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28V内置开关、LCD偏置电源,提供True Shutdown™

LCD偏置电源,内置开关,输出电压高达28V,具有True Shutdown功能

产品详情

主要特征

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 0.8
VIN (V) (max) 5.5
VOUT1 (V) (min) 1.25
VOUT1 (V) (max) 28
IOUT1 (A) (max) 0.02
Switch Type Internal
Output Adjust. Method Resistor
ICC (mA) (typ) 0.16
Shutdown Mode Supply Current (µA) (typ) 0.1
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins UMAX/8
Budgetary
Price (See Notes)
1.95
缩小

简化框图

Technical Docs

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参量

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 0.8
VIN (V) (max) 5.5
VOUT1 (V) (min) 1.25
VOUT1 (V) (max) 28
IOUT1 (A) (max) 0.02
Switch Type Internal
Output Adjust. Method Resistor
ICC (mA) (typ) 0.16
Shutdown Mode Supply Current (µA) (typ) 0.1
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins UMAX/8
Budgetary
Price (See Notes)
1.95

主要特征

  • Adjustable Output Voltage up to 28V
  • 20mA at 20V from a Single Li+ Battery
  • True Shutdown (Output Disconnected from Input)
  • Output Short-Circuit Protection
  • 88% Efficiency
  • Up to 500kHz Switching Frequency
  • Selectable Inductor Current Limit (125mA, 250mA, or 500mA)
  • 0.1µA Shutdown Current
  • 8-Pin µMAX Package

应用/用途

  • 蜂窝电话/无绳电话
  • 手持终端
  • LCD偏置发生器
  • 数字助理
  • 掌上电脑
  • PDA及其它手持设备

描述

The MAX1606 is a step-up DC-DC converter that contains a 0.5A internal power switch and a 0.5A output isolation switch in an 8-pin µMAX® package. The IC operates from a 2.4V to 5.5V supply voltage but can boost battery voltages as low as 0.8V up to 28V.

The MAX1606 uses a unique control scheme that provides high efficiency over a wide range of load conditions. An internal 0.5A MOSFET reduces external component count, and a high switching frequency (up to 500kHz) allows for tiny surface-mount components. The current limit can be set to 500mA, 250mA, or 125mA, allowing the user to reduce the output ripple and component size in low-current applications.

Additional features include a low quiescent supply current and a true shutdown mode that saves power by disconnecting the output from the input. The MAX1606 is ideal for small LCD panels with low current requirements but can also be used in other applications. A MAX1606 evaluation kit is available to help speed up design time.

简化框图

MAX1606:典型工作电路 MAX1606:典型工作电路 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