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TPS732 Capacitor-Free, NMOS, 250mA, Low-Dropout Regulator With Reverse Current Protection
SBVS037Q
August 2003 – September 2024
TPS732
PRODUCTION DATA
CONTENTS
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TPS732 Capacitor-Free, NMOS, 250mA, Low-Dropout Regulator With Reverse Current Protection
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
Thermal Information
5.6
Electrical Characteristics
5.7
Switching Characteristics
5.8
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagrams
6.3
Feature Description
6.3.1
Output Noise
6.3.2
Internal Current Limit
6.3.3
Enable Pin and Shutdown
6.3.4
Dropout Voltage
6.3.5
Reverse Current
6.4
Device Functional Modes
6.4.1
Normal Operation With 1.7V ≤ VIN ≤ 5.5V and VEN ≥ 1.7V
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Input and Output Capacitor Requirements
7.2.2.2
Transient Response
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
Thermal Considerations
7.4.1.1.1
Power Dissipation
7.4.2
Layout Examples
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.1.1.1
Evaluation Modules
8.1.1.2
Spice Models
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
IMPORTANT NOTICE
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Data Sheet
TPS732 Capacitor-Free, NMOS, 250mA, Low-Dropout Regulator With Reverse Current Protection
1
Features
Stable with no output capacitor or any value or type of capacitor
Input voltage range: 1.7V to 5.5V
Ultra-low dropout voltage: 40mV typical at 250mA
Excellent load transient response—with or without optional output capacitor
NMOS topology provides low reverse leakage current
Low noise: 30μV
RMS
typical (10kHz to 100kHz)
0.5% initial accuracy
1% overall accuracy (line, load, and temperature)
Less than 1μA maximum I
Q
in shutdown mode
Thermal shutdown and specified min and max current limit protection
Available in multiple output voltage versions:
Fixed outputs of 1.2V to 5V
Adjustable outputs from 1.2V to 5.5V
Custom outputs available
2
Applications
Portable and battery-powered equipment
Post-regulation for switching supplies
Noise-sensitive circuitry such as VCOs
Point of load regulation for DSPs, FPGAs, ASICs, and microprocessors