TPS56339 4.5-V to 24-V input, 3-A output synchronous buck converter | TI.com

TPS56339
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4.5-V to 24-V input, 3-A output synchronous buck converter

 

Description

The TPS56339 is a 4.5-V to 24-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching MOSFETs, internal loop compensation and 5-ms internal soft-start to reduce component count. By employing the SOT-23 (6) package, the device achieves the high power density and offers small footprint on PCB.

The TPS56339 employs Advanced Emulated Current Mode (AECM) control that can get fast transient response with fixed frequency. The internal adaptive loop adjustment eliminates the need for external compensation over a wide voltage output range.

Cycle-by-cycle current limit on the high-side protects the device in current overload conditions and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered under undervoltage and thermal shutdown protections.

Features

  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.8 V to 16 V
  • 3-A maximum continuous output current
  • Fixed 500-kHz switching frequency
  • Support up to 97% duty cycle
  • Integrated 70-mΩ and 35-mΩ MOSFETs
  • Typical 3-µA shutdown current
  • Typical 98-µA quiescent current
  • Internal 5-ms soft-start
  • Internal loop compensation for ease use
  • Cycle-by-cycle current limit for both high-side and low-side MOSFETs
  • Non-latched UVP, UVLO and TSD protections
  • SOT-23 (6) package
  • Create a custom design using TPS56339 with the WEBENCH® Power Designer

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WEBENCH® Designer TPS56339

  Min   Max Range
Vin  V 4.5 to 24.0V
Vout  V 0.8 to 16V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 85°C

Parametrics

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Part number Order 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 Type Package size: mm2:W x L (PKG)
TPS56339 Order now 4.5     24     0.8     16     3     1     500     500     0.093     Enable
Light Load Efficiency
Synchronous Rectification
Soft Start Fixed    
Current Mode     95     -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)    
TPS54202 Order now 4.5     28     0.6     26     2     1     500     500     0.04     Enable
Light Load Efficiency
Pre-Bias Start-Up
Spread Spectrum
Synchronous Rectification
UVLO Adjustable
Soft Start Fixed    
Current Mode     100     -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)    
TPS54202H Order now 4.5     28     0.6     26     2     1     500     500     0.04     Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Soft Start Fixed    
Current Mode     100     -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)    
TPS54302 Order now 4.5     28     0.6     26     3     1     400     400     0.04     Enable
Light Load Efficiency
Pre-Bias Start-Up
Spread Spectrum
Synchronous Rectification
UVLO Adjustable
Soft Start Fixed    
Current Mode     100     -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)    
TPS54308 Order now 4.5     28     1     26     3     1     350     350     0.3     Enable
Forced PWM
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Soft Start Fixed    
Current Mode     100     -40 to 125     Catalog     SOT-23-THIN | 6     Converter