TPS62840

DSBGA (YBG)

6

1 mm² 1.508 x 1.008

HVSSOP (DGR)

8

—

VSON-HR (DLC)

8

3 mm² 1.5 x 2

60-nA operating quiescent current
100% duty-cycle mode with 120-nA I_Q
Input voltage range V_IN from 1.8 V to 6.5 V
Output current up to 750 mA
RF friendly DCS-Control™
80% efficiency at 1 µA I_OUT (3.6 V_IN to 1.8 V_OUT)
16 selectable output voltages via VSET pin
Auto transition PFM/PWM or forced-PWM mode
Selectable forced PWM and STOP modes
Output discharge function
25-nA shutdown current
SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages

60-nA operating quiescent current
100% duty-cycle mode with 120-nA I_Q
Input voltage range V_IN from 1.8 V to 6.5 V
Output current up to 750 mA
RF friendly DCS-Control™
80% efficiency at 1 µA I_OUT (3.6 V_IN to 1.8 V_OUT)
16 selectable output voltages via VSET pin
Auto transition PFM/PWM or forced-PWM mode
Selectable forced PWM and STOP modes
Output discharge function
25-nA shutdown current
SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages

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 I_Q in 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.

The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.

The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO₂, or 1S Li-Ion/Li-SOCl₂.

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 I_Q in 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.

The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.

The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO₂, or 1S Li-Ion/Li-SOCl₂.

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Technical documentation

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	Type	Title	Date
*	Data sheet	TPS62840 1.8-V to 6.5-V, 750-mA, 60-nA IQ Step-Down Converter datasheet (Rev. D)	27 Apr 2020
	White paper	Overcoming Low-IQ Challenges in Low-Power Applications (Rev. A)	15 Sep 2021
	Application note	High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision (Rev. A)	30 Jul 2021
	Application note	A Topical Index of TI Low Power Buck DC/DC Application Notes (Rev. A)	25 Jun 2021
	User guide	TPS62841-2EVM123 EVM User's Guide (Rev. A)	03 Jun 2021
	Application note	Extend Battery Life with <100 nA IQ Buck Converter Achieving <150 µV Voltage Rip (Rev. A)	07 May 2021
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)	08 Apr 2021
	White paper	克服低功耗應用中的低 IQ 挑戰	11 Mar 2021
	White paper	저전력 애플리케이션의 저 IQ 문제점 극복	11 Mar 2021
	Technical article	Advantages of the STOP function for low-noise data-acquisition applications	31 Mar 2020
	White paper	Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies	14 Oct 2019
	User guide	TPS62842EVM-103 User's Guide	28 Aug 2019
	Technical article	Do all rails need low Iq?	15 Jul 2019
	Technical article	Deciphering low Iq: Using WEBENCH® to design near 100% duty-cycle for ultra-low power applications	15 Jul 2019
	User guide	TPS62840-1YBGEVM56 User's Guide	24 May 2019
	User guide	TPS62840-1DLCEVM55 User's Guide	15 May 2019
	Technical article	Minimize the impact of the MLCC shortage on your power application	29 Mar 2019
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)	11 Dec 2018
	Application note	QFN and SON PCB Attachment (Rev. B)	24 Aug 2018
	Application note	Understanding 100% mode in low-power DC/DC converters	22 Jun 2018
	Application note	Achieving a clean startup by using a DC/DC converter with a precise enable-pin t	24 Oct 2017
	Application note	Testing tips for applying external power to supply outputs without an input volt	24 Oct 2016
	Application note	Understanding frequency variation in the DCS-Control(TM) topology	30 Oct 2015
	Application note	Basic Calculation of a Buck Converter's Power Stage (Rev. B)	17 Aug 2015
	Application note	Five steps to a great PCB layout for a step-down converter	29 Jan 2015
	Application note	Accurately measuring efficiency of ultralow-IQ devices	22 Jan 2014
	Application note	High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions	25 Jul 2013
	Application note	How to Measure the Control Loop of DCS-Control Devices (Rev. A)	09 Aug 2012
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)	13 Jan 2012
	Application note	Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs	19 Sep 2011
	Application note	IQ: What it is, what it isn’t, and how to use it	17 Jun 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS62840-1DLCEVM55 — 60-nA IQ, QFN package, high-efficiency 750-mA step-down converters evaluation module (2 circuits)

The TPS62840-1DLCEVM55 evaluation module (EVM) facilitates the evaluation of the TPS6284XDLC family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 2.0-mm QFN packages. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from higher input voltages (...)

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Evaluation board

TPS62840-1YBGEVM56 — 60-nA IQ, WCSP package, high-efficiency 750-mA step-down converters evaluation module (2 circuits)

The TPS62840-1YBGEVM056 evaluation module (EVM) facilitates the evaluation of the TPS6284XYBG family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 1-mm WCSP packages with 0.4-mm pitch. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from (...)

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Evaluation board

TPS62841-2EVM123 — TPS62841 and TPS62842 60-nA IQ, DGR package, 750-mA buck converters evaluation module (2 circuits)

The TPS62841-2EVM123 evaluation module (EVM) facilitates the evaluation of the TPS6284XDGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains two separate circuits to create output voltages between 0.8 V and 3.6 V from higher input voltages (...)

In stock

Limit: 5

Evaluation board

TPS62842EVM-103 — 60-nA IQ, DGR package, high efficiency 750-mA step-down converter evaluation module

The TPS62842EVM-103 evaluation module (EVM) facilitates the evaluation of the TPS62842DGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains a circuit to convert output voltages between 1.8 V and 3.6 V from higher input voltages between 1.8 V and (...)

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Limit: 5

Simulation model

TPS62840 PSpice Unencrypted Transient Model (Rev. C)

SLUM691C.ZIP (83 KB) - PSpice Model

Simulation model

TPS62842 PSpice Transient Model

SLVMD74.ZIP (92 KB) - PSpice Model

Simulation model

TPS62841 PSPICE Model

SLVMD75.ZIP (98 KB) - PSpice Model

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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Gerber file

BSR055 Gerbers

SLVC773.ZIP (452 KB)

Gerber file

BSR056 Gerbers

SLVC774.ZIP (445 KB)

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