參數(shù)資料
型號(hào)： LM2639MWC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 8700 kHz SWITCHING FREQ-MAX, UUC
封裝： WAFER
文件頁數(shù)： 11/11頁
文件大?。?/td> 198K
代理商： LM2639MWC
National P/N LM2639 - 5-Bit Programmable, High Frequency Multi-phase PWM Controller
LM2639 Product Folder
5-Bit Programmable, High Frequency Multi-phase PWM Controller
Generic P/N 2639
Parametric Table
Multiple Output Capability
No
On/Off Pin
Yes
Error Flag
Yes
Input Voltage, min (Volt)
4.75
Input Voltage, max (Volt)
5.25
Output Current, max
Set by External FET
Output Voltage (Volt)
-
Adjustable Output Voltage
Yes
Switching Frequency (Hz)
8000000
Adjustable Switching Frequency
Yes
Sync Pin
Yes
Efficiency (%)
-
Flyback
No
Inverting
No
Step-Up
No
Step-Down
Yes
Datasheet
Title
Size in
Kbytes Date
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LM2639 5-Bit Programmable, High Frequency Multi-
phase PWM Controller
151
Kbytes
3-
Feb-
00
LM2639 5-Bit Programmable, High Frequency Multi-
phase PWM Controller (JAPANESE)
390
Kbytes
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Package Availability, Models, Samples & Pricing
Part Number
Package
Status
Models
Samples &
Electronic
Orders
Budgetary Pricing
Std
Pack
Size
Type Pins MSL
SPICE IBIS
Qty
$US each
LM2639EVAL
evaluation board
Full
production
N/A
1+
$100.0000
1
-
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2639.html (1 of 3) [Aug-09-2002 2:39:11 PM]
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2639MX 制造商:Texas Instruments 功能描述:
LM2639MX/NOPB 功能描述:IC CTRLR MULTIPHASE PWM 24-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應(yīng)用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-TQFN-EP（8x8） 包裝:管件
LM2640 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Adjustable Step-Down Switching Power Supply Controller
LM26400Y 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 2A, 500kHz Wide Input Range Buck Regulator
LM26400Y_0708 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 2A, 500kHz Wide Input Range Buck Regulator
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