部品番号 : MAX17480
詳細 : AMD 2-/3-Output Mobile Serial VID Controller
メーカー : Maxim Integrated
ピン配置図 :
部品情報 :
General Description
The MAX17480 is a triple-output, step-down, fixed frequency controller for AMD’s serial VID interface (SVI) CPU and northbridge (NB) core supplies. The MAX17480 consists of two high-current SMPSs for the CPU cores and one 4A internal switch SMPS for the NB core. The two CPU core SMPSs run 180° out-of-phase for true interleaved operation, minimizing input capacitance. The 4A internal switch SMPS runs at twice the switching
frequency of the core SMPS, reducing the size of the external components.
The MAX17480 is fully AMD SVI compliant. Output voltages are dynamically changed through a 2-wire SVI,allowing the SMPSs to be individually programmed to different voltages. A slew-rate controller allows controlled transitions between VID codes and controlled soft-start. SVI also allows each SMPS to be individually set into a low-power pulse-skipping state.
Features
♦Dual-Output Fixed-Frequency Core Supply Controller
Split or Combinable Outputs Detected at Power-Up
Dynamic Phase Selection Optimizes
Active/Sleep Efficiency
Transient Phase Repeat Reduces Output Capacitance
True Out-of-Phase Operation Reduces Input Capacitance
Programmable AC and DC Droop
Accurate Current Balance and Current Limit
Integrated Drivers for Large Synchronous
Rectifier MOSFETs
Programmable 100kHz to 600kHz Switching Frequency
4V to 26V Battery Input Voltage Range
♦4A Internal Switch Northbridge SMPS
2.7V to 5.5V Input Voltage Range
2x Programmable Switching Frequency
75mΩ/40mΩPower Switches
♦±0.5% VOUTAccuracy over Line, Load, and
Temperature
♦AMD SVI-Compliant Serial Interface with
Switchable Address
♦7-Bit On-Board DAC: 0 to +1.550V Output Adjust Range
♦Integrated Boost Switches
♦Adjustable Slew-Rate Control
♦Power-Good (PWRGD) and Thermal-Fault
(VRHOT) Outputs
♦System Power-OK (PGD_IN) Input
♦Overvoltage, Undervoltage, and Thermal-Fault
Protection
♦Voltage Soft-Startup and Passive Shutdown
♦< 1µA Typical Shutdown Current
データシート PDF ダウンロード
ファイル内の他のデータシート :
MAX17480,MAX17480GTL+
