ZHCSSA9
june 2023
TPS62901-Q1
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
Mode Selection and Device Configuration MODE/S-CONF
8.3.2
Adjustable VO Operation (External Voltage Divider)
8.3.3
Selectable VO Operation (VSET and Internal Voltage Divider)
8.3.4
Soft Start and Tracking (SS/TR)
8.3.4.1
Tracking Function
8.3.5
Smart Enable with Precise Threshold
8.3.6
Power Good (PG)
8.3.7
Output Discharge Function
8.3.8
Undervoltage Lockout (UVLO)
8.3.9
Current Limit and Short-Circuit Protection
8.3.10
High Temperature Specifications
8.3.11
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Forced Pulse Width Modulation (FPWM) Operation
8.4.2
Power Save Mode Operation (Auto PFM and PWM)
8.4.3
AEE (Automatic Efficiency Enhancement)
8.4.4
100% Duty-Cycle Operation
8.4.5
Starting into a Prebiased Load
9
Application and Implementation
9.1
Application Information
9.2
Typical Application with Adjustable Output Voltage
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Custom Design With WEBENCH® Tools
9.2.2.2
Programming the Output Voltage
9.2.2.3
External Component Selection
9.2.2.3.1
Output Filter and Loop Stability
9.2.2.3.2
Inductor Selection
9.2.2.3.3
Capacitor Selection
9.2.2.3.3.1
Output Capacitor
9.2.2.3.3.2
Input Capacitor
9.2.2.3.3.3
Soft-Start Capacitor
9.2.3
Application Curves
9.2.3.1
Application Curves Vout = 1.8 V
9.2.3.2
Application Curves Vout = 1.2 V
9.2.3.3
Application Curves Vout = 0.6 V
9.3
Typical Application with Selectable VOUT using VSET
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.2.1
Programming the Output Voltage
9.3.3
Application Curves
9.3.3.1
Application Curves Vout = 5 V
9.3.3.2
Application Curves Vout = 3.3 V
9.4
System Examples
9.4.1
LED Power Supply
9.4.2
Powering Multiple Loads
9.4.3
Voltage Tracking
9.4.4
Inverting Buck-Boost (IBB)
9.5
Power Supply Recommendations
9.6
Layout
9.6.1
Layout Guidelines
9.6.2
Layout Example
9.6.3
Thermal Considerations
10
Device and Documentation Support
10.1
Device Support
10.1.1
第三方产品免责声明
10.1.2
Development Support
10.1.2.1
Custom Design With WEBENCH® Tools
10.2
Documentation Support
10.2.1
Related Documentation
10.3
接收文档更新通知
10.4
支持资源
10.5
Trademarks
10.6
静电放电警告
10.7
术语表
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RYT|9
MPSS145A
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcssa9_oa
Data Sheet
TPS62901-Q1
3V 至 1
8
V、
1A
、
汽车类
、低 I
Q
降压转换器,且
+165°C