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ON Semiconductor - 300 mA CMOS LDO Regulator

Numéro de référence CAT6218
Description 300 mA CMOS LDO Regulator
Fabricant ON Semiconductor 
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CAT6218 fiche technique
CAT6218
www.DataSheet4U.com
300 mA CMOS LDO
Regulator
Description
The CAT6218 is a 300 mA CMOS low dropout regulator that
provides fast response time during load current and line voltage
changes.
The quickstart feature allows the use of an external bypass
capacitor to reduce the overall output noise without affecting the
turnon time of just 150 ms.
With zero shutdown current and low ground current of 55 mA
typical, the CAT6218 is ideal for batteryoperated devices with supply
voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit
disables the output at supply voltages under 2.1 V typical.
The CAT6218 offers 1% initial accuracy and low dropout voltage,
180 mV typical at 300 mA. Stable operation is provided with a small
value ceramic capacitor, reducing required board space and
component cost.
Other features include foldback current limit and thermal
protection.
The device is available in the low profile (1 mm max height) 5lead
thin SOT23 package.
Features
Guaranteed 300 mA Output Current
Low Dropout Voltage of 180 mV Typical at 300 mA
Stable with 1 mF Ceramic Output Capacitor
External 10 nF Bypass Capacitor for Low Noise
Quickstart Feature
Noload Ground Current of 55 mA Typical
Fullload Ground Current of 80 mA Typical
±1.0% Initial Accuracy (VOUT 2.0 V)
±2.0% Accuracy Over Temperature (VOUT 2.0 V)
“Zero” Current Shutdown Mode
Foldback Current Limit and Undervoltage Lockout
Thermal Protection
Thin SOT235 Package
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Cellular Phones
Batterypowered Devices
Consumer Electronics
http://onsemi.com
5
1
TSOT23
TD SUFFIX
CASE 419AE
PIN CONNECTIONS
1
VIN
VOUT
GND
EN BYP
(Top View)
MARKING DIAGRAM
RUYM
RU= CAT6218 Device Code
Y = Production Year (last digit)
M = Production Month: 1 9, A, B, C
PIN FUNCTION
Pin # Name
Function
1 VIN Supply voltage input.
2 GND Ground reference.
3 EN Enable input (active high); a 2.5 MW
pulldown resistor is provided.
4 BYP Optional bypass capacitor connec-
tion for noise reduction and PSRR
enhancing.
5 VOUT LDO Output Voltage.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
December, 2009 Rev. 4
1
Publication Order Number:
CAT6218/D

PagesPages 9
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