Semicon Original Integrated circuits n123l1 BOM daim ntawv teev cov kev pabcuam Hauv Tshuag TPS7A5201QRGRRQ1

luv luv piav qhia:

LDOs raug cais raws li qhov zoo tso zis voltage LDOs lossis cov zis tsis zoo LDOs.zoo tso zis voltage LDOs (tsawg dropout) regulators: siv lub hwj chim transistor (tseem hu ua ib tug hloov khoom siv) raws li lub PNP.no transistor tso cai saturation yog li tus regulator yuav muaj ib tug tsis tshua muaj dropout voltage, feem ntau nyob ib ncig ntawm 200mV;Cov zis tsis zoo LDOs siv NPN ua nws cov khoom hloov pauv thiab ua haujlwm hauv hom zoo sib xws rau cov txiaj ntsig zoo LDOs.Qhov tso zis tsis zoo LDO siv NPN raws li nws cov khoom hloov pauv thiab ua haujlwm hauv hom zoo sib xws rau PNP ntaus ntawv ntawm qhov zoo tso tawm LDO.

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Product Detail

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Yam khoom

HOM	Kev piav qhia
Qeb	Integrated Circuits (ICs) PMIC Voltage Regulators - Tawm
Mfr	Texas Instruments
Series	Automotive, AEC-Q100
Pob	Daim kab xev & Reel (TR) Daim kab xev (CT) Digi-Reel®
SPQ	3000 T&R
Yam khoom	Active
Output Configuration	Qhov zoo
Hom tso zis	Kho tau
Tus naj npawb ntawm Regulators	1
Voltage - Input (Max)	6.5v ua
Voltage - Tso zis (Min/Fixed)	0,8v ua
Voltage - Tso zis (Max)	5.2v ua
Voltage poob siab (Max)	0.3V @ 2A
Tam sim no - Tso zis	2A
PSRR	42dB ~ 25dB (10kHz ~ 500kHz)
Tswj Nta	Pab
Kev tiv thaiv nta	Tshaj kub, rov qab polarity
Ua haujlwm kub	-40 ° C ~ 150 ° C (TJ)
Mounting Hom	Nto Mount
Pob / Case	20-VFQFN nthuav tawm Pad
Cov Khoom Muag Khoom Pob	20-VQFN (3.5x3.5)
Base Product Number	TPS7A5201

Kev faib tawm

Cov Lus Qhia Ntxiv: Kev poob qis yog qhov sib txawv yam tsawg kawg nkaus ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob uas xav tau rau tus tswj hwm kom tswj tau cov zis hluav taws xob tsis pub dhau 100mV saum toj no lossis qis dua nws tus nqi nominal.

Xaiv qhov kev daws teeb meem

Boost yog ib qho kev xaiv zoo rau DCDC, phaw, seb puas yuav xaiv DCDC lossis LDO, los sib piv ntawm cov nqi, kev ua haujlwm, suab nrov, thiab kev ua haujlwm.

❶ Thaum cov tswv yim thiab cov zis voltages nyob ze, nws yog qhov zoo tshaj los xaiv LDO regulator, uas tuaj yeem ua tau zoo heev.

Piv txwv li: LDO regulators feem ntau siv nyob rau hauv daim ntawv thov qhov twg lithium-ion roj teeb voltage hloov mus rau 3V tso zis voltage.Txawm hais tias qhov kawg 10% ntawm lub roj teeb lub zog tsis siv, LDO regulator tseem ua kom lub roj teeb ntev ua haujlwm nrog lub suab qis.

❷Thaum lub input voltage thiab cov zis voltage tsis nyob ze, xav txog ib tug switching hom DCDC ib yam nkaus thiab vim hais tias cov input tam sim no ntawm LDO yog sib npaug zos rau cov zis tam sim no.Yog tias qhov hluav taws xob poob siab dhau lawm, lub zog siv hauv LDO loj dhau thiab qhov ua tau zoo tsis siab.

Cov yam ntxwv ntawm cov tsoos linear regulators

Cov kab hluav taws xob sib xyaw ua ke: feem ntau yuav tsum muaj qhov nkag voltage Uin tsawg kawg yog 2V ~ 3V siab tshaj qhov tso zis voltage Txog (xws li 78XX series ntawm chips), txwv tsis pub lawv yuav tsis ua haujlwm zoo.Tab sis tej yam mob hnyav heev.Yog tias 5V txog 3.3V, qhov sib txawv ntawm qhov kev tawm tswv yim thiab cov zis tsuas yog 1.7V, uas tsis ua raws li cov kev ua haujlwm ntawm cov khoom siv sib xyaw ua ke.Nws qhov hluav taws xob poob rau ib qho kev sib txuas ncaj qha siv NPN compound fais fab transistor yog nyob ib ncig ntawm 2V.

Nrog MOS fais fab transistors nws muaj peev xwm muab qhov qis tshaj tawm hluav taws xob.Nrog lub zog MOS, tsuas yog qhov hluav taws xob poob los ntawm kev tswj hwm yog tshwm sim los ntawm ON tsis kam ntawm cov khoom siv hluav taws xob tam sim no.Yog hais tias lub load me me, qhov voltage poob generated nyob rau hauv no txoj kev tsuas yog ob peb kaum millivolts.

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