MAX8627

Low VBATT, 20µA IQ, 1MHz Synchronous Boost Converter with True Shutdown

Ideal for DSC Motors and Backup Power


Please check latest availability status for a specific part variant.

Description

The MAX8627 step-up converter is a high-efficiency, low-quiescent current, synchronous boost converter with True Shutdown and inrush current limiting. The MAX8627 generates any boosted output voltage from 3V to 5V from either a 2-cell NiMH/NiCd or a single-cell Li+/Li polymer battery.

Quiescent current is only 20µA (typ), and at light loads the converter pulses only as needed for best efficiency. At higher loads, PWM mode maintains fixed 1MHz operation for lowest noise and ripple.

The MAX8627 includes an internal soft-start to limit inrush current to a maximum of 500mA. Additional features include True Shutdown, internal compensation, and adjustable current limit. The MAX8627 is available in a tiny 3mm x 3mm TDFN package and is ideal for use in handheld devices such as DSCs, PDAs, and smartphones.
MAX8627: Typical Operating Circuit MAX8627: Typical Operating Circuit Enlarge+

Key Features

  • 1MHz PWM Switching Frequency
  • True Shutdown Output
  • Up to 95% Efficiency
  • 1.0A Guaranteed Output Current
  • Soft-Start Eliminates Inrush Current
  • 20µA (typ) Quiescent Current
  • 0.1µA Logic-Controlled Shutdown
  • Internal Synchronous Rectifier
  • Internal Compensation
  • Adjustable Current Limit
  • Low-Noise Antiringing Feature
  • Tiny 14-Pin, 3mm x 3mm, TDFN Package

Applications/Uses

  • Cell Phones, PDAs, MP3 Players
  • DSC Motors and Backup Power
  • Microprocessor/DSP Core Power
  • Portable Handheld Devices

See parametric specs for Step-Up Switching Regulators (101)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Switch TypeOper. Freq.
(kHz)
FeaturesPackage/PinsBudgetary
Price
minmaxminmaxmaxSee Notes
MAX8627 0.95.5151Internal1000
Current Limit
Fixed Freq./PWM
True Shutdown
TDFN/14
$1.34 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX8627EVKIT: Evaluation Kit for the MAX8627

Technical Documents

Tutorial 2031 DC-DC Converter Tutorial
Product Reliability Reports: MAX8627.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

Related Resources


MAX20710
Integrated, Step-Down Switching Regulator with PMBus

  • High Power Density and Low Component Count
  • Optimized Component Performance and Efficiency with Reduced Design-In Time
  • Increased Power-Supply Reliability with System and IC Self-Protection Features

MAX17760
4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20430
Four-Output Mini PMIC for Safety Applications

  • Multiple Functions for Small Size
  • High-Precision for ASIL Applications
  • Diagnostics and Redundant Circuits

MAX18066
High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

  • Feature Integration Shrinks Solution Size
  • High Efficiency Conserves Power
  • Safe, Reliable, Accurate Operation

MAX18166
High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

  • Feature Integration Shrinks Solution Size
  • High Efficiency Conserves Power
  • Safe, Reliable, Accurate Operation

MAX77511
10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

  • 3A/Phase Configurable Buck Regulator
  • 2.3V to 10V Input Voltage Range
  • 0.25V to 5.2V Output Voltage Range

MAX77711
10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

  • 3A/Phase Configurable Buck Regulator
  • 2.3V to 10V Input Voltage Range
  • 0.25V to 5.2V Output Voltage Range

MAX15158, MAX15158A
High-Voltage Multiphase Boost Controller

  • Wide Operating Range
  • Integration Reduces Design Footprint
  • Robust Fault Protection Improves Quality and Reliability

MAX15158A
High-Voltage Multiphase Boost Controller

  • Wide Operating Range
  • Integration Reduces Design Footprint
  • Robust Fault Protection Improves Quality and Reliability

MAX25201
36V Automotive Low-IQ 200kHz to 2.2MHz Synchronous Boost Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz

  • MAX25202
    36V Automotive Low-IQ 200kHz to 2.2MHz Synchronous Boost Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz

  • MAX25200
    36V Automotive Low-IQ 200kHz to 2.2MHz Sepic/Flyback Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • 20μA Quiescent Current in Skip Mode
  • ±1.5% FB Voltage Accuracy

  • MAX20499
    Automotive Core Power Supply 5V, 8A/12A Step-Down Converter

  • High-Efficiency DC-DC Converter
  • Up to 12A peak output current:
    • MAX20499A: 8A
    • MAX20499B: 12A
  • Differential Remote Voltage Sensing

  • MAX20075D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20076D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20076E
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX25276D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    Type ID Title
    Tutorial 2031 DC-DC Converter Tutorial