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PDF LP3983H Data sheet ( Hoja de datos )
| Número de pieza | LP3983H | |
| Descripción | Small Package Ultra-Fast CMOS LDO Regulator | |
| Fabricantes | Lowpowersemi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LP3983H (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Preliminary Datasheet
LP3983H
600mA,Ultra-low noise, Small Package
Ultra-Fast CMOS LDO Regulator
General Description
The LP3983H is designed for portable RF and wireless
applications with demanding performance and space
requirements. The LP3983H 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
LP3983H also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for
power applications, critical in hand-held wireless
devices. The LP3983H 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. It is available
in the 5-lead of SOT23-5 packages.
Ordering Information
LP3983H □
□□ □ □□
FB voltage
09: 0.9V
08: 0.8V
F: Pb-Free
Package Type
B5: SOT23-5
B6: SOT23-6
Output Voltage Type
A: Adjustable
Features
Ultra-Low-Noise for RF Application
2V- 6V Input Voltage Range
Low Dropout : 300mV @ 400mA
600mA Output Current, 750mA Peak Current
High PSRR: -68dB at 1KHz
< 0.01uA Standby Current When Shutdown
Available in SOT23-5/6 Package
TTL-Logic-Controlled Shutdown Input
Ultra-Fast Response in Line/Load transient
Current Limiting and Thermal Shutdown
Protection
Quick start-up (typically 20uS)
Typical Application Circuit
Vin
2.2uF
1 LP3983HAB5F
5
VIN OUT
22pF
Chip Enable
3
EN
GND
2
4
ADJ
Vout
2.2uF
R1
R2
Applications
Portable Media Players/MP3 players
Cellular and Smart mobile phone
LCD
DSC Sensor
Wireless Card
1 page  
Preliminary Datasheet
Typical Operating Characteristics
LP3983H
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LP3983H.PDF ] | |
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