TPS54620 4.5V to 17V Input, 6A Synchronous Step-Down SWIFT™ Converter | TI.com

TPS54620 (ACTIVE)

4.5V to 17V Input, 6A Synchronous Step-Down SWIFT™ Converter

4.5V to 17V Input, 6A Synchronous Step-Down SWIFT™ Converter - TPS54620
 

Recommended alternative parts

  • TPS54824  -  Next generation device of TPS54620

Description

The TPS54620 in thermally enhanced 3.50 mm × 3.50 mm QFN package is a full featured 17-V, 6-A, synchronous, step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the footprint of the inductor.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open-drain power good pins.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.

Features

  • Integrated 26 mΩ and 19 mΩ MOSFETs
  • Split Power Rail: 1.6 V to 17 V on PVIN
  • 200-kHz to 1.6-MHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8 V ±1% Voltage Reference Overtemperature
  • Low 2-µA Shutdown Quiescent Current
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 150°C Operating Junction Temperature Range
  • Adjustable Slow Start and Power Sequencing
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • Adjustable Input Undervoltage Lockout
  • For SWIFT™ Documentation, Visit http://www.ti.com/swift
  • Create a Custom Design Using the TPS54620 With the WEBENCH Power Designer

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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)
Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS54620
4.5    
17    
0.8    
15    
6    
1    
200    
1600    
0.6    
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Current Mode    
98    
-40 to 150    
Catalog    
VQFN    
New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS54620

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.8 to 15V
Iout  A ≤ 6A
Ambient Temp  °C -40 to 140°C


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