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參數(shù)資料
| 型號： | RT9198-4GPBR |
| 廠商： | Richtek Technology Corporation |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 300mA, Low Noise, Ultra-Fast CMOS LDO Regulator |
| 中文描述： | 300mA的，低噪聲，超高速的CMOS LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 261K |
| 代理商： | RT9198-4GPBR |
RT9198/A
1
DS9198/A-10 November 2006
www.richtek.com
300mA, Low Noise, Ultra-Fast CMOS LDO Regulator
General Description
The RT9198/A is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RT9198/A performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. Regulator ground current increases
only slightly in dropout, further prolonging the battery life.
The RT9198/A also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices. The RT9198/A consumes less than 0.01
μ
A in
shutdown mode and has fast turn-on time less than 50
μ
s.
The other features include ultra low dropout voltage, high
output accuracy, current limiting protection, and high ripple
rejection ratio. Available in the SOT-23-3, SOT-23-5,
SC-70-5, SC-82 and WDFN-6L 2x2 packages, the RT9198/
A also offers a range from 1.5V to 5.0V with 0.1V
per
step.
Applications
z
CDMA/GSM Cellular Handsets
z
Battery-Powered Equipment
z
Laptop, Palmtops, Notebook Computers
z
Hand-Held Instruments
z
PCMCIA Cards
z
Portable Information Appliances
Ordering Information
RT9198/A-
Features
z
Low-Noise for RF Application
z
Fast Response in Line/Load Transient
z
Quick Start-Up (Typically 50
μ
s)
z
< 0.01
μ
A Standby Current When Shutdown
z
Low Dropout : 220mV @ 300m
A
z
Wide Operating Voltage Ranges : 2.5V to 5.5V
z
TTL-Logic-Controlled Shutdown Input
z
Low Temperature Coefficient
z
Current Limiting Protection
z
Thermal Shutdown Protection
z
Only 1
μ
F Output Capacitor Required for Stability
z
High Power Supply Rejection Ratio
z
Custom Voltage Available
z
RoHS Compliant and 100% Lead (Pb)-Free
Note :
RichTek Pb-free and Green products are :
`
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
`
Suitable for use in SnPb or Pb-free soldering processes.
`
100% matte tin (Sn) plating.
Marking Information
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
Package Type
U5 : SC-70-5
U5R : SC-70-5 (R-Type)
Y : SC-82
V : SOT-23-3
B : SOT- 23-5
BR : SOT- 23-5 (R-Type)
QW : WDFN-6L 2x2 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
15 : 1.5V
16 : 1.6V
:
49 : 4.9V
50 : 5.0V
1H : 1.85V
2H : 2.85V
4G : 4.75V
Chip Enable Function (Active Low)
Chip Enable Function (Active High)
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