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參數(shù)資料
| 型號(hào)： | LM2853MH-1.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3A 550 kHz Synchronous SIMPLE SWITCHER Buck Regulator |
| 中文描述： | 5 A SWITCHING REGULATOR, 725 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | TSSOP-14 |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 620K |
| 代理商： | LM2853MH-1.0 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
AVIN, PVIN, EN, SNS, SW, SS
ESD Susceptibility (Note 2)
Power Dissipation
Storage Temperature Range
Maximum Junction Temp.
0.3V to 6.0V
2kV
Internally Limited
65C to +150C
150C
14-Pin Exposed Pad TSSOP Package
Infrared (15 sec)
Vapor Phase (60 sec)
Soldering (10 sec)
220C
215C
260C
Operating Ratings
(Note 1)
PVIN to GND
AVIN to GND
Junction Temperature
1.5V to 5.5V
3.0V to 5.5V
40C to +125C
Electrical Characteristics
type apply over the full Junction Temperature Range (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. Unless otherwise specified AVIN = PVIN = 5V.
Specifications with standard typeface are for T
J
= 25C, and those in bold face
Symbol
SYSTEM PARAMETERS
V
OUT
Parameter
Conditions
Min
Typ
Max
Units
Voltage Tolerance (Note 3)
V
OUT
= 0.8V option
V
OUT
= 1.0V option
V
OUT
= 1.2V option
V
OUT
= 1.5V option
V
OUT
= 1.8V option
V
OUT
= 2.5V option
V
OUT
= 3.0V option
V
OUT
= 3.3V option
V
OUT
= 0.8V, 1.0V, 1.2V, 1.5V,
1.8V or 2.5V
3.0V
≤
AVIN
≤
5.5V
V
OUT
= 3.0V or 3.3V
3.5V
≤
AVIN
≤
5.5V
Normal operation
Rising
Falling Hysteresis
Isw = 3A
Isw = 3A
0.782
0.9775
1.1730
1.4663
1.7595
2.4437
2.9325
3.2257
0.8
1.0
1.2
1.5
1.8
2.5
3.0
3.3
0.2
0.818
1.0225
1.227
1.5337
1.8405
2.5563
3.0675
3.3743
1.1
V
V
OUT
/
AVIN
Line Regulation (Note 3)
%
0.2
1.1
%
V
OUT
/
I
O
V
ON
Load Regulation
UVLO Threshold (AVIN)
2
mV/A
V
mV
m
m
k
A
mA
μA
k
2.47
155
40
32
450
5
0.85
12
432
3.0
260
120
100
50
R
DS(ON)-P
R
DS(ON)-N
R
SS
I
CL
I
Q
I
SD
R
SNS
PWM
f
osc
D
range
ENABLE CONTROL
(Note 4)
V
IH
PFET On Resistance
NFET On Resistance
Soft-Start Resistance
Peak Current Limit Threshold
Operating Current
Shutdown Quiescent Current
Sense Pin Resistance
3.6
Non-switching
EN = 0V
2
50
Switching Frequency
Duty Cycle Range
.
325
0
550
725
100
kHz
%
EN Pin Minimum High Input
75
% of
AVIN
% of
AVIN
μA
V
IL
EN Pin Maximum Low Input
25
I
EN
EN Pin Pullup Current
EN = 0V
1.5
L
www.national.com
3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2853MH-2.5 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2853MH-2.5/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2853MH-2.5/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
| LM2853MH-3.0 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2853MH-3.0/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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