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Номер в каталоге(s) : RT8885AZQW RT8885A
Richtek
Richtek Technology
Компоненты Описание : Dual Output 3-Phase + 2-Phase PWM Controller For CPU and GPU Core Power Supply

General Description
The RT8885A is a dual output 3-phase + 2-phase PWM controller with 3 integrated MOSFET gate drivers and a single SVID interface for CPU and GPU core power supply. This part complies with Intel VR12/IMVP7 Pulse Width Modulation Specification.

Features
● Dual Output : 3-Phase (CORE) + 2-Phase (GFX)
● Integrated MOSFET Drivers : 2 (CORE) + 1 (GFX)
● VR12/IMVP7 PWM Specification Compliant
● Serial VID Interface
● G-NAVPTM Topology
● Fast Line/Load Transient Response
● Quick Response for Load Transient
● 0.5% DAC Accuracy
● 0.8% System Accuracy
● Accurate Current Balance
● Selectable Droop Function
● Selectable Forced DEM Operation
● Built-in ADC for Platform Programming
● Power Good Indicator
● Current Monitor Output
● Thermal Monitor
● Thermal Throttling Indicator VRHOT
● Phase Shedding in PS1
● Phase Shedding and Diode Emulation in PS2
● Differential Remote Output Voltage Sense
● Lossless Inductor DCR Current Sense
● Switching Frequency up to 1MHz per Phase
● OVP, UVP, NVP, OCP, OTP, UVLO
● 56-Lead WQFN Package
● RoHS Compliant and Halogen Free

Applications
● IMVP7 Intel CPU/CPU Core Power Supply
● Laptop Computer
● AVP Step-Down Converter

Номер в каталоге(s) : RT9018A/B_12 RT9018A_12 RT9018B_12
Richtek
Richtek Technology
Компоненты Описание : Reliability Report For RT9018A/B

Summary
● The test results can be applied to all of the products including a series of RT9018A/B.
● Any questions or inquiries for regarding related products or service of RICHTEK, you
   may contact us through our technical support center.
   (RICHTEK.com/contact10.1.jsp" data-cke-saved-href="http://www.RICHTEK.com/contact10.1.jsp">http://www.RICHTEK.com/contact10.1.jsp)
  
Purpose
● The HTOL test is to demonstrate the quality or reliability of device subjects to the
   specified conditions over an extended time period.
● The ESD tests are used to classify the electrostatic discharge of microcircuits.
● The latch-up test is used to check IC latch-up characteristics.
● The environment tests are to ensure the process of assembly of this package type that
   meets RICHTEK quality specifications.

Номер в каталоге(s) : RT8167B RT8167BGQW
Richtek
Richtek Technology
Компоненты Описание : Dual Single-Phase PWM Controller for CPU and GPU Core Power Supply

General Description

The RT8167B is a dual single-phase PWM controller with integrated MOSFET drivers, compliant with Intel IMVP7 Pulse Width Modulation Specification to support both CPU core and GPU core power. This part adopts G-NAVPTM (Green-Native AVP), which is a RICHTEK proprietary topology derived from finite DC gain compensator in constant on time control mode. G-NAVPTM makes this part an easy setting PWM controller to meet all Intel AVP (Active Voltage Positioning) mobile CPU/GPU requirements. The RT8167B uses SVID interface to control an 8-bit DAC for output voltage programming. The built-in high accuracy DAC converts the received VID code into a voltage value ranging from 0V to 1.52V with 5mV step voltage.



Features

Dual Single-Phase PWM Controller for CPU Core and GPU Core Power

IMVP7 Compatible Power Management States

Serial VID Interface

G-NAVPTM Topology

AVP for CPU VR Only

0.5% DAC Accuracy

0.8% System Accuracy

Differential Remote Voltage Sensing

Built-in ADC for Platform Programming

   SETINI/SETINIA for CPU/GPU Core VR Initial Startup Voltage

   TMPMAX to Set Platform Maximum Temperature

   ICCMAX/ICCMAXA for CPU/GPU Core VR Maximum Current

Power Good Indicator : VR_READY/VRA_READY for CPU/GPU Core Power

Thermal Throttling Indicator : VRHOT

Diode Emulation Mode at Light Load Condition

Fast Line/Load Transient Response

Switching Frequency up to 1MHz per Phase

OVP, UVP, NVP, OTP, UVLO, OCP

Small 40-Lead WQFN Package

RoHS Compliant and Halogen Free



Applications

IMVP7 Intel CPU/GPU Core Power Supply

Laptop Computers

AVP Step-Down Converter


Richtek
Richtek Technology
Компоненты Описание : ACPI Regulator/Controller for Dual Channel DDR Memory Systems

General Description
The RT9644/A is a complete ACPI compliant power solution for DDR and DDR2 memory system with up to 4 DIMMs dual channel systems. This RT9644 includes one synchronous buck controller for DDR/DDR2 VDDQ, one DDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, three LDO controllers for VGMCH (cascode), and GMCH/CPU termination VTT_GMCH/CPU. The RT9644A includes one synchronous buck controller for DDR/DDR2 VDDQ, one PWM controller for VGMCH (with external MOSFET driver), oneDDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, and two LDO controllers for VTT_GMCH/CPU and VDAC.

Features
● RT9644 Includes Three LDO Controllers, One LDO Regulator and One PWM Controller
    }OneDDR/DDR2 VDDQ with Synchronous Buck PWM
    }One DDR/DDR2 Bus Terminator VTT Regulator Source/Sink 3A
    }Two Cascode LDO Controllers forGMCH Core
    }One LDO Controller forGMCH/CPU Bus Terminator VTT_GMCH/CPU
● RT9644AIncludes Two LDO Controllers, One LDO Regulator and Two PWM Controllers
    }OneDDR/DDR2 VDDQ with Synchronous Buck PWM
    }One VGMCH with External RICHTEK MOSFET Driver
    }One DDR/DDR2 Bus Terminator VTT Regulator Source/Sink 3A
    }One LDO Controller for VDAC
    }One LDO Controller for GMCH/CPU Bus
    Terminator VTT_GMCH/CPU
● Operating with 5V and 12V Supply Voltage
● ACPI Compliant Sleep Mode Control
● DriveAll Low Cost N-MOSFETs
● Voltage Mode PWM Control
    }250kHz Fixed Frequency Oscillator (RT9644A: Two PWM controllers with phase shift 90o)
    }Simple Voltage Mode Loop Control
    }Fast Transient Response
    }Over Current Protection
● Fully Adjustable Output Voltage Down to Compatible with DDR2
● Integrated DDR/DDR2 Reference Buffer
● Integrated VIDPGD to Indicated VTT_GMCH/CPU Operational
● All Regulator Outputs Monitored by Under Voltage Protection
● DDR/DDR2 VDDQ and Bus Terminator VTT Also Integrated Over Voltage Protection
● Integrated Thermal Shut Down
● RoHS Compliant and 100% Lead (Pb)-Free

Applications
● Motherboard, Desktop Servers : Single/Dual channel DDR/DDR2ACPI compliant
● Graphic Card : GPU and memory supply
● IA Equipments
● Telecomm Equipments
● DSP, ASIC or embedded processor and IO supplies
● High Power DC-DC Regulators

Номер в каталоге(s) : QFN-16C QFN-16C
AME
AME, Inc
Компоненты Описание : QFN-16C (3x3x0.75mm)

QFN-16C (3x3x0.75mm)

Номер в каталоге(s) : QFN-16B QFN-16B
AME
AME, Inc
Компоненты Описание : QFN-16B (4x4x0.75mm)

QFN-16B (4x4x0.75mm)

Компоненты Описание : 7-Bit, Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller

 GENERAL DESCRIPTION
The ADP3212/NCP3218 is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3212/NCP3218 is optimized for converting the notebook battery voltage into the core supply voltage required by high performance Intel processors. An internal 7-bit DAC is used to read a VID code directly from the processor and to set the CPU core voltage to a value within the range of 0.3 V to 1.5 V. The ADP3212/NCP3218 is programmable for 1-, 2-, or 3-phase operation. The output signals ensure interleaved 2- or 3-phase operation.
The ADP3212/NCP3218 uses a multimode architecture run at a programmable switching frequency and optimized for efficiency depending on the output current requirement. The ADP3212/NCP3218 switches between single- and multi-phase operation to maximize efficiency with all load conditions. The chip includes a programmable load line slope function to adjust the output voltage as a function of the load current so that the core voltage is always optimally positioned for a load transient. The ADP3212/NCP3218 also provides accurate and reliable short circuit protection, adjustable current limiting, and a delayed power-good output. The IC supports on-the-fly output voltage changes requested by the CPU.
The ADP3212/NCP3218 are specified over the extended commercial temperature range of -40°C to 100°C. The ADP3212 is available in a 48-lead QFN 7x7mm 0.5 mm pitch package. The NCP3218 is available in a 48-lead QFN 6x6mm 0.4 mm pitch package. Except for the packages, the ADP3212 and NCP3218 are identical. ADP3212 and NCP3218 are Halogen Free, Pb-Free and RoHS compliant.

 FEATURES
   Single-chip solution
      Fully compatible with the Intel® IMVP-6.5™ specifications
   Selectable 1- , 2-, or 3-phase operation with up to 1 MHz per
      phase switching frequency
   Phase 1 and Phase 2 Integrated MOSFET drivers
   Input Voltage Range of 3.3 V to 22 V
   Guaranteed ±8 mV worst-case differentially sensed core
      voltage error over temperature
   Automatic power-saving mode maximizes efficiency with
      light load during deeper sleep operation
   Active current balancing between output phases
   Independent current limit and load line setting inputs for
      additional design flexibility
   Built-in power-good blanking supports
      voltage identification (VID) on-the-fly transients
   7-bit, digitally programmable DAC with 0.3 V to 1.5 V output
   Short-circuit protection with programmable latch-off delay
   Clock enable output <delays the CPU clock until the core
      voltage is stable
   Output power or current monitor options
      48-lead QFN 6x6mm (NCP3218)
      48-lead QFN 7x7mm (ADP3212)

APPLICATIONS
   Notebook power supplies for next-generation Intel processors  

Номер в каталоге(s) : RT8859M RT8859MGQW RT8859MZQW
Richtek
Richtek Technology
Компоненты Описание : Multi-Phase PWM Controller for CPU Core Power Supply

General Description

The RT8859M is a VR12/IMVP7 compliant CPU power controller which includes two voltage rails : a 4/3/2/1 phase synchronous buck controller, the CORE VR, and a single phase buck controller, the AXG VR. The RT8859M adopts G-NAVP™ (Green Native AVP), which is RICHTEK's proprietary topology derived from finite DC gain compensator with current mode control, making it an easy setting PWM controller, meeting all Intel CPU requirements of AVP (Active Voltage Positioning).



Features

4/3/2/1 + 1 Phase PWM Controller

G-NAVP™ Topology

Serial VID Interface

0.5% DAC Accuracy

Differential Remote Voltage Sensing

Built-in ADC for Platform Programming

Accurate Current Balance

System Thermal Compensated AVP

Diode Emulation Mode at Light Load Condition for

Multiple and Single Phase

Fast Transient Response

VR12 / IMVP7 Compatible Power Management States

VR Ready Indicator

Thermal Throttling

Current Monitor Output

Switching Frequency up to 1MHz per Phase

OVP, UVP, OCP, NVP, UVLO

Slew Rate Setting/Address Flip Function

External No-Load Offset Setting for both Rails

DVID Improvement

Small 56-Lead WQFN Package

RoHS Compliant and Halogen Free


Номер в каталоге(s) : RT7257E RT7257EN RT7257ENZSP
Richtek
Richtek Technology
Компоненты Описание : 3A, 17V, 340kHz Synchronous Step-Down Converter

The RT7257E is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 17V input supply.



The RT7257E's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors.



Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start-up.



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Номер в каталоге(s) : RT8207 RT8207GQW
Richtek
Richtek Technology
Компоненты Описание : Complete DDRII/DDRIII Memory Power Supply Controller

General Description

The RT8207 provides a complete power supply for both DDRII/DDRIII memory systems. It integrates a synchronous PWM buck controller with a 3A sink/source tracking linear regulator and a buffered low noise reference.



Features

 PWM Controller

   ` Resistor Programmable Current Limit by Low-Side RDS(ON) Sense

   ` Quick Load-Step Response within 100ns

   ` 1% VOUT Accuracy Over Line and Load

   ` Fixed 1.8V (DDRII), 1.5V (DDRIII) or Adjustable 0.75V to 3.3V Output Range

   ` Battery Input Range 2.5V to 26V

   ` Resistor Programmable Frequency

   ` Over/Under Voltage Protection

   ` 4 Steps Current Limit During Soft-Start

   ` Drives Large Synchronous-Rectifier FETs

   ` Power-Good Indicator

 3A LDO (VTT), Buffered Reference (VTTREF)

   ` Capable to Sink and Source Up to 3A

   ` LDO Input Available to Optimize Power Losses

   ` Requires Only 20μF Ceramic Output Capacitor

   ` Buffered Low Noise 10mA VTTREF Output

   ` Accuracy ±20mV for Both VTTREF and VTT

   ` Supports High-Z in S3 and Soft-Off in S4/S5

 RoHS Compliant and Halogen Free



Applications

DDRII/DDRIII Memory Power Supplies

Notebook Computers

SSTL18, SSTL15 and HSTL Bus Termination



 



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