SLVSFQ7A
December 2020 – December 2021
TPS55288-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
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
I2C Timing Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VCC Power Supply
7.3.2
Operation Mode Setting
7.3.3
Input Undervoltage Lockout
7.3.4
Enable and Programmable UVLO
7.3.5
Soft Start
7.3.6
Shutdown and Load Discharge
7.3.7
Switching Frequency
7.3.8
Switching Frequency Dithering
7.3.9
Inductor Current Limit
7.3.10
Internal Charge Path
7.3.11
Output Voltage Setting
7.3.12
Output Current Monitoring and Cable Voltage Droop Compensation
7.3.13
Integrated Gate Drivers
7.3.14
Output Current Limit
7.3.15
Overvoltage Protection
7.3.16
Output Short Circuit Protection
7.3.17
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
PWM Mode
7.4.2
Power Save Mode
7.5
Programming
7.5.1
Data Validity
7.5.2
START and STOP Conditions
7.5.3
Byte Format
7.5.4
Acknowledge (ACK) and Not Acknowledge (NACK)
7.5.5
Slave Address and Data Direction Bit
7.5.6
Single Read and Write
7.5.7
Multi-Read and Multi-Write
7.6
Register Maps
7.6.1
REF Register (Address = 0h, 1h) [reset = 11010010h, 00000000h]
7.6.2
IOUT_LIMIT Register (Address = 2h) [reset = 11100100h]
7.6.3
VOUT_SR Register (Address = 3h) [reset = 00000001h]
7.6.4
VOUT_FS Register (Address = 4h) [reset = 00000011h]
7.6.5
CDC Register (Address = 5h) [reset = 11100000h]
7.6.6
MODE Register (Address = 6h) [reset = 00100000h]
7.6.7
STATUS Register (Address = 7h) [reset = 00000011h]
7.6.8
Register Summary
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
Custom Design With WEBENCH® Tools
8.2.2.2
Switching Frequency
8.2.2.3
Output Voltage Setting
8.2.2.4
Inductor Selection
8.2.2.5
Input Capacitor
8.2.2.6
Output Capacitor
8.2.2.7
Output Current Limit
8.2.2.8
Loop Stability
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
11.1.2
Development Support
11.1.2.1
Custom Design With WEBENCH® Tools
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RPM|26
MPQF533A
Thermal pad, mechanical data (Package|Pins)
RPM|26
QFND631
Orderable Information
slvsfq7a_oa
slvsfq7a_pm
7.2
Functional Block Diagram