SLVSFQ0B
October 2020 – June 2024
TPS54J061
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
Enable and Internal LDO
6.3.2
Split Rail and External LDO
6.3.3
Output Voltage Setting
6.3.4
Soft Start and Output-Voltage Tracking
6.3.5
Frequency and Operation Mode Selection
6.3.6
D-CAP3™ Control Mode
6.3.7
Current Sense and Positive Overcurrent Protection
6.3.8
Low-side FET Negative Current Limit
6.3.9
Power Good
6.3.10
Overvoltage and Undervoltage Protection
6.3.11
Out-Of-Bounds Operation (OOB)
6.3.12
Output Voltage Discharge
6.3.13
UVLO Protection
6.3.14
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
Auto-Skip Eco-Mode Light Load Operation
6.4.2
Forced Continuous-Conduction Mode
6.4.3
Pre-Bias Start-up
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
Choose the Switching Frequency and Operation Mode (MODE Pin)
7.2.2.2
Choose the Output Inductor (L)
7.2.2.3
Set the Current Limit (TRIP)
7.2.2.4
Choose the Output Capacitors (COUT)
7.2.2.5
Choose the Input Capacitors (CIN)
7.2.2.6
Feedback Network (FB Pin)
7.2.2.7
Soft Start Capacitor (SS/REFIN Pin)
7.2.2.8
EN Pin Resistor Divider
7.2.2.9
VCC Bypass Capacitor
7.2.2.10
BOOT Capacitor
7.2.2.11
Series BOOT Resistor and RC Snubber
7.2.2.12
PGOOD Pullup Resistor
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
Documentation Support
8.1.1
Related Documentation
8.2
Support Resources
8.3
Receiving Notification of Documentation Updates
8.4
Trademarks
8.5
Glossary
8.6
Electrostatic Discharge Caution
9
Revision History
10
Mechanical, Packaging, and Ordering Information
1
Features
2.7V to 16V input range with external bias ranging from 3.3V to 3.6V
4V to 16V input range without external bias
Integrated MOSFETs support 6A continuous output current
D-CAP3™
control mode with fast load-step response
Supports all ceramic output capacitors
Reference voltage 600mV ±1% tolerance from
–40°C to +125°C junction temperature
0.6V to 5.5V output voltage range
Auto-skipping Eco-mode for high light-load efficiency
Programmable current limit through external resistor
Selectable frequency settings (600kHz, 1100kHz, 2200kHz)
Internal fixed, external adjustable soft start
Safe prebiased start-up capability
Built-in circuit allows slow output discharge
Open-drain power-good output
Self restarting hiccup mode for OC, UV faults
Fully RoHS compliant
2mm × 3mm, 14-pin
HotRod™
package with 0.5mm pitch