SLVSFU8C
January 2022 – June 2024
TPS62843
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Smart Enable and Shutdown (EN)
7.3.2
Soft Start
7.3.3
VSET Pin: Output Voltage Selection
7.3.4
Undervoltage Lockout (UVLO)
7.3.5
Switch Current Limit, Short-Circuit Protection
7.3.6
Thermal Shutdown
7.3.7
Output Voltage Discharge
7.4
Device Functional Modes
7.4.1
Power Save Mode Operation
7.4.2
100% Mode Operation
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
1
Features
1.8V to 5.5V input voltage range
0.4V to 3.6V output voltage range
275nA typical quiescent current
600mA output current
1% output voltage accuracy
4nA typical shutdown current
Output discharge
VSET pin-selectable output voltage through a single resistor
TPS628436: 0.4V to 0.8V
TPS628437: 0.8V to 1.8V
TPS628438: 1.8V to 3.6V
Designed for small passive components
1μH inductor
Down to effective capacitance of 4μF C
OUT
High PSRR (up to 83dB)
Low output voltage ripple in power save mode
RF-friendly and fast transient DCS-Control
Automatic transition to no ripple 100% mode
0603-inductor and 0402-capacitor size supported
Tiny 6-pin, 0.35mm pitch WCSP package with 0.84mm² size
Pin-to-pin compatible to the
TPS6280x
family (1A) in WCSP package
Available in a 1.60mm × 1.60mm SOT563 package