SBVS291C
April 2017 – December 2020
TPS7A84A
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
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
6.5
Electrical Characteristics: General
6.6
Electrical Characteristics: TPS7A8400A
6.7
Electrical Characteristics: TPS7A8401A
6.8
Typical Characteristics: TPS7A8400A
6.9
Typical Characteristics: TPS7A8401A
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
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)
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
8
Application and Implementation
8.1
Application Information
8.1.1
External Component Selection
8.1.1.1
Adjustable Operation
8.1.1.2
ANY-OUT Programmable Output Voltage
8.1.1.3
ANY-OUT Operation
8.1.1.4
Increasing ANY-OUT Resolution for LILO Conditions
8.1.1.5
Current Sharing
8.1.1.6
Recommended Capacitor Types
8.1.1.7
Input and Output Capacitor Requirements (CIN and COUT)
8.1.1.8
Feed-Forward Capacitor (CFF)
8.1.1.9
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.2
Start-Up
8.1.2.1
Circuit Soft-Start Control (NR/SS)
8.1.2.1.1
Inrush Current
8.1.2.2
Undervoltage Lockout (UVLO)
8.1.2.3
Power-Good (PG) Function
8.1.3
AC and Transient Performance
8.1.3.1
Power-Supply Rejection Ratio (PSRR)
8.1.3.2
Output Voltage Noise
8.1.3.3
Optimizing Noise and PSRR
8.1.3.3.1
Charge Pump Noise
8.1.3.4
Load Transient Response
8.1.4
DC Performance
8.1.4.1
Output Voltage Accuracy (VOUT)
8.1.4.2
Dropout Voltage (VDO)
8.1.4.2.1
Behavior When Transitioning From Dropout Into Regulation
8.1.5
Sequencing Requirements
8.1.6
Negatively Biased Output
8.1.7
Reverse Current Protection
8.1.8
Power Dissipation (PD)
8.1.8.1
Estimating Junction Temperature
8.1.8.2
Recommended Area for Continuous Operation (RACO)
8.2
Typical Applications
8.2.1
Low-Input, Low-Output (LILO) Voltage Conditions
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
Evaluation Models
11.1.1.2
Spice Models
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Receiving Notification of Documentation Updates
11.4
Support Resources
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
Package Options
Mechanical Data (Package|Pins)
RGR|20
MPQF239A
Thermal pad, mechanical data (Package|Pins)
RGR|20
QFND242E
Orderable Information
sbvs291c_oa
sbvs291c_pm
8.1.1
External Component Selection