4.7V to 60V Input, 50mA Synchronous Step-Down Converter - TPS54062

TPS54062 (ACTIVE)

4.7V to 60V Input, 50mA Synchronous Step-Down Converter

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Description

The TPS54062 device is a 60 V, 50-mA, synchronous step-down 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 89 µA. Using the enable pin, shutdown supply current is reduced to 1.7 µA.

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

Adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

Features

  • Integrated High Side and Low Side MOSFET
  • Peak Current Mode Control
  • Diode Emulation for Improved Light Load Efficiency
  • 89 µA (typical) Operating Quiescent Current
  • 100 kHz to 400 kHz Adjustable Switching Frequency
  • Synchronizes to External Clock
  • Internal Slow Start
  • 0.8 V ±2% Voltage Reference
  • Stable with Ceramic Output Capacitors or Low Cost Aluminum Electrolytic
  • Cycle-by-Cycle Current Limit, Thermal and Frequency Fold Back Protection
  • MSOP-8 and 3mm × 3mm VSON-8 Packages

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Regulated Outputs (#) 1
Vin (Min) (V) 4.7
Vin (Max) (V) 60
Vout (Min) (V) 0.8
Vout (Max) (V) 58
Iout (Max) (A) 0.05
Iout2 (Max) (A) -
Vout2 (Min) (V) -
Vout2 (Max) (V) -
Topology Buck
Inverting Buck-Boost
  • Boost
  • Buck
  • Buck-Boost
  • Inverting Buck-Boost
Switching Frequency (Max) (kHz) 400
Switch Current Limit (Typ) (A) 0.13
Iq (Typ) (mA) 0.089
Duty Cycle (Max) (%) 98
Soft Start Fixed
  • Adjustable
  • Fixed
  • None
Compensation External
  • External
  • Internal
  • Not Needed
Special Features Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
  • Adjustable Current Limit
  • Adjustable UVLO
  • Dynamic Voltage Scaling
  • Enable
  • Frequency Synchronization
  • Light Load Efficiency
  • Phase Interleaving
  • Power Good
  • Synchronous Rectification
  • Tracking
Control Mode Current Mode
  • COT with emulated ripple
  • Constant on-time (COT)
  • Current Mode
  • D-CAP
  • D-CAP+
  • D-CAP2
  • D-CAP3
  • Voltage Mode
Preset Vout (V) -
Vref Accuracy (Typ) (%) 1
Rating Catalog
  • Automotive
  • Catalog
  • HiRel Enhanced Product
  • High Temp
  • Military
  • Space
Operating Temperature Range (C) -40 to 125 °C to °C
Approx. Price (US$) 0.88 | 1ku
Package Group SON
VSSOP
  • CFP
  • DDPAK/TO-263
  • DSBGA
  • DSLGA
  • HTSSOP
  • LQFN-CLIP
  • LSON-CLIP
  • MSOP-PowerPAD
  • PDIP
  • QFN
  • SO PowerPAD
  • SOIC
  • SON
  • SOT
  • SOT-23
  • TO-220
  • TO-263
  • TSSOP
  • USON
  • VQFN
  • VQFN-CLIP
  • VSON
  • VSSOP
  • WQFN
  • WSON
  • XCEPT
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WEBENCH® TPS54062
    Min   Max   Range  
  Vin V    4.70 – 60.00V  
  Vout V    0.80 – 58.00V  
  Iout A    ≤ 0.05A  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
 
 
 
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