SLVSCK7E
December 2014 – May 2020
TPS62170-Q1
,
TPS62171-Q1
,
TPS62172-Q1
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application Schematic
Efficiency versus Output Current
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Enable / Shutdown (EN)
8.3.2
Soft Start
8.3.3
Power Good (PG)
8.3.4
Undervoltage Lockout (UVLO)
8.3.5
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Pulse Width Modulation (PWM) Operation
8.4.2
Power Save Mode Operation
8.4.3
100% Duty-Cycle Operation
8.4.4
Current Limit and Short Circuit Protection
8.4.5
Operation Above TJ = 125°C
9
Application and Implementation
9.1
Application Information
9.2
Typical TPS62170-Q1 Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Custom Design With WEBENCH® Tools
9.2.2.2
Programming the Output Voltage
9.2.2.3
External Component Selection
9.2.2.3.1
Inductor Selection
9.2.2.3.2
Capacitor Selection
9.2.2.3.2.1
Output Capacitor
9.2.2.3.2.2
Input Capacitor
9.2.2.4
Output Filter and Loop Stability
9.2.3
Application Curves
9.3
System Examples
9.3.1
Inverting Power Supply
9.3.2
Various Output Voltages
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Thermal Considerations
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.1.1.1
Custom Design With WEBENCH® Tools
12.1.2
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Related Links
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Receiving Notification of Documentation Updates
12.7
Support Resources
12.8
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DSG|8
MPDS308C
Thermal pad, mechanical data (Package|Pins)
DSG|8
QFND141I
Orderable Information
slvsck7e_oa
slvsck7e_pm