SBVS447
January 2024
TPS7A20L
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 Diagram
6.3
Feature Description
6.3.1
Low Output Noise
6.3.2
Smart Enable
6.3.3
Dropout Voltage
6.3.4
Foldback Current Limit
6.3.5
Undervoltage Lockout (UVLO)
6.3.6
Thermal Shutdown
6.3.7
Active Discharge
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
Recommended Capacitor Types
7.1.2
Input and Output Capacitor Requirements
7.1.3
Load Transient Response
7.1.4
Undervoltage Lockout (UVLO) Operation
7.1.5
Power Dissipation (PD)
7.1.5.1
Estimating Junction Temperature
7.1.5.2
Recommended Area for Continuous Operation
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
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)
DQN|4
MPSS021E
Thermal pad, mechanical data (Package|Pins)
DQN|4
QFND355C
Orderable Information
sbvs447_oa
sbvs447_pm
5.6
Switching Characteristics
at operating temperature range (T
J
= –40℃ to +125℃), V
IN
= V
OUT(NOM)
+ 0.3 V or 1.6V, whichever is greater, V
EN
= 1.0 V, I
OUT
= 1 mA, C
IN
= 1 µF, C
OUT
= 1 µF (unless otherwise noted); all typical values are at T
J
= 25℃
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
STR
Start-up time
From V
EN
> V
EN(HI)
to V
OUT
= 95% of V
OUT(NOM)
750
1150
µs