SLVS861F august 2008 – june 2020 TPS40210-Q1 , TPS40211-Q1
PRODUCTION DATA
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 Minimum On-Time and Off-Time Considerations
- 7.3.2 Current Sense and Overcurrent
- 7.3.3 Current Sense and Subharmonic Instability
- 7.3.4 Current Sense Filtering
- 7.3.5 Soft Start
- 7.3.6 BP Regulator
- 7.3.7 Shutdown (DIS/ EN Pin)
- 7.3.8 Control Loop Considerations
- 7.3.9 Gate Drive Circuit
- 7.3.10 TPS40211-Q1
- 7.4 Device Functional Modes
-
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 R-C Oscillator
- 8.2.2.12 Soft-Start Capacitor
- 8.2.2.13 Regulator Bypass
- 8.2.3 Application Curves
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
Package Options
Refer to the PDF data sheet for device specific package drawings
Mechanical Data (Package|Pins)
- DGQ|10
Thermal pad, mechanical data (Package|Pins)
Orderable Information
6.8 Typical Characteristics
Figure 1. Frequency vs Timing Resistance 
Figure 3. Quiescent Current vs Junction Temperature 
Figure 5. Reference Voltage Change vs Junction Temperature 
Figure 7. Undervoltage Lockout Threshold vs Junction Temperature 
Figure 9. Overcurrent Threshold vs Input Voltage 
Figure 11. Oscillator Amplitude vs Junction Temperature 
Figure 13. FB Bias Current vs Junction Temperature 
Figure 15. Compensation Sink Current vs Junction Temperature 
Figure 17. Regulator Voltage vs Junction Temperature 
Figure 19. Current-Sense Amplifier Gain vs Junction Temperature 
Figure 2. Switching Frequency vs Duty Cycle 
Figure 4. Shutdown Current vs Junction Temperature 
Figure 6. Reference Voltage Change vs Input Voltage 
Figure 8. Overcurrent Threshold vs Junction Temperature 
Figure 10. Switching Frequency Change vs Junction Temperature 
Figure 12. Soft-Start Charge and Discharge Resistance vs Junction Temperature 
Figure 14. Compensation Source Current vs Junction Temperature 
Figure 16. Valley Voltage Change vs Junction Temperature 
Figure 18. DIS/EN Turn-On Threshold vs Junction Temperature