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TPS7A24 200-mA, 18-V, Ultra-Low IQ, Low-Dropout Voltage Regulator
SBVS386E
August 2019 – September 2022
TPS7A24
PRODUCTION DATA
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TPS7A24 200-mA, 18-V, Ultra-Low IQ, Low-Dropout Voltage Regulator
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
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Output Enable
7.3.2
Dropout Voltage
7.3.3
Current Limit
7.3.4
Undervoltage Lockout (UVLO)
7.3.5
Thermal Shutdown
7.3.6
Active Overshoot Pulldown Circuitry
7.4
Device Functional Modes
7.4.1
Device Functional Mode Comparison
7.4.2
Normal Operation
7.4.3
Dropout Operation
7.4.4
Disabled
8
Application and Implementation
8.1
Application Information
8.1.1
Adjustable Device Feedback Resistors
8.1.2
Recommended Capacitor Types
8.1.3
Input and Output Capacitor Requirements
8.1.4
Reverse Current
8.1.5
Feed-Forward Capacitor (CFF)
8.1.6
Power Dissipation (PD)
8.1.7
Estimating Junction Temperature
8.1.8
Special Consideration for Line Transients
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Transient Response
8.2.2.2
Selecting Feedback Divider Resistors
8.2.2.3
Thermal Dissipation
8.2.3
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Examples
9
Device and Documentation Support
9.1
Device Support
9.1.1
Device Nomenclature
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DBV|5
MPDS018T
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbvs386e_oa
sbvs386e_pm
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DATA SHEET
TPS7A24 200-mA, 18-V, Ultra-Low IQ, Low-Dropout Voltage Regulator
1
Features
Ultra-low I
Q
: 2.0 μA
Input voltage: 2.4 V to 18 V
Output voltage options available:
Fixed: 1.25 V to 5.5 V
Adjustable: 1.24 V to 17.75 V
1.25% accuracy over temperature
Low dropout: 250 mV (max) at 200 mA
Active overshoot pulldown protection
Thermal shutdown and overcurrent protection
Operating junction temperature: –40°C to +125°C
Stable with 1-µF output capacitors
Package: 5-pin SOT-23
2
Applications
Smoke and heat detectors
Thermostats
Motion detectors (PIR, uWave, and so forth)
Cordless power tools
Appliance battery packs
Electricity meters
Water meters