CAT6221_12 Datasheet, PDF (1/10 Pages) ON Semiconductor – 300 mA CMOS Dual LDO Regulator

CAT6221
300 mA CMOS Dual LDO
Regulator
Description
The 300 mA CMOS Dual LDO CAT6221 combines in a single
TSOT−23 6−lead package two low dropout regulators (LDO), each
with its own enable pin.
The regulator outputs drive loads up to 300 mA. By design, the dual
LDO provides fast response time during load current and line voltage
changes.
Each LDO is optimized for low noise and high crosstalk isolation.
With zero shut down current and a low quiescent current of 100 mA,
the dual LDO is ideal for battery−operated devices with supply voltage
from 2.3 V to 5.5 V.
The dual LDO offers 1% initial accuracy and very low dropout
voltage, typical 210 mV at 300 mA. Stable operation is provided with
small 1 mF ceramic output capacitors, reducing required board space
and component cost.
Other features include fold−back current limit and thermal
protection.
The dual LDO is available in the tiny 6−lead TSOT−23 package
with a maximum height of 0.8 mm.
Features
• Two Outputs with Guaranteed 300 mA Peak Output Current
• Low Dropout Voltages of 210 mV Typical at 300 mA
• Stable with Ceramic Output Capacitors
• Independent Enable Pins
• Under Voltage Lockout
• No−load Ground Current of 100 mA Typical
• Full−load Ground Current of 160 mA Typical
• ±1.0% Output Voltage 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 and Thermal Protection
• TSOT−23 6−lead, 0.8 mm Height Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Cellular Phones
• Battery−powered Devices
• Consumer Electronics
http://onsemi.com
6
1
TSOT−23
TD SUFFIX
CASE 419AF
PIN CONNECTIONS
1
EN1
VOUT1
VIN
GND
EN2
VOUT2
(Top View)
MARKING DIAGRAM
T3YM
T3 = CAT6221 Device Code
Y = Production Year (last digit)
M = Production Month: 1 − 9, A, B, C
PIN FUNCTION
Pin # Name
Function
1
EN1 Enable input (active high) for
VOUT1.
2
VIN Supply voltage input.
3
EN2 Enable input (active high) for
VOUT2.
4 VOUT2 LDO Output Voltage 2.
5
GND Ground reference.
6 VOUT1 LDO Output Voltage 1.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
February, 2011 − Rev. 2
Publication Order Number:
CAT6221/D