- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄30745 > LM2575HVT-ADJFLOWLB03 (NATIONAL SEMICONDUCTOR CORP) 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 PDF資料下載
參數(shù)資料
| 型號(hào)： | LM2575HVT-ADJFLOWLB03 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大小： | 856K |
| 代理商： | LM2575HVT-ADJFLOWLB03 |
Liteon Semiconductor Corporation
LSP3130
PWM Control 2A Step-Down Converter
Rev1.2
3/7
Thermal Resistance
Junction to Case
θJC
60
°C/W
Over temperature shutdown
TSD
150
°C
Over temperature shutdown
Hysteresis
THYS
25
°C
FUNCTIONAL BLOCK DIAGRAM
FUNCTIONAL DESCROPTION
PWM Control
The LSP3130 consists of DC/DC converters that employ a pulse-width modulation (PWM) system. In converters of
the LSP3130, the pulse width varies in a range from 0 to 100%, according to the load current. The ripple voltage
produced by the switching can easily be removed through a filter because the switching frequency remains constant.
Therefore, these converters provide a low-ripple power over broad ranges of input voltage and load current.
Under Voltage Lockout
The under voltage lockout circuit of the LSP3130 assures that the high-side MOSFET driver outputs remain in the off
state whenever the supply voltage drops below 3.3V. Normal operation resumes once VCC rises above 3.5V.
RDS(ON) Current Limiting
The current limit threshold is setting by the external resistor connecting from VCC supply to OCSET. The internal
100uA sink current crossing the resistor sets the voltage at the pin of OCSET. When the PWM voltage is less than
the voltage at OCSET, an over-current condition is triggered.
I PEAK ×R DS(ON) =I OCSET × R OCSET
See above formula for setting the current limit value
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2575T-12FLOWLB03 | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575HVT-12LB03 | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PZFM5 |
| LM2575HVT-3.3FLOWLB03 | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575T-3.3FLOWLB03 | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575T-5.0LB03 | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PZFM5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575HVTADJNOPB | 制造商:NATIONAL 功能描述:Pb Free |
| LM2575IKC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575IKTGR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575IKTT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575IKTTR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。