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REF53-Q1 Datasheet(PDF) 4 Page - Texas Instruments

Part # REF53-Q1
Description  REF53-Q1, 4ppm/°C Maximum Drift, 3ppmp-p 1/f Noise, 85μA Current, 30mA Load Current, Precision Voltage Reference
PDF  28 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

REF53-Q1 Datasheet(HTML) 4 Page - Texas Instruments

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5 Pin Configuration and Functions
IN
REF_F
GND
EN
NC
1
2
3
4
REF_S
5
6
Not to scale
Figure 5-1. DDC
6-Pin THIN SOT23
Top View
REF
DNC
IN
TEMP
GND
EN
1
2
3
6
5
4
NC
NC
7
8
Not to scale
Figure 5-2. D, DGK
8-Pin SOIC, VSSOP
Top View
Table 5-1. Pin Functions
PIN
TYPE
DESCRIPTION
NAME
DDC
D, DGK
NC
1
5,7
No Connect
Not internally connected. Pin can be left floating or connected to
GND.
GND
2
4
Ground
Ground connection.
EN
3
1
Input
Device enable control. Low level input disables the reference
output and device enters shutdown mode. Device can be
enabled by driving voltage > 1.6V or leaving the EN pin floating.
IN
4
2
Power
Input supply voltage connection. Connect a minimum 0.1μF
decoupling capacitor to ground for the best performance.
REF_S
5
Output
Reference voltage output sense connection. Connect it to
REF_F near the load.
REF_F
6
Output
Reference voltage output force connection. Connect a capacitor
between from 1μF to 50μF to ground for best performance.
TEMP
3
Output
Temperature monitoring pin. Provides a temperature-dependent
output voltage
REF
6
Output
Reference voltage output. Connect a capacitor between from
1μF to 50μF to ground for best performance.
DNC
8
Do not Connect
Leave the pin floating
REF53-Q1
SNVSCU8 – AUGUST 2026
www.ti.com
4
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Copyright © 2026 Texas Instruments Incorporated
Product Folder Links: REF53-Q1



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