SLUSDA4B
February 2019 – October 2019
TPS562231
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
TPS562231 Efficiency
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
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
Adaptive On-Time Control and PWM Operation
7.3.2
Soft Start and Pre-Biased Soft Start
7.3.3
Over Current and Short Circuit Protection
7.3.4
Undervoltage Lockout (UVLO) Protection
7.3.5
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Continuous Conduction Mode (CCM)
7.4.3
Pulse Skip Mode (PSM, TPS562231)
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
Output Voltage Resistors Selection
8.2.2.2
Output Filter Selection
8.2.2.3
Input Capacitor Selection
8.2.2.4
Bootstrap Capacitor Selection
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
11.2
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
1
Features
2-A converter integrated 95-mΩ and 55-mΩ FETs
D-CAP3™ Mode Control with fast transient response
Input voltage range: 4.5 V to 17 V
Output voltage range: 0.6 V to 7 V
Pulse skip mode
850-kHz switching frequency
Low shutdown current less than 2 µA (typical)
2% feedback voltage accuracy (25ºC)
Startup from pre-biased output voltage
Cycle-by-cycle over current limit
Hiccup-mode over current protection
Non-latch UVP and TSD protections
6-pin SOT563 package
Precision enable
Pin-to-pin compatible with TPS563231