cat6221 Catalyst Semiconductor, cat6221 Datasheet

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cat6221

Manufacturer Part Number
cat6221
Description
300ma Cmos Dual Ldo Regulator
Manufacturer
Catalyst Semiconductor
Datasheet

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300mA CMOS Dual LDO Regulator
FEATURES
APPLICATIONS
For Ordering Information details, see page 10.
PIN CONFIGURATION
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
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
Cellular phones
Battery-powered devices
Consumer Electronics
EN1
EN2
VIN
6-Lead TSOT-23
1
2
3
(0.8mm height)
Top View
CAT4201
6
5
4
VOUT1
GND
VOUT2
1
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.
TYPICAL APPLICATION CIRCUIT
VIN
2.3V to 5.5V
OFF
OFF ON
ON
C
1µF
IN
VIN
EN1
EN2
CAT6221
GND
VOUT1
VOUT2
Doc. No. MD-10001 Rev. A
CAT6221
C
1µF
C
1µF
OUT1
OUT2
VOUT1
VOUT2

Related parts for cat6221

cat6221 Summary of contents

Page 1

... Top View © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 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 ...

Page 2

... V IN EN1 EN2 IN value can be IN Figure 2. CAT6221 Functional Block Diagram On each output, a 250Ω internal shutdown switch discharges the output capacitor in the no-load condition. GND is the ground reference for the LDO. The pin must be connected to the ground plane on the PCB. (1) Rating ...

Page 3

... One LDO Enabled I = 0μA OUT One LDO Enabled I = 300mA OUT V < 0. 1kHz f = 20kHz OUT BW = 10Hz to 100kHz V = 2 2 CAT6221 Min Typ Max Unit -1.0 +1.0 % -2.0 +2.0 40 ppm/ºC ±0.1 -0.2 +0.2 %/V -0.4 +0.4 0.9 1 210 280 mV 350 100 140 170 160 µA ...

Page 4

... CAT6221 TYPICAL CHARACTERISTICS (shown for 2.8V/1.8V outputs version 3.8V 100µA, EN1 = EN2 = V IN OUT Output Voltage 1 vs. Temperature Load Regulation VOUT1 Ground Current (EN2 = GND) Doc. No. MD-10001 Rev 1µ 25°C unless otherwise specified OUT A Output Voltage 2 vs. Temperature ...

Page 5

... Output Voltage 1 vs. Load Current 1 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice , 1µ 25°C unless otherwise specified OUT A Ground Current (EN1 = GND) Ground Current vs. Input Voltage Output Voltage 2 vs. Load Current 2 5 CAT6221 Doc. No. MD-10001 Rev. A ...

Page 6

... CAT6221 TYPICAL CHARACTERISTICS (shown for 2.8V/1.8V outputs option 3.8V 100µA, EN1 = EN2 = V IN OUT Line Regulation VOUT1 PSRR 1 & 2 vs. Frequency (30mA Load) Doc. No. MD-10001 Rev 1µ 25°C unless otherwise specified OUT A Line Regulation VOUT2 6 © Catalyst Semiconductor, Inc. ...

Page 7

... TRANSIENT CHARACTERISTICS (shown for 2.8V/1.8V outputs option 3.8V 100µA, EN1 = EN2 = V IN OUT Note: All transient characteristics are generated using the evaluation board CAT6221EVAL1. Enable Turn-On (100µA Loads) Enable Turn-On (300mA/100μA Loads) Enable Turn-On (100μA/300mA Loads) © Catalyst Semiconductor, Inc. ...

Page 8

... TRANSIENT CHARACTERISTICS (shown for 2.8V/1.8V outputs option 3.8V 100µA, EN1 = EN2 = V IN OUT Note: All transient characteristics are generated using the evaluation board CAT6221EVAL1. VOUT1 Load Transient Response (0.1 to 300mA) Line Transient Response (0.1mA Loads) Line Transient Response (100/0.1mA Loads) Doc. No. MD-10001 Rev 1µ ...

Page 9

... All dimensions are in millimeters, angles in degrees. (2) Complies with JEDEC standard MO-193. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice SYMBOL θ θ CAT6221 MIN NOM MAX 1.00 0.01 0.05 0.10 0.80 0.87 0.90 0.30 0.45 0.12 0.15 0.20 2.90 BSC 2.80 BSC 1.60 BSC 0.95 TYP 0.30 0.40 0.50 0.60 REF 0.25 BSC 0º 8º ...

Page 10

... The standard lead finish is NiPdAu pre-plated (PPF) lead frames. (3) The device used in the above example is a CAT6221-MGTD-GT3 (V and Reel). (4) For other voltage combinations, please contact your nearest Catalyst Semiconductor Sales office. (5) Top marking for CAT6221 is T3YM (Y = Year Month). Doc. No. MD-10001 Rev. A (1)(2)(3)(5) -MG ...

Page 11

... 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 ...

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