SLVSD38C
November 2015 – August 2021
TPS61089
PRODMIX
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
Undervoltage Lockout (UVLO)
8.3.2
Enable and Disable
8.3.3
Soft Start
8.3.4
Adjustable Switching Frequency
8.3.5
Adjustable Peak Current Limit
8.3.6
Overvoltage Protection
8.3.7
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Operation
8.4.1.1
Forced PWM Mode
8.4.1.2
PFM Mode
9
Application and Implementation
9.1
Application Information
9.2
Typical 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
Setting Switching Frequency
9.2.2.3
Setting Peak Current Limit
9.2.2.4
Setting Output Voltage
9.2.2.5
Inductor Selection
9.2.2.6
Input Capacitor Selection
9.2.2.7
Output Capacitor Selection
9.2.2.8
Loop Stability
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.2.1
Thermal Considerations
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.1.2
Development Support
12.1.2.1
Custom Design With WEBENCH® Tools
12.2
Receiving Notification of Documentation Updates
12.3
Support Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RNR|11
MPQF447
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsd38c_oa
11.2
Layout Example
Figure 11-1
Layout Example