Datasheet TPS7A02 (Texas Instruments) - 4

TPS7A02
SBVS277 – JULY 2019
www.ti.com YKA Package (Preview) 4-Pin 0.65-mm x 0.65-mm, 0.35-mm Pitch DSBGA Top View
EN VIN 2 GND VOUT 1 A B
Pin Functions: YKA PIN NAME YKA(1) I/O DESCRIPTION
Enable pin. Driving this pin to logic high enables the device; driving this pin to logic low disables EN A2 Input the device. If enable functionality is not required, this pin must be connected to IN. VEN must not exceed VIN. GND A1 — Ground pin. This pin must be connected to ground and the thermal pad.
ADV
Input pin. A 0.1-µF or greater effective capacitance is required from IN to ground to minimize IN B2 Input input impedance. For best transient response, use a 1-µF or larger ceramic capacitor from IN to ground. Place the input capacitor as close to input of the device as possible. Regulated output pin. A 0.5-µF or greater effective capacitance is required from OUT to ground
ANCEINFORMA
OUT B1 Output for stability. For best transient response, use a 1-µF or larger ceramic capacitor from OUT to ground. Place the output capacitor as close to output of the device as possible. (1) Preview package.
TION
4 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated 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