RT9187C Datasheet, PDF (1/8 Pages) Richtek Technology Corporation – 600mA, Ultra-Low Dropout, CMOS Regulator

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RT9187C
600mA, Ultra-Low Dropout, CMOS Regulator
General Description
The RT9187C is a high-performance, 600mA LDO regulator,
offering extremely high PSRR and ultra-low dropout. This
chip is ideal for portable RF and wireless applications
with demanding performance and space requirements.
A noise reduction pin is also available for further reduction
of output noise. Regulator ground current increases only
slightly in dropout, further prolonging the battery life. The
RT9187C also works well with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices.
The RT9187C consumes less than 0.1μA in shutdown
mode. The other features include ultra-low dropout voltage,
high output accuracy, current limiting protection, and high
ripple rejection ratio. The RT9187C is available in the SOT-
23-5 package.
Ordering Information
RT9187C
Package Type
B : SOT-23-5
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek 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.
Marking Information
40=DNN
40= : Product Code
DNN : Date Code
Features
Ultra-Low-Noise for RF Application
Ultra-Fast Response in Line/Load Transient
<0.1μA Standby Current When Shutdown
Low Dropout : 100mV at 500mA
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Current Limiting Protection
Thermal Shutdown Protection
Only 2.2μF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
RoHS Compliant and Halogen Free
Applications
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Mini PCI & PCI-Express Cards
PCMCIA & New Cards
Portable Information Appliances
Pin Configurations
(TOP VIEW)
VOUT
ADJ
5
4
2
3
VIN GND EN
SOT-23-5
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9187C-00 June 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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