CAT6221-JLTD-G

CAT6221 300mA CMOS Dual LDO Regulator 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 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. APPLICATIONS Cellular phones Battery-powered devices Consumer Electronics For Ordering Information details, see page 10. PIN CONFIGURATION 6-Lead TSOT-23 (0.8mm height) TYPICAL APPLICATION CIRCUIT VIN EN1 VIN EN2 1 2 3 CAT4201 6 5 4 VOUT1 GND VIN CIN 1µF VOUT1 COUT1 1µF VOUT1 2.3V to 5.5V CAT6221 EN1 VOUT2 EN2 GND OFF ON VOUT2 OFF ON VOUT2 COUT2 1µF Top View © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 Doc. No. MD-10001 Rev. A CAT6221 PIN DESCRIPTIONS 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. BLOCK DIAGRAM VIN VIN EN1 LDO1 EN1 Reference Shutdown Switch VOUT1 VOUT1 PIN FUNCTION VIN is the supply pin for the LDO. A small 1μF ceramic bypass capacitor is required between the VIN pin and ground near the device. When using longer connections to the power supply, CIN value can be increased without limit. The operating input voltage range is from 2.3V to 5.5V. EN1 & 2 are the enable control logic (active high) for the regulator outputs. VOUT1 & 2 are the LDO regulator outputs. A small 1μF ceramic bypass capacitor is required between the VOUT pins and ground. For better transient response, its value can be increased to 4.7μF. The capacitor should be located near the device. For the TSOT23 6-lead package, a continuous 300mA output current for both LDOs may turn-on the thermal protection. VOUT2 EN2 LDO2 EN2 Shutdown Switch VOUT2 GND 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. ABSOLUTE MAXIMUM RATINGS (1) Parameter VIN VEN, VOUT Junction Temperature, TJ Power Dissipation, PD Storage Temperature Range, TS Lead Temperature (soldering, 5 sec.) ESD Rating (Human Body Model) Rating 0 to 6.5 -0.3 to VIN+0.3 +150 Internally Limited (2) -65 to +150 260 3 Unit V V °C mW °C °C kV RECOMMENDED OPERATING CONDITIONS (3) Parameter Range VIN 2.3 to 5.5 VEN 0 to VIN Junction Temperature Range, TJ -40 to +125 235 Package Thermal Resistance (TSOT23), θJA Typical application circuit with external components are shown on page 1. Unit V V °C °C/W Notes: (1) Exceeding maximum rating may damage the device. (2) The maximum allowable power dissipation at any TA (ambient temperature) is PDmax = (TJmax – TA) / θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. (3) The device is not guaranteed to work outside its operating rating. Doc. No. MD-10001 Rev. A 2 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6221 ELECTRICAL OPERATING CHARACTERISTICS (1) VIN = VOUT + 1.0V, VEN = High, IOUT = 100µA, CIN = COUT = 1µF, ambient temperature of 25ºC (over recommended operating conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range. Symbol Parameter VOUT-ACC TCOUT VR-LINE VR-LOAD VDROP Output Voltage Accuracy Output Voltage Temp. Coefficient Line Regulation Load Regulation Dropout Voltage (2) VIN = VOUT + 1.0V to 5.5V IOUT = 100μA to 300 mA IOUT = 300mA Both LDOs Enabled IOUT = 0μA Both LDOs Enabled IOUT = 300mA One LDO Enabled IOUT = 0μA One LDO Enabled IOUT = 300mA IGND-SD PSRR ISC TON eN ROUT-SH VIN-UVLO ESR VHI VLO IEN Shutdown Ground Current Power Supply Rejection Ratio Output short circuit current limit Turn-On Time Output Noise Voltage (3) Conditions Initial accuracy Min -1.0 -2.0 -0.2 -0.4 Typ Max +1.0 +2.0 Unit % ppm/ºC 40 ±0.1 0.9 210 100 +0.2 +0.4 1.5 2 280 350 140 170 %/V % mV 160 55 75 90 85 2 4 60 45 130 150 95 250 2.15 5 500 µA dB mA µs µVrms Ω V mΩ V V µA µA IGND Ground Current VEN < 0.4V f = 1kHz f = 20kHz VOUT = 0V BW = 10Hz to 100kHz Shutdown Switch Resistance Under voltage lockout threshold COUT equivalent series resistance Logic High Level Logic Low Level Enable Input Current VIN = 2.3 to 5.5V VIN = 2.3 to 5.5V VEN = 0.4V VEN = VIN Enable Input (EN1, EN2) 1.8 0.4 0.05 0.1 160 10 1 1 Thermal Protection TSD THYS . Thermal Shutdown Thermal Hysteresis ºC ºC Notes: (1) Specification for 2.8V output version unless specified otherwise. (2) Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. During test, the input voltage stays always above the minimum 2.3V. (3) Specification for 1.8V output version. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 3 Doc. No. MD-10001 Rev. A CAT6221 TYPICAL CHARACTERISTICS (shown for 2.8V/1.8V outputs version) VIN = 3.8V, IOUT = 100µA, EN1 = EN2 = VIN, CIN = COUT = 1µF, TA = 25°C unless otherwise specified. Output Voltage 1 vs. Temperature Output Voltage 2 vs. Temperature Load Regulation VOUT1 Load Regulation VOUT2 Ground Current (EN2 = GND) Ground Current (EN1 = GND) Doc. No. MD-10001 Rev. A 4 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6221 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 CAT6221 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. Line Regulation VOUT1 Line Regulation VOUT2 PSRR 1 & 2 vs. Frequency (30mA Load) Doc. No. MD-10001 Rev. A 6 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6221 TRANSIENT 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. Note: All transient characteristics are generated using the evaluation board CAT6221EVAL1. Enable Turn-On (100µA Loads) Enable Turn-Off (100µA Loads) Enable Turn-On (300mA/100μA Loads) Enable Turn-Off (300mA/100µA Loads) Enable Turn-On (100μA/300mA Loads) Enable Turn-Off (100μA/300mA Loads) © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. MD-10001 Rev. A CAT6221 TRANSIENT 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. Note: All transient characteristics are generated using the evaluation board CAT6221EVAL1. VOUT1 Load Transient Response (0.1 to 300mA) VOUT2 Load Transient Response (0.1 to 300mA) Line Transient Response (0.1mA Loads) Line Transient Response (0.1/100mA Loads) Line Transient Response (100/0.1mA Loads) Separate Enable Operation (100mA Loads) Doc. No. MD-10001 Rev. A 8 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6221 PACKAGE OUTLINE DRAWING TSOT-23 6-Lead 0.8mm (TD) (1)(2) SYMBOL MIN NOM MAX D e A A1 A2 b c D E1 E 1.00 0.01 0.80 0.30 0.12 0.15 2.90 BSC 2.80 BSC 1.60 BSC 0.95 TYP 0.30 0.40 0.60 REF 0.25 BSC 0º 8º 0.50 0.05 0.87 0.10 0.90 0.45 0.20 E E1 e L L1 L2 θ TOP VIEW A2 A θ b A1 L1 L c L2 SIDE VIEW END VIEW For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters, angles in degrees. (2) Complies with JEDEC standard MO-193. © Catalyst Semiconductor, Inc. 9 Doc. No. MD-10001 Rev. A Characteristics subject to change without notice CAT6221 EXAMPLE OF ORDERING INFORMATION (1) (2) (3) (5) Prefix CAT Device # 6221 Suffix -MG TD -G T3 Company ID Product Number 6221 VOUT Voltage (4) See table below for Voltage Combinations Package TD: TSOT-23 Lead Finish G: NiPdAu Tape & Reel T: Tape & Reel 3: 3000 Units/Reel Part Number CAT6221-JFTD-G CAT6221-JGTD-G CAT6221-JLTD-G CAT6221-JPTD-G CAT6221-MFTD-G CAT6221-MGTD-G CAT6221-MLTD-G CAT6221-MPTD-G CAT6221-PFTD-G CAT6221-PGTD-G CAT6221-PLTD-G CAT6221-PPTD-G CAT6221-SFTD-G CAT6221-SGTD-G CAT6221-SLTD-G CAT6221-SPTD-G VOUT Voltage Combination(4) 2.5V / 1.5V 2.5V / 1.8V 2.5V / 2.7V 2.5V / 3.0V 2.8V / 1.5V 2.8V / 1.8V 2.8V / 2.7V 2.8V / 3.0V 3.0V / 1.5V 3.0V / 1.8V 3.0V / 2.7V 3.0V / 3.0V 3.3V / 1.5V 3.3V / 1.8V 3.3V / 2.7V 3.3V / 3.0V Package TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 Quantity per Reel 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu pre-plated (PPF) lead frames. (3) The device used in the above example is a CAT6221-MGTD-GT3 (VOUT1 = 2.8V, VOUT2 = 1.8V, in a TSOT-23 package, NiPdAu, Tape and Reel). (4) For other voltage combinations, please contact your nearest Catalyst Semiconductor Sales office. (5) Top marking for CAT6221 is T3YM (Y = Year, M = Month). Doc. No. MD-10001 Rev. A 10 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice REVISION HISTORY Date 10/10/2007 Rev. A Reason Initial Release 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