SLVSD26B
April 2016 – April 2021
TPS54202
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
Timing Requirements
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
Pulse Skip Mode
7.3.3
Error Amplifier
7.3.4
Slope Compensation and Output Current
7.3.5
Enable and Adjusting Under Voltage Lockout
7.3.6
Safe Startup into Pre-Biased Outputs
7.3.7
Voltage Reference
7.3.8
Adjusting Output Voltage
7.3.9
Internal Soft-Start
7.3.10
Bootstrap Voltage (BOOT)
7.3.11
Overcurrent Protection
7.3.11.1
High-Side MOSFET Overcurrent Protection
7.3.11.2
Low-Side MOSFET Overcurrent Protection
7.3.12
Spread Spectrum
7.3.13
Output Overvoltage Protection (OVP)
7.3.14
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Normal Operation
7.4.2
Eco-mode Operation
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
TPS54202 8-V to 28-V Input, 5-V Output Converter
8.2.2
Design Requirements
8.2.3
Detailed Design Procedure
8.2.3.1
Input Capacitor Selection
8.2.3.2
Bootstrap Capacitor Selection
8.2.3.3
Output Voltage Set Point
8.2.3.4
Undervoltage Lockout Set Point
8.2.3.5
Output Filter Components
8.2.3.5.1
Inductor Selection
8.2.3.5.2
Output Capacitor Selection
8.2.3.5.3
Feed-Forward Capacitor
8.2.4
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
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDC|6
MPDS124I
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsd26b_oa
slvsd26b_pm
6.2
ESD Ratings
VALUE
UNIT
V
(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
(1)
±4000
V
Charged-device model (CDM), per JEDEC specification JESD22-C101
(2)
±1500
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2)
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.