CAT6219 Datasheet, PDF (1/9 Pages) Catalyst Semiconductor – 500mA CMOS LDO Regulator

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
• 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
Applications
• Cellular Phones
• Battery−powered Devices
• Consumer Electronics
http://onsemi.com
5
1
TSOT−23
TD SUFFIX
CASE 419AE
1
TDFN−6
VP5 SUFFIX
CASE 511AH
PIN CONNECTIONS
1
VIN
VOUT
GND
EN
BYP/ADJ
EN
GND
VIN
1
TAB
BYP/ADJ
NC
VOUT
(Top View)
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
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
1
February, 2010 − Rev. 9
Publication Order Number:
CAT6219/D