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MAX1631AEAI+ +BOM

Buck Regulator Positive Output Step-Down DC-DC Controller IC 28-SSOP

  • Manufacturer:

    Analog Devices Inc./Maxim Integrated

  • Mfr.Part #:

    MAX1631AEAI+

  • Datasheet:

    MAX1631AEAI+ Datasheet (PDF) pdf-icon

  • Output Type:

    Transistor Driver

  • Function:

    Step-Down

  • Output Configuration:

    Positive

  • Topology:

    Buck

MAX1631AEAI+ General Description

The MAX1630A–MAX1635A are buck-topology, stepdown, switch-mode, power-supply controllers that generate logic-supply voltages in battery-powered systems. These high-performance, dual-/triple-output devices include on-board power-up sequencing, power-good signaling with delay, digital soft-start, secondary winding control, low-dropout circuitry, internal frequency-compensation networks, and automatic bootstrapping.

Key Features

  • 96% Efficiency
  • +4.2V to +30V Input Range
  • 2.5V to 5.5V Dual Adjustable Outputs
  • Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™)
  • 12V Linear Regulator
  • Adjustable Secondary Feedback (MAX1631A/MAX1634A)
  • 5V/50mA Linear Regulator Output
  • Precision 2.5V Reference Output
  • Programmable Power-Up Sequencing
  • Power-Good (Active-Low RESET) Output
  • Output Overvoltage Protection (MAX1630A/MAX1631A/MAX1632A)
  • Output Undervoltage Shutdown (MAX1630A/MAX1631A/MAX1632A)
  • 200kHz/300kHz Low-Noise, Fixed-Frequency Operation
  • Low-Dropout, 99% Duty-Factor Operation
  • 2.5mW Typical Quiescent Power (+12V Input, Both SMPSs On)
  • 4µA Typical Shutdown Current
  • 28-Pin SSOP Package

Application

  • Desktop CPU Local DC-DC Converters
  • Notebook and Subnotebook Computers
  • PDAs and Mobile Communicators

Specifications

Series - Output Type Transistor Driver
Function Step-Down Output Configuration Positive
Topology Buck Number of Outputs 2
Output Phases 1 Voltage - Supply (Vcc/Vdd) 4.2V ~ 30V
Frequency - Switching 200kHz ~ 300kHz Duty Cycle (Max) 99%
Synchronous Rectifier Yes Clock Sync Yes
Serial Interfaces - Control Features Enable, Reset, Sequencing
Operating Temperature -40°C ~ 85°C (TA) Mounting Type Surface Mount
Base Product Number MAX1631

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In Stock: 6,495

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $16.103 $16.10
200+ $6.232 $1,246.40
500+ $6.012 $3,006.00
1000+ $5.905 $5,905.00

The prices below are for reference only.