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LM1770

LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

LM1770

具有無需外部補(bǔ)償組件的低電壓 SOT23 同步降壓控制器; ? Input Voltage Range of 2.8V to 5.5V\n? 0.8V Reference Voltage\n? No Compensation Required\n? Constant Frequency Across Input Range\n? Low Quiescent Current of 400μA\n? Internal Soft-start\n? Short Circuit Protection\n? 5-Pin SOT-23 Package\n;

The LM1770 is an efficient synchronous buck switching controller in a tiny SOT-23 package. The constant on-time control scheme provides a simple design free of compensation components, allowing minimal component count and board space. It also incorporates a unique input feed-forward to maintain a constant frequency independent of the input voltage. The LM1770 is optimized for a low voltage input range of 2.8V to 5.5V and can provide an adjustable output as low as 0.8V. Driving an external high side PFET and low side NFET it can provide efficiencies as high as 95%.\nThree versions of the LM1770 are available depending on the switching frequency desired for the application. Nominal switching frequencies are in the range of 100kHz to 1000kHz.\n\n

TITexas Instruments

德州儀器美國德州儀器公司

LM1770

SOT-23 Synchronous Buck Controller

NSCNational Semiconductor (TI)

美國國家半導(dǎo)體美國國家半導(dǎo)體公司

LM1770

Synchronous Buck Controller

TI1Texas Instruments

德州儀器美國德州儀器公司

LM1770SMFSLASHNOPB

LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

LM1770SMFSLASHNOPB.A

LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

LM1770TMF/NOPB

絲?。?a target="_blank" title="Marking" href="/skkb/marking.html">SKKB；Package：SOT-23；LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

LM1770TMF/NOPB.A

絲?。?a target="_blank" title="Marking" href="/skkb/marking.html">SKKB；Package：SOT-23；LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

LM1770TMFSLASHNOPB

絲?。?a target="_blank" title="Marking" href="/skkb/marking.html">SKKB；Package：SOT-23；LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

LM1770TMFSLASHNOPB.A

絲印：SKKB；Package：SOT-23；LM1770 Low-Voltage SOT-23 Synchronous Buck Controller With No External Compensation

1FEATURES 2?InputVoltageRangeof2.8Vto5.5V ?0.8VReferenceVoltage ?NoCompensationRequired ?ConstantFrequencyAcrossInputRange ?LowQuiescentCurrentof400μA ?InternalSoft-start ?ShortCircuitProtection ?5-PinSOT-23Package APPLICATIONS ?SimpleToDesign,HighEf

TI2Texas Instruments

德州儀器美國德州儀器公司

技術(shù)參數(shù)

  • Vin(Max)(V)：

    5.5

  • Vout(Min)(V)：

    0.8

  • Vout(Max)(V)：

    4.5

  • Iout(Max)(A)：

    4

  • Regulated outputs(#)：

    1

  • Number of Phases：

    1

  • Switching frequency(Min)(kHz)：

    500

  • Switching frequency(Max)(kHz)：

    2000

  • Iq(Typ)(mA)：

    0.4

  • Features：

    Light Load Efficiency

  • Duty cycle(Max)(%)：

    98

  • Operating temperature range(C)：

    -40 to 125

  • Rating：

    Catalog

  • Package Group：

    SOT-23

  • Type：

    Controller

  • Control mode：

    Constant on-time (COT)

供應(yīng)商型號品牌批號封裝庫存備注價格
TI
24+
SOT-23|5
279100
免費(fèi)送樣原盒原包現(xiàn)貨一手渠道聯(lián)系
 詢價
TI/德州儀器
23+
13000
原廠授權(quán)一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種
 詢價
TI德州儀器
22+
24000
原裝正品現(xiàn)貨,實單可談,量大價優(yōu)
 詢價
TI/德州
2018+
Controller
32500
德州代理承諾銷售原裝正品公司可開正規(guī)17%增值稅票
 詢價
ns
23+
SOT-23-5
9823
詢價
原廠正品
23+
SOT23-5
8000
原裝正品,假一罰十
 詢價
NS
24+
原廠封裝
4820
全新原裝現(xiàn)貨熱賣,價格絕對優(yōu)
 詢價
NSC
24+
1000
詢價
NS/TI
17+
SOT23-5
6200
100%原裝正品現(xiàn)貨
 詢價
NS
2020+
SOT23
898
百分百原裝正品 真實公司現(xiàn)貨庫存 本公司只做原裝 可
 詢價
更多LM1770供應(yīng)商 更新時間2025-7-29 17:06:00

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