參數(shù)資料
型號(hào)： LM3477AMM
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： High Efficiency High-Side N-Channel Controller for Switching Regulator
中文描述： 1 A SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, PDSO8
封裝： MSOP-8
文件頁(yè)數(shù)： 3/23頁(yè)
文件大?。?/td> 815K
代理商： LM3477AMM
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 1)
Input Voltage
Peak Driver Output Current (
<
10μs)
CB Pin Voltage (Note 2)
I
SEN
Pin Voltage
Power Dissipation
Storage Temperature Range
Junction Temperature
ESD Susceptibilty (Note 3)
Human Body Model
Machine Model
36V
1.0A
43V
500mV
Internally Limited
65C to +150C
+150C
2kV
200V
Lead Temperature for MSOP Package
Vapor Phase (60 sec.)
Infared (15 sec.)
215C
220C
Operating Ratings
(Note 1)
Supply Voltage
Junction
Temperature Range
2.97V
≤
V
IN
≤
35V
40C
≤
T
J
≤
+125C
Electrical Characteristics
(Note 4)
Specifications in Standard type face are for T
J
= 25C, and in
bold type face
apply over the full
Operating Temperature
Range
. Unless otherwise specified, V
IN
= 12V.
Symbol
Parameter
Conditions
V
FB
Feedback Voltage
V
COMP
= 1.4V,
2.97V
≤
V
IN
≤
36V
Typical
1.270
Limit
Units
V
V(min)
V(max)
%/V
1.260/
1.252
1.288/
1.290
V
LINE
Feedback Voltage Line
Regulation
Output Voltage Load Regulation
Input Undervoltage Lock-out
2.97V
≤
V
IN
≤
36V
0.001
V
LOAD
V
UVLO
±
0.5
2.87
%/V (max)
2.97
V
V(max)
mV
mV (min)
mV (max)
kHz
kHz(min)
kHz(max)
V
UV(HYS)
Input Undervoltage Lock-out
Hysteresis
180
130
225
F
SW
Switching Frequency
500
435
575
R
DS1 (ON)
Driver Switch On Resistance
(top)
Driver Switch On Resistance
(bottom)
Maximum Boot Voltage
I
DR
= 0.2A, V
IN
= 5V
7
R
DS2 (ON)
I
DR
= 0.2A
4
(V
CB
V
SW
)
max
V
IN
<
7.2V
V
IN
≥
7.2V
V
IN
7.2
93
V
D
max
Maximum Duty Cycle
88
%
%(min)
nsec
nsec(min)
nsec(max)
mA
mA (max)
μA
μA (max)
T
min
(on)
Minimum On Time
330
230
495
I
SUPPLY
Supply Current (switching)
(Note 5)
2.0
3.0
I
Q
Quiescent Current in Shutdown
Mode
(Note 6), V
IN
= 5V
5
8
L
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相關(guān)PDF資料
PDF描述
LM3477AMMX High Efficiency High-Side N-Channel Controller for Switching Regulator
LM3477MM High Efficiency High-Side N-Channel Controller for Switching Regulator
LM3477MMX High Efficiency High-Side N-Channel Controller for Switching Regulator
LM3478 High Efficiency Low-Side N-Channel Controller for Switching Regulator
LM3478MM High Efficiency Low-Side N-Channel Controller for Switching Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3477AMM/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
LM3477AMMX 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
LM3477AMMX/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
LM3477EVAL 功能描述:電源管理IC開發(fā)工具 EVAL KIT FOR LM3477 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM3477MM 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
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