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參數(shù)資料
| 型號： | LM5010MH |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | TSSOP-14 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 453K |
| 代理商： | LM5010MH |
Pin Description
PIN NUMBER
LLP-10
1
NAME
SW
DESCRIPTION
APPLICATION INFORMATION
Internally connected to the buck switch source.
Connect to the inductor, free-wheeling diode, and
bootstrap capacitor.
Connect a 0.022 μF capacitor from SW to this pin.
The capacitor is charged from V
CC
via an internal
diode during each off-time.
The re-circulating current flows through the internal
sense resistor, and out of this pin to the
free-wheeling diode. Current limit is nominally set at
1.25A.
Re-circulating current flows into this pin to the
current sense resistor.
Ground for all internal circuitry other than the current
limit detection.
Internally connected to the regulation and
over-voltage comparators. The regulation level is
2.5V.
An internal 11.5 μA current source charges an
external capacitor to 2.5V, providing the softstart
function.
An external resistor from V
IN
to this pin sets the
buck switch on-time. Grounding this pin shuts down
the regulator.
Nominally regulates at 7.0V. An external voltage
(7.5V-14V) can be applied to this pin to reduce
internal dissipation. An internal diode connects V
CC
to V
IN
.
Nominal input range is 8.0V to 75V.
No internal connection.
TSSOP-14
2
Switching Node
2
3
BST
Boost pin for bootstrap capacitor
3
4
I
SEN
Current sense
4
5
S
GND
Sense Ground
5
6
RTN
Circuit Ground
6
9
FB
Feedback input from the
regulated output
7
10
SS
Softstart
8
11
R
ON
/SD
On-time control and shutdown
9
12
V
CC
Output from the startup regulator
10
13
V
IN
NC
Input supply voltage
No connection.
1,7,8,14
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 |
|---|---|
| LM5010MH/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Hi Vltg 1A Step Down Switching Reg 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 |
| LM5010MH/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
| LM5010MHX | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 8V to 75V 14-Pin TSSOP EP T/R |
| LM5010MHX/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 |
| LM5010SD | 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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