SBVS477A
May 2025 – July 2025
TPS7B4259-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Tracker Output Voltage (VOUT)
6.3.1.1
Output Voltage Equal to Reference Voltage
6.3.1.2
Output Voltage Less Than the Reference Voltage
6.3.2
Reverse Current Protection
6.3.3
Power Good
6.3.4
Undervoltage Lockout
6.3.5
Thermal Protection
6.3.6
Current Limit
6.3.7
Output Short to Battery
6.4
Device Functional Modes
6.4.1
Normal Operation
6.4.2
Dropout Operation
6.4.3
Operation With VIN < 3.3V
6.4.4
Disable With ADJ and EN Controls
7
Application and Implementation
7.1
Application Information
7.1.1
Dropout Voltage
7.1.2
Reverse Current
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Input and Output Capacitor Selection
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
Package Mounting
7.4.1.2
Board Layout Recommendations to Improve PSRR and Noise Performance
7.4.1.3
Power Dissipation and Thermal Considerations
7.4.1.4
Thermal Performance Versus Copper Area
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Device Nomenclature
8.2
Documentation Support
8.2.1
Related Documentation
8.3
Receiving Notification of Documentation Updates
8.4
Support Resources
8.5
Trademarks
8.6
Electrostatic Discharge Caution
8.7
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDA|8
MPDS092F
Thermal pad, mechanical data (Package|Pins)
DDA|8
PPTD058I
Orderable Information
sbvs477a_oa
sbvs477a_pm
Data Sheet
TPS7B4259-Q1
Automotive, 150mA, 40V, Voltage Tracking LDO With PG