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參數(shù)資料
| 型號： | MAX1817 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP |
| 中文描述： | 緊湊的、高效率、雙輸出、升壓型DC-DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 403K |
| 代理商： | MAX1817 |
General Description
The MAX1817 is a compact, high-efficiency, dual-out-
put step-up converter for portable devices that pro-
vides both the main logic supply and the LCD bias. The
device operates from an input voltage of +1.5V to
+5.5V, allowing the use of 2- or 3-cell alkaline batteries,
or 1-cell lithium-ion (Li+) batteries.
The MAX1817’s main regulator supplies 125mA at
either a preset 3.3V or an adjustable 2.5V to 5.5V out-
put voltage with up to 88% efficiency. A 0.1μA shut-
down state also minimizes battery drain. The
MAX1817’s secondary step-up converter provides the
LCD bias voltage and is adjustable up to +28V.
Other features include a fast switching frequency to
reduce the size of external components and a low qui-
escent current to maximize battery life. Both outputs can
be independently shut down for improved flexibility.
The MAX1817 is supplied in a compact 10-pin μMAX
package. The MAX1817 evaluation kit (MAX1817EVKIT)
is available to speed up design.
________________________Applications
Organizers/Translators
PDAs
MP3 Players
GPS Receivers
Features
o
Dual Step-Up Converter in a Tiny 10-Pin μMAX
Package
o
Main Output
Up to 125mA Load Current
Fixed 3.3V or Adjustable 2.5V to 5.5V
Up to 88% Efficiency
Internal Switch
o
LCD Output
Up to 28V for LCD Bias
Internal Switch
o
Input Voltage Range +1.5V to +5.5V
o
Minimal External Components Required
o
0.1μA Logic-Controlled Shutdown
o
Low 15μA Quiescent Supply Current
M
Compact, High-Efficiency, Dual-Output
Step-Up DC-DC Converter
________________________________________________________________
Maxim Integrated Products
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
1
2
3
4
5
10
9
8
7
6
OUT
LX
GND
LXLCD
FBLCD
ONLCD
ON
FB
MAX1817
μ
MAX
TOP VIEW
N.C.
AGND
Pin Configuration
MAX1817
LX
ONLCD
ON
FB
OUT
FBLCD
LCD ON/OFF
+1.5V
TO +5.5V
MAIN ON/OFF
MAIN
LCD
AGND
GND
LXLCD
Typical Operating Circuit
19-1794 Rev 0; 10/00
Ordering Information
TEMP. RANGE
-40
°
C to +85
°
C
PART
PIN-PACKAGE
10 μMAX
MAX1817EUB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1817EUB | Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP -40 to 85 |
| MAX1822 | High-Side Power Supply |
| MAX1822ESA | High-Side Power Supply |
| MAX1823 | Dual USB Switch with Fault Blanking and Autoreset |
| MAX1823AEUB | Replaced by TMS320BC52 : |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1817EUB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Output 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 安裝風格:SMD/SMT |
| MAX1817EUB+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Output 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 安裝風格:SMD/SMT |
| MAX1817EUB+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Output 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 安裝風格:SMD/SMT |
| MAX1817EUB-T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Output 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 安裝風格:SMD/SMT |
| MAX1817EVKIT | 制造商:Maxim Integrated Products 功能描述:COMPACT, HIGH-EFFICIENCY, DUAL-OUTPUT STEP-UP - Bulk |
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