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内置30V开关的LCD偏置电源

产品详情

主要特征

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 2.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 28
IOUT1 (A) (max) 0.02
Switch Type Internal
Output Adjust. Method Resistor
ICC (mA) (typ) 0.018
Shutdown Mode Supply Current (µA) (typ) 0.1
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
1.84
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参量

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 2.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 28
IOUT1 (A) (max) 0.02
Switch Type Internal
Output Adjust. Method Resistor
ICC (mA) (typ) 0.018
Shutdown Mode Supply Current (µA) (typ) 0.1
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
1.84

主要特征

  • Adjustable Output Voltage up to 30V
  • 20mA at 20V from a Single Li+ Battery
  • 88% Efficiency
  • Up to 500kHz Switching Frequency
  • Selectable Inductor Current Limit (125mA, 250mA, or 500mA)
  • 18µA Operating Supply Current
  • 0.1µA Shutdown Current
  • Avaiable in Two Small Packages
    • 6-Pin TDFN
    • 6-Pin SOT23

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 MAX1605 boost converter contains a 0.5A internal switch in a tiny 6-pin SOT23 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 30V at the output.

The MAX1605 uses a unique control scheme providing the highest 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 shutdown mode to save power. The MAX1605 is ideal for small LCD panels with low current requirements, but can also be used in other applications. A MAX1605EVKIT evaluation kit (EV kit) is available to help speed up design time.

简化框图

MAX1605:典型工作电路 MAX1605: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