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參數(shù)資料
| 型號： | MAX1790EUA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low-Noise Step-Up DC-DC Converters |
| 中文描述： | 1.2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MO-187CAA, MICRO, SOP-8 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 288K |
| 代理商： | MAX1790EUA |
General Description
The MAX1790/MAX8715 boost converters incorporate
high-performance (at 1.2MHz), current-mode, fixed-fre-
quency, pulse-width modulation (PWM) circuitry with a
built-in 0.21
Ω
/0.15
Ω
n-channel MOSFET to provide a high-
ly efficient regulator with fast response.
High switching frequency (640kHz or 1.2MHz selectable)
allows easy filtering and faster loop performance. An
external compensation pin provides the user flexibility in
determining loop dynamics, allowing the use of small, low
equivalent-series-resistance (ESR) ceramic output capaci-
tors. The device can produce an output voltage as high as
12V from an input as low as 2.6V.
Soft-start is programmed with an external capacitor, which
sets the input-current ramp rate. In shutdown mode, cur-
rent consumption is reduced to 0.1μA. The MAX1790/
MAX8715 are available in a space-saving 8-pin μMAX
package. The ultra-small package and high switching fre-
quency allow the total solution to be less than 1.1mm high.
μMAX is a registered trademark of Maxim Integrated Products,
Inc.
Applications
LCD Displays
PCMCIA Cards
Portable Applications
Hand-Held Devices
Typical Operating Circuit
Features
90% Efficiency
Adjustable Output from V
IN
to 12V
1.6A, 0.21
Ω
, 14V Power MOSFET (MAX1790)
2.4A, 0.15
Ω
, 14V Power MOSFET (MAX8715)
+2.6V to +5.5V Input Range
Pin-Selectable 640kHz or 1.2MHz Switching
Frequency
0.1μA Shutdown Current
Programmable Soft-Start
Small 8-Pin μMAX Package
M
Low-Noise Step-Up DC-DC Converters
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
IN
LX
GND
1
2
8
7
SS
FREQ
FB
COMP
μ
MAX
TOP VIEW
3
4
6
5
MAX1790
MAX8715
SHDN
LX
IN
V
IN
2.6V TO 5V
GND
FREQ
V
OUT
COMP
SHDN
FB
MAX1790
MAX8715
ON/OFF
SS
19-1563; Rev 3; 9/05
EVALUATION KIT
AVAILABLE
Pin Configuration
Ordering Information
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 μMAX
8 μMAX
8 μMAX
8 μMAX
MAX1790
EUA
MAX1790EUA+
MAX8715
EUA
MAX8715EUA+
+
Denotes lead-free package.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX8715 | Low-Noise Step-Up DC-DC Converters |
| MAX8715EUA | Low-Noise Step-Up DC-DC Converters |
| MAX1800EVKIT | Evaluation Kit for the MAX1800/MAX1801 |
| MAX180AEQL | Single-Ended Data Acquisition System |
| MAX180BCQL | Single-Ended Data Acquisition System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1790EUA+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Low-Noise Step-Up 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 |
| MAX1790EUA+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Low-Noise Step-Up 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 |
| MAX1790EUA+-T | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 8PIN UMAX - Tape and Reel |
| MAX1790EUA-T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| MAX1790EVKIT | 功能描述:電源管理IC開發(fā)工具 MAX1790 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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