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TPS56A37 4.5V to 28V Input, 10A, Synchronous Buck Converter
SLVSHC9
January 2024
TPS56A37
PRODUCTION DATA
CONTENTS
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TPS56A37 4.5V to 28V Input, 10A, Synchronous Buck Converter
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
The Adaptive On-Time Control and PWM Operation
6.3.2
Power Up Sequence
6.3.3
Eco-mode Control Scheme
6.3.4
Soft Start and Prebiased Soft Start
6.3.5
Enable and Adjusting Undervoltage Lockout
6.3.6
Output Overcurrent Limit and Undervoltage Protection
6.3.7
Overvoltage Protection
6.3.8
UVLO Protection
6.3.9
Thermal Shutdown
6.3.10
Output Voltage Discharge
6.3.11
Power Good
6.3.12
Large Duty Operation
6.4
Device Functional Modes
6.4.1
Standby Operation
6.4.2
Light Load Operation
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
Output Voltage Resistors Selection
7.2.2.2
Output Filter Selection
7.2.2.3
Input Capacitor Selection
7.2.2.4
Bootstrap Capacitor Selection
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
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
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RPA|10
MPQF515
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvshc9_oa
slvshc9_pm
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Data Sheet
TPS56A37 4.5V to 28V Input, 10A, Synchronous Buck Converter
1
Features
4.5V to 28V input voltage range
0.6V to 13V output voltage range
Supports 10A continuous output current
Integrated 19.4mΩ and 8.5mΩ MOSFETs
0.6V ±1% reference voltage at 25°C
45uA low quiescent current
D-CAP3™
control mode for fast transient response
Eco-mode (auto-skip mode) for high light-load efficiency
Fixed 500kHz switching frequency
Cycle by cycle over current limit
Adjustable soft-start time with default 1.8ms
Built-in output discharge function
Power-good indicator to monitor output voltage
Supports up to 98% duty operation
Non-latched protections for UV, OV, OT, and UVLO
–40°C to +150°C operating junction temperature
Small 10-pin 3.0mm × 3.0mm
HotRod™
QFN package
Pin-to-pin compatible with 6A
TPS56637
and 8A
TPS56837
