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2.5V–5.5V, 3A Reversible Buck/Boost Regulator for Backup Power Applications

Continua™ Family of Backup Power Regulators Using Super Capacitor or Capacitor Bank

产品详情

主要特征

Parametric specs for Battery Chargers
Charging VIN (V) (max) 5.5
Max. ICHG (A) 3
Cell Chemistry Supercapacitor
Charger (V) 0.5 to 5.5
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
2.45
Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 0.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 3
Switch Type Internal
Output Adjust. Method Resistor
ICC (mA) (typ) 0.075
Shutdown Mode Supply Current (µA) (typ) 0.001
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Design Tools EE-Sim
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
2.45
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Technical Docs

支持和培训

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参量

Parametric specs for Battery Chargers
Charging VIN (V) (max) 5.5
Max. ICHG (A) 3
Cell Chemistry Supercapacitor
Charger (V) 0.5 to 5.5
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
2.45
Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 0.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 3
Switch Type Internal
Output Adjust. Method Resistor
ICC (mA) (typ) 0.075
Shutdown Mode Supply Current (µA) (typ) 0.001
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=29529', '')
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
2.45

主要特征

  • 2.5V to 5.5V System Output Voltage Range
  • 0.5V to 5.5V Supercapacitor Voltage Range
  • ±1% Threshold Accuracy
  • 2.5% Hysteresis between Backup and Charging
  • 1A to 3A Peak Inductor Current Limit
    • Peak Inductor Current Is Pin-Programmable over 1A to 3A through External Resistor
  • 94% Peak Efficiency, Charging or Discharging Mode
  • 4µA Quiescent Current in Ready State
    • After Supercapacitor Is Charged, Draws only 4µA of Quiescent Current
  • Ready and Backup State Outputs
    • RDY and BKB Flags Provide Real-Time Status to System
  • 3mm x 3mm, 16-Pin TQFN Package

应用/用途

  • Aftermarket Automotive Tracking
  • Handheld Industrial Equipment
  • Industrial Sensor and Actuators
  • Portable Devices/Computers with Removable Battery

描述

简化框图

MAX38889: Simplified Application Diagram MAX38889: Simplified Application Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心