SLUS714E
January 2007 – June 2019
TPS40077
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Application Diagram
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Electrical Characteristics
6.5
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Minimum Pulse Duration
7.3.2
Slew Rate Limit On VDD
7.3.3
Setting The Switching Frequency (Programming The Clock Oscillator)
7.3.4
Loop Compensation
7.3.5
Shutdown and Sequencing
7.3.6
Boost and LVBP Bypass Capacitance
7.3.7
Internal Regulators
7.3.8
Power Dissipation
7.3.9
Boost Diode
7.3.10
Synchronous Rectifier Control
7.4
Programming
7.4.1
Programming The Ramp Generator Circuit and UVLO
7.4.2
Programming Soft Start
7.4.3
Programming Short-Circuit Protection
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Buck Regulator 8-V to 16-V Input, 1.8-V Output at 10 A
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Power Train Components
8.2.1.2.1.1
Output Inductor, LOUT
8.2.1.2.1.2
Output Capacitor, COUT, ELCO and MLCC
8.2.1.2.1.3
Input Capacitor, CIN ELCO and MLCC
8.2.1.2.1.4
Switching MOSFET, QSW
8.2.1.2.1.5
Rectifier MOSFET, QSR
8.2.1.2.1.6
Timing Resistor, RT
8.2.1.2.1.7
Feed-Forward and UVLO Resistor, RKFF
8.2.1.2.1.8
Soft-Start Capacitor, CSS
8.2.1.2.1.9
Short-Circuit Protection, RILIM and CILIM
8.2.1.2.1.10
Boost Voltage, CBOOST and DBOOST (Optional)
8.2.1.2.1.11
Closing the Feedback Loop, RZ1, RP1, RPZ2, RSET1, RSET2, CZ2, CP2, and CPZ1
8.2.1.3
Application Curves
8.3
Additional System Examples
9
Layout
9.1
Layout Guidelines
10
Device and Documentation Support
10.1
Device Support
10.1.1
Third-Party Products Disclaimer
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Community Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Mechanical, Packaging, and Orderable Information
8.2.1.2.1
Power Train Components