SLVSFQ8A
December 2020 – December 2021
TPS552882-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
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
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 Indication and Cable Voltage Drop 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
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 Sense Resistor
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
Glossary
11.6
Electrostatic Discharge Caution
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
slvsfq8a_oa
slvsfq8a_pm
1
Features
AEC-Q100 qualified:
Device temperature grade 1: –40°C to +125°C ambient operating temperature range
Wide input and output voltage range
Wide input voltage range: 2.7 V to 36 V
Wide output voltage range: 0.8 V to 22 V
High efficiency over entire load range
97% efficiency at V
IN
= 12 V, V
OUT
= 20 V and I
OUT
= 3 A
Avoid frequency interference and crosstalk
Optional clock synchronization
Programmable switching frequency from 200 kHz to 2.2 MHz
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
Programmable average inductor current limit up to 16 A
Small solution size
Maximum switching frequency up to 2.2 MHz
4.0-mm × 3.5-mm
HotRod™
QFN package with wettable flank option
Adjustable output voltage compensation for voltage droop over the cable
Programmable PFM and FPWM mode at light load
Programmable output current limit by sensing resistor
±1% reference voltage accuracy
Fixed 4-ms soft-start time
Create a custom design using the TPS552882-Q1 with the
WEBENCH®
Power Designer