參數(shù)資料
型號: LM2639MX/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 8700 kHz SWITCHING FREQ-MAX, PDSO24
封裝: PLASTIC, SOIC-24
文件頁數(shù): 11/11頁
文件大?。?/td> 198K
代理商: LM2639MX/NOPB
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
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LM2639 5-Bit Programmable, High Frequency Multi-
phase PWM Controller
151
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3-
Feb-
00
LM2639 5-Bit Programmable, High Frequency Multi-
phase PWM Controller (JAPANESE)
390
Kbytes
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Package Availability, Models, Samples & Pricing
Part Number
Package
Status
Models
Samples &
Electronic
Orders
Budgetary Pricing
Std
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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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