參數(shù)資料
型號： LM2984
廠商： National Semiconductor Corporation
英文描述： Microprocessor Power Supply System
中文描述： 微機(jī)電源系統(tǒng)
文件頁數(shù)： 6/16頁
文件大?。?/td> 398K
代理商： LM2984
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
Pin Name
V
IN
R
t
C
t
μP
mon
C
mon
Ground
Reset
ON/OFF
V
standby
V
buffer
V
OUT
Comments
Positive supply input voltage
Sets internal timing currents
Sets power-up reset delay timing
Microcomputer monitor input
Sets μC monitor timing
Regulator ground
Reset error flag output
Enables/disables high current regulators
Standby regulator output (7.5 mA)
Buffer regulator output (100 mA)
Main regulator output (500 mA)
External Components
Component
Typical Value
Component
Range
0.47 μF–10 μF
24k–510k
0.033 μF–3.3 μF
0.001 μF–0.1 μF
1k–100k
Comments
C
IN
R
t
C
t
C
tc
R
tc
1 μF
130k
0.33 μF
0.01 μF
10k
Required if device is located far from power supply filter.
Sets internal timing currents.
Sets power-up reset delay.
Establishes time constant of AC coupled computer monitor.
Establishes time constant of AC coupled computer monitor. (See
applications section.)
Sets time window for computer monitor. Also determines period and pulse
width of computer malfunction reset. (See applications section.)
Load for open collector reset output. Determined by computer reset input
requirements.
A 10 μF is required for stability but larger values can be used to maintain
regulation during transient conditions.
A 10 μF is required for stability but larger values can be used to maintain
regulation during transient conditions.
A 10 μF is required for stability but larger values can be used to maintain
regulation during transient conditions.
C
mon
0.47 μF
0.047 μF–4.7 μF
R
rst
10k
5k–100k
C
stby
10 μF
10 μF–no bound
C
buf
10 μF
10 μF–no bound
C
OUT
10 μF
10 μF–no bound
www.national.com
6
相關(guān)PDF資料
PDF描述
LM302 LM102/LM302 Voltage Followers
LM102 Voltage Followers
LM3075 High Efficiency, Synchronous Current Mode Buck Controller
LM3075MTC High Efficiency, Synchronous Current Mode Buck Controller
LM3075MTCX High Efficiency, Synchronous Current Mode Buck Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2984CT 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LM2984CT/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LM2984T 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LM2984T/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LM2990J-12-QML 制造商:National Semiconductor Corporation 功能描述:LDO Regulator Neg -12V 1.8A 16-Pin CDIP Tray 制造商:National Semiconductor 功能描述:LDO Regulator Neg -12V 1.8A 16-Pin CDIP Tray
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

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

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*