TPS53317 Low Input Voltage, 6A Synchronous Step-Down SWIFT™ Converter for DDR Memory Termination | TI.com

TPS53317 (ACTIVE)

Low Input Voltage, 6A Synchronous Step-Down SWIFT™ Converter for DDR Memory Termination

 

Description

The device is a FET-integrated synchronous buck regulator designed mainly for DDR termination. It can provide a regulated output at ½ VDDQ with both sink and source capability. The device employs D-CAP+ mode operation that provides ease of use, low external component count and fast transient response. The device can also be used for other point-of-load (POL) regulation applications requiring up to 6 A. In addition, the device supports full, 6-A, output sinking current capability with tight voltage regulation.

The device features two switching frequency settings (600 kHz and 1 MHz), integrated droop support, external tracking capability, pre-bias startup, output soft discharge, integrated bootstrap switch, power good function, V5IN pin UVLO protection, and supports both ceramic and SP/POSCAP capacitors. It supports input voltages up to 6.0 V, and output voltages adjustable from to 2.0 V.

The device is available in the 3.5 mm × 4 mm, 20-pin, VQFN package (Green RoHs compliant and Pb free) with TI proprietary Integrated MOSFET and packaging technology and is specified from –40°C to 85°C.

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • TI proprietary Integrated MOSFET and Packaging Technology
  • Supports DDR Memory Termination with up to 6-A Continuous Output Source or Sink Current
  • External Tracking
  • Minimum External Components Count
  • to 6-V Conversion Voltage
  • D-CAP+ Mode Architecture
  • Supports All MLCC Output Capacitors and SP/POSCAP
  • Selectable SKIP Mode or Forced CCM
  • Optimized Efficiency at Light and Heavy Loads
  • Selectable 600-kHz or 1-MHz Switching Frequency
  • Selectable Overcurrent Limit (OCL)
  • Overvoltage, Over-Temperature and Hiccup Undervoltage Protection
  • Adjustable Output Voltage from to 2 V
  • 3.5 mm × 4 mm, 20-Pin VQFN Package

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Parametrics Compare all products in DDR memory

 
DDR memory type
Control mode
Iout VDDQ (Max) (A)
Iout VTT (Max) (A)
Iq (Typ) (mA)
Output
Vin (Min) (V)
Vin (Max) (V)
Features
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
TPS53317 LP2996-N LP2997 LP2998-Q1 TPS51100 TPS51200 TPS51200-Q1 TPS51206 TPS53317A TPS54116-Q1 TPS54372 TPS54672 TPS54872
DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
DDR
DDR2    
DDR2     DDR
DDR2
DDR3
DDR3L    
DDR
DDR2
DDR3
DDR3L
LPDDR3    
DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
DDR
DDR2
DDR3
DDR3L
DDR4    
DDR
DDR2
DDR3    
DDR
DDR2
DDR3    
DDR
DDR2
DDR3    
D-CAP+
S3
S4/S5    
   
   
   
S3
S5    
D-CAP
S3
S4/S5    
D-CAP
S3
S4/S5    
   
D-CAP+     Current Mode     Voltage Mode     Voltage Mode     Voltage Mode    
                  4          
6     1.5     0.5     1.5     3     3     3     2     6     1     3     6     8    
0.32     0.32     0.32     0.32     0.5     0.5     0.5     0.17     0.32     0.65     6.2     11     11    
VTT     VREF
VTT    
VREF
VTT    
VREF
VTT    
VREF
VTT    
VREF
VTT    
VREF
VTT    
VREF
VTT    
VREF
VTT    
VDDQ
VREF
VTT    
VTT     VTT     VTT    
1     1.8     1.8     1.35     1.2     1.1     1.1     1     0.9     2.95     3     3     4    
6     5.5     5.5     5.5     3.6     3.5     3.5     3.5     6     6     6     6     6    
Complete Solution     Shutdown Pin for S3     Shutdown Pin for S3     Shutdown Pin for S3     S3/S5 Support     S3/S5 Support     S3/S5 Support     S3/S5 Support     Eco Mode
Fixed PWM Mode
Power Good
Tracking/Non-Tracking Mode    
Complete Solution
Power Good
Shutdown Pin for S3    
Status Pin     Status Pin     Status Pin    
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