CAT6219
500 mA CMOS LDO
Regulator
Description
The CAT6219 is a 500 mA CMOS low dropout regulator that
provides fast response time during load current and line voltage
changes.
The quick-start feature allows the use of an external bypass
capacitor to reduce the overall output noise without affecting the
turn-on time of just 150
ms.
With zero shutdown current and low ground current of 55
mA
typical, the CAT6219 is ideal for battery-operated 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 2.15 V typical.
The CAT6219 offers 1% initial accuracy and low dropout voltage,
300 mV typical at 500 mA. Stable operation is provided with a small
value ceramic capacitor, reducing required board space and
component cost.
Other features include current limit and thermal protection.
The LDO is available in fixed and adjustable output in the low
profile (1 mm max height) 5−lead TSOT23 and in the 6−pad 2 mm x
2 mm TDFN packages.
Features
http://onsemi.com
5
1
TSOT−23
TD SUFFIX
CASE 419AE
1
TDFN−6
VP5 SUFFIX
CASE 511AH
PIN CONNECTIONS
1
VIN
GND
EN
EN
GND
VIN
(Top View)
1
TAB
BYP/ADJ
BYP/ADJ
NC
VOUT
VOUT
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Guaranteed 500 mA Peak Output Current
Low Dropout Voltage of 300 mV Typical at 500 mA
Stable with Ceramic Output Capacitor
External 10 nF Bypass Capacitor for Low Noise
Quick−start Feature
Under Voltage Lockout
No−load Ground Current of 55
mA
Typical
Full−load Ground Current of 85
mA
Typical
±1.0%
Initial Accuracy (V
OUT
≥
2.0 V)
±2.0%
Accuracy Over Temperature (V
OUT
≥
2.0 V)
“Zero” Current Shutdown Mode
Fold−back Current Limit
Thermal Protection
5−lead TSOT−23 and 6−pad TDFN Packages
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
MARKING DIAGRAMS
USYM
RVYM
UMYM
US = CAT6219−125, CAT6219−250,
=
CAT6219−300 Device Code
RV = CAT6219−180, CAT6219−280,
=
CAT6219−285, CAT6219−330 Device Code
UM = CAT6219−ADJ Device Code
Y = Production Year (last digit)
M = Production Month: 1
−
9, A, B, C
ABYM
Applications
•
Cellular Phones
•
Battery−powered Devices
•
Consumer Electronics
AB = CAT6219180, CAT6219VP5 Device Code
Y = Production Year (last digit)
M = Production Month: 1
−
9, A, B, C
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
©
Semiconductor Components Industries, LLC, 2010
February, 2010
−
Rev. 9
1
Publication Order Number:
CAT6219/D
ONSEMI [ ON SEMICONDUCTOR ]
