SBVS257
March 2025
TPS7A56
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
Output Voltage Setting and Regulation
6.3.2
Low-Noise, Ultra-High Power-Supply Rejection Ratio (PSRR)
6.3.3
Programmable Soft-Start (NR/SS Pin)
6.3.4
Precision Enable and UVLO
6.3.5
Charge Pump Enable and BIAS Rail
6.3.6
Power-Good Pin (PG Pin)
6.3.7
Active Discharge
6.3.8
Thermal Shutdown Protection (TSD)
6.4
Device Functional Modes
6.4.1
Normal Operation
6.4.2
Dropout Operation
6.4.3
Disabled
6.4.4
Current-Limit Operation
7
Application and Implementation
7.1
Application Information
7.1.1
Precision Enable (External UVLO)
7.1.2
Undervoltage Lockout (UVLO) Operation
7.1.2.1
IN Pin UVLO
7.1.2.2
BIAS UVLO
7.1.2.3
Typical UVLO Operation
7.1.2.4
UVLO(IN) and UVLO(BIAS) Interaction
7.1.3
Dropout Voltage (VDO)
7.1.4
Input and Output Capacitor Requirements (CIN and COUT)
7.1.5
Recommended Capacitor Types
7.1.6
Soft-Start, Noise Reduction (NR/SS Pin), and Power-Good (PG Pin)
7.1.7
Optimizing Noise and PSRR
7.1.8
Adjustable Operation
7.1.9
Load Transient Response
7.1.10
Charge Pump Operation
7.1.11
Sequencing
7.1.12
Power-Good Functionality
7.1.13
Paralleling for Higher Output Current and Lower Noise
7.1.14
Power Dissipation (PD)
7.1.15
Estimating Junction Temperature
7.1.16
TPS7A57EVM-056 Thermal Analysis
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.1.2
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
10.1
Mechanical Data
Package Options
Mechanical Data (Package|Pins)
RTE|16
MPQF149D
Thermal pad, mechanical data (Package|Pins)
RTE|16
QFND525B
Orderable Information
sbvs257_oa
sbvs257_pm
Data Sheet
TPS7A56 6A, Low-V
IN
, Low-Noise, High-Accuracy, Ultra-Low Dropout (LDO) Voltage Regulator