Semicon Original Integrated Circuits n123l1 BOM jerin sabis a Stock TPS7A5201QRGRRQ1

taƙaitaccen bayanin:

LDOs an rarraba su azaman ingantaccen ƙarfin fitarwa LDOs ko LDOs mara kyau.Ingantattun ƙarfin wutar lantarki na LDOs (ƙananan dropout): yi amfani da transistor wuta (wanda ake kira na'urar canja wuri) azaman PNP.wannan transistor yana ba da damar jikewa don haka mai sarrafa zai iya samun ƙarancin ƙarancin ƙarfin lantarki, yawanci kusan 200mV;LDOs mara kyau suna amfani da NPN azaman na'urar canja wuri kuma suna aiki a cikin yanayi iri ɗaya zuwa ingantaccen fitarwa LDOs.LDO mara kyau yana amfani da NPN azaman na'urar canja wuri kuma yana aiki a cikin yanayin kama da na'urar PNP na ingantaccen fitarwa LDO.

Aika mana imel Zazzage Kwanan wata

Cikakken Bayani

Tags samfurin

Halayen Samfur

TYPE	BAYANI
Kashi	Haɗin kai (ICs) PMIC Matsakaicin Wutar Lantarki - Layi
Mfr	Texas Instruments
Jerin	Mota, AEC-Q100
Kunshin	Tape & Reel (TR) Yanke Tape (CT) Digi-Reel®
SPQ	3000 T&R
Matsayin samfur	Mai aiki
Kanfigareshan fitarwa	M
Nau'in fitarwa	daidaitacce
Adadin Masu Gudanarwa	1
Wutar lantarki - Input (Max)	6.5V
Voltage - Fitarwa (min / Kafaffen)	0.8V
Wutar lantarki - Fitarwa (Max)	5.2V
Fitar da wutar lantarki (Max)	0.3V @ 2A
Yanzu - Fitowa	2A
PSRR	42dB ~ 25dB (10kHz ~ 500kHz)
Siffofin sarrafawa	Kunna
Siffofin Kariya	Sama da Zazzabi, Juya Polarity
Yanayin Aiki	-40°C ~ 150°C (TJ)
Nau'in hawa	Dutsen Surface
Kunshin / Case	20-VFQFN Fitar da Kushin
Kunshin Na'urar Mai bayarwa	20-VQFN (3.5x3.5)
Lambar Samfurin Tushen	Saukewa: TPS7A5201

Rabewa

Tukwici mai tsawo: Fitar wutar lantarki shine mafi ƙarancin bambanci tsakanin ƙarfin shigarwa da ƙarfin fitarwa da ake buƙata don mai sarrafawa don kula da ƙarfin fitarwa tsakanin 100mV sama ko ƙasa da ƙimar sa.

Zabar mafita

Boost koyaushe zaɓi ne mai kyau ga DCDC, kuɗi, ko zaɓi DCDC ko LDO, don kwatantawa dangane da farashi, inganci, hayaniya, da aiki.

❶ Lokacin da ƙarfin shigarwa da fitarwa suna kusa, yana da kyau a zaɓi mai sarrafa LDO, wanda zai iya samun inganci sosai.

Misali: Ana yawan amfani da masu sarrafa LDO a aikace-aikace inda aka canza ƙarfin baturi na lithium-ion zuwa ƙarfin fitarwa na 3V.Kodayake ba a amfani da kashi 10 na ƙarshe na ƙarfin baturin, mai sarrafa LDO har yanzu yana tabbatar da tsawon lokacin aiki na baturi tare da ƙaramar ƙara.

❷Lokacin da ƙarfin shigarwa da ƙarfin fitarwa ba su da kusanci sosai, yi la'akari da nau'in sauyawa na DCDC ma saboda shigar da halin yanzu na LDO daidai yake da na yanzu.Idan juzu'in wutar lantarki ya yi girma, ƙarfin da ake cinyewa a cikin LDO ya yi girma da yawa kuma ingancin ba shi da yawa.

Halayen masu kula da layi na gargajiya

Matsakaicin layi na al'ada: gabaɗaya suna buƙatar shigar da wutar lantarki Uin ya zama aƙalla 2V ~ 3V sama da ƙarfin fitarwa Game da (kamar 78XX jerin kwakwalwan kwamfuta), in ba haka ba ba za su yi aiki da kyau ba.Amma irin wannan yanayin yana da tsauri sosai.Idan 5V zuwa 3.3V, bambancin ƙarfin lantarki tsakanin shigarwa da fitarwa shine 1.7V kawai, wanda bai dace da yanayin aiki na mai daidaita layin layi na al'ada ba.Juyin wutar lantarkin sa don mai sarrafa layi na al'ada ta amfani da transistor fili na NPN yana kusa da 2V.

Tare da transistors na MOS yana yiwuwa a samar da mafi ƙarancin wutar lantarki.Tare da MOS mai wutar lantarki, ƙarancin wutar lantarki ta hanyar mai sarrafawa yana haifar da juriya na ON na halin yanzu na na'urar samar da wutar lantarki.Idan nauyin yana ƙarami, raguwar ƙarfin lantarki da aka samar ta wannan hanya shine kawai 'yan dubun millivolts.

Na baya: Asourcing zafi sayar da ikon canza TPS4H160AQPWPRQ1 ic guntu guda tabo

Na gaba: Sabis Tsaya Daya SON8 TPS7A8101QDRBRQ1 Tare da Asali Kuma Sabbin Chips na Lantarki na IC

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