SBVS363B
December 2020 – November 2025
TPS7B87-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
Switching Characteristics
5.7
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagrams
6.3
Feature Description
6.3.1
Power-Good (PG)
6.3.2
Adjustable Power-Good Delay Timer (DELAY)
6.3.3
Undervoltage Lockout
6.3.4
Thermal Shutdown
6.3.5
Current Limit
6.4
Device Functional Modes
6.4.1
Device Functional Mode Comparison
6.4.2
Normal Operation
6.4.3
Dropout Operation
6.4.4
Disabled
7
Application and Implementation
7.1
Application Information
7.1.1
Input and Output Capacitor Selection
7.1.2
Dropout Voltage
7.1.3
Reverse Current
7.1.4
Power Dissipation (PD)
7.1.4.1
Thermal Performance Versus Copper Area
7.1.4.2
Power Dissipation Versus Ambient Temperature
7.1.5
Estimating Junction Temperature
7.1.6
Pulling Up the PG Pin to a Different Voltage
7.1.7
Power-Good
7.1.7.1
Setting the Adjustable Power-Good Delay
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Input Capacitor
7.2.2.2
Output Capacitor
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
7.4.2
Layout Examples
8
Device and Documentation Support
8.1
Device Support
8.1.1
Device Nomenclature
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
10.1
Mechanical Data
Data Sheet
TPS7B87-Q1
Automotive, 500mA, 40V, Low-Dropout Regulator
With Power-Good