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

TPS54062 (ACTIVE)

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

 

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.

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

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.

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 Foldback Protection
  • MSOP-8 and 3mm × 3mm VSON-8 Packages

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Special Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
Approx. Price (US$)
TPS54062 LM25011 LM25011-Q1 LM25019 LM5009 LM5165 LM5165-Q1 TPS54061 TPS54061-Q1
4.7    6    6    7.5    9.5    3    3    4.7    4.7   
60    42    42    48    95    65    65    60    60   
0.8    2.51    2.51    1.25    2.5    1.23    1.23    0.8    0.8   
58    40    40    40    85    65    65    58    58   
0.05    2    2    0.1    0.15    0.15    0.15    0.2    0.2   
1    1    1    1    1    1    1    1    1   
100    50    50    50    50    50    50    50    50   
400    2000    2000    1000    600    600    600    1100    1100   
0.089    1.2    1.2    1.75    0.485    0.01    0.01    0.09    0.09   
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable   
      Enable    Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable   
Current Mode            Constant on-time (COT)    Constant on-time (COT)    Current Mode    Current Mode   
98    99    99    90    99    100    100    98    98   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 150    -40 to 150    -40 to 150    -40 to 150   
Catalog    Catalog    Automotive    Catalog    Catalog    Catalog    Automotive    Catalog    Automotive   
SON
VSSOP   
MSOP-PowerPAD    MSOP-PowerPAD    SO PowerPAD
WSON   
VSSOP
WSON   
VSON    VSON    SON    SON   
0.88 | 1ku    0.95 | 1ku    1.40 | 1ku    0.81 | 1ku    1.10 | 1ku    1.35 | 1ku    1.58 | 1ku    1.04 | 1ku    1.30 | 1ku   
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WEBENCH® Designer TPS54062

  Min   Max Range
Vin  V 4.7 to 60.0V
Vout  V 0.8 to 58.0V
Iout  A ≤ 0.05A
Ambient Temp  °C -40 to 125°C


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