LP2985-33 Status: ACTIVE

Single Output LDO, 150mA, Fixed(3.3V), 1.5% Tolerance, Low Quiescent Current, Low Noise

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Datasheet

150-mA Low-Noise, Low-Dropout Regulator With Shutdown (Rev. L) (lp2985-33.pdf, 638 KB)
18 Aug 2008 Download

	LP2985-18	LP2985-25	LP2985-28	LP2985-29	LP2985-33	LP2985-50	LP2985A-18	LP2985A-25	LP2985A-28	LP2985A-29	LP2985A-30	LP2985A-33	LP2985A-50
Iout(Max)(A)	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15
Vdo(Typ)(mV)	280	280	280	280	280	280	280	280	280	280	280	280	280
Iq(Typ)(mA)	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85
Vin(Min)(V)	2.05	2.5	2.5	2.5	2.5	2.5	2.05	2.5	2.5	2.5	2.5	2.5	2.5
Vin(Max)(V)	16	16	16	16	16	16	16	16	16	16	16	16	16
Vout(Min)(V)	1.8	2.5	2.8	2.9	3.3	5.0	1.8	2.5	2.8	2.9	3.0	3.3	5.0
Vout(Max)(V)	1.8	2.5	2.8	2.9	3.3	5.0	1.8	2.5	2.8	2.9	3.0	3.3	5.0
Accuracy(%)	1.5	1.5	1.5	1.5	1.5	1.5	1	1	1	1	1	1	1
Output Capacitor(uF)	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7
Output Capacitor Type	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic
Fixed Output Options(V)	1.8	2.5	2.8	2.9	3.3	5.0	1.8	2.5	2.8	2.9	3.0	3.3	5.0
Pin/Package	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5DSBGA,5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

LP2985-18: Single Output LDO, 150mA, Fixed(1.8V), 1.5% Tolerance, Low Quiescent Current, Low Noise
LP2985-50: Single Output LDO, 150mA, Fixed(5.0V), 1.5% Tolerance, Low Quiescent Current, Low Noise
LP2985A-33: Single Output LDO, 150mA, Fixed(3.3V), 1.0% Tolerance, Low Quiescent Current, Low Noise
TL431: Adjustable Precision Shunt Regulator
TPS62202: 1.8-V Output, 300-mA, 95% Efficient Step-Down Converter in SOT-23
TPS51116: DDR1, DDR2, DDR3 Switcher and LDO

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Product Information

Features

Output Tolerance of
- 1% (A Grade)
- 1.5% (Standard Grade)
Ultra-Low Dropout, Typically
- 280 mV at Full Load of 150 mA
- 7 mV at 1 mA
Wide V_IN Range . . . 16 V Max
Low I_Q . . . 850 µA at Full Load at 150 mA
Shutdown Current . . . 0.01 µA Typ
Low Noise . . . 30 µV_RMS With 10-nF Bypass Capacitor
Stable With Low-ESR Capacitors, Including Ceramic
Overcurrent and Thermal Protection
High Peak-Current Capability
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
PORTABLE APPLICATIONS
- Cellular Phones
- Palmtop and Laptop Computers
- Personal Digital Assistants (PDAs)
- Digital Cameras and Camcorders
- CD Players
- MP3 Players

DESCRIPTION/ORDERING INFORMATION

The LP2985 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for both portable and nonportable applications. Available in voltages of 1.8 V,
2.5 V, 2.8 V, 2.9 V, 3 V, 3.1 V, 3.3 V, 5 V and 10 V, the family has an output tolerance of 1% for the A version (1.5% for the non-A version) and is capable of delivering 150-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included.

The LP2985 has a host of features that makes the regulator an ideal candidate for a variety of portable applications:

Low dropout: A PNP pass element allows a typical dropout of 280 mV at 150-mA load current and 7 mV at 1-mA load.
Low quiescent current: The use of a vertical PNP process allows for quiescent currents that are considerably lower than those associated with traditional lateral PNP regulators.
Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01 µA when the ON/OFF pin is pulled low.
Low-ESR-capacitor friendly: The regulator is stable with low-ESR capacitors, allowing the use of small, inexpensive, ceramic capacitors in cost-sensitive applications.
Low noise: A BYPASS pin allows for low-noise operation, with a typical output noise of
30 µV_RMS, with the use of a 10-nF bypass capacitor.
Small packaging: For the most space-constrained needs, the regulator is available in the SOT-23 package.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
LP2985-33DBVR	ACTIVE	-40 to 125	0.23 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
LP2985-33DBVRE4	ACTIVE	-40 to 125	0.23 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
LP2985-33DBVRG4	ACTIVE	-40 to 125	0.23 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
LP2985-33DBVT	ACTIVE	-40 to 125	0.43 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
LP2985-33DBVTE4	ACTIVE	-40 to 125	0.43 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
LP2985-33DBVTG4	ACTIVE	-40 to 125	0.43 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
LP2985-33DBVR	As of 9:02 AM GMT, 10 Oct 2008			As of 9:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Dec	8 Weeks	Americas	DigiKey	>1k
				Americas	Mouser Electronics	>1k
				Asia	WPI	>1k
				Europe	Avnet-SILICA	>1k
LP2985-33DBVRE4	As of 9:02 AM GMT, 10 Oct 2008			As of 9:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Dec	8 Weeks	None Reported View Distributors
LP2985-33DBVRG4	As of 9:02 AM GMT, 10 Oct 2008			As of 9:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Dec	8 Weeks	None Reported View Distributors
LP2985-33DBVT	As of 9:02 AM GMT, 10 Oct 2008			As of 9:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 9 Dec	9 Weeks	Americas	Avnet	750
					Mouser Electronics	229
					Newark	924
					Rochester Electronics	750
				Europe	EBV Elektronik	>1k
LP2985-33DBVTE4	As of 9:02 AM GMT, 10 Oct 2008			As of 9:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 9 Dec	9 Weeks	Americas	Mouser Electronics	994
				Europe	Arrow Northern Europe	>1k
					Avnet-SILICA	240
					Farnell	>1k
LP2985-33DBVTG4	As of 9:02 AM GMT, 10 Oct 2008			As of 9:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 9 Dec	9 Weeks	None Reported View Distributors
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
LP2985-33DBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LP2985-33DBVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LP2985-33DBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LP2985-33DBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LP2985-33DBVTE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LP2985-33DBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

150-mA Low-Noise, Low-Dropout Regulator With Shutdown (Rev. L) (lp2985-33.pdf, 638 KB)
18 Aug 2008 Download

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