4.7V to 60V Input, 200mA Synchronous Step-Down Converter with Low IQ


Product details


Vin (Min) (V) 4.7 Vin (Max) (V) 60 Vout (Min) (V) 0.8 Vout (Max) (V) 58 Iout (Max) (A) 0.2 Iq (Typ) (uA) 90 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1100 Features Enable, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Synchronous Rectification, UVLO Adjustable Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VSON (DRB) 8 9 mm² 3 x 3 open-in-new Find other Buck converters (integrated switch)


  • Integrated High-Side and Low-Side MOSFET
  • Diode Emulation for Improved Light Load
  • Peak Current Mode Control
  • 90-µA Operating Quiescent Current
  • 1.4-µA Shutdown Supply Current
  • 50-kHz to 1100-kHz Adjustable Switching
  • Synchronizes to External Clock
  • Internal Slow-Start
  • 0.8 V ±1% Voltage Reference
  • Stable With Ceramic Output Capacitors or Low-
    Cost Aluminum Electrolytic
  • Cycle-by-Cycle Current Limit, Thermal, OVP and
    Frequency Foldback Protection
  • VSON-8 Package, 3 mm × 3 mm With Thermal
  • –40°C to 150°C Operating Junction Temperature
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The TPS54061 device is a 60-V, 200-mA, synchronous step-down DC-DC converter with integrated high-side and low-side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 90 µA. Using the enable pin, shutdown supply current is reduced to 1.4 µA.

To increase light load efficiency the low-side MOSFET emulates a diode when the inductor current reaches zero.

Under voltage lockout is internally set at 4.5 V, but can be increased using two resistors on the enable pin. The output voltage startup ramp is controlled by the internal slow-start time.

The adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54061 enables small designs by integrating the MOSFETs, boot recharge diode, and minimizing the IC footprint with a small 3.00 mm × 3.00 mm thermally enhanced VSON package.

The TPS54061 is supported in the WEBENCH™ Designer at

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Technical documentation

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Type Title Date
* Data sheet TPS54061 Wide Input 60-V, 200-mA Synchronous Step-Down DC-DC Converter With Low IQ datasheet (Rev. E) Nov. 04, 2015
Selection guide Buck Converter Quick Reference Guide (Rev. B) Apr. 08, 2021
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical article It’s on – TPS54061 switching regulator vs. LM317 linear regulator Aug. 22, 2013
Application note Linear versus switching regulators in industrial applications with a 24-V bus Jul. 25, 2013
Technical article How to choose an LDO or switching regulator May 08, 2013
Application note Using the TPS54061 to Create an Inverting Power Supply Jul. 17, 2012
User guide Evaluation Module for TPS54061 Synchronous Step-Down SWIFT Converter Apr. 12, 2012

Design & development

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

Hardware development

TPS54061 Evaluation Module
document-generic User guide
The Texas Instruments TPS54061EVM-142 evaluation module (EVM) helps designers evaluate the performance of the TPS54061 Synchronous Step-Down SWIFT™ Converter. The EVM operates from an 8V to 60V input (24V nominal) and provides a 3.3V output at 200mA.
  • 4.7 V to 60 V Input Supply Voltage
  • Integrated High Side and Low Side N-Channel MOSFET
  • Fixed Frequency Peak Current Mode Control
  • 1.4 μA Shutdown Current
  • 90 μA No Load Quiescent Operating Current
  • Enable with Hysteresis (for Adjustable Input Voltage UVLO)
  • 50 kHz to 1.1MHz Adjustable Switching Frequency using (...)

Design tools & simulation

SLVM599.ZIP (49 KB) - PSpice Model
SLVMCZ5.ZIP (6 KB) - PSpice Model
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 (...)
  • 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
  • (...)
SLVC431A.ZIP (198 KB)
SLVC439A.ZIP (101 KB)

Reference designs

4-20 mA Loop Sensor Isolated Power Supply
PMP10977 The TPS54061 is used in a buck topology with an auxillary winding providing power to the primary side and isolated side of a isolated system. The high efficiency of this topology provides more output current from a system powered from a current limited input source. The isolated output is post (...)
document-generic Schematic
18V/1kW, 160A Peak, >98% Efficient, High Power Density Brushless Motor Drive Reference Design
TIDA-00774 — The TIDA-00774 is a 1kW drive for a three-phase brushless DC (BLDC) motor in power tools operating from a 5-cell Li-ion battery with a voltage up to 21 V. The design is a 65mm x 60mm compact drive, implementing sensor-based trapezoidal control. The design takes advantage of TI's MOSFET Power Block (...)
document-generic Schematic
36V/1kW Brushless DC Motor Drive with Stall Current Limit of <1us Response Time Reference Design
TIDA-00436 This reference design is a power stage for brushless motors in battery-powered garden and power tools rated up to 1 kW, operating from a 10-cell lithium-ion battery with a voltage range from 36 to 42 V. The design uses 60V, N-channel NexFETsTM featuring a very low drain-to-source resistance (RDS_ON (...)
document-generic Schematic
Universal Digital Interface to Absolute Position Encoders Reference Design
TIDA-00179 TIDA-00179 is an EMC-compliant universal digital interface to connect to absolute position encoders like EnDat 2.2, BiSS®, SSI or HIPERFACE DSL®. This reference design supports a wide-input voltage range from 15 V to 60 V (24-V nom). A connector with 3.3-V logic I/O signals allows for direct (...)
document-generic Schematic
Wide Input Automotive Buck Reference Design
PMP10182 This automotive reference design has an input voltage range of 10V to 45V and provides an output voltage of 9.0V @ 150mA. It's using only ceramic capacitors on the output as well as on the input which enables the use for a wide temperature range.
document-generic Schematic
36-57Vin 5.4Vout 150mA Uses TPS54061 Features Light-load Efficiency Telecom Voltage Reference Design
PMP9535 This design uses a synchronous buck converter to provide light load efficiency with predictable ripple off "Telecom" voltage range. This approach is described in the TPS54061 datasheet from page 23 onwards. A low fixed frequency of 50kHz with operation in the discontinuous mode at all, but the (...)

CAD/CAE symbols

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SON (DRB) 8 View options

Ordering & quality

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