SLVS875C
January 2009 – November 2014
TPS54332
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
Efficiency
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics: Characterization Curves
6.8
Typical Characteristics: Supplemental Application Curves
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Fixed Frequency PWM Control
7.3.2
Voltage Reference (Vref)
7.3.3
Bootstrap Voltage (BOOT)
7.3.4
Enable and Adjustable Input Undervoltage Lockout (VIN UVLO)
7.3.5
Programmable Slow-Start Using SS Pin
7.3.6
Error Amplifier
7.3.7
Slope Compensation
7.3.8
Current Mode Compensation Design
7.3.9
Overcurrent Protection and Frequency Shift
7.3.10
Overvoltage Transient Protection
7.3.11
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Operation With VIN < 3.5 V
7.4.2
Operation With EN Control
7.4.3
Eco-Mode
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
Switching Frequency
8.2.2.2
Output Voltage Set Point
8.2.2.3
Input Capacitors
8.2.2.4
Output Filter Components
8.2.2.5
Inductor Selection
8.2.2.6
Capacitor Selection
8.2.2.7
Compensation Components
8.2.2.8
Bootstrap Capacitor
8.2.2.9
Catch Diode
8.2.2.10
Output Voltage Limitations
8.2.2.11
Power Dissipation Estimate
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Estimated Circuit Area
10.4
Electromagnetic Interference (EMI) Considerations
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.2
Trademarks
11.3
Electrostatic Discharge Caution
11.4
Glossary
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DDA|8
MPDS092F
散热焊盘机械数据 (封装 | 引脚)
DDA|8
PPTD087E
订购信息
slvs875c_oa
slvs875c_pm
8.2.3
Application Curves
Figure 13.
TPS54332 Efficiency
Figure 15.
TPS54332 Load Regulation
Figure 17.
TPS54332 Transient Response
Figure 19.
TPS54332 Output Ripple
Figure 21.
TPS54332 Start-Up
Figure 14.
TPS54332 Low-Current Efficiency
Figure 16.
TPS54332 Line Regulation
Figure 18.
TPS54332 Loop Response
Figure 20.
TPS54332 Input Ripple
Figure 22.
TPS54332 Output Ripple during Eco-Mode Operation