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CAT6218_11 Datasheet, PDF (1/9 Pages) ON Semiconductor – 300 mA CMOS LDO Regulator | |||
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CAT6218
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 quickâstart feature allows the use of an external bypass
capacitor to reduce the overall output noise without affecting the
turnâon time of just 150 ms.
With zero shutdown current and low ground current of 55 mA
typical, the CAT6218 is ideal for batteryâoperated 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 foldâback current limit and thermal
protection.
The device is available in the low profile (1 mm max height) 5âlead
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
⢠Quickâstart Feature
⢠Noâload Ground Current of 55 mA Typical
⢠Fullâload Ground Current of 80 mA Typical
⢠±1.0% Initial Accuracy (VOUT ⥠2.0 V)
⢠±2.0% Accuracy Over Temperature (VOUT ⥠2.0 V)
⢠âZeroâ Current Shutdown Mode
⢠Foldâback Current Limit and Underâvoltage Lockout
⢠Thermal Protection
⢠Thin SOT23â5 Package
⢠These Devices are PbâFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
⢠Cellular Phones
⢠Batteryâpowered Devices
⢠Consumer Electronics
http://onsemi.com
5
1
TSOTâ23
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 â 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
pullâdown 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, 2011
1
January, 2011 â Rev. 5
Publication Order Number:
CAT6218/D
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