Datasheet TPS7A02 (Texas Instruments) - 7

TPS7A02 www.ti.com
SBVS277 – JULY 2019
Electrical Characteristics (continued)
Specified at TJ = –40°C to +125°C, VIN = VOUT(nom) + 0.5 V or 2.0 V (whichever is greater), IOUT = 1 mA, VEN = VIN, and CIN = COUT = 1 µF (unless otherwise noted). Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
EN pin logic high VEN(HI) 1.1 V voltage EN pin logic low VEN(LOW) 0.3 V voltage EN pin leakage IEN V current EN = VIN = 6.0 V 10 nA Smart enable REN(PULLDOWN) V pulldown resistor EN = 0.3 V 500 KΩ RPULLDOWN Pulldown resistor VIN = 3.3 V, device disabled 120 Ω Thermal shutdown TSD(shutdown) Shutdown, temperature increasing 175 temperature °C Thermal shutdown TSD(reset) Reset, temperature decreasing 155 reset temperature
6.6 Switching Characteristics
At VIN = VOUT +VDO(max) + 0.5 V, IOUT = 30 mA, andCIN = COUT = 1 µF (unless otherwise noted). Alltypical values are at TJ = 25°C.
TION PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
From EN assertion to V t OUT = 95% × VOUT(nom) , VOUT = STR Start-up time 400 1500 µs 1.8 V
ANCEINFORMA ADV
Copyright © 2019, Texas Instruments Incorporated Submit Documentation Feedback 7 Document Outline 1 Features 2 Applications 3 Description Table of Contents 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 Switching Characteristics 6.7 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Excellent Transient Response 7.3.2 Active Discharge (P-Version Only) 7.3.3 Low IQ in Dropout 7.3.4 Smart Enable 7.3.5 Dropout Voltage 7.3.6 Foldback Current Limit 7.3.7 Undervoltage Lockout (UVLO) 7.3.8 Thermal Shutdown 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 Recommended Capacitor Types 8.1.2 Input and Output Capacitor Requirements 8.1.3 Load Transient Response 8.1.4 Undervoltage Lockout (UVLO) Operation 8.1.5 Power Dissipation (PD) 8.1.5.1 Estimating Junction Temperature 8.1.5.2 Recommended Area for Continuous Operation 8.2 Typical Application 8.2.1 Design Requirements 8.2.2 Detailed Design Procedure 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Examples 11 Device and Documentation Support 11.1 Device Support 11.1.1 Device Nomenclature 11.2 Receiving Notification of Documentation Updates 11.3 Community Resources 11.4 Trademarks 11.5 Electrostatic Discharge Caution 11.6 Glossary 12 Mechanical, Packaging, and Orderable Information