LP3987 datasheet(1/8 Pages) POWER

部件名	LP3987

功能描述	300mA,Ultra-LowNoise Ultra-fast CMOS LDO Regrlator

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制造商	POWER [Lowpower Semiconductor inc]

网页	http://www.lowpowersemi.com

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LP3987

LP3987-datasheet

Oct.-2003

1-1

300mA,Ultra-LowNoise

Ultra-fast CMOS LDO Regrlator

General Description

The LP3987 is designed for portable RF and

wireless applications with demanding performance

and space requirements. The LP3987 performance

is optimized for battery-powered systems to deliver

ultra low noise and low quiescent current. A noise

bypass pin is available for further reduction of

output noise. Regulator ground current increases

only slightly in dropout, further prolonging the

battery life. The LP3987 also works with low-ESR

ceramic capacitors, reducing the amount of board

space necessary for power applications, critical in

hand-held wireless devices. The LP3987 consumes

less than 0.01µA in shutdown mode and has fast

turn-on time less than 50µs. The other features

include ultra low dropout voltage, high output

accuracy, current limiting protection, and high

ripple rejection ratio. Available in the 5-lead of

SOT-23 packages.

Pin Configurations

SOT-23-5

SOT-23

Typical Application Circuit

Features

Ultra-Low-Noise for RF Application

2.5V- 6V Input Voltage Range

Low Dropout : 220mV @ 300mA

High PSSR:-80dB at 1KHz

< 0.01 A Standby Current When

Shutdown

TTL-Logic-Controlled Shutdown Input

Custom Voltage Available

Ultra-Fast Response in Line/Load

Transient

Quick Start-Up (Typically 50 s)

Current Limiting and Thermal Shutdown

Protection

Applications

PMP/PDA/MP3 players

Cellular and Mobile phone

RF Module

Sensor Module

Ordering Information

LP3987 -

□□

□

□□

F:PB-Free

Package Type

B5: SOT-23-5

B3: SOT-23

Output Voltage:

SOT23-5(B5) Type:

Type

A

B

C

D

E

H

F

G

Voltage(V) 1.5

1.8

2.5 2.7 2.8

2.85

3.0

3.3

SOT23 (B3) Type:

Type

A

B

C

D

E

H

F

G

Voltage(V) 1.5

1.8

2.0 2.1 2.5

2.8

3.0

3.3

Note:

1.

Output Voltage range from 1.5V to 3.3V;

2.

2.85V output order is LP3987-HB5F.

类似零件编号 - LP3987

制造商	部件名	数据表	功能描述
National Semiconductor ...	LP3987	533Kb / 17P	Micropower micro SMD 150 mA Ultra Low-Dropout CMOS Voltage Regulators with sleep MODE
Texas Instruments	LP3987	1Mb / 21P	Micropower DSBGA 150-mA Ultra Low Dropout CMOS Voltage Regulator With Sleep MODE
Texas Instruments	LP3987	1Mb / 21P	Micropower DSBGA 150-mA Ultra Low-Dropout CMOS Voltage Regulator
Lowpower Semiconductor ...	LP3987H	428Kb / 9P	Ultra-Low-Noise for RF Application
Texas Instruments	LP3987ITL-2.5	1Mb / 21P	Micropower DSBGA 150-mA Ultra Low Dropout CMOS Voltage Regulator With Sleep MODE

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类似说明 - LP3987

制造商	部件名	数据表	功能描述
Richtek Technology Corp...	RT9193	208Kb / 12P	300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator
Power IC Ltd.	PL0301	406Kb / 12P	300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator
Richtek Technology Corp...	RT9193	191Kb / 14P	300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator
Lowpower Semiconductor ...	LP3983	250Kb / 8P	For BaseBand,300mA,Ultra-LowNoise Ultra-fast CMOS LDO Regrlator
Richtek Technology Corp...	RT9187A	213Kb / 11P	300mA, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator
Leshan Radio Company	LR9193	802Kb / 9P	300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator
Leshan Radio Company	LR9198	734Kb / 12P	300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator
SHANGHAI BELLING CO., L...	BL9193	911Kb / 14P	300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator
SHANGHAI BELLING CO., L...	BL9198	1Mb / 14P	300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator
ACE Technology Co., LTD...	ACE5055LA	202Kb / 3P	300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator VER 1.1