SLUSC89
November 2015
TPS40210-EP
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Soft-Start
7.3.2
BP Regulator
7.3.3
Shutdown (DIS/EN Pin)
7.3.4
Minimum On-Time and Off-Time Considerations
7.3.5
Setting the Oscillator Frequency
7.3.6
Synchronizing the Oscillator
7.3.7
Current Sense and Overcurrent
7.3.8
Current Sense and Subharmonic Instability
7.3.9
Current Sense Filtering
7.3.10
Control Loop Considerations
7.3.11
Gate Drive Circuit
7.4
Device Functional Modes
7.4.1
Operation Near Minimum Input Voltage
7.4.2
Operation With DIS/EN Pin
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Duty Cycle Estimation
8.2.2.2
Inductor Selection
8.2.2.3
Rectifier Diode Selection
8.2.2.4
Output Capacitor Selection
8.2.2.5
Input Capacitor Selection
8.2.2.6
Current Sense and Current Limit
8.2.2.7
Current Sense Filter
8.2.2.8
Switching MOSFET Selection
8.2.2.9
Feedback Divider Resistors
8.2.2.10
Error Amplifier Compensation
8.2.2.11
RC Oscillator
8.2.2.12
Soft-Start Capacitor
8.2.2.13
Regulator Bypass
8.2.2.14
Bill of Materials
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.1.2
Related Devices
11.2
Documentation Support
11.2.1
References
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DRC|10
MPDS117L
Thermal pad, mechanical data (Package|Pins)
DRC|10
QFND424B
Orderable Information
slusc89_oa
slusc89_pm
4 Revision History
DATE
REVISION
NOTES
November 2015
*
Initial release.