BETAPIN 1 · Ground
Ground referenceGND
Function
Reference and bias return for the fixed 3.3 V regulator.
How to connect
Join input return, capacitor returns and load ground locally.
Electrical note
Lead 1. The tab is OUTPUT, not ground.
800 mA fixed-output linear regulator
TLV1117-33 Pinout
Explore TLV1117-33 pins, signal names, electrical functions and connection guidance for each package.
3Physical pins
TLV1117-33IKVURG3TO-252
Manufacturer-referencedTexas Instruments
Pin diagram
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TLV1117-33TO-252Front face · leads down · 1 GND, 2 OUT, 3 IN; tab OUT
Click a lead or use the arrow keys. Front face · leads down · 1 GND, 2 OUT, 3 IN; tab OUT
PIN 2 · Regulated output and tab
Regulated output and tabOUT
Function
Fixed 3.3 V output; also connected to the large exposed tab.
How to connect
Connect the load and output stability capacitor here.
Electrical note
Lead 2 and exposed thermal tab are one electrical node.
PIN 3 · Supply
Supply inputIN
Function
Input to the protected series-pass stage.
How to connect
Use +5 V with local ceramic bypass in the illustrated circuit.
Electrical note
Recommended 4.7–15 V for this output; allow dropout and ripple margin.