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LP3985IBL-2.5-LP3985IBL-2.6-LP3985IBL-2.8-LP3985IBL-2.9-LP3985IBL-285 Fast Delivery,Good Price
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Partno	Mfg	Dc	Qty	Available	Descript
LP3985IBP-285 |LP3985IBP285		N/a	2046	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-2.5 |LP3985IBL25	NSC	N/a	30	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-2.6 |LP3985IBL26	NATIONAL	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-2.8 |LP3985IBL28	NS	N/a	584	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-2.9 |LP3985IBL29	NS	N/a	115	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-285 |LP3985IBL285	NS	N/a	180	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-3.0 |LP3985IBL30	NS	N/a	250	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-3.1 |LP3985IBL31	NS	N/a	280	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.5 |LP3985IBLX25	NSC	N/a	502	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.6 |LP3985IBLX26	NS	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.7 |LP3985IBLX27	NATIONAL	N/a	18690	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.8 |LP3985IBLX28	NS	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-285 |LP3985IBLX285	NS	N/a	715	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-3.0 |LP3985IBLX30	NS	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-3.1 |LP3985IBLX31	NS	N/a	15000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-3.2 |LP3985IBLX32	NS/NS	N/a	18000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-3.3 |LP3985IBLX33	NSC ?	N/a	45000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-3.3 |LP3985IBLX33	NSC	N/a	820	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-4.8 |LP3985IBLX48	NS	N/a	100000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-2.5 |LP3985IBP25	NS	N/a	290	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-2.6 |LP3985IBP26	NS	N/a	683	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-2.8 |LP3985IBP28	NSC	N/a	5	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-3.0 |LP3985IBP30	NS	N/a	14930	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-3.0 |LP3985IBP30	NSC	N/a	11560	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-3.1 |LP3985IBP31	NSC	N/a	20	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBP-3.3 |LP3985IBP33	NS	N/a	750	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-2.5 |LP3985IBPX25	NSC	N/a	12000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-2.8 |LP3985IBPX28	NS	N/a	93000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-2.8 |LP3985IBPX28	NATIONAL	N/a	93000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-2.9 |LP3985IBPX29	NS	N/a	909	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-3.0 |LP3985IBPX30	NSC	N/a	2500	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-3.0 |LP3985IBPX30	NS	N/a	14930	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-3.1 |LP3985IBPX31	NS	N/a	72000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBPX-3.2 |LP3985IBPX32	NS	N/a	3820	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-2.6 |LP3985IM526	NSC	N/a	400	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-2.6 |LP3985IM526	NS	N/a	350	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-2.7 |LP3985IM527	NSC	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-2.8 |LP3985IM528	NSC	N/a	61000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-2.85 |LP3985IM5285	NSC	N/a	1000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-2.9 |LP3985IM529	NSC	N/a	865	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-285 |LP3985IM5285	NSC ?	N/a	1000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-3.0 |LP3985IM530	NATIONAI	N/a	40	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-3.1 |LP3985IM531	NS	N/a	16880	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-3.2 |LP3985IM532	NS	N/a	8268	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-3.2 |LP3985IM532	NSC	N/a	40	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-3.3 |LP3985IM533	NS,NS	N/a	130	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-4.7 |LP3985IM547	NS	N/a	9000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5-5.0 |LP3985IM550	NSC	N/a	350	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-2.5 |LP3985IM5X25	NS	N/a	12000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-2.6 |LP3985IM5X26	NS	N/a	13087	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-2.7 |LP3985IM5X27	NS	N/a	15000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-2.8 |LP3985IM5X28	NATIONAL	N/a	45000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-2.85 |LP3985IM5X285	NS/BD	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-2.9 |LP3985IM5X29	NSC	N/a	469	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-285 |LP3985IM5X285	NATIONAL	N/a	490	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-3.0 |LP3985IM5X30	NS	N/a	36500	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-3.1 |LP3985IM5X31	NS	N/a	48000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-3.2 |LP3985IM5X32	NS	N/a	33000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-3.3 |LP3985IM5X33	NS	N/a	60000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-4.7 |LP3985IM5X47	NSC	N/a	31580	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-4.7 |LP3985IM5X47	NS	N/a	92	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IM5X-5.0 |LP3985IM5X50	NS	N/a	10728	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-2.5 |LP3985ITL25	NS	N/a	1250	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-2.6 |LP3985ITL26	NSC ?	N/a	168	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-2.6 |LP3985ITL26	NSC	N/a	750	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-2.7 |LP3985ITL27	NS	N/a	9985	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-285 |LP3985ITL285	NS	N/a	200	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-3.0 |LP3985ITL30	NS	N/a	5292	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITL-3.1 |LP3985ITL31	NS	N/a	5388	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-2.5 |LP3985ITLX25	NS	N/a	30000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-2.7 |LP3985ITLX27	NS	N/a	11862	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-2.8 |LP3985ITLX28	NATIONAL	N/a	37500	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-2.85 |LP3985ITLX285	NS	N/a	708	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-2.9 |LP3985ITLX29	NATIONAL	N/a	207600	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-3.0 |LP3985ITLX30	NSC	N/a	1250	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985ITLX-3.3 |LP3985ITLX33	NATIONAL	N/a	3000	avai	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

LP3985ITLX-2.9 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorLP3985 Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorJune 2004LP3985Micropowe ..
LP3985ITLX-2.9/NOPB ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator 5-DSBGA -40 to 125Electrical Characteristics....... 511.1 Documentation Support ... 216.6 Typical Performance Charact ..
LP3985ITLX-285/NOPB ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator 5-DSBGA -40 to 125Features 3 DescriptionThe LP3985 is designed for portable and wireless1• Input Voltage: 2.5 V to 6 ..
LP3985ITLX-3.0 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorGeneral Description4.8V and 5.0V output voltages. For other output voltageThe LP3985 is designed fo ..
LP3985ITLX-3.3 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorApplications1.5µA in disable mode and has fast turn-on time less than200µs.n CDMA cellular handsets ..
LP3986BL-2626 ,Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD PackageApplicationsLP3985 datasheet.n CDMA cellular handsetsn GSM cellular handsetsn Portable information ..
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LP3985IBL-2.5-LP3985IBL-2.6-LP3985IBL-2.8-LP3985IBL-2.9-LP3985IBL-285-LP3985IBL-3.0-LP3985IBL-3.1-LP3985IBLX-2.5-LP3985IBLX-2.6-LP3985IBLX-2.7-LP3985IBLX-2.8-LP3985IBLX-285-LP3985IBLX-3.0-LP3985IBLX-3.1-LP3985IBLX-3.2-LP3985IBLX-3.3-LP3985IBLX-4.8-LP3985IBP-2.5-LP3985
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS
Voltage Regulator
General Description
The LP3985is designedfor portable and wireless applica-
tions with demanding performance and space requirements.
The LP3985is stable witha small 1µF ±30% ceramicor
high-quality tantalum output capacitor. The micro SMDre-
quiresthe smallest possiblePC board area-the total appli-
cation circuit area canbe less than 2.0mmx 2.5mm,a
fractionofa 1206 case size.
The LP3985’s performanceis optimizedfor battery powered
systemsto deliver ultra low noise, extremely low dropout
voltage and low quiescent current. Regulator ground current
increases only slightlyin dropout, further prolonging the
battery life. optional external bypass capacitor reduces the output
noise without slowing down the load transient response.
Fast start-up timeis achieved by utilizing an internal
power-on circuit that actively pre-chargesthe bypass capaci-
tor.
Power supply rejectionis better than50dBat low frequen-
cies and startstorolloffat 1kHz. High power supply rejection maintained downto low input voltage levels commonto
battery operated circuits.
The deviceis idealfor mobile phone and similar battery
powered wireless applications.It providesupto 150 mA,
froma 2.5Vto6V input. The LP3985 consumes less than
1.5µAin disable mode and has fast turn-on time less than
200µs.
The LP3985is availableina5 bump small bump micro SMD,5 bump large bump micro SMD,a5 bump thin micro SMD
anda5pin SOT-23 package. Performanceis specifiedfor
−40˚Cto +125˚C temperature range andis availablein 2.5V,
2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V. 3.1V, 3.2V, 3.3V, 4.7V,
4.8V and 5.0V output voltages. For other output voltage
options between 2.5Vto 5.0Vorfora dual LP3985, please
contact National Semiconductor sales office.
Key Specifications 2.5to 6.0V input range 150mA guaranteed output 50dB PSRRat 1kHz@ VIN =VOUT+ 0.2V ≤1.5µA quiescent current when shut down Fast Turn-On time: 200µs (typ.) 100mV maximum dropout with 150mA load 30µVrms output noise (typ) over 10Hzto 100kHz −40to +125˚C junction temperature rangefor operation 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.2V,
3.3V, 4.7V, 4.8V and 5.0V outputs standard
Features Miniature 5-I/O micro SMD and SOT-23-5 package Logic controlled enable Stable with ceramic and high quality tantalum capacitors Fast turn-on Thermal shutdown and short-circuit current limit
Applications CDMA cellular handsets Wideband CDMA cellular handsets GSM cellular handsets Portable information appliances
Typical Application Circuit
Note:Pin Numbersin parenthesis indicate micro SMD package. Optional Noise Reduction Capacitor.
June 2004
LP3985
Micropower
150mA
Low-Noise
Ultra
Low-Dropout
CMOS
oltage
Regulator

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