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TPS62830x, 2.25V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy in Small WQFN and SOT583 Packages
SLVSG98B
February 2023 – March 2024
TPS628301
,
TPS628302
,
TPS628303
,
TPS628304
PRODUCTION DATA
CONTENTS
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TPS62830x, 2.25V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy in Small WQFN and SOT583 Packages
1
1
Features
2
Applications
3
Description
4
Device Options
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 Discrete
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
Pulse Width Modulation (PWM) Operation
7.3.2
Power Save Mode (PSM) Operation
7.3.3
Start-Up and Soft Start
7.3.4
Switch Cycle-by-Cycle Current Limit
7.3.5
Short-Circuit Protection
7.3.6
Undervoltage Lockout
7.3.7
Thermal Shutdown
7.3.8
Optimized EMI Performance
7.4
Device Functional Modes
7.4.1
Enable, Disable, and Output Discharge
7.4.2
Minimum Duty Cycle and 100% Mode Operation
7.4.3
Power Good
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
Custom Design With WEBENCH® Tools
8.2.2.2
Setting The Output Voltage
8.2.2.3
Inductor Selection
8.2.2.4
Output Capacitor Selection
8.2.2.5
Input Capacitor Selection
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
8.4.2.1
Thermal Considerations
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.1.2
Development Support
9.1.2.1
Custom Design With WEBENCH® Tools
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RZE|8
MPQF677
DRL|8
MPCS002F
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsg98b_oa
slvsg98b_pm
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Data Sheet
TPS62830x, 2.25V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy in Small WQFN and SOT583 Packages
1
Features
2.25V to 5.5V input voltage range
0.5V to 4.5V adjustable output voltage
1% FB voltage accuracy (–40°C to 125°C T
J
)
Optimized EMI performance
Facilitates CISPR 11/32 compliance
Integrated on-chip noise-filtering capacitors
Measurements according to CISPR available
Excellent transient response
7µA operating quiescent current
2.0MHz switching frequency
35mΩ and 18mΩ internal power MOSFETs
DCS-Control topology
MODE pin for conduction mode selection
Supports 1.2V GPIO
100% duty cycle for lowest dropout
Active output discharge
Power-good output
Thermal shutdown protection
Hiccup or latch-off OCP/OVP
SIMPLIS model available
Create a custom design using the
TPS62830x
with
WEBENCH® Power Designer
