CAT6219 500mA CMOS LDO Regulator FEATURES DESCRIPTION Guaranteed 500mA peak output current Low dropout voltage of 300mV typical at 500mA Stable with ceramic output capacitor External 10nF bypass capacitor for low noise Quick-start feature Under voltage lockout No-load ground current of 55μA typical Full-load ground current of 85μA typical ±1.0% output voltage initial accuracy ±2.0% accuracy over temperature “Zero” current shutdown mode Current limit and thermal protection 5-lead thin SOT-23 and 6-lead TDFN packages The CAT6219 is a 500mA 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 150μs. With zero shutdown current and low ground current of 55μA typical, the CAT6219 is ideal for batteryoperated devices with supply voltages from 2.3V to 5.5V. An internal under voltage lockout circuit disables the output at supply voltages under 2.15V typical. The CAT6219 offers 1% initial accuracy and low dropout voltage, 300mV typical at 500mA. Stable operation is provided with a small value ceramic capacitor, reducing required board space and component cost. APPLICATIONS Other features include current limit and thermal protection. Cellular phones Battery-powered devices Consumer Electronics The device is available in the low profile (1mm max height) 5-lead thin SOT23 and in the 6-lead 2mm x 2mm TDFN packages. For Ordering Information details, see page 9. PIN CONFIGURATION TYPICAL APPLICATION CIRCUIT 5-Lead Thin SOT-23 6-Lead TDFN (1mm height) (2mm x 2mm) VIN 1 GND 2 5 VOUT CAT6219 4 BYP EN 3 Top View © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice EN 6 1 VIN 2.3V to 5.5V OFF ON BYP CIN 1µF VIN VOUT CAT6219 EN BYP GND GND 2 5 NC VIN 3 4 VOUT VOUT COUT 2.2µF CBYP (Optional) 10nF Top View 1 Doc. No. 10009 Rev. A CAT6219 PIN DESCRIPTIONS BLOCK DIAGRAM Pin # Name Function 1 VIN Supply voltage input. 2 GND Ground reference. Enable input (active high); a 2.5MΩ 3 EN pull-down resistor is provided. Optional bypass capacitor connection 4 BYP for noise reduction and PSRR enhancing. 5 VOUT LDO Output Voltage. VIN VIN VOUT LDO EN VOUT EN BYP Reference Shutdown Switch GND Figure 2. CAT6219 Functional Block Diagram 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. The capacitor should be located near the device. For the SOT23-5 package, a continuous 500mA output current may turn-on the thermal protection. 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. EN is the enable control logic (active high) for the regulator output. It has a 2.5MΩ pull-down resistor, which assures that if EN pin is left open, the circuit is disabled. BYP is the reference bypass pin. An optional 0.01μF capacitor can be connected between BYP pin and GND to reduce the output noise and enhance the PSRR at high frequency. VOUT is the LDO regulator output. A small 2.2μF ceramic bypass capacitor is required between the VOUT pin and ground. For better transient response, its value can be increased to 4.7μF. 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 VIN VEN Junction Temperature Range, TJ Package Thermal Resistance (SOT23-5), θJA Range 2.3 to 5.5 0 to VIN -40 to +125 235 Unit V V °C °C/W Typical application circuit with external components is shown on page 1. 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. 10009 Rev. A 2 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6219 ELECTRICAL OPERATING CHARACTERISTICS (1) VIN = VOUT + 1.0V, VEN = High, IOUT = 100μA, CIN = 1µF, COUT = 2.2µF, ambient temperature of 25ºC (over recommended operating conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range. Symbol Parameter Conditions VOUT-ACC Initial accuracy Output Voltage Accuracy TCOUT Output Voltage Temp. Coefficient VR-LINE Line Regulation VIN = VOUT + 1.0V to 5.5V VR-LOAD Load Regulation IOUT = 100μA to 500 mA VDROP Dropout Voltage (2) IOUT = 500mA IGND Min Max -1.0 +1.0 -2.0 +2.0 40 -0.2 Shutdown Ground Current PSRR Power Supply Rejection Ratio ISC Output short circuit current limit VOUT = 0V TON Turn-On Time +0.2 1.5 2 300 400 500 55 Unit % ppm/ºC +0.4 1 %/V % mV 75 μA 90 IOUT = 500mA IGND-SD ±0.1 -0.4 IOUT = 0μA Ground Current Typ 85 1 VEN < 0.4V μA 2 f = 1kHz, CBYP = 10nF 64 f = 20kHz, CBYP = 10nF 54 dB 800 mA CBYP = 10nF 150 μs BW = 10Hz to 100kHz 45 μVrms Shutdown Switch Resistance 250 Ω Enable pull-down resistor 2.5 MΩ VIN-UVLO Under voltage lockout threshold 2.15 V ESR COUT equivalent series resistance eN ROUT-SH REN Output Noise Voltage (3) 600 5 500 mΩ Enable Input VHI Logic High Level VIN = 2.3 to 5.5V VLO Logic Low Level VIN = 2.3 to 5.5V IEN Enable Input Current V 1.8 0.4 VEN = 0.4V 0.15 1 VEN = VIN 1.5 4 V μA Thermal Protection TSD Thermal Shutdown 160 ºC THYS Thermal Hysteresis 10 ºC Notes: (1) Specification for 2.85V 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. © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 3 Doc. No. 10009 Rev. A CAT6219 TYPICAL CHARACTERISTICS (shown for 2.85V output version) VIN = 3.85V, IOUT = 100μA, CIN = 1µF, COUT = 2.2μF, CBYP = 10nF, TA = 25°C unless otherwise specified. Dropout Characteristics Line Regulation 2.87 0.1mA 2.5 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 3.0 500mA 2.0 1.5 1.0 0.5 2.86 2.85 2.84 2.83 0.0 2.82 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3 3.5 INPUT VOLTAGE (V) Load Regulation 5 5.5 2.87 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 4.5 Output Voltage vs. Temperature 2.95 2.90 2.85 2.80 2.75 2.86 2.85 2.84 2.83 2.82 0 50 100 150 200 250 300 350 400 450 500 -40 -20 0 OUTPUT LOAD CURRENT (mA) 20 40 60 80 100 120 140 TEMPERATURE (ºC) Ground Current vs. Temperature Ground Current vs. Load Current 100 65 GROUND CURRENT (µA) GROUND CURRENT (µA) 4 INPUT VOLTAGE (V) 90 80 70 60 61 57 53 49 45 50 0 -40 50 100 150 200 250 300 350 400 450 500 0 20 40 60 80 100 120 140 TEMPERATURE (ºC) OUTPUT LOAD CURRENT (mA) Doc. No. 10009 Rev. A -20 4 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6219 TYPICAL CHARACTERISTICS (shown for 2.85V output option) VIN = 3.85V, IOUT = 100μA, CIN = 1µF, COUT = 2.2μF, CBYP = 10nF, TA = 25°C unless otherwise specified. Ground Current vs. Input Voltage Output Short-circuit Current vs. Input Voltage 70 1000 GROUND CURRENT (µA) CURRENT LIMIT (mA) 900 800 700 600 500 400 300 200 100 60 50 40 30 20 10 VOUT = 0 0 0 1 2 3 4 0 5 1 1.5 2 2.5 3 3.5 4 4.5 INPUT VOLTAGE (V) Dropout vs. Temperature (500mA Load) Dropout vs. Load Current 5 5.5 400 500 450 400 350 300 250 350 300 250 200 150 100 200 -40 -20 0 20 40 60 50 0 80 100 120 140 0 50 100 150 200 250 300 350 400 450 500 TEMPERATURE (°C) OUTPUT LOAD CURRENT (mA) Enable Threshold vs. Input Voltage PSRR vs. Frequency (10mA Load) 1.6 80 CBYP = 10nF 70 60 1.2 PSRR [dB] ENABLE THRESHOLD (V) 0.5 INPUT VOLTAGE (V) DROPOUT VOLTAGE (mV) 500mA DROPOUT VOLTAGE (mV) 0 0.8 50 CBYP = 0 40 30 20 0.4 10 0 1.0E+01 0 2 2.5 3 3.5 4 4.5 5 5.5 Characteristics subject to change without notice 1.0E+03 1.0E+04 1.0E+05 FREQUENCY [Hz] INPUT VOLTAGE (V) © 2007 Catalyst Semiconductor, Inc. 1.0E+02 5 Doc. No. 10009 Rev. A CAT6219 TRANSIENT CHARACTERISTICS (shown for 2.85V output option) VIN = 3.85V, IOUT = 100μA, CIN = 1µF, COUT = 2.2μF, CBYP = 10nF, TA = 25°C unless otherwise specified. Enable Turn-On (100μA Load) Enable Turn-Off (100μA Load) Enable Turn-On (500mA Load) Enable Turn-Off (500mA Load) Load Transient Response (0.1mA to 500mA) Line Transient Response (3.85V to 4.85V) Doc. No. 10009 Rev. A 6 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6219 PACKAGE OUTLINES 5-LEAD TSOT-23 e e E E1 e1 SYMBOL MIN NOM MAX A — — 1.00 A1 0.01 0.05 0.10 A2 0.80 0.87 0.90 b 0.30 — 0.45 c 0.12 0.15 0.20 D 2.90 BSC E 2.80 BSC E1 1.60 BSC e 0.95 BSC e1 1.90 BSC L 0.30 0.40 0.50 L1 0.60 REF L2 0.25 BSC θ 0º 8º D A2 GAUGE PLANE c A L2 L A1 b θ L1 For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) (2) All dimensions are in millimeters, angles in degrees. REFER JEDEC MO-193. © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. 10009 Rev. A CAT6219 PACKAGE OUTLINES 6-LEAD TDFN (2mm x 2mm) SYMBOL MIN NOM MAX A 0.70 0.75 0.80 A1 0.00 0.02 0.05 A3 0.20 REF b 0.25 0.30 0.35 D 1.90 2.00 2.10 D2 1.50 1.60 1.70 E 1.90 2.00 2.10 E2 0.90 1.00 1.10 e L 0.65 TYP 0.16 0.25 0.35 For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) (2) All dimensions are in millimeters, angles in degrees. REFER JEDEC MO-229. Doc. No. 10009 Rev. A 8 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6219 EXAMPLE OF ORDERING INFORMATION Prefix Device # Suffix CAT 6219 -285 TD -G Package TD: TSOT-23 (6) VP5 : TDFN-6 Lead Finish G: NiPdAu Product Number 6219 VOUT Voltage (4) 180: 1.80V 285: 2.85V 330: 3.30V Company ID Ordering Number CAT6219-180TD-GT3 CAT6219-285TD-GT3 CAT6219-330TD-GT3 T3 Tape & Reel T: Tape & Reel 3: 3000 Units/Reel (TSOT-23) 4: 4000 Units/Reel (TDFN) VOUT Voltage(5) Package Quantity per Reel 1.80V 2.85V 3.30V TSOT-23 TSOT-23 TSOT-23 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 CAT6219-285TD-GT3 (VOUT = 2.85V, in a TSOT-23 package, NiPdAu, Tape and Reel, 3000 units). (4) (5) Standard voltages are 1.80V, 2.85V and 3.30V. For other voltage options, please contact your nearest Catalyst Semiconductor Sales office. All output voltage options have the same marking. (6) Contact factory for availability. (7) Package Marking for CAT6219 family is “RV.” © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 9 Doc. No. 10009 Rev. A CAT6219 REVISION HISTORY Date 04/20/2007 Rev. A Reason Initial Release Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Beyond Memory™, DPP™, EZDim™, LDD™, MiniPot™ and Quad-Mode™ 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 Doc. No. 10009 Rev. A Document No: 10009 Revision: A Issue date: 04/20/07 10 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice