參數(shù)資料
型號： LM2744
廠商： National Semiconductor Corporation
英文描述： Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference
中文描述： 低壓N溝道MOSFET同步降壓穩(wěn)壓控制器與外部參考
文件頁數(shù)： 3/22頁
文件大?。?/td> 663K
代理商： LM2744
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
CC
BOOT Voltage
All other pins
Junction Temperature
Storage Temperature
Soldering Information
Lead Temperature
(soldering, 10sec)
-0.3 to 7V
-0.3 to 21V
-0.3 to V
CC
+ 0.3V
150C
65C to 150C
260C
Infrared or Convection (20sec)
ESD Rating (Note 3)
235C
2 kV
Operating Ratings
Supply Voltage Range (V
CC
)
Junction Temperature Range
(T
J
)
Thermal Resistance (
θ
JA
)
Voltage on FB and V
REF
3V to 6V
40C to +125C
155C/W
0.5V to 1.5V
Electrical Characteristics
V
CC
= 3.3V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
A
= T
J
= 25C. Limits appearing in
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis.
Symbol
V
ON
Parameter
Conditions
Min
Typ
2.76
2.42
Max
Units
UVLO Thresholds
Rising
Falling
V
CC
= 3.3V, V
SD
= 3.3V
Fsw = 600kHz
V
CC
= 5V, V
SD
= 3.3V
Fsw = 600kHz
V
CC
= 3.3V, V
SD
= 0V
V
FB
Rising
V
FB
Falling
V
SS
= 0V
V
SS
= 2.5V
V
I
Q_VCC
Operating V
CC
Current
1.0
1.5
2.1
mA
1.0
1.7
2.1
Shutdown V
CC
Current
PWGD Pin Response Time
PWGD Pin Response Time
SS Pin Source Current
SS Pin Sink Current During
Over Current
I
SEN
Pin Source Current Trip
Point
1
6
6
10
25
μA
μs
μs
μA
t
PWGD1
t
PWGD2
I
SS-ON
I
SS-OC
5
15
90
μA
I
SEN-TH
20
40
60
μA
ERROR AMPLIFIER
V
OS
Error Amplifier Input Offset
Voltage
Error Amplifier Unity Gain
Bandwidth
Error Amplifier DC Gain
Error Amplifier Slew Rate
EAO Pin Current Sourcing and
Sinking Capability
Error Amplifier Output Voltage
-8
1
8
mV
GBW
9
MHz
G
SR
I
EAO
106
3.2
2.6
9.2
0
2
dB
V/μs
V
EAO
= 1.5, FB = 0.55V
V
EAO
= 1.5, FB = 0.65V
Minimum
Maximum
mA
V
EA
V
V
L
www.national.com
3
相關(guān)PDF資料
PDF描述
LM2796TL Dual-Display White LED Driver with 3/2x Switched Capacitor Boost
LM2796TLX Dual-Display White LED Driver with 3/2x Switched Capacitor Boost
LM2796 Dual-Display White LED Driver with 3/2x Switched Capacitor Boost
LM2925 Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
LM2925T Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2744EVAL 功能描述:電源管理IC開發(fā)工具 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM2744MTC 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM2744MTC/NOPB 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM2744MTCX 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM2744MTCX/NOPB 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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

*
*
*