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TPS62801YKAT
Integrated Circuits (ICs)

TPS62801YKAR

Active
Texas Instruments

1.75-V TO 5.5-V INPUT, 1-A ULTRA-LOW IQ STEP-DOWN CONVERTER IN 0.7-MM X 1.05-MM CHIP SCALE PACKAGE

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TPS62801YKAT
Integrated Circuits (ICs)

TPS62801YKAR

Active
Texas Instruments

1.75-V TO 5.5-V INPUT, 1-A ULTRA-LOW IQ STEP-DOWN CONVERTER IN 0.7-MM X 1.05-MM CHIP SCALE PACKAGE

Technical Specifications

Parameters and characteristics for this part

SpecificationTPS62801YKAR
Current - Output1 A
Frequency - Switching4 MHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]125 ¯C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable (Fixed)
Package / Case6-XFBGA, DSBGA
Supplier Device Package6-DSBGA (1.05x0.70)
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]5.5 V
Voltage - Input (Min) [Min]1.8 V
Voltage - Output (Max) [Max]1.55 V
Voltage - Output (Min/Fixed)0.8 V
Voltage - Output (Min/Fixed)1.2 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$ 1.65
10$ 1.47
25$ 1.40
100$ 1.15
250$ 1.07
500$ 0.95
1000$ 0.75
Digi-Reel® 1$ 1.65
10$ 1.47
25$ 1.40
100$ 1.15
250$ 1.07
500$ 0.95
1000$ 0.75
Tape & Reel (TR) 3000$ 0.70
6000$ 0.66
15000$ 0.64
Texas InstrumentsLARGE T&R 1$ 1.22
100$ 0.94
250$ 0.69
1000$ 0.49

Description

General part information

TPS62801 Series

The TPS6280x device family is a step-down converter with 2.3µA typical quiescent current featuring the highest efficiency and smallest design size. TI’s DCS-Control topology enables the device to operate with tiny inductors and capacitors with a switching frequency up to 4MHz. At light load conditions, the device seamlessly enters power save mode to reduce switching cycles and maintain high efficiency.

Connecting the VSEL/MODE pin to GND selects a fixed output voltage. With only one external resistor connected to VSEL/MODE pin, 16 internally set output voltages can be selected. An integrated R2D (resistor-to-digital) converter reads out the external resistor and sets the output voltage. The same device part number can be used for different applications and voltage rails just by changing a single resistor. Furthermore, the internally set output voltage provides better accuracy compared to a traditional external resistor divider network. After the device has started up, the DC/DC converter enters forced PWM mode by applying a high level at the VSEL/MODE pin. In this operating mode, the device runs at a typical 4MHz or 1.5MHz switching frequency, enabling lowest output voltage ripple and highest efficiency. The TPS6280x device series comes in a tiny 6-pin WCSP package with 0.35mm pitch.

The TPS6280x device family is a step-down converter with 2.3µA typical quiescent current featuring the highest efficiency and smallest design size. TI’s DCS-Control topology enables the device to operate with tiny inductors and capacitors with a switching frequency up to 4MHz. At light load conditions, the device seamlessly enters power save mode to reduce switching cycles and maintain high efficiency.

Documents

Technical documentation and resources

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

Analog Design Journal

Buck Converter Quick Reference Guide (Rev. B)

Selection guide

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

Analog Design Journal

Performing Accurate PFM Mode Efficiency Measurements (Rev. A)

Application note

Design a 3A power supply smaller than a 1608-size resistor

Technical article

Intro to Multi-Function Pins and Their Applications in TI Step-Down Converters (Rev. A)

Application note

TPS62800EVM-892 Evaluation Module (Rev. B)

EVM User's guide

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

Analog Design Journal

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

Analog Design Journal

Accurately measuring efficiency of ultralow-IQ devices

Analog Design Journal

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

Application note

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

Analog Design Journal

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

Application note

TPS6280x 1.75V to 5.5V, 0.6A/1A, 2.3µA IQ Step-Down Converter 6-Pin, 0.35mm Pitch WCSP Package datasheet (Rev. G)

Data sheet

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

Analog Design Journal

Enabling Higher Data Rates for Optical Modules With Small and Efficient Power

White paper

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

Application note

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

Analog Design Journal

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

Application note

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

White paper