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參數(shù)資料
| 型號： | MAX1673ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Regulated, 125mA-Output, Charge-Pump DC-DC Inverter |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 515 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 81K |
| 代理商： | MAX1673ESA |
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.
________________General Desc ription
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
applications.
This device also features a 1μA logic-controlled shut-
down mode and is available in a standard 8-pin SO
package. For a device that delivers about 10mA and
fits in a smaller package, refer to the MAX868.
________________________Applic ations
Hard Disk Drives
Camcorders
Analog Signal-Processing
Applications
Measurement Instruments
Modems
Digital Cameras
____________________________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
M
Regulated, 125mA-Output,
Charge-Pump DC-DC Inverter
________________________________________________________________ Maxim Integrated Products
1
FB
OUT
SHDN
1
2
8
7
IN
GND
CAP+
CAP-
LIN/SKIP
SO
TOP VIEW
3
4
6
5
MAX1673
MAX1673
IN
INPUT 2V TO5.5V
REGULATED
NEGATIVE
OUTPUT
(UP TO-1 x V
IN
,
UP TO125mA)
LIN/SKIP
FB
OUT
GND
CAP+
ON
OFF
SHDN
CAP-
Typic al Operating Circ uit
___________________Pin Configuration
19-1334; Rev 0; 1/98
PART
MAX1673ESA
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
8 SO
_______________Ordering Information
On-Demand is a trademark of Maxim Integrated Products.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1673ESA+ | 功能描述:電荷泵 Regulated 125mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX1673ESA+T | 功能描述:電荷泵 Regulated 125mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX1673ESA-T | 功能描述:電荷泵 Regulated 125mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX1674EUA | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1674EUA+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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