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SC70封装、反相电荷泵,带有关断

SC70反向电荷泵,提供关断功能

产品详情

主要特征

Parametric specs for Charge Pumps
Topology Inverter
Unregulated
VIN (V) (min) 2.5
VIN (V) (max) 5.5
IOUT (A) (typ) 0.03
Unadj. VOUT (V) -VIN
ICC (mA) (max) 0.32
Switching Frequency (kHz) 200
Oper. Temp. (°C) -40 to +85
Package/Pins SC70/6
Budgetary
Price (See Notes)
0.8
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参量

Parametric specs for Charge Pumps
Topology Inverter
Unregulated
VIN (V) (min) 2.5
VIN (V) (max) 5.5
IOUT (A) (typ) 0.03
Unadj. VOUT (V) -VIN
ICC (mA) (max) 0.32
Switching Frequency (kHz) 200
Oper. Temp. (°C) -40 to +85
Package/Pins SC70/6
Budgetary
Price (See Notes)
0.8

主要特征

  • 30mA Output Current
  • Low 15Ω Output Resistance
  • 68µA Supply Current (MAX1852)
  • Requires Only Two 0.68µF Capacitors (MAX1853)
  • +2.5V to +5.5V Input Voltage Range
  • 0.1µA Logic-Controlled Shutdown
  • Two Switching Frequencies
    • 50kHz (MAX1852)
    • 200kHz (MAX1853)
  • Slew-Rate Limited to Reduce EMI
  • Ultra-Small 6-Pin SC70 Package

应用/用途

  • 电池供电应用
  • GaAsFET偏置电源
  • 手持终端、PDA
  • 从+5V或+3.3V逻辑电源产生负电源
  • 小型LCD板

描述

The MAX1852/MAX1853 monolithic, CMOS charge-pump voltage inverters in the ultra-small SC70 package feature a low 15Ω output resistance, permitting loads up to 30mA with maximum efficiency. The MAX1852/MAX1853 are available with operating frequencies of 50kHz and 200kHz, respectively, allowing optimization of supply current or external component size. Small external components and micropower shutdown mode make these devices ideal for both battery-powered and board-level voltage conversion applications.

Oscillator control circuitry and four power-MOSFET switches are included on-chip. Applications include generating a negative supply from a +5V or +3.3V logic supply to power analog circuitry. Both versions come in a 6-pin SC70 package that is 40% smaller than a SOT23.

简化框图

MAX1852、MAX1853:典型工作电路 MAX1852、MAX1853: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