SLUSDE4A
August 2019 – August 2019
TPS56C230
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
Efficiency vs Output Current Eco-mode
4
Revision History
5
Pin Configuration and Functions
Pin 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
PWM Operation and D-CAP3 Control
7.3.2
Soft Start
7.3.3
Large Duty Operation
7.3.4
Power Good
7.3.5
Overcurrent Protection and Undervoltage Protection
7.3.6
Overvoltage Protection
7.3.7
Out-of-Bounds Operation
7.3.8
UVLO Protection
7.3.9
Output Voltage Discharge
7.3.10
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Light Load Operation
7.4.2
Eco-mode Control
7.4.3
Force CCM
7.4.4
Mode Selection
7.4.5
Standby Operation
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
Output Voltage Set Point
8.2.2.3
MODE Selection
8.2.2.4
Inductor Selection
8.2.2.5
Output Capacitor Selection
8.2.2.6
Input Capacitor Selection
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
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
1
Features
Input voltage range: 4.5 V to 18 V
Output voltage range: 0.6 V to 5.5 V
Supports 12-A continuous output current
D-CAP3™ architecture control for fast transient response
±1% feedback voltage accuracy (25°C)
Integrated 17-mΩ and 5.9-mΩ FETs
Selectable Eco-mode™ and Forced Continuous Conductive Mode (FCCM) by MODE pin
500-kHz switching frequency
Adjustable soft-start time with default 1.2 ms
Integrated Power Good indicator
Built-in output discharge function
Cycle-by-cycle over current protection
Non-latched over-voltage, under-voltage, over-temperature and under voltage lock-out protections
-40°C to 125°C Operating Junction Temperature
20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package
Pin to pin compatible with 8-A
TPS568230
Create a Custom Design Using the TPS56C230 With the
WEBENCH® Power Designer