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参数资料
| 型号： | LM2639MX/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 8700 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | PLASTIC, SOIC-24 |
| 文件页数： | 11/11页 |
| 文件大小： | 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
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
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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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| LM26400YEVAL | 功能描述:BOARD EVALUATION LM26400Y RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM26400YEVAL/NOPB | 功能描述:电源管理IC开发工具 LM26400Y EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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