SLVSEG1A
July 2018 – September 2019
TPS56637
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
Efficiency vs Output Current VOUT = 5 V
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
The Adaptive On-Time Control and PWM Operation
7.3.2
Mode Selection
7.3.2.1
Eco-mode™ Control Scheme
7.3.2.2
FCCM Control
7.3.3
Soft Start and Pre-Biased Soft Start
7.3.4
Enable and Adjusting Undervoltage Lockout
7.3.5
Output Overcurrent Limit and Undervoltage Protection
7.3.6
Overvoltage Protection
7.3.7
UVLO Protection
7.3.8
Thermal Shutdown
7.3.9
Output Voltage Discharge
7.3.10
Power Good
7.4
Device Functional Modes
7.4.1
Standby Operation
7.4.2
Normal Operation
7.4.3
Light Load 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
Output Voltage Resistors Selection
8.2.2.2
Output Filter Selection
8.2.2.3
Input Capacitor Selection
8.2.2.4
Bootstrap 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
Documentation Support
11.1.1
Related Documentation
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
12.1
Package Option Addendum
12.1.1
Packaging Information
12.1.2
Tape and Reel Information
1
Features
4.5-V to 28-V input voltage range
0.6-V to 13-V output voltage range
6-A maximum continuous output current
Integrated 26-mΩ and 12-mΩ MOSFETs
0.6-V ±1% Reference Voltage
D-CAP3™ control mode for fast transient response
Eco-mode™ and FCCM (forced continuous conduction mode) selectable for light-load operation through MODE pin
Internal 2-ms soft start
Built-in output discharge function
500-kHz switching frequency
Power good indicator to monitor output voltage
Cycle by cycle over current limit
Non-latched protections for UV, OV, OT and UVLO
–40°C to +150°C operating junction temperature
Small 10-Pin 3.0-mm × 3.0-mm HotRod™ QFN Package
Available in
WEBENCH® Power Designer
to create custom designs