Product details

Vin (Min) (V) 3.1 Vin (Max) (V) 17 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Iout (Max) (A) 1.5 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
Vin (Min) (V) 3.1 Vin (Max) (V) 17 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Iout (Max) (A) 1.5 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
VQFN (RSA) 16 16 mm² 4 x 4
  • 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
  • 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

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.

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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Technical documentation

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Type Title Date
* Data sheet TPS6211x 17-V, 1.5-A, Synchronous Step-Down Converter datasheet (Rev. E) 18 Jun 2015
Application note Optimizing Resistor Dividers at a Comparator (Rev. B) 30 Apr 2021
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
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin t 24 Oct 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input volt 24 Oct 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 12 Jan 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
More literature Исходные проекты ll 13 May 2011
Analog Design Journal Practical considerations when designing a power supply with the TPS6211x 13 Feb 2006

Design & development

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

Evaluation board

TPS62110EVM-101 — TPS62110 Evaluation Module

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 (...)

Simulation model

TPS62111 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM329A.ZIP (61 KB) - PSpice Model
Simulation model

TPS62111 TINA-TI Transient Spice Model

SLVM700.ZIP (69 KB) - TINA-TI Spice Model
Simulation model

TPS62111 TINA-TI Transient Reference Design

SLVM701.TSC (779 KB) - TINA-TI Reference Design
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 (...)
Calculation tool

TPS62113LBIH-CALC — TPS6211x Family Low Battery Input Hysteresis Calculation Tool

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, (...)

Gerber file

Gerber Files for TPS6211xEVM (HPA346A)

SLVC224.ZIP (191 KB)
Package Pins Download
QFN (RSA) 16 View options

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