TPS62112

ACTIVE

5-V, 1.5-A, 17-V Vin Step-Down Converter in QFN-16

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Product details

Parameters

Vin (Min) (V) 3.1 Vin (Max) (V) 17 Vout (Min) (V) 5 Vout (Max) (V) 5 Iout (Max) (A) 1.5 Iq (Typ) (mA) 0.02 Iq (Typ) (uA) 20 Switching frequency (Min) (kHz) 900 Switching frequency (Max) (kHz) 1100 Features Enable, Forced PWM, Frequency Synchronization, Light Load Efficiency, Power Good, Synchronous Rectification Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN (RSA) 16 16 mm² 4 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • High-Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 3.1-V to 17-V Operating Input Voltage Range
  • Adjustable Output Voltage Range: 1.2 V to 16 V
  • Fixed Output Voltage Options Available in
    3.3 V and 5 V
  • Synchronizable to External Clock: Up to 1.4 MHz
  • Up to 1.5-A Output Current
  • High Efficiency Over a Wide Load-Current
    Range Due to PFM/PWM Operation Mode
  • 100% Maximum Duty Cycle for Lowest Dropout
  • 20-µA Quiescent Current (Typical)
  • Overtemperature and Overcurrent Protected
  • Available in 16-Pin VQFN Package
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Description

The TPS6211x devices are a family of low-noise synchronous step-down DC-DC converters that are ideally suited for systems powered from a 2- to 4-cell Li-ion battery or from a 12-V or 15-V rail.

The TPS6211x devices are synchronous pulse width modulation (PWM) converters with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve highest efficiency over a wide load-current range, the converter enters a power-saving, pulse frequency modulation (PFM) mode at light load currents. Operating frequency is typically 1 MHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 0.8 MHz to 1.4 MHz. For low-noise operation, the converter can be operated in PWM-only mode. In shutdown mode, the current consumption is reduced to less than 2 µA. The TPS6211x family of devices are available in the 16-pin (RSA) VQFN package, and operate over a free-air temperature range of –40°C to 85°C.

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TPS62135 ACTIVE 3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN Higher output current (4 A) or a smaller total solution size.
TPS62143 ACTIVE 3–17V 2A Step-Down Converter in 3x3 QFN package The product has the same functionality with a higher output current, improved efficiency, and a smaller solution size.
TPS62163 ACTIVE 3V-17V 1A Step-Down Converters with DCS-Control™ This product has the same functionality with smaller solution size.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS6211x 17-V, 1.5-A, Synchronous Step-Down Converter datasheet (Rev. E) Jun. 18, 2015
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application notes Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application notes Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application notes Optimizing Resistor Dividers at a Comparator (Rev. A) Jun. 03, 2013
Application notes Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011

Design & development

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

Hardware development

EVALUATION BOARDS Download
TPS62110 Evaluation Module
TPS62110EVM-101
document-generic User guide
49
Description

The TPS62110EVM-101 is an evaluation tool for the TPS6211x family of high efficiency inductive step-down converters in a 4x4 QFN package. They feature an adjustable or 3.3V and 5V fixed Output option, a maximum of 17V Input Voltage and up to 1.5A Output current. TPS6211x family can supply voltages (...)

Features
  • Input Voltage: 3.1V to 17V
  • Output Voltage: 1.2V to 16V (adj.)
  • Output Voltage: 3.3V (fixed)
  • Output Voltage: 5V (fixed)
  • 100% Maximum Duty Cycle for Lowest Dropout
  • 20-uA Quiescent Current (Typical)
  • Overtemperature and Overcurrent Protected
  • Available in 16-Pin QFN Package

Design tools & simulation

SIMULATION MODELS Download
SLVM330A.ZIP (61 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOLS Download
TPS6211x Family Low Battery Input Hysteresis Calculation Tool
TPS62113LBIH-CALC The TPS62213LBIH-CALC can be used to calculate the proper resistors values needed for the TPS62113 (TPS6211x: TPS62110, TPS62111, TPS62112, TPS62113) to attain the proper hysteresis on the low battery input for your application.

The low-battery input (LBI), available on several step-down converters (...)

CALCULATION TOOLS Download
SLVC532.ZIP (23 KB)
CAD/CAE SYMBOLS Download
SLVC533.ZIP (89 KB)
GERBER FILES Download
SLVC128A.ZIP (96 KB)
GERBER FILES Download
SLVC224.ZIP (191 KB)

CAD/CAE symbols

Package Pins Download
QFN (RSA) 16 View options

Ordering & quality

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