TPS54395 4.5V to 18V Input, Dual 3A Output, Synchronous Step-Down Converter | TI.com

TPS54395
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4.5V to 18V Input, Dual 3A Output, Synchronous Step-Down Converter

4.5V to 18V Input, Dual 3A Output, Synchronous Step-Down Converter - TPS54395
Datasheet
3A Dual Channel Synchronous Step Down Switcher With Integrated FET datasheet (Rev. A)
 

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Description

The TPS54395 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54395 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54395 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54395 to maintain high efficiency during lighter load conditions. The TPS54395 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54395 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) and 4 mm x 4 mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from –40°C to 85°C.

Features

  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop Compensation
    • Compatible with Ceramic Output Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range: 0.76V to 7.0V
  • Highly Efficient Integrated FETs Optimized for
    Low Duty Cycle Applications
    • 90 mΩ (High Side) and 60 mΩ (Low Side)
  • High Initial Reference Accuracy
  • Supports Constant 3A at Both Channels
  • Low-Side rDS(on) Loss-Less Current Sensing
  • Adjustabel Soft Start
  • Non-Sinking Pre-Biased Soft Start
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/UVLO/TSD Protections
  • Hiccup Timer for Overload Protection
  • Adaptive Gate Drivers with Integrated Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated rDS(on)
    with 4000ppm/°C
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode™ for High Efficiency at Light Load

WEBENCH ® TPS54395
    Min   Max   Range  
  Vin1 - V    4.5 - 18.00V  
  Vout1 V    0.76 - 7.00  
  Iout1 A    ≤ 3.0A  
Select Input 1

  Vin2 - V    4.50 - 18.0V  
  Vout2 V    0.76 - 7.00V  
  Iout2 A    ≤ 3.00A  
Select Input 2

  Ambient Temp  °C    ≤ 100 °C  
 
What are WEBENCH ® tools?

Parametrics

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Part number Order Regulated outputs (#) Vin (Min) (V) Vin (Max) (V) Iout (Max) (A) Iq (Typ) (mA) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS54395 Order now 2     4.5     18     3     1.2     Enable
Light Load Efficiency
Synchronous Rectification
Multiple Outputs
Soft Start Adjustable    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS54294 Order now 2     4.5     18     2     1.3     Enable
Light Load Efficiency
Power Good
Synchronous Rectification
Soft Start Fixed
Power Good    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS542941 Order now 2     4.5     18     2     1.3     Enable
Light Load Efficiency
Power Good
Synchronous Rectification
Soft Start Fixed    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS54295 Order now 2     4.5     18     2     1.3     Enable
Light Load Efficiency
Synchronous Rectification
Soft Start Adjustable    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS542951 Order now 2     4.5     18     2     1.3     Enable
Light Load Efficiency
Synchronous Rectification
Soft Start Adjustable    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS54394 Order now 2     4.8     18     3     1.2     Enable
Light Load Efficiency
Power Good
Synchronous Rectification
Soft Start Fixed    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS54494 Order now 2     4.5     18     4     1.2     Enable
Light Load Efficiency
Power Good
Synchronous Rectification
Soft Start Fixed    		 Catalog     -40 to 85     HTSSOP | 16
QFN | 16    		 16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS54495 Order now 2     4.5     18     4     1.2