SNVSCU8
August 2026
REF53-Q1
ADVANCE INFORMATION
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
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 REF53-Q1
6.6
Typical Characteristics
7
Parameter Measurement Information
7.1
Temperature Drift
7.2
Long-Term Stability
7.3
Noise Performance
7.3.1
1/f Noise
7.3.2
Broadband Noise
7.4
Thermal Hysteresis
7.5
Solder Heat Shift
7.6
Power Dissipation
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
EN Pin
8.4
Device Functional Modes
8.4.1
Basic Connections
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Basic Voltage Reference Connection
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curves
9.2.2
Constant Current Reference
9.3
Power Supply Recommendation
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Documentation Support
10.1.1
Related Documentation
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
12.1
Tape and Reel Information
12.2
Mechanical Data
1
Features
Low temperature drift coefficient: 4ppm/°C maximum
Low quiescent current: 85μA typical
Low noise
0.1Hz to 10Hz: 3ppm
p-p
10Hz to 1kHz: 3ppm
rms
High accuracy: ±0.04% maximum
Small Size: SOT-23-THN-6 (DDC) package
Designed for a wide range of applications:
Wide input voltage up to 18V
Output current: +30mA/-10mA
Voltage options: 1.2V, 1.25V, 1.8V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, 4.5V, 5V
Fit for all design requirement:
Stable with 1μF to 50μF output low-ESR capacitor
High PSRR: 85dB at 1kHz
Specified temperature range: −40°C to +125°C
Operational temperature range: −55°C to +125°C