ZHCSNZ3A
January 2023 – October 2023
TPS62870
,
TPS62871
,
TPS62872
,
TPS62873
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
5
说明(续)
6
Device Options
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings_Catalog
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
I2C Interface Timing Characteristics
8.7
Timing Requirements
8.8
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Fixed-Frequency DCS Control Topology
9.3.2
Forced PWM and Power Save Modes
9.3.3
Precise Enable
9.3.4
Start-Up
9.3.5
Switching Frequency Selection
9.3.6
Output Voltage Setting
9.3.6.1
Output Voltage Range
9.3.6.2
Output Voltage Setpoint
9.3.6.3
Non-Default Output Voltage Setpoint
9.3.6.4
Dynamic Voltage Scaling
9.3.7
Compensation (COMP)
9.3.8
Mode Selection and Clock Synchronization (MODE/SYNC)
9.3.9
Spread Spectrum Clocking (SSC)
9.3.10
Output Discharge
9.3.11
Undervoltage Lockout (UVLO)
9.3.12
Overvoltage Lockout (OVLO)
9.3.13
Overcurrent Protection
9.3.13.1
Cycle-by-Cycle Current Limiting
9.3.13.2
Hiccup Mode
9.3.13.3
Current Limit Mode
9.3.14
Power Good (PG)
9.3.14.1
Standalone or Primary Device Behavior
9.3.14.2
Secondary Device Behavior
9.3.15
Remote Sense
9.3.16
Thermal Warning and Shutdown
9.3.17
Stacked Operation
9.4
Device Functional Modes
9.4.1
Power-On Reset
9.4.2
Undervoltage Lockout
9.4.3
Standby
9.4.4
On
9.5
Programming
9.5.1
Serial Interface Description
9.5.2
Standard, Fast, Fast Mode Plus Protocol
9.5.3
I2C Update Sequence
9.5.4
I2C Register Reset
9.6
Register Map
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Selecting the Inductor
10.2.2.2
Selecting the Input Capacitors
10.2.2.3
Selecting the Compensation Resistor
10.2.2.4
Selecting the Output Capacitors
10.2.2.5
Selecting the Compensation Capacitor, CC
10.2.2.6
Selecting the Compensation Capacitor, CC2
10.2.3
Application Curves
10.3
Best Design Practices
10.4
Power Supply Recommendations
10.5
Layout
10.5.1
Layout Guidelines
10.5.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
第三方产品免责声明
11.2
Documentation Support
11.2.1
Related Documentation
11.3
接收文档更新通知
11.4
支持资源
11.5
Trademarks
11.6
静电放电警告
11.7
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RXS|16
MPQF606D
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsnz3a_oa
zhcsnz3a_pm
1
特性
输入电压范围为 2.7V 至 6V
引脚对引脚兼容器件系列:6A、9A、12A 和 15A
四个输出电压范围:
0.4V 至 0.71875V(阶跃为 1.25mV)
0.4V 至 1.0375V(阶跃为 2.5mV)
0.4V 至 1.675V(阶跃为 5mV)
0.8V 至 3.35V(阶跃为 10mV)
输出电压精度为 ±1%
7mΩ 和 4.5mΩ 内部功率 MOSFET
可调节外部补偿
电阻可选启动输出电压
电阻可选开关频率
节电或强制 PWM 操作
与 I
2
C 兼容的接口频率高达 1MHz
远程差分检测
旨在提高输出电流能力的可选堆叠操作
热警告和热关断
精密使能输入
有源输出放电
可选展频时钟
具有窗口比较器的电源正常输出
采用具有可湿性侧面的 2.55mm x 3.55mm x 1mm VQFN 封装
结温范围为 –40°C 至 125°C,T
J