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)
Performance 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    
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 Synch
Light Load Efficiency Mode
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Power Good    
Adjustable Current Limit
Power Good    
Enable
Synchronous Rectification
UVLO Adjustable    
Enable     Adjustable Current Limit
Enable
Light Load Efficiency Mode
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Enable
Light Load Efficiency Mode
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Enable
Frequency Synch
Light Load Efficiency Mode
Synchronous Rectification
UVLO Adjustable    
Enable
Frequency Synch
Light Load Efficiency Mode
Synchronous Rectification
UVLO Adjustable    
Current Mode     COT with emulated ripple     COT with emulated ripple     Constant on-time (COT)       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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