NCP5203

Features: • Supports DDR I and DDR II• Incorporates VDDQ, VTT Regulators• Operates from Single 5 V Supply• VTT Regulator includes Integrated Power FETs Sourcing/Sinking up to 2.0 A• All External Power MOSFETs are N−Channel• Adjustable VDDQ• Adjustabl...

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NCP5203 Picture
SeekIC No. : 004433030 Detail

NCP5203: Features: • Supports DDR I and DDR II• Incorporates VDDQ, VTT Regulators• Operates from Single 5 V Supply• VTT Regulator includes Integrated Power FETs Sourcing/Sinking up to...

floor Price/Ceiling Price

Part Number:
NCP5203
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/1/9

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Product Details

Description



Features:

• Supports DDR I and DDR II
• Incorporates VDDQ, VTT Regulators
• Operates from Single 5 V Supply
• VTT Regulator includes Integrated Power FETs Sourcing/Sinking up to 2.0 A
• All External Power MOSFETs are N−Channel
• Adjustable VDDQ
• Adjustable VTT
• Fixed Switching Frequency of 300 kHz for VDDQ in S0
• Fixed Switching Frequency of 600 kHz for VDDQ in S3
• Soft−Start Protection for VDDQ
• Undervoltage Monitor of 5VDUAL
• Short−Circuit Protection for VDDQ and VTT
• Thermal Shutdown
• Housed in QFN−18
• Pb−Free Package is Available*



Application

• DDR Memory Supply and Termination Voltage
• Active Termination Busses (SSTL−2, SSTL−3)



Pinout

  Connection Diagram


Specifications

Rating Symbol Value Unit
Power Supply Voltage (Pin 12, 18) 5VDUAL −0.3, 6.5 V
Gate Drive Supply/Output Voltage (Pin 13, 14, 15) VBST, Vg −0.3, 14 V
Switch DDQ (Pin 11) SWDDQ −1.0, 5VDUAL V
Input/Output Pins (Pin 1, 2, 7; 4, 5, 17; 3, 8, 9, 10) VIO −0.3, 6.5 V
Thermal Characteristics
QFN−18 Plastic Package
Thermal Resistance Junction−to−Ambient
RJA 35 °C/W
Operating Junction Temperature Range TJ 0 to +150 °C
Operating Ambient Temperature Range TA 0 to +70 °C
Storage Temperature Range Tstg −55 to +150 °C
Moisture Sensitivity Level MSL 2.0
Electro Static Discharge (ESD)
Human Body Model
Machine Model
HBM
MM
2.0
200
kV
V

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.
1. All voltages are with respect to AGND (Pin 6) and PGND (Pin 16).




Description

The NCP5203 2−in−1 DDR Power Controller is a complete power solution for an ACPI compliant high current DDR memory system. This IC combines the efficiency of a PWM controller for the VDDQ supply with the simplicity of linear regulator for the VTT termination voltage. The NCP5203 contains a synchronous PWM buck controller for driving two external NFETs to form the DDR memory supply voltage (VDDQ). The ±2.0 A user adjustable VTT terminator regulator has short circuit protection. An internal power good function monitors both the VDDQ and VTT outputs and signals if a fault occurs. Protective features of the NCP5203 include soft−start, undervoltage monitoring of 5VDUAL, over protection current (OCP), and thermal shutdown. The IC is packaged in 18−lead QFN.




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