LP2985
Micropower 150mA Low-Noi Ultra Low-Dropout Regulator in SOT-23and micro SMD Packages
Designed for U with Very Low ESR Output Capacitors
General Description
The LP2985is a 150mA,fixed-output voltage regulator designed to provide ultra low-dropout and low noi in bat-tery powered applications.
Using an optimized VIP ™(Vertically Integrated PNP)pro-cess,the LP2985delivers unequalled performance in all specifications critical to battery-powered designs:
Dropout Voltage:Typically 300mV @150mA load,and 7mV @1mA load.
Ground Pin Current:Typically 850µA @150mA load,and 75µA @1mA load.
Enhanced Stability:The LP2985is stable with output ca-pacitor ESR as low as 5m Ω,which allows the u of ceramic capacitors on the output.
Sleep Mode:Less than 1µA quiescent current when ON/OFF pin is pulled low.
Smallest Possible Size:SOT-23and micro SMD packages u absolute minimum board space.
Precision Output:1%tolerance output voltages available (A grade).
Low Noi:By adding a 10nF bypass capacitor,output noi can be reduced to 30µV (typical).
Multiple voltage options,from 2.5V to 5.0V,are available as standard products.Consult factory for custom voltages.
Features
n Ultra low dropout voltage
n Guaranteed 150mA output current
n Smallest possible size (SOT-23,micro SMD package)n Requires minimum external components n Stable with low-ESR output capacitor n <1µA quiescent current when shut down n Low ground pin current at all loads n Output voltage accuracy 1%(A Grade)n High peak current capability
n Wide supply voltage range (16V max)n Low Z OUT :0.3Ωtypical (10Hz to 1MHz)n Overtemperature/overcurrent protection
n −40˚C to +125˚C junction temperature range n
Custom voltages available
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n
Camcorder,Personal Stereo,Camera
Block Diagram
10014001
VIP ™is a trademark of National Semiconductor Corporation.
March 2004
LP2985Micropower 150mA Low-Noi Ultra Low-Dropout Regulator in SOT-23and micro SMD Packages
©2004National Semiconductor Corporation
Basic Application Circuit
10014002
*ON/OFF input must be actively terminated.Tie to V IN if this function is not to be ud.
**Minimum capacitance is shown to ensure stability (may be incread without limit).Ceramic capacitor required for output (e Application Hints).***Reduces output noi (may be omitted if application is not noi critical).U ceramic or film type with very low leakage current (e Application Hints).
Connection Diagrams
5-Lead Small Outline Package (M5)
micro SMD,5Bump Package (BPA05,TPA05&BLA05)
豆奶粉的功效与作用
10014003
Top View
See NS Package Number MF05A For ordering information e Table 1
10014046
Note:The actual physical placement of the package marking will vary from part to part.Package marking contains date code and lot traceability
information,and will vary considerably.Package marking does not correlate to device type.
Top View
See NS Package Number BPA05,TPA05&BLA05
Pin Descrption
Name
王翼弃兵
Pin Number
Function
SOT-23
micro SMD
V IN 1C3Input Voltage
GND 2A1Common Ground (device substrate)ON/OFF 3A3Logic high enable input
BYPASS 4B2Bypass capacitor for low noi operation V OUT
5
C1
Regulated output voltage
L P 2985
2
Ordering Information
TABLE1.Package Marking and Ordering Information
Output Voltage(V)Grade Order Information Package
Marking
Supplied as:
5-Lead Small Outline Package(M5)
For output voltages≤2.3V,refer to LP2985LV datasheet.
2.5A LP2985AIM5X-2.5LAUA3000Units on Tape and Reel
2.5A LP2985AIM5-2.5LAUA1000Units on Tape and Reel
2.5STD LP2985IM5X-2.5LAUB3000Units on Tape and Reel
2.5STD LP2985IM5-2.5LAUB1000Units on Tape and Reel
2.6A LP2985AIM5X-2.6LCEA3000Units on Tape and Reel
2.6A LP2985AIM5-2.6LCEA1000Units on Tape and Reel
2.6STD LP2985IM5X-2.6LCEB3000Units on Tape and Reel
2.6STD LP2985IM5-2.6LCEB1000Units on Tape and Reel
忽然之间歌词2.7A LP2985AIM5X-2.7LALA3000Units on Tape and Reel
2.7A LP2985AIM5-2.7LALA1000Units on Tape and Reel
2.7STD LP2985IM5X-2.7LALB3000Units on Tape and Reel
2.7STD LP2985IM5-2.7LALB1000Units on Tape and Reel
2.8A LP2985AIM5X-2.8L0KA3000Units on Tape and Reel
2.8A LP2985AIM5-2.8L0KA1000Units on Tape and Reel
2.8STD LP2985IM5X-2.8L0KB3000Units on Tape and Reel
2.8STD LP2985IM5-2.8L0KB1000Units on Tape and Reel
2.9A LP2985AIM5X-2.9LAXA3000Units on Tape and Reel
2.9A LP2985AIM5-2.9LAXA1000Units on Tape and Reel
2.9STD LP2985IM5X-2.9LAXB3000Units on Tape and Reel
2.9STD LP2985IM5-2.9LAXB1000Units on Tape and Reel
3.0A LP2985AIM5X-3.0L0OA3000Units on Tape and Reel
3.0A LP2985AIM5-3.0L0OA1000Units on Tape and Reel
免费申请qq阙剑宇3.0STD LP2985IM5X-3.0L0OB3000Units on Tape and Reel
3.0STD LP2985IM5-3.0L0OB1000Units on Tape and Reel
3.1A LP2985AIM5X-3.1L0PA3000Units on Tape and Reel
3.1A LP2985AIM5-3.1L0PA1000Units on Tape and Reel
3.1STD LP2985IM5X-3.1L0PB3000Units on Tape and Reel
3.1STD LP2985IM5-3.1L0PB1000Units on Tape and Reel
3.2A LP2985AIM5X-3.2L0QA3000Units on Tape and Reel
3.2A LP2985AIM5-3.2L0QA1000Units on Tape and Reel
3.2STD LP2985IM5X-3.2L0QB3000Units on Tape and Reel
3.2STD LP2985IM5-3.2L0QB1000Units on Tape and Reel
3.3A LP2985AIM5X-3.3L0RA3000Units on Tape and Reel
3.3A LP2985AIM5-3.3L0RA1000Units on Tape and Reel
3.3STD LP2985IM5X-3.3L0RB3000Units on Tape and Reel
3.3STD LP2985IM5-3.3L0RB1000Units on Tape and Reel
3.5A LP2985AIM5X-3.5LAIA3000Units on Tape and Reel
3.5A LP2985AIM5-3.5LAIA1000Units on Tape and Reel
3.5STD LP2985IM5X-3.5LAIB3000Units on Tape and Reel
3.5STD LP2985IM5-3.5LAIB1000Units on Tape and Reel
3.6A LP2985AIM5X-3.6L0SA3000Units on Tape and Reel
3.6A LP2985AIM5-3.6L0SA1000Units on Tape and Reel
3.6STD LP2985IM5X-3.6L0SB3000Units on Tape and Reel
3.6STD LP2985IM5-3.6L0SB1000Units on Tape and Reel
3.8A LP2985AIM5X-3.8L0YA3000Units on Tape and Reel
LP2985
3
Ordering Information
(Continued)
TABLE 1.Package Marking and Ordering Information (Continued)Output Voltage (V)
Grade Order Information Package Marking Supplied as:
3.8A LP2985AIM5-3.8L0YA 1000Units on Tape and Reel 3.8STD LP2985IM5X-3.8L0YB 3000Units on Tape and Reel 3.8STD LP2985IM5-3.8L0YB 1000Units on Tape and Reel
4.0A LP2985AIM5X-4.0L0TA 3000Units on Tape and Reel 4.0A LP2985AIM5-4.0L0TA 1000Units on Tape and Reel 4.0STD LP2985IM5X-4.0L0TB 3000Units on Tape and Reel 4.0STD LP2985IM5-4.0L0TB 1000Units on Tape and Reel 4.5A LP2985AIM5X-4.5LA7A 3000Units on Tape and Reel 4.5A LP2985AIM5-4.5LA7A 1000Units on Tape and Reel 4.5STD LP2985IM5X-4.5LA7B 3000Units on Tape and Reel 4.5STD LP2985IM5-4.5LA7B 1000Units on Tape and Reel 4.7A LP2985AIM5X-4.7LAJA 3000Units on Tape and Reel 4.7A LP2985AIM5-4.7LAJA 1000Units on Tape and Reel 4.7STD LP2985IM5X-4.7LAJB 3000Units on Tape and Reel 4.7STD LP2985IM5-4.7LAJB 1000Units on Tape and Reel 4.8A LP2985AIM5X-4.8LAKA 3000Units on Tape and Reel 4.8A LP2985AIM5-4.8
LAKA 1000Units on Tape and Reel 4.8STD LP2985IM5X-4.8LAKB 3000Units on Tape and Reel 4.8STD LP2985IM5-4.8LAKB 1000Units on Tape and Reel
5.0A LP2985AIM5X-5.0L0UA 3000Units on Tape and Reel 5.0A LP2985AIM5-5.0L0UA 1000Units on Tape and Reel 5.0STD LP2985IM5X-5.0L0UB 3000Units on Tape and Reel 5.0STD LP2985IM5-5.0L0UB 1000Units on Tape and Reel 5.3A LP2985AIM5X-5.3LFYA 3000Units on Tape and Reel 5.3A LP2985AIM5-5.3LFYA 1000Units on Tape and Reel 5.3STD LP2985IM5X-5.3LFYB 3000Units on Tape and Reel 5.3STD LP2985IM5-5.3LFYB 1000Units on Tape and Reel
6.1A LP2985AIM5X-6.1LF6A 3000Units on Tape and Reel 6.1A LP2985AIM5-6.1LF6A 1000Units on Tape and Reel 6.1STD LP2985IM5X-6.1LF6B 3000Units on Tape and Reel 6.1STD LP2985IM5-6.1LF6B 1000Units on Tape and Reel 12(Note 11)A LP2985AIM5X-12LH1A 3000Units on Tape and Reel 12(Note 11)A LP2985AIM5-12LH1A 1000Units on Tape and Reel 12(Note 11)STD LP2985IM5X-12LH1B 3000Units on Tape and Reel 12(Note 11)STD
LP2985IM5-12
LH1B
1000Units on Tape and Reel
micro SMD,5Bump Package (BPA05-170µm ball)
2.4A LP2985AIBP-2.4250Units on Tape and Reel 2.4A LP2985AIBPX-2.43000Units on Tape and Reel 2.4STD LP2985IBP-2.4250Units on Tape and Reel 2.4STD LP2985IBPX-2.43000Units on Tape and Reel 2.5A LP2985AIBP-2.5250Units on Tape and Reel 2.5A LP2985AIBPX-2.53000Units on Tape and Reel 2.5STD LP2985IBP-2.5250Units on Tape and Reel 2.5
免费学习网STD
LP2985IBPX-2.5
3000Units on Tape and Reel
L P 2985
4
Ordering Information(Continued)
TABLE1.Package Marking and Ordering Information(Continued)
Output Voltage(V)Grade Order Information Package
Marking
Supplied as:
2.6A LP2985AIBP-2.6250Units on Tape and Reel
2.6A LP2985AIBPX-2.63000Units on Tape and Reel
2.6STD LP2985IBP-2.6250Units on Tape and Reel提出用英语怎么说
2.6STD LP2985IBPX-2.63000Units on Tape and Reel
2.8A LP2985AIBP-2.8250Units on Tape and Reel
2.8A LP2985AIBPX-2.83000Units on Tape and Reel
2.8STD LP2985IBP-2.8250Units on Tape and Reel
2.8STD LP2985IBPX-2.83000Units on Tape and Reel
2.9A LP2985AIBP-2.9250Units on Tape and Reel
2.9A LP2985AIBPX-2.93000Units on Tape and Reel
2.9STD LP2985IBP-2.9250Units on Tape and Reel
2.9STD LP2985IBPX-2.93000Units on Tape and Reel
3.0A LP2985AIBP-3.0250Units on Tape and Reel
3.0A LP2985AIBPX-3.03000Units on Tape and Reel
3.0STD LP2985IBP-3.0250Units on Tape and Reel
3.0STD LP2985IBPX-3.03000Units on Tape and Reel
3.3A LP2985AIBP-3.3250Units on Tape and Reel
3.3A LP2985AIBPX-3.33000Units on Tape and Reel
3.3STD LP2985IBPX-3.3250Units on Tape and Reel
3.3STD LP2985IBPX-3.33000Units on Tape and Reel
3.6A LP2985AIBP-3.6250Units on Tape and Reel
3.6A LP2985AIBPX-3.63000Units on Tape and Reel
3.6STD LP2985IBP-3.6250Units on Tape and Reel
3.6STD LP2985IBPX-3.63000Units on Tape and Reel
4.0A LP2985AIBP-4.0250Units on Tape and Reel
4.0A LP2985AIBPX-4.03000Units on Tape and Reel
4.0STD LP2985IBP-4.0250Units on Tape and Reel
4.0STD LP2985IBPX-4.03000Units on Tape and Reel
5.0A LP2985AIBP-5.0250Units on Tape and Reel
5.0A LP2985AIBPX-5.03000Units on Tape and Reel
5.0STD LP2985IBP-5.0250Units on Tape and Reel
5.0STD LP2985IBPX-5.03000Units on Tape and Reel
micro SMD,5Bump Package(TPA05-170µm ball)
2.5A LP2985AITP-2.5250Units on Tape and Reel
南针峰2.5A LP2985AITPX-2.53000Units on Tape and Reel
2.5STD LP2985ITP-2.5250Units on Tape and Reel
2.5STD LP2985ITPX-2.53000Units on Tape and Reel
2.7A LP2985AITP-2.7250Units on Tape and Reel
2.7A LP2985AITPX-2.73000Units on Tape and Reel
2.7STD LP2985ITP-2.7250Units on Tape and Reel
2.7STD LP2985ITPX-2.73000Units on Tape and Reel
2.8A LP2985AITP-2.8250Units on Tape and Reel
2.8A LP2985AITPX-2.83000Units on Tape and Reel
2.8STD LP2985ITP-2.8250Units on Tape and Reel
2.8STD LP2985ITPX-2.83000Units on Tape and Reel
5.0A LP2985AITP-5.0250Units on Tape and Reel
5.0A LP2985AITPX-5.03000Units on Tape and Reel
LP2985
5
