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NCP5209

Features: Synchronous PWM Buck Controller for VDDQIntegrated Power FETs with VTT Regulator Sourcing/Sinking up to 1.8 ATwo Linear Regulator Drivers for VMCHAll External Power MOSFETs are N−ChannelAdjustable VDDQ and VMCH by External DividersVTT Tracks at Half the Reference Voltage or can be ...

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NCP5209: Features: Synchronous PWM Buck Controller for VDDQIntegrated Power FETs with VTT Regulator Sourcing/Sinking up to 1.8 ATwo Linear Regulator Drivers for VMCHAll External Power MOSFETs are N−Cha...

NCP5209 Data Sheet

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Part Number:
NCP5209
Supply Ability:
5000

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

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Product Details

Description



Features:

Synchronous PWM Buck Controller for VDDQ
Integrated Power FETs with VTT Regulator Sourcing/Sinking up to 1.8 A
Two Linear Regulator Drivers for VMCH
All External Power MOSFETs are N−Channel
Adjustable VDDQ and VMCH by External Dividers
VTT Tracks at Half the Reference Voltage or can be Adjusted Externally
Fixed Switching Frequency of 250 kHz for DDQ Regulator in Normal Mode Doubled switching frequency (500 kHz) for DDQ Regulator in Standby Mode
Soft−Start Protection for all Regulators
Under−Voltage Monitoring of Supply Voltages
Over−Current Protection for DDQ and VTT Regulators
Fully Complies with ACPI Power Sequencing Specifications
Protects against Reverse DIMM Insertion
Thermal Shutdown
Housed in QFN−20


Application

DDR I and DDR II Memory and MCH Power Supply


Pinout

Connection Diagram


Specifications

Rating Symbol Value Unit
Power Supply Voltage (Pin 16) to AGND (Pin 7) 5VDUAL −0.3, 6.0 V
Gate Drive Voltage (Pin 11, 13, 17−19) to AGND (PIN 7) VCC, Vg −0.3, 14 V
Input / Output Pins to AGND (Pin 7)
Pin 1−6, 8−10, 12, 14−15, 20		 VIO −0.3, 6.0 V
Thermal Characteristics
QFN−20 Plastic Package
Thermal Resistance Junction−to−Air		 R JA_Q 68 °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    



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