TPS3839K33DBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock

Name: TPS3839K33DBZR
Brand: Texas Instruments
SKU: TPS3839K33DBZR
Availability: InStock

The TPS3839K33DBZR is an ultra-low-power supply voltage supervisor from Texas Instruments with a fixed 3.3V reset threshold and ±2% accuracy, drawing only about 150 nA of quiescent current. Housed in a compact 3-pin SOT23 package, it is used for single-channel power-on reset and brownout detection in battery-powered systems.

ACTIVEIntegrated CircuitVerified Jul 2026

Package / Visual Reference

TPS3839K33DBZRSOT23 (3-Pin)

Quick Facts

Manufacturer: Texas Instruments
Package: SOT23 (3-Pin)
Pin Count: 3
Lifecycle: ACTIVE
Datasheet: TPS3839K33DBZR Datasheet PDF
Category: Integrated Circuit
Price: From $0.2638(MOQ 250)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of TPS3839K33DBZR?

Fixed 3.3 V reset threshold with ±2% accuracy
Ultra-low quiescent current of about 150 nA
Single-channel voltage supervision
Compact 3-pin SOT23 package
Non-adjustable threshold for simplified design
Reliable power-on reset and brownout detection

What is TPS3839K33DBZR used for?

The TPS3839K33DBZR is used to monitor a 3.3 V supply rail and generate a reset signal during power-on, brownout, or undervoltage events in battery-powered and portable equipment. Its ultra-low quiescent current of about 150 nA makes it well suited for energy-harvesting nodes, wearables, and other always-on systems where standby power must be minimized.

What are the specifications of TPS3839K33DBZR?

Pbfree Code	Yes
YTEOL	15
Adjustable Threshold	NO
Analog IC - Other Type	VOLTAGE SUPERVISOR/RESET IC
JESD-30 Code	R-PDSO-G3
JESD-609 Code	e4
Number of Channels	1
Number of Functions	1
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TO-236
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max (Isup)	0.0005mA
Supply Voltage-Max (Vsup)	6.5V
Supply Voltage-Min (Vsup)	0.9V
Surface Mount	YES
Temperature Grade	INDUSTRIAL
Terminal Finish	Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)
Terminal Form	GULL WING
Terminal Pitch	0.95mm
Terminal Position	DUAL
Threshold Voltage-Nom	+2.93V
Time@Peak Reflow Temperature-Max (s)	30
Package	SOT23 (3-Pin)

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.90

Where can I find the TPS3839K33DBZR datasheet?

TPS3839K33DBZR Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for TPS3839K33DBZR?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How accurate is the TPS3839K33DBZR's fixed voltage threshold?

The TPS3839K33DBZR monitors a fixed 3.3 V supply rail with ±2% threshold accuracy while drawing only about 150 nA of quiescent current, making it well suited for precise brownout detection in battery-powered systems.

How small is the SOT23 footprint used by the TPS3839K33DBZR supervisor?

The TPS3839K33DBZR is housed in a compact 3-pin SOT23 package that occupies minimal board area while still providing a single-channel reset output for a 3.3 V monitored rail in space-constrained designs.

What does the R suffix indicate for sourcing the TPS3839K33DBZR in production runs?

The R suffix on the TPS3839K33DBZR denotes tape-and-reel packaging, typically supplied in reels of 3000 units in the 3-pin SOT23 format, giving contract manufacturers a steady supply of this 150 nA voltage supervisor for automated assembly.

Which always-on systems benefit most from the TPS3839K33DBZR's ultra-low quiescent current?

Because the TPS3839K33DBZR draws only about 150 nA while supervising a 3.3 V rail, it is commonly used in energy-harvesting sensor nodes, coin-cell-powered wearables, and other always-on battery systems that need power-on reset without draining standby current.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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AvailabilityIn Stock

Reference Price (USD)

From $0.2638

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
250+	$0.3670	$91.76
500+	$0.3508	$175.40
705+	$0.2852	$201.07
915+	$0.2745	$251.17
1140+	$0.2638	$300.73

pcs

Unit price: $0.3670 · Total: $91.76

In Stock · 24h Response · Worldwide Shipping

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”

James Wright

Supply Chain Director, CircuitPro Ltd, UK

TPS3839K33DBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock

What are the key features of TPS3839K33DBZR?

What is TPS3839K33DBZR used for?

What are the specifications of TPS3839K33DBZR?

Compliance & Regulatory

Where can I find the TPS3839K33DBZR datasheet?

What are equivalent replacements for TPS3839K33DBZR?

Frequently Asked Questions

How accurate is the TPS3839K33DBZR's fixed voltage threshold?

How small is the SOT23 footprint used by the TPS3839K33DBZR supervisor?

What does the R suffix indicate for sourcing the TPS3839K33DBZR in production runs?

Which always-on systems benefit most from the TPS3839K33DBZR's ultra-low quiescent current?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

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