ZHCSK81A
September 2019 – October 2020
TPS65296
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Operation and D-CAP3 Control
7.3.2
Advanced Eco-mode Control
7.3.3
Soft Start and Prebiased Soft Start
7.3.4
Power Good
7.3.5
Overcurrent Protection and Undervoltage Protection
7.3.6
Overvoltage Protection
7.3.7
UVLO Protection
7.3.8
Output Voltage Discharge
7.3.9
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Light Load Operation for VDD1 Buck and VDD2 Buck
7.4.2
Output State Control
7.4.3
Output Sequence Control
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
External Component Selection
8.2.2.1.1
Inductor Selection
8.2.2.1.2
Output Capacitor Selection
8.2.2.1.3
Input Capacitor Selection
8.2.2.1.4
Bootstrap Capacitor and Resistor Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Support Resources
11.3
Receiving Notification of Documentation Updates
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RJE|18
MPQF488C
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsk81a_oa
1
特性
同步降压转换器 (VDD2)
输入电压范围:4.5V 至 18V
输出电压固定为 1.1V
D-CAP3™
模式控制,可实现快速瞬态响应
持续输出电流:8A
高级
Eco-mode™
脉冲跳跃
集成式 22mΩ/8.6mΩ R
DS(on)
内部电源开关
600kHz 开关频率
内部软启动:1.6ms
逐周期过流保护
锁存输出 OV/UV 保护
同步降压转换器 (VDD1)
输入电压范围:3V 至 5.5V
输出电压固定为 1.8V
D-CAP3™
模式控制,可实现快速瞬态响应
持续输出电流:1A
高级
Eco-mode™
脉冲跳跃
集成式 150mΩ/120mΩ R
DS(on)
内部电源开关
580kHz 开关频率
内部软启动:1ms
逐周期过流保护
锁存输出 OV/UV 保护
1.5A LDO (VDDQ)
1.5A 持续输出电流
仅需 10μF 的陶瓷输出电容
在 S3 状态下支持高阻态输出
±30mV VDDQ 输出精度(直流 + 交流)
低静态电流:150µA
电源正常指示器
输出放电功能
加电和断电排序控制
非锁存 OT 和 UVLO 保护
18 引脚 3.0mm × 3.0mm
HotRod™
VQFN 封装