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3.3V输入、稳压输出5V的电荷泵

每100mA输出只需1µF电容

产品详情

The MAX682/MAX683/MAX684 charge-pump regulators generate 5V from a 2.7V to 5.5V input. They are specifically designed to serve as high-efficiency auxiliary supplies in applications that demand a compact design. The MAX682, MAX683, and MAX684 deliver 250mA, 100mA, and 50mA output current, respectively.

These complete 5V regulators require only one resistor and three external capacitors—no inductors are needed. High switching frequencies (externally adjustable up to 2MHz) and a unique regulation scheme allow the use of capacitors as small as 1µF per 100mA of output current. The MAX683/MAX684 are offered in a space-saving 8-pin µMAX package that is only 1.1mm high, while the MAX682 is available in an 8-pin SO.

主要特征

  • Ultra-Small: 1µF Capacitors per 100mA of Output Current
  • No Inductors Required
  • 1.1mm Height in µMAX Package (MAX683/MAX684)
  • Up to 250mA Output Current (MAX682)
  • Regulated ±4% Output Voltage
  • 50kHz to 2MHz Adjustable Switching Frequency
  • 2.7V to 5.5V Input Voltage
  • 100µA Quiescent Current in Pulse-Skipping Mode
  • 0.1µA Shutdown Current

应用/用途

  • 3.3V至5V本地转换应用
  • 3V至5V GSM SIMM卡
  • 备用电池升压转换器
  • 电池供电应用
  • 闪存电源
  • 微型设备
  • PCMCIA卡
Parametric specs for Charge Pumps
Topology Regulated
VIN (V) (min) 2.7
VIN (V) (max) 5.5
IOUT (A) (typ) 0.25
Unadj. VOUT (V) 5
ICC (mA) (max) 0.18
Switching Frequency (kHz) 1000
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
Budgetary
Price (See Notes)
$2.60 @1k
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简化框图

MAX682、MAX683、MAX684:典型工作电路 MAX682、MAX683、MAX684:典型工作电路 Zoom icon

技术文档

数据资料 3.3V输入、稳压输出5V的电荷泵 Aug 01, 1998

设计与质量

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支持和培训

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参量

Parametric specs for Charge Pumps
Topology Regulated
VIN (V) (min) 2.7
VIN (V) (max) 5.5
IOUT (A) (typ) 0.25
Unadj. VOUT (V) 5
ICC (mA) (max) 0.18
Switching Frequency (kHz) 1000
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
Budgetary
Price (See Notes)
$2.60 @1k

主要特征

  • Ultra-Small: 1µF Capacitors per 100mA of Output Current
  • No Inductors Required
  • 1.1mm Height in µMAX Package (MAX683/MAX684)
  • Up to 250mA Output Current (MAX682)
  • Regulated ±4% Output Voltage
  • 50kHz to 2MHz Adjustable Switching Frequency
  • 2.7V to 5.5V Input Voltage
  • 100µA Quiescent Current in Pulse-Skipping Mode
  • 0.1µA Shutdown Current

应用/用途

  • 3.3V至5V本地转换应用
  • 3V至5V GSM SIMM卡
  • 备用电池升压转换器
  • 电池供电应用
  • 闪存电源
  • 微型设备
  • PCMCIA卡

描述

The MAX682/MAX683/MAX684 charge-pump regulators generate 5V from a 2.7V to 5.5V input. They are specifically designed to serve as high-efficiency auxiliary supplies in applications that demand a compact design. The MAX682, MAX683, and MAX684 deliver 250mA, 100mA, and 50mA output current, respectively.

These complete 5V regulators require only one resistor and three external capacitors—no inductors are needed. High switching frequencies (externally adjustable up to 2MHz) and a unique regulation scheme allow the use of capacitors as small as 1µF per 100mA of output current. The MAX683/MAX684 are offered in a space-saving 8-pin µMAX package that is only 1.1mm high, while the MAX682 is available in an 8-pin SO.

简化框图

MAX682、MAX683、MAX684:典型工作电路 MAX682、MAX683、MAX684:典型工作电路 Zoom icon

技术文档

数据资料 3.3V输入、稳压输出5V的电荷泵 Aug 01, 1998

支持和培训

在Maxim的知识库中搜索您所需的答案。

过滤搜索

Maxim专业的应用工程师团队也可以为您解答技术问题,请 访问Maxim的 支持中心