TPS568215OA 4.5V to 17V Input, DCAP3 Mode, 8A Synchronous SWIFT™ Step-Down Converter with Out of Audio | TI.com

TPS568215OA
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4.5V to 17V Input, DCAP3 Mode, 8A Synchronous SWIFT™ Step-Down Converter with Out of Audio

 

Description

The TPS568215OA 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 it offers ease-of-use with minimal external component count for space-conscious power systems. Key features include a very accurate reference voltage, fast load transient response, Out-of-Audio mode, 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 TPS568215OA is available in a thermally enhanced 18-pin HotRod™ QFN package and is designed to operate from –40°C to 150°C junction temperature. TPS568215OA is pin to pin compatible with TPS568215 and 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 or 1.2 MHz
  • Out-of-Audio Feature to Keep Switching Frequency Out of Audio Frequency Range
  • 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
  • 0.6 V to 5.5 V Output Voltage Range
  • Supports all Ceramic 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

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)
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)    
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)    
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)