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8 WSON
Integrated Circuits (ICs)

TPS62170DSGT

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Texas Instruments

3–17V 0.5A STEP-DOWN CONVERTER WITH DCS-CONTROL IN 2X2 QFN PACKAGE

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8 WSON
Integrated Circuits (ICs)

TPS62170DSGT

Active
Texas Instruments

3–17V 0.5A STEP-DOWN CONVERTER WITH DCS-CONTROL IN 2X2 QFN PACKAGE

Technical Specifications

Parameters and characteristics for this part

SpecificationTPS62170DSGT
Current - Output500 mA
Frequency - Switching2.25 MHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case8-WFDFN Exposed Pad
Supplier Device Package8-WSON (2x2)
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]17 V
Voltage - Input (Min) [Min]3 V
Voltage - Output (Min/Fixed)0.9 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$ 1.79
10$ 1.61
25$ 1.52
100$ 1.29
Digi-Reel® 1$ 1.79
10$ 1.61
25$ 1.52
100$ 1.29
Tape & Reel (TR) 250$ 1.21
500$ 1.06
1250$ 0.88
2500$ 0.82
6250$ 0.79
12500$ 0.76
Texas InstrumentsSMALL T&R 1$ 1.48
100$ 1.14
250$ 0.84
1000$ 0.60

Description

General part information

TPS62170-Q1 Series

The TPS6217x-Q1 family is an easy to use synchronous step-down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control topology.

With their wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12-V intermediate power rails. It supports up to 0.5-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).

Power sequencing is also possible by configuring the Enable and open-drain Power Good pins.

Documents

Technical documentation and resources

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

Analog Design Journal

Low-Noise CMOS Camera Supply

Application note

How to design an infrared thermometer quickly

Technical article

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

Analog Design Journal

Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D)

Application note

TPS6217x 3-V to 17-V, 0.5-A Step-Down Converters with DCS-Control™ datasheet (Rev. E)

Data sheet

Step-Down Converter With Input Overvoltage Protection

Application note

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

Application note

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

Analog Design Journal

QFN and SON PCB Attachment (Rev. C)

Application note

Performing Accurate PFM Mode Efficiency Measurements (Rev. A)

Application note

Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C)

Application note

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

Analog Design Journal

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

Application note

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

Analog Design Journal

Optimizing the TPS62130/40/50/60 Output Filter (Rev. A)

Application note

Design considerations for a resistive feedback divider in a DC/DC converter

Analog Design Journal

Power Management Guide 2018 (Rev. R)

Selection guide

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

Analog Design Journal

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

Application note

TPS621x0 Buck Converter Evaluation Module User's Guide (Rev. A)

EVM User's guide

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

Analog Design Journal

Methods of output-voltage adjustment for DC/DC converters

Analog Design Journal

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

Application note

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

Application note

Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A)

Application note

Buck Converter Quick Reference Guide (Rev. B)

Selection guide