SBVS295A
November 2019 – March 2020
TPS7A52
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Powering RF Components
Powering Digital Loads
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
Voltage Regulation Features
7.3.1.1
DC Regulation
7.3.1.2
AC and Transient Response
7.3.2
System Start-Up Features
7.3.2.1
Programmable Soft Start (NR/SS Pin)
7.3.2.2
Internal Sequencing
7.3.2.2.1
Enable (EN)
7.3.2.2.2
Undervoltage Lockout (UVLO) Control
7.3.2.2.3
Active Discharge
7.3.2.3
Power-Good Output (PG)
7.3.3
Internal Protection Features
7.3.3.1
Foldback Current Limit (ICL)
7.3.3.2
Thermal Protection (Tsd)
7.4
Device Functional Modes
7.4.1
Regulation
7.4.2
Disabled
7.4.3
Current Limit Operation
8
Application and Implementation
8.1
Application Information
8.1.1
Recommended Capacitor Types
8.1.1.1
Input and Output Capacitor Requirements (CIN and COUT)
8.1.1.2
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.1.3
Feed-Forward Capacitor (CFF)
8.1.2
Soft Start and Inrush Current
8.1.3
Optimizing Noise and PSRR
8.1.4
Charge Pump Noise
8.1.5
Current Sharing
8.1.6
Adjustable Operation
8.1.7
Power-Good Operation
8.1.8
Undervoltage Lockout (UVLO) Operation
8.1.9
Dropout Voltage (VDO)
8.1.10
Device Behavior During Transition From Dropout Into Regulation
8.1.11
Load Transient Response
8.1.12
Reverse Current Protection Considerations
8.1.13
Power Dissipation (PD)
8.1.14
Estimating Junction Temperature
8.1.15
TPS7A52EVM Thermal Analysis
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Board Layout
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
Evaluation Modules
11.1.2
Device Nomenclature
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Receiving Notification of Documentation Updates
11.4
Community Resources
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RPS|12
MPQF552
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbvs295a_oa
sbvs295a_pm
8.2.3
Application Curves
Figure 41.
PSRR vs Frequency and I
OUT
for V
OUT
= 5.0 V
Figure 42.
PSRR vs Frequency and V
IN
for V
OUT
= 5.0 V at I
OUT
= 4.0 A