET Overcurrent Protection
8.3.11.2
Low-Side MOSFET Overcurrent Protection
8.3.12
Adjustable Switching Frequency
8.3.13
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Operation With VIN < 4 V (Minimum VIN)
8.4.2
Operation With EN Control
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Output Inductor Selection
9.2.2.2
Output Capacitor Selection
9.2.2.3
Input Capacitor Selection
9.2.2.4
Loop Compensation
9.2.3
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
接收文档更新通知
10.2
支持资源
10.3
Trademarks
10.4
静电放电警告
10.5
术语表
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RHB|32
MPQF130D
散热焊盘机械数据 (封装 | 引脚)
RHB|32
QFND029X
订购信息
zhcsel9b_oa
zhcsel9b_pm
1
特性
工作输入电压范围:4.5V 至 17V
反馈基准电压为 0.6V ±1.33%
持续输出电流:5A/3A/2A
可调节时钟频率范围为 250kHz 至
2.3MHz
外部同步振荡器
Buck1、Buck2 和 Buck3 之间具有 120° 相位差
针对每个降压转换器的专用使能引脚
针对每个降压转换器的固定软启动 (SS) 时间 (2.4ms)
自动加电/断电序列以及各降压转换器间可调节的间隔时间(6 种组合)
支持脉冲跳跃模式 (PSM) 和强制持续电流模式 (FCCM)
输出电压电源正常状态指示器和可调节延迟时间
热过载保护
32 引脚 QFN (RHB) 5mm × 5mm 封装