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| 型号： | MAX1673ESA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHD CAP INV ADJ 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 切换式电容器（充电泵），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | -1.5 V ~ -5.5 V |
| 输入电压： | 2 V ~ 5.5 V |
| 频率 - 开关： | 350kHz |
| 电流 - 输出： | 125mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SOIC |
| 产品目录页面： | 1410 (CN2011-ZH PDF) |
19-1334; Rev 0; 1/98
Regulated, 125mA-Output,
Charge-Pump DC-DC Inverter
________________General Description
The MAX1673 charge-pump inverter provides a low-
cost, compact means of generating a regulated nega-
tive output from a positive input at up to 125mA. It
requires only three small capacitors, and only two resis-
tors to set its output voltage. The input range is 2V to
5.5V. The regulated output can be set from 0V to -V IN in
Skip regulation mode or -1.5V to -V IN in Linear (LIN)
regulation mode.
In Skip mode, the MAX1673 regulates by varying its
switching frequency as a function of load current. This
On-Demand ? switching gives the MAX1673 two
advantages: very small capacitors and very low quies-
cent supply current. At heavy loads, it transfers energy
from the input to the output by switching at up to
350kHz. It switches more slowly at light loads, using
only 35μA quiescent supply current.
In Linear mode, the MAX1673 switches at a constant
350kHz at all loads and regulates by controlling
the current-path resistance. This provides constant-
frequency ripple, which is easily filtered for low-noise
____________________________Features
o Regulated Negative Output Voltage
(up to -1 x V IN )
o 125mA Output Current
o 35μA Quiescent Supply Current
(Skip-mode regulation)
o 350kHz Fixed-Frequency, Low-Noise Output
(Linear-mode regulation)
o 2V to 5.5V Input Range
o 1μA Logic-Controlled Shutdown
_______________Ordering Information
applications.
This device also features a 1μA logic-controlled shut-
down mode and is available in a standard 8-pin SO
PART
MAX1673ESA
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 SO
package. For a device that delivers about 10mA and
fits in a smaller package, refer to the MAX868.
________________________Applications
Hard Disk Drives
Camcorders
Analog Signal-Processing
Applications
Measurement Instruments
Modems
Digital Cameras
Typical Operating Circuit
INPUT 2V TO 5.5V
___________________Pin Configuration
TOP VIEW
ON
OFF
SHDN
IN
FB
REGULATED
NEGATIVE
OUTPUT
LIN/SKIP
CAP+
1
2
8
7
IN
GND
CAP+
MAX1673
OUT
(UP TO -1 x V IN ,
UP TO 125mA)
CAP-
3
MAX1673
6
FB
CAP-
LIN/SKIP
GND
SHDN 4
5
OUT
SO
On-Demand? is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1673ESA+ | 功能描述:电荷泵 Regulated 125mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1673ESA+T | 功能描述:电荷泵 Regulated 125mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1673ESA-T | 功能描述:电荷泵 Regulated 125mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1674EUA | 功能描述:直流/直流开关转换器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1674EUA+ | 功能描述:直流/直流开关转换器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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