參數(shù)資料
型號(hào)： L5980
廠商： 意法半導(dǎo)體
英文描述： 0.7A step-down switching regulator
中文描述： 0.7A的降壓開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù)： 1/37頁(yè)
文件大?。?/td> 959K
代理商： L5980
October 2007
Rev 2
1/37
37
L5980
0.7A step-down switching regulator
Features
0.7A DC output current
2.9V to 18V input voltage
Output voltage adjustable from 0.6V
250kHz switching frequency, programmable
up to 1MHz
Internal soft-start and inhibit
Low dropout operation: 100% duty cycle
Voltage feed-forward
Zero load current operation
Over current and thermal protection
VQFN3x3-8L package
Applications
Consumer:
STB, DVD, DVD recorder, car audio, LCD TV
and monitors
Industrial:
Chargers, car battery, PLD, PLA, FPGA
Networking: XDSL, modems, DC-DC modules
Computer:
Optical storage, hard disk drive, printers,
audio/graphic cards
Figure 1.
Application circuit
Description
The L5980 is step down switching regulator with
1A current limited embedded power MOSFET, so
it is able to deliver in excess of 0.7A DC current to
the load depending on the application condition.
The input voltage can range from 2.9V to 18V,
while the output voltage can be set starting from
0.6V to V
IN
. Having a minimum input voltage of
2.9V, the device is suitable also for 3.3V bus.
Requiring a minimum set of external components,
the device includes an internal 250kHz switching
frequency oscillator that can be externally
adjusted up to 1MHz.
The QFN package with exposed pad allows
reducing the R
thJA
down to approximately
60°C/W.
VFQFPN8 3x3
www.st.com
相關(guān)PDF資料
PDF描述
L5980TR 0.7A step-down switching regulator
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L5985TR 2A step-down switching regulator
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L5980_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:0.7 A step-down switching regulator
L5980TR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 700mA Step-Down Switching Reg RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L5980TR-CUT TAPE 制造商:ST 功能描述:L5980 Series 15 V 250 kHz 0.7 A Step Down Switching Regulator - VFQFPN-8
L5981 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1A STEP-DOWN SWITCH REG RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L5981_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1 A step-down switching regulator
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