SLVSGW6
August 2024
TPS55287
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
I2C Timing Characteristics
5.7
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
VCC Power Supply
6.3.2
EXTVCC Power Supply
6.3.3
Operation Mode Setting
6.3.4
Input Undervoltage Lockout
6.3.5
Enable and Programmable UVLO
6.3.6
Soft Start
6.3.7
Shutdown and Load Discharge
6.3.8
Switching Frequency
6.3.9
Switching Frequency Dithering
6.3.10
Inductor Current Limit
6.3.11
Internal Charge Path
6.3.12
Output Voltage Setting
6.3.13
Output Current Monitoring and Cable Voltage Droop Compensation
6.3.14
Output Current Limit
6.3.15
Overvoltage Protection
6.3.16
Output Short Circuit Protection
6.3.17
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
PWM Mode
6.4.2
Power Save Mode
6.5
Programming
6.5.1
Data Validity
6.5.2
START and STOP Conditions
6.5.3
Byte Format
6.5.4
Acknowledge (ACK) and Not Acknowledge (NACK)
6.5.5
Target Address and Data Direction Bit
6.5.6
Single Read and Write
6.5.7
Multiread and Multiwrite
6.6
Register Maps
6.6.1
REF Register (Address = 0h, 1h)
6.6.2
IOUT_LIMIT Register (Address = 2h) [reset = 11100100h]
6.6.3
VOUT_SR Register (Address = 3h) [reset = 00000001h]
6.6.4
VOUT_FS Register (Address = 4h) [reset = 00000011h]
6.6.5
CDC Register (Address = 5h) [reset = 11100000h]
6.6.6
MODE Register (Address = 6h) [reset = 00100000h]
6.6.7
STATUS Register (Address = 7h) [reset = 00000011h]
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Switching Frequency
7.2.2.2
Output Voltage Setting
7.2.2.3
Inductor Selection
7.2.2.4
Input Capacitor
7.2.2.5
Output Capacitor
7.2.2.6
Output Current Limit
7.2.2.7
Loop Stability
7.2.3
Application Curves
8
Power Supply Recommendations
9
Layout
9.1
Layout Guidelines
9.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.1.1
Third-Party Products Disclaimer
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RYQ|21
MPQF641
Thermal pad, mechanical data (Package|Pins)
RYQ|21
QFND730
Orderable Information
slvsgw6_oa
1
Features
Programmable power supply (PPS) support for USB power delivery (USB PD)
3.0V to 36V wide input voltage range
0.8V to 22V with 10mV step programmable output voltage range
±1% reference voltage accuracy
Adjustable output voltage compensation for voltage droop over the cable
Programmable output current limit with 50mA step
±5% accurate output current monitoring
I
2
C interface
High efficiency over entire load range
96.7% efficiency at V
IN
= 12V, V
OUT
= 20V, and I
OUT
= 1.5A
Programmable PFM and FPWM mode at light load
Avoid frequency interference and crosstalk
Optional clock synchronization
Programmable switching frequency from 200kHz to 2.2MHz
EMI mitigation
Optional programmable spread spectrum
Lead-less package
Rich protection features
Output overvoltage protection
Hiccup mode for output short-circuit protection
Thermal shutdown protection
4-A average inductor current limit
Small solution size
Maximum switching frequency up to 2.2MHz
3.0mm × 5.0mm
HotRod™
QFN package