IC manufacturers Monolithic Power Systems

IC manufacturers (97)

Monolithic Power Systems NB685 | Demoboard EVNB685-Q-01A

26V, Low IQ, High Current Synchronous Buck Converter With+/-1A and Bufferd Refference

Overview

TopologyBuck Converter
Input voltage4.5-26 V
Output 11.35 V / 12 A
IC revisionRev.1.0

Description

The NB685 provides a complete power supply for DDR3, DDR3L, LPDDR3, and DDR4 memory with the highest power density. It integrates a high frequency synchronous rectified step-down switch mode converter (VDDQ) with a 1A sink/source LDO (VTT) and buffered low noise reference (VTTREF). The NB685 operates at high efficiency over a wide output current load rang based on MPS proprietary switching loss reduction tech and internal low Ron power MOSFETs.

Features

 Wide 4.5V to 26V Operating Input Range

  • Compatible for IMVP8
  • 135uA low quiescent Current
  • 12A Continous Output Current
  • Selectable Ultrasonic Mode
  • Selectable 500k/700k Switching Frequency
  • Built-in +/- 1A VTTLDO
  • 1% Buffered VTTREF Output
  • Adaptive COT for Fast transient
  • DC Auto Tune Loop
  • Stable with POSCAP and Ceramic OutputCap
  • Over Temperature Warning
  • Internal Soft Start
  • Output Discharge
  • OCL, OVP, UVP, OTP
  • Latch off Reset via EN or Power Cycle

Typical applications

  • Networking Systems and Server
  • Laptop Computer
  • Distributed Power Systems

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
MaterialOperation Force (Value)
(g)
SchematicPackaging Samples
744311068SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-HCI SMT Flat Wire High Current Inductor 0.68 20.9 9.5 20 3.1 105 Superflux
450301014042SPEC
5 files Active i| Production is active. Expected lifetime: >10 years.WS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm 800 SPDT Bulk
Order Code Data­sheet Simu­lation
744311068SPEC
450301014042SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
MaterialOperation Force (Value)
(g)
SchematicPackaging Samples