TPS568215 4.5V to 17V Input, DCAP3 Mode, 8A Synchronous SWIFT™ Step-Down Converter | TI.com

TPS568215
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
4.5V to 17V Input, DCAP3 Mode, 8A Synchronous SWIFT™ Step-Down Converter

 

Recommended alternative parts

  • TPS568230  -  Allows a more cost-effective solution with a smaller 3mm x 3mm package.

Description

The TPS568215 is TI’s smallest monolithic 8-A synchronous buck converter with an adaptive on-time D-CAP3™ control mode. The device integrates low RDS(on) power MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems. Competitive features include a very accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, adjustable current limit and no requirement for external compensation. A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS568215 is available in a thermally enhanced 18-pin HotRod™ QFN package and is designed to operate from –40°C to 150°C junction temperature. TPS568215 is pin to pin compatible with TPS56C215 which gives the user flexibility to pick solutions from 6A to 12A in the same footprint.

Features

  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable FSW of 400 kHz, 800 kHz and 1.2 MHz
  • Adjustable Current Limit Settings with Hiccup Re-start
  • 0.6 V ±1% Reference Voltage Across Full Temperature Range
  • Optional External 5-V Bias Support for Enhanced Efficiency
  • D-CAP3™ Control Mode for Fast Transient Response
  • Selectable Forced Continuous Conduction Mode (FCCM) for Tight Output Voltage Ripple or Auto- Skipping Eco-mode™ for High Light-Load Efficiency
  • 0.6 V to 5.5 V Output Voltage Range
  • Supports Ceramic Output Capacitors
  • Monotonic Startup into Pre-biased Outputs
  • Adjustable Soft Start with a Default 1-ms Soft Start Time
  • –40°C to 150°C Operating Junction Temperature
  • Small 3.5-mm × 3.5-mm HotRod™ QFN Package
  • Supported at the WEBENCHreg; Design Center

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS568215

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 8A
Ambient Temp  °C -40 to 150°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)
TPS568215 Order now 4.5     17     0.6     5.5     8     1     400     1200     0.6     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Forced PWM
Soft Start Adjustable    
D-CAP3     90     -40 to 125     Catalog     VQFN-HR | 18     Converter     18VQFN-HR: 12 mm2: 3.5 x 3.5 (VQFN-HR | 18)    
TPS568215OA Order now 4.5     17     0.6     5.5     8     1     400     1200     0.6     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Forced PWM
Soft Start Adjustable    
D-CAP3     90     -40 to 125     Catalog     VQFN-HR | 18     Converter     18VQFN-HR: 12 mm2: 3.5 x 3.5 (VQFN-HR | 18)    
TPS56C215 Order now 3.8     17     0.6     5.5     12     1     400     1200     0.6     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Forced PWM
Soft Start Adjustable    
D-CAP3     90     -40 to 125     Catalog     VQFN-HR | 18     Converter     18VQFN-HR: 12 mm2: 3.5 x 3.5 (VQFN-HR | 18)