SLVSHH7
January 2024
TPS56837H
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
The Adaptive On-Time Control and PWM Operation
6.3.2
Mode Selection
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
Package Options
Mechanical Data (Package|Pins)
RPA|10
MPQF515
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvshh7_oa
slvshh7_pm
1
Features
Support for USB power delivery (USB PD)
4.5V to 28V input voltage range
4V to 22V output voltage range
Supports 8A continuous output current
Three adjustable cycle-by-cycle over current limit for low-side MOSFET by mode selection
High efficiency over entire load range
Integrated 20.4mΩ and 9.5mΩ MOSFETs
45uA low quiescent current
Fixed 500kHz switching frequency
98.7% efficiency at V
IN
= 24V, V
OUT
= 20V and I
OUT
= 3A
Eco-mode for high light-load efficiency
0.6V ±1% reference voltage at 25°C
D-CAP3™
control mode for fast transient response
Adjustable soft-start time by SS capacitor
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