SLVSG70
april 2023
TPS62902-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and 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
Mode Selection and Device Configuration MODE/S-CONF
8.3.2
Adjustable VO Operation (External Voltage Divider)
8.3.3
Selectable VO Operation (VSET and Internal Voltage Divider)
8.3.4
Soft Start and Tracking (SS/TR)
8.3.4.1
Tracking Function
8.3.5
Smart Enable with Precise Threshold
8.3.6
Power Good (PG)
8.3.7
Output Discharge Function
8.3.8
Undervoltage Lockout (UVLO)
8.3.9
Current Limit and Short-Circuit Protection
8.3.10
High Temperature Specifications
8.3.11
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Forced Pulse Width Modulation (FPWM) Operation
8.4.2
Power Save Mode Operation (Auto PFM and PWM)
8.4.3
AEE (Automatic Efficiency Enhancement)
8.4.4
100% Duty-Cycle Operation
8.4.5
Starting into a Prebiased Load
9
Application and Implementation
9.1
Application Information
9.2
Typical Application with Adjustable Output Voltage
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
Output Filter and Loop Stability
9.2.2.3.2
Inductor Selection
9.2.2.3.3
Capacitor Selection
9.2.2.3.3.1
Output Capacitor
9.2.2.3.3.2
Input Capacitor
9.2.2.3.3.3
Soft-Start Capacitor
9.2.3
Application Curves
9.2.3.1
Application Curves Vout = 1.8 V
9.2.3.2
Application Curves Vout = 1.2 V
9.2.3.3
Application Curves Vout = 0.6 V
9.3
Typical Application with Selectable VOUT using VSET
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.2.1
Programming the Output Voltage
9.3.3
Application Curves
9.3.3.1
Application Curves Vout = 5 V
9.3.3.2
Application Curves Vout = 3.3 V
9.4
System Examples
9.4.1
LED Power Supply
9.4.2
Powering Multiple Loads
9.4.3
Voltage Tracking
9.4.4
Inverting Buck-Boost (IBB)
9.5
Power Supply Recommendations
9.6
Layout
9.6.1
Layout Guidelines
9.6.2
Layout Example
9.6.3
Thermal Considerations
10
Device and Documentation Support
10.1
Device Support
10.1.1
Third-Party Products Disclaimer
10.1.2
Development Support
10.1.2.1
Custom Design With WEBENCH® Tools
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Support Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RYT|9
MPSS145A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsg70_oa
slvsg70_pm
9.2.2.3.3
Capacitor Selection