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TPS54061-Q1

ACTIVE

Automotive Catalog, 4.7V -60-V, 200-mA Synchronous Step-Down DC-DC Converter

A newer version of this product is available

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LMR36503-Q1 ACTIVE Automotive 3-V to 65-V, 0.3-A buck converter optimized for size and light load efficiency Smaller footprint, lower IQ and lower EMI.

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) (mA) 0.09 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 Automotive Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
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) (mA) 0.09 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 Automotive Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
VSON (DRB) 8 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Integrated High-Side and Low-Side MOSFETs
  • Diode Emulation for Light-Load Efficiency
  • Peak-Current Mode Control
  • 90-µA Operating Quiescent Current
  • 1.4-µA Shutdown Supply Current
  • 50-kHz to 1.1-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • 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
  • 3-mm × 3-mm, 8-Pin SON Package With Thermal
    Pad
  • –40°C to 150°C Operating Junction Temperature
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Integrated High-Side and Low-Side MOSFETs
  • Diode Emulation for Light-Load Efficiency
  • Peak-Current Mode Control
  • 90-µA Operating Quiescent Current
  • 1.4-µA Shutdown Supply Current
  • 50-kHz to 1.1-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • 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
  • 3-mm × 3-mm, 8-Pin SON Package With Thermal
    Pad
  • –40°C to 150°C Operating Junction Temperature

The TPS54061-Q1 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 reduces the shutdown supply current to 1.4 µA.

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

The internal undervoltage lockout setting is 4.5 V, but using two resistors on the enable pin can increase the setting. The internal slow-start time controls the output-voltage start-up ramp.

The adjustable switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS54061-Q1 enables small designs by integrating the MOSFETs and boot recharge diode, and by minimizing the IC footprint with a small 3-mm × 3-mm thermally-enhanced SON package.

The TPS54061-Q1 is supported in the WEBENCH™ Designer at www.ti.com.

The TPS54061-Q1 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 reduces the shutdown supply current to 1.4 µA.

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

The internal undervoltage lockout setting is 4.5 V, but using two resistors on the enable pin can increase the setting. The internal slow-start time controls the output-voltage start-up ramp.

The adjustable switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS54061-Q1 enables small designs by integrating the MOSFETs and boot recharge diode, and by minimizing the IC footprint with a small 3-mm × 3-mm thermally-enhanced SON package.

The TPS54061-Q1 is supported in the WEBENCH™ Designer at www.ti.com.

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Technical documentation

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* Data sheet TPS54061-Q1 Wide-Input, 60-V, 200-mA Synchronous Step-Down DC–DC Converter With Low IQ datasheet (Rev. A) PDF | HTML 07 Jan 2016

Design & development

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Simulation model

TPS54061 PSpice Transient Model

SLVM599.ZIP (49 KB) - PSpice Model
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SLVC431 TPS54061 Design Excel Spreadsheet Tool

Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TPS54061 4.7V to 60V Input, 200mA Synchronous Step-Down Converter with Low IQ TPS54061-Q1 Automotive Catalog, 4.7V -60-V, 200-mA Synchronous Step-Down DC-DC Converter
Hardware development
Evaluation board
TPS54061EVM-142 TPS54061 Evaluation Module
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VSON (DRB) 8 View options

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