參數資料
型號: LM2830ZMFX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: High Frequency 1.0A Load - Step-Down DC-DC Regulator
中文描述: 1.75 A SWITCHING REGULATOR, 3750 kHz SWITCHING FREQ-MAX, PDSO5
封裝: SOT-23, 5 PIN
文件頁數: 4/24頁
文件大?。?/td> 862K
代理商: LM2830ZMFX
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN
FB Voltage
EN Voltage
SW Voltage
ESD Susceptibility
Junction Temperature (Note 2)
-0.5V to 7V
-0.5V to 3V
-0.5V to 7V
-0.5V to 7V
2kV
150C
Storage Temperature
Soldering Information
Infrared or Convection Reflow
(15 sec)
65C to +150C
220C
Operating Ratings
VIN
Junction Temperature
3V to 5.5V
40C to +125C
Electrical Characteristics
standard type are for T
= 25C only; limits in
boldface type
apply over the junction temperature (T
) range of -40C to
+125C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent
the most likely parametric norm at T
J
= 25C, and are provided for reference purposes only.
VIN = 5V unless otherwise indicated under the
Conditions
column. Limits in
Symbol
Parameter
Conditions
Min
0.588
Typ
0.600
Max
0.612
Units
V
FB
Feedback Voltage
LLP-6 and SOT23-5
Package
V
IN
= 3V to 5V
V
V
FB
/V
IN
I
B
Feedback Voltage Line Regulation
Feedback Input Bias Current
0.02
0.1
2.73
2.3
0.43
1.6
3.0
94
90
5
7
150
130
1.75
%/V
nA
V
100
2.90
UVLO
Undervoltage Lockout
V
IN
Rising
V
IN
Falling
1.85
UVLO Hysteresis
V
F
SW
Switching Frequency
LM2830-X
LM2830-Z
LM2830-X
LM2830-Z
LM2830-X
LM2830-Z
LLP-6 Package
SOT23-5 Package
V
IN
= 3.3V
1.2
2.25
86
82
1.95
3.75
MHz
D
MAX
Maximum Duty Cycle
%
D
MIN
Minimum Duty Cycle
%
R
DS(ON)
Switch On Resistance
m
195
I
CL
Switch Current Limit
Shutdown Threshold Voltage
Enable Threshold Voltage
Switch Leakage
Enable Pin Current
1.2
A
V
EN_TH
0.4
V
1.8
I
SW
I
EN
100
100
3.3
4.3
30
nA
nA
mA
mA
nA
Sink/Source
LM2830X V
FB
= 0.55
LM2830Z V
FB
= 0.55
All Options V
EN
= 0V
I
Q
Quiescent Current (switching)
5
6.5
Quiescent Current (shutdown)
L
www.national.com
4
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相關代理商/技術參數
參數描述
LM2830ZMFX/NOPB 功能描述:直流/直流開關調節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2830ZQMF/NOPB 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2830ZQMFE/NOPB 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2830ZQMFX/NOPB 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2830ZSD 功能描述:直流/直流開關調節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5