Adjustable, 800-mA, 10V Vin, 95% Efficient Step-Down Converter in MSOP-10


Product details


Vin (Min) (V) 2.7 Vin (Max) (V) 10 Vout (Min) (V) 0.7 Vout (Max) (V) 6 Iout (Max) (A) 0.8 Iq (Typ) (uA) 12 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 1200 Features Enable, Frequency Synchronization, Light Load Efficiency, Power Good, Synchronous Rectification, Over Current Protection Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Buck converters (integrated switch)


  • High-Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 12-µA Quiescent Current (Typical)
  • 2.7-V to 10-V Operating Input Voltage Range
  • Adjustable Output Voltage Range: 0.7 V to 6 V
  • Fixed Output Voltage Options Available With
    1.5 V, 1.8 V, and 3.3 V
  • Synchronizable to External Clock: Up to 1.2 MHz
  • High-Efficiency Over a Wide Load Current Range
    in Power-Save Mode
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Low-Noise Operation in Forced Fixed-
    Frequency PWM Operation Mode
  • Internal Softstart
  • Overtemperature and Overcurrent Protected
  • Available in 10-Pin Micro-Small Outline
    Package MSOP
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The TPS6205x devices are a family of high-efficiency synchronous step-down DC-DC converters that are ideally suited for systems powered from a 1- or 2-cell Li-Ion battery or from a 3- to 5-cell NiCd, NiMH, or alkaline battery.

The TPS6205x devices are synchronous pulse width modulation (PWM) converters with integrated N- and P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces 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 850 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 600 kHz to 1.2 MHz. For low noise operation, the converter can be programmed into forced-fixed frequency in PWM mode. In shutdown mode, the current consumption is reduced to less than 2 µA. The TPS6205x devices are available in the 10-pin (DGS) micro-small outline package (MSOP) and operates 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
* Datasheet TPS6205x 800-mA Synchronous Step-Down Converter datasheet (Rev. F) Jun. 26, 2015
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note Optimizing Resistor Dividers at a Comparator (Rev. A) Jun. 03, 2013
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
User guide TPS6205xEVM User's Guide Feb. 12, 2003

Design & development

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Hardware development

TPS62050 Evaluation Module
document-generic User guide

The TPS62050EVM-234 is an evaluation tool for the TPS62050 95% efficient, 800-mA inductive step-down converter in MSOP-10, which can supply voltages down to 0.7V from a 2.7-V to 10-V input. The TPS62050EVM-234 uses a TPS62050 adjustable output step-down converter and the appropriate feedback (...)

TPS62052 Evaluation Module
document-generic User guide

The TPS62052EVM-234 is an evaluation tool for the TPS62052 95% efficient, 800-mA inductive step-down converter in MSOP-10, which supplies a fixed voltage of 1.5V from a 2.7-V to 10-V input. The TPS62052EVM-234 uses a TPS62052 fixed output voltage step-down converter to provide a 1.5-V output (...)

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VSSOP (DGS) 10 View options

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