Datasheet REF3430 (Texas Instruments) - 9

REF3425, REF3430, REF3433, REF3440 , REF3450 www.ti.com
SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021
7.6 Typical Characteristics
at TA = 25°C, VIN = VEN = 12 V, IL = 0 mA, CL = 10 µF, CIN = 0.1 µF (unless otherwise noted) 74 73 A) 12V (µ 72 nt (%) re 71 lation t Cur pu en 5V Po sc 70 Quie 3.3V 69 3V 68 00 25 50 75 00 25 50 75 00 25 50 75 00 25 50 75 00 25 50 75 00 -40 -15 10 35 60 85 110 125 0. 0. 0. 0. 1. 1. 1. 1. 2. 2. 2. 2. 3. 3. 3. 3. 4. 4. 4. 4. 5. Temperature (°C) D001 D003 Drift (ppm/°C) (-40°C to 125°C)
Figure 7-1. Temperature Drift Figure 7-2. VIN vs IQ over Temperature
0.02 75 0.015 74.5 ) (% ) y 0.01 A 74 (µ urac t c 0.005 73.5 Ac 0 urren C 73 age olt -0.005 ent c 72.5 t V es pu -0.01 Qui 72 Out -0.015 71.5 -0.02 71 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 Temperature (°C) D002 Temperature (°C) D004
Figure 7-3. Output Voltage Accuracy vs Temperature Figure 7-4. Quiescent Current vs Temperature
-20 0.24 CL = 1uF 0.23 CL = 10uF (dB) -40 0.22 tio V) a 0.21 R 0.2 (ppm/ tion -60 ec ion 0.19 ej R 0.18 -80 egulat 0.17 upply R S 0.16 er Line -100 0.15 ow P 0.14 -120 0.13 10 100 1k 10k 100k -40 -20 0 20 40 60 80 100 120 140 Frequency (Hz) Temperature (°C) D005 D019
Figure 7-5. Power-Supply Rejection Ratio vs Frequency Figure 7-6. Line Regulation
Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: REF3425 REF3430 REF3433 REF3440 REF3450 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Recommended Operating Conditions 7.4 Thermal Information 7.5 Electrical Characteristics 7.6 Typical Characteristics 8 Parameter Measurement Information 8.1 Solder Heat Shift 8.2 Long-Term Stability 8.3 Thermal Hysteresis 8.4 Power Dissipation 8.5 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 Supply Voltage 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 9.4.1 EN Pin 9.4.2 Negative Reference Voltage 10 Application and Implementation 10.1 Application Information 10.2 Typical Application: Basic Voltage Reference Connection 10.2.1 Design Requirements 10.2.2 Detailed Design Procedure 10.2.2.1 Input and Output Capacitors 10.2.2.2 4-Wire Kelvin Connections 10.2.2.3 VIN Slew Rate Considerations 10.2.2.4 Shutdown/Enable Feature 10.2.3 Application Curves 11 Power Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Documentation Support 13.1.1 Related Documentation 13.2 Receiving Notification of Documentation Updates 13.3 Support Resources 13.4 Trademarks 13.5 Electrostatic Discharge Caution 13.6 Glossary 14 Mechanical, Packaging, and Orderable Information