MAX1044：开关电容电压转换器 _ BDTIC 中国领先电子元器件代理商

MAX1044：开关电容电压转换器

20mA电荷泵，采用工业标准引脚排列

The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, double, divide, or multiply a positive input voltage. They are pin compatible with the industry-standard ICL7660 and LTC1044. Operation is guaranteed from 1.5V to 10V with no external diode over the full temperature range. They deliver 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency above the audio band and reduces external capacitor size requirements. The MAX1044/ICL7660 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. For applications requiring more power, the MAX660 delivers up to 100mA with a voltage drop of less than 0.65V.

关键特性

Miniature µMAX Package
1.5V to 10.0V Operating Supply Voltage Range
98% Typical Power-Conversion Efficiency
Invert, Double, Divide, or Multiply Input Voltages
BOOST Pin Increases Switching Frequencies (MAX1044)
No-Load Supply Current: 200µA Max at 5V
No External Diode Required for Higher-Voltage Operation

ICL7660、MAX1044：典型工作电路

应用

从+5V逻辑电源产生-5V电源
数据采集
EIA/TIA-232E和EIA/TIA-562电源
手持式仪表(PDA、掌上电脑)
运算放大器电源
面板表
个人通信设备
便携式电话

数据手册DataSheet

语言	下载文件	备注
英文	ICL7660-MAX1044.pdf	Rev 1; 07/1994

关键参数

Part Number	Topology	V_IN (V)	V_IN (V)	I_CC (mA)	Unadj. V_OUT (V)	I_OUT (A)	Oper. Freq. (kHz)	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	Topology	min	max	max	Unadj. V_OUT (V)	typ	Oper. Freq. (kHz)	Oper. Temp. (°C)	Package/Pins	See Notes
ICL7660	Doubler Inverter Unregulated	1.5	10	0.175	+2xVIN -VIN	0.02	10	-40 to +85 0 to +70	µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 TO99/8	$1.11 @1k
MAX1044	Doubler Inverter Unregulated	1.5	10	0.2	+2xVIN -VIN	0.02	20	-40 to +85 0 to +70	CDIP(N)/8 PDIP(N)/8 SOIC(N)/8	$1.15 @1k

技术资料

质量和环境数据

MAX1044.pdf

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX1044CPA	停止供货	MAX1044CPA+	PDIP(N),；8引脚；79.7mm²	0°C至+70°C	RoHS/无铅：否
MAX1044CPA+	生产中		PDIP(N),；8引脚；79.7mm²	0°C至+70°C	RoHS/无铅：无铅
MAX1044CSA	停止供货	MAX1044CSA+	SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：否
MAX1044CSA+	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX1044CSA+T	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX1044CSA-T	停止供货	MAX1044CSA+T	N.SO；8引脚	0°C至+70°C	参考数据资料
MAX1044EPA	停止供货	MAX1044EPA+	PDIP(N),；8引脚；79.7mm²	-40°C至+85°C	RoHS/无铅：否
MAX1044EPA+	生产中		PDIP(N),；8引脚；79.7mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX1044ESA	停止供货	MAX1044ESA+	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否
MAX1044ESA+	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
型号	状况	推荐替代产品	封装：类型引脚占位面积封装图编码/变更 *	温度	RoHS/无铅？
MAX1044ESA+T	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX1044ESA-T	停止供货	MAX1044ESA+T	N.SO；8引脚	-40°C至+85°C	参考数据资料
MAX1044MJA	生产中		CDIP(N),；8引脚；82.6mm²	-55°C至+125°C	RoHS/无铅：否
MAX1044MJA/883B	生产中		CDIP(N),；8引脚；82.6mm²	-55°C至+125°C	RoHS/无铅：否