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PDF CAT6221 Data sheet ( Hoja de datos )
| Número de pieza | CAT6221 | |
| Descripción | 300 mA CMOS Dual LDO Regulator | |
| Fabricantes | Catalyst Semiconductor | |
| Logotipo |  |
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300mA CMOS Dual LDO Regulator
www.DataSheet4U.com
CAT6221
FEATURES
Two outputs with guaranteed 300mA peak
output current
Low dropout voltages of 210mV typical at
300mA
Stable with ceramic output capacitors
Independent enable pins
Under voltage lockout
No-load ground current of 100μA typical
Full-load ground current of 160μA typical
±1.0% output voltage initial accuracy
±2.0% accuracy over temperature
“Zero” current shutdown mode
Fold-back current limit and thermal protection
TSOT-23 6-lead, 0.8mm height package
APPLICATIONS
Cellular phones
Battery-powered devices
Consumer Electronics
DESCRIPTION
The 300mA 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 300mA. 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 100μA, the dual LDO is ideal
for battery-operated devices with supply voltage from
2.3V to 5.5V.
The dual LDO offers 1% initial accuracy and very low
dropout voltage, typical 210mV at 300mA. Stable
operation is provided with small 1μF 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 0.8mm.
For Ordering Information details, see page 10.
PIN CONFIGURATION
6-Lead TSOT-23
(0.8mm height)
EN1 1
6 VOUT1
VIN 2 CAT4201 5 GND
EN2 3
4 VOUT2
Top View
TYPICAL APPLICATION CIRCUIT
VIN
2.3V to 5.5V
OFF ON
OFF ON
VIN
CIN
VOUT1
1µF CAT6221
EN1 VOUT2
EN2 GND
VOUT1
COUT1
1µF
VOUT2
COUT2
1µF
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-10001 Rev. A
1 page  
www.DataCShAeetT4U6.c2om21
TYPICAL CHARACTERISTICS (shown for 2.8V/1.8V outputs option)
VIN = 3.8V, IOUT = 100µA, EN1 = EN2 = VIN, CIN = COUT = 1µF, TA = 25°C unless otherwise specified.
Ground Current (EN2 = GND)
Ground Current (EN1 = GND)
Output 1 Dropout Characteristics
Ground Current vs. Input Voltage
Output Voltage 1 vs. Load Current 1
Output Voltage 2 vs. Load Current 2
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-10001 Rev. A
5 Page 
REVISION HISTORY
Date
Rev. Reason
10/10/2007 A Initial Release
www.DataSheet4U.com
Copyrights, Trademarks and Patents
© Catalyst Semiconductor, Inc.
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
Adaptive Analog™, Beyond Memory™, DPP™, EZDim™, LDD™, MiniPot™, Quad-Mode™ and Quantum Charge Programmable™
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products.
CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS
PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE
RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING
OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal
injury or death may occur.
Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled
"Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.
Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical
semiconductor applications and may not be complete.
Catalyst Semiconductor, Inc.
Corporate Headquarters
2975 Stender Way
Santa Clara, CA 95054
Phone: 408.542.1000
Fax: 408.542.1200
www.catsemi.com
Document No: MD-10001
Revision:
A
Issue date: 10/10/07
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet CAT6221.PDF ] | |
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