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參數(shù)資料
| 型號： | DS21Q48N |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PBGA144 |
| 封裝： | BGA-144 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大小： | 296K |
| 代理商： | DS21Q48N |
MAX863
Dual, High-Efficiency, PFM, Step-Up
DC-DC Controller
16
______________________________________________________________________________________
___________________Chip Information
TRANSISTOR COUNT: 858
SUBSTRATE CONNECTED TO GND
Step-Up/Down SEPIC Converter
and 12V Supply
The circuit in Figure 9 provides a buck/boost function for
applications where the input voltage range can be
greater than or less than VOUT1. It provides 3.3V (up to
600mA) or 5V, as well as 12V (up to 200mA at VIN = 2.4V)
for powering flash memory or analog functions.
The main output employs a SEPIC topology using a
coupled inductor and a capacitor to transfer energy to
the output. C2 must be a low-ESR type capable of
withstanding high ripple current. Ceramic and Sanyo
OS-CONs work well, but low-ESR aluminum electrolyt-
ics (which are less costly) are tolerable. Do not use a
tantalum capacitor for C2. C2’s voltage rating must be
higher than the maximum input voltage. The MOSFET
must withstand a voltage equal to the sum of the input
and output voltages; i.e., when converting 11V to 3.3V,
the MOSFET must withstand 14.3V. The dual Schottky
diode D3 bootstraps power to the MAX863, allowing
use of the low-voltage start-up oscillator, as well as
improved gate-drive voltages during normal operation.
________________________________________________________Package Information
QSOP.EPS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q48NB | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q50 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Quad E1 Transceiver |
| DS21Q50L | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q50L+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q50L-C01 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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