SLVSI80
March 2026
TPS552852
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
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
Mode/SYNC Pin Configuration
6.3.3
Input Undervoltage Lockout
6.3.4
Enable and Programmable UVLO
6.3.5
Soft Start
6.3.6
Shutdown
6.3.7
Switching Frequency
6.3.8
Inductor Current Limit
6.3.9
Internal Charge Path
6.3.10
Output Voltage Setting
6.3.11
Output Current Limit
6.3.12
Input Overvoltage Protection
6.3.13
Output Overvoltage Protection
6.3.14
Output Short-Circuit Protection
6.3.15
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
PWM Mode
6.4.2
Power Save Mode
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
Inductor Selection
7.2.2.2
Input Capacitor
7.2.2.3
Output Capacitor
7.2.2.4
Output Current Limit
7.2.2.5
Loop Stability
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Third-Party Products Disclaimer
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
1
Features
Wide input and output voltage range
Wide input voltage range: 2.4V to 22V
Minimum input voltage for start-up: 3.0V
Wide output voltage range: 0.8V to 15V
Reference voltage accuracy: ±1%
Programmable output current limit
High efficiency over entire load range
94.3% efficiency at V
IN
= 12V, V
OUT
= 12V and I
OUT
= 5A
Rich protection features
Input overvoltage protection
Output relative overvoltage protection
Hiccup mode for output short-circuit protection
Programmable PFM and FPWM mode at light load
Thermal shutdown protection
Average inductor current limit: 8A
Small design size
Four low R
DS(ON)
internal MOSFETs
High switching frequency: 2.1MHz
2.5mm × 3.5mm
HotRod™
WQFN package