參數(shù)資料
型號(hào)： MAX653CPA+
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters
中文描述： 1 A SWITCHING REGULATOR, PDIP8
封裝： PLASTIC, DIP-8
文件頁(yè)數(shù)： 1/13頁(yè)
文件大小： 772K
代理商： MAX653CPA+
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.
________________________________________________________________ Maxim Integrated Products
1
_______________General Description
The MAX639/MAX640/MAX653 step-down switching
regulators provide high efficiency over a wide range of
load currents, delivering up to 225mA. A current-limiting
pulse-frequency-modulated (PFM) control scheme gives
the devices the benefits of pulse-width-modulated
(PWM) converters (high efficiency at heavy loads), while
using only 10A of supply current (vs. 2mA to 10mA for
PWM converters). The result is high efficiency over a
wide range of loads.
The MAX639/MAX640/MAX653 input range is 4V to
11.5V, and the devices provide lower preset output volt-
ages of 5V, 3.3V, and 3V, respectively. Or, the output
can be user-adjusted to any voltage from 1.3V to the
input voltage.
The MAX639/MAX640/MAX653 have an internal 1A power
MOSFET switch, making them ideal for minimum-compo-
nent, low- and medium-power applications. For increased
output drive capability, use the MAX649/MAX651/MAX652
step-down controllers, which drive an external P-channel
FET to deliver up to 5W.
________________________Applications
9V Battery to 5V, 3.3V, or 3V Conversion
High-Efficiency Linear Regulator Replacement
Portable Instruments and Handy-Terminals
5V-to-3.3V Converters
____________________________Features
High Efficiency for a Wide Range of Load Currents
10A Quiescent Current
Output Currents Up to 225mA
Preset or Adjustable Output Voltage:
5.0V (MAX639)
3.3V (MAX640)
3.0V (MAX653)
Low-Battery Detection Comparator
Current-Limiting PFM Control Scheme
______________Ordering Information
Ordering Information continued on last page.
*Contact factory for dice specifications.
MAX639/MAX640/MAX653
5V/3.3V/3V/Adjustable, High-Efficiency,
Low IQ, Step-Down DC-DC Converters
19-4505; Rev 4; 7/05
PART
TEMP RANGE
PIN-PACKAGE
MAX639CPA
0°C to +70°C
8 Plastic DIP
MAX639CSA
0°C to +70°C
8 SO
MAX639C/D
0°C to +70°C
Dice*
1
2
3
4
5
8
7
6
MAX639
MAX640
MAX653
DIP/SO
TOP VIEW
VFB
SHDN
V+
LX
VOUT
LBO
LBI
GND
__________________Pin Configuration
GND
MAX639
SHDN
LX
VOUT
LBO
LOW-BATTERY
DETECTOR
OUTPUT
ON/OFF
LBI
LOW-BATTERY
DETECTOR
INPUT
OUTPUT
5V
225mA
INPUT
5.5V TO 11.5V
V+
VFB
__________Typical Operating Circuit
MAX639ESA
-40°C to +85°C
8 SO
MAX639EPA
-40°C to +85°C
8 Plastic DIP
MAX639MJA
-55°C to +125°C
8 CERDIP
相關(guān)PDF資料
PDF描述
MAX653CSA+ 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters
MAX653CSA+T 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters
MAX653ESA+ 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters
MAX653ESA+T 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters
MAX6575HZUT+ SOT Temperature Sensor with Multidrop Single Wire Digital Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX653CPA+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/3V or Adj Low-IQ Step-Down 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
MAX653CSA 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
MAX653CSA+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/3V or Adj Low-IQ Step-Down 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
MAX653CSA+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/3V or Adj Low-IQ Step-Down 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
MAX653CSA-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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*