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Integrated Circuits (ICs)

TPS62849DLCR

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Texas Instruments

60-NA QUIESCENT CURRENT (IQ), 1.8-V TO 6.5-VIN, HIGH-EFFICIENCY 750-MA STEP-DOWN CONVERTER

VSON-HR
Integrated Circuits (ICs)

TPS62849DLCR

Active
Texas Instruments

60-NA QUIESCENT CURRENT (IQ), 1.8-V TO 6.5-VIN, HIGH-EFFICIENCY 750-MA STEP-DOWN CONVERTER

Technical Specifications

Parameters and characteristics for this part

SpecificationTPS62849DLCR
Current - Output750 mA
Frequency - Switching1.8 MHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]125 ¯C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output Type1.81 mOhm
Package / Case8-VFDFN
Supplier Device Package8-VSON-HR (2x1.5)
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]6.5 V
Voltage - Input (Min) [Min]1.8 V
Voltage - Output (Min/Fixed)3.4 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 1.36
10$ 1.23
25$ 1.16
100$ 0.98
250$ 0.92
500$ 0.81
Digi-Reel® 1$ 1.36
10$ 1.23
25$ 1.16
100$ 0.98
250$ 0.92
500$ 0.81
Tape & Reel (TR) 3000$ 0.81
Texas InstrumentsLARGE T&R 1$ 1.46
100$ 1.20
250$ 0.86
1000$ 0.65

Description

General part information

TPS62840 Series

The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQin 100% mode to further extend battery life near the end of discharge.

The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.

16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.

Documents

Technical documentation and resources

High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions

Analog Design Journal

Accurately measuring efficiency of ultralow-IQ devices

Analog Design Journal

Testing tips for applying external power to supply outputs without an input voltage

Analog Design Journal

How to Measure the Control Loop of DCS-Control Devices (Rev. A)

Application note

Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B)

Application note

TPS62840-1DLCEVM55 User's Guide

EVM User's guide

3 quiescent-current (Iq) specifications you need to understand

Technical article

克服低功耗應用中的低 IQ 挑戰 (Rev. B)

White paper

Overcoming Low-IQ Challenges in Low-Power Applications (Rev. B)

White paper

Basic Calculation of a Buck Converter's Power Stage (Rev. B)

Application note

IQ: What it is, what it isn’t, and how to use it

Analog Design Journal

Performing Accurate PFM Mode Efficiency Measurements (Rev. A)

Application note

Buck Converter Quick Reference Guide (Rev. B)

Selection guide

Understanding 100% mode in low-power DC/DC converters

Analog Design Journal

Deciphering low Iq: Using WEBENCH® to design near 100% duty-cycle for ultra-low po

Technical article

Never lose your luggage again with a smart tracker design

Technical article

Do all rails need low Iq?

Technical article

QFN and SON PCB Attachment (Rev. C)

Application note

저전력 애플리케이션의 저 IQ 문제점 극복 (Rev. B)

White paper

High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision (Rev. A)

Application note

Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)

Application note

TPS62840 1.8-V to 6.5-V, 750-mA, 60-nA IQ Step-Down Converter datasheet (Rev. D)

Data sheet

Using the TPS6284x in an Inverting Buck-Boost Topology

Application note

TPS62842EVM-103 User's Guide

EVM User's guide

Advantages of the STOP function for low-noise data-acquisition applications

Technical article

Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs

Application note

Extend Battery Life with <100 nA IQ Buck Converter Achieving <150 µV Voltage Rip (Rev. A)

Application note

TPS62841-2EVM123 EVM User's Guide (Rev. A)

EVM User's guide

Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold

Analog Design Journal

Understanding frequency variation in the DCS-Control(TM) topology

Analog Design Journal

Five steps to a great PCB layout for a step-down converter

Analog Design Journal

TPS62840-1YBGEVM56 User's Guide

EVM User's guide

Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies

White paper