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TCS2109 Datasheet PDF - TCS

Part Number TCS2109
Description 500mA Low Dropout CMOS Voltage Regulators
Manufacturers TCS 
Logo TCS Logo 

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TCS2109
500mA Low Dropout CMOS Voltage Regulators
DESCRIPTION
The TCS2109 series are highly precise, low noise,
positive voltage LDO regulators manufactured
using CMOS processes. The series achieves
high ripple rejection and low dropout and consists
of a standard voltage source, an error correction,
current limiter and a phase compensation circuit
plus a driver transistor. Output voltage is selectable
in 100mV increments within a range of 2.0V ~ 5.5V.
The series is also compatible with low ESR ceramic
capacitors which give added output stability. This
stability can be maintained even during load fluc-
tuations due to the excellent transient response of
the series.
The current limiter's foldback circuit also operates
as a short protect for the output current limiter and
the output pin The CE function enables the output
to be turned off, resulting in greatly reduced power
consumption.
Pin Configurations
(TOP VIEW)
VIN 1
5 VOUT
GND
2
CE 3
4 NC
SOT-25
FEATURES
Output Voltage Range 2.0V to 5.5V
(selectable in 100mV steps)
Highly Accurate ± 2%
Dropout Voltage 300mV @ 100mA
(3.0V type)
High Ripple Rejection 70dB (10 kHz)
Low Power Consumption 70μA (TYP)
Maximum Output Current 500mA
Standby Current less than 2μA
Internal protector current limiter and
short protector
Small packages SOT-25
APPLICATIONS
Mobile phones
Cordless phones
Cameras, Video cameras
Portable games
Portable AV equipment
Reference voltage
Battery powered equipment
TYPICAL APPLICATION CIRCUIT
Order Informatioon
Pd-Free Package
SOT23-5
Temperature
-40oC to 85 oC
Order Part Number
TCS2109_Exx
Quantity/Reel
3000PCS
Marking
In kind, whichever
Rev.1.0 Aug.10,2005 Page 1

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TCS2109 equivalent
7Transient Response
Input Transient Response
TCS2109
500mA Low Dropout CMOS Voltage Regulators
Load Transient Response
PACKAGE INFORMATION
SOT23-5
Rev.1.0 Aug.10,2005 Page 5


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