CAT6217 150mA CMOS LDO Regulator FEATURES DESCRIPTION Guaranteed 150mA output current The CAT6217 is a 150mA CMOS low dropout regulator that provides fast response time during load current and line voltage changes. Low dropout voltage of 90mV typical at 150mA Stable with 1μF ceramic output capacitor 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. External 10nF bypass capacitor for low noise Quick-start feature With zero shutdown current and low ground current of 55μA typical, the CAT6217 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 2.1V typical. No-load ground current of 55μA typical Full-load ground current of 80μA typical ±1.0% output voltage initial accuracy ±2.0% accuracy over temperature The CAT6217 offers 1% initial accuracy and low dropout voltage, 90mV typical at 150mA. Stable operation is provided with a 1μF ceramic capacitor, reducing required board space and component cost. “Zero” current shutdown mode Current limit and Under voltage lockout Thermal protection Thin SOT23-5 package Other features include output short-circuit current limit and thermal protection. APPLICATIONS The device is available in the low profile (1mm max height) 5-lead thin SOT23 package. Cellular phones Battery-powered devices Consumer Electronics For Ordering Information details, see page 9. PIN CONFIGURATION TYPICAL APPLICATION CIRCUIT TSOT-23 5-Lead (1mm height) VIN 1 VIN 2.3V to 5.5V 5 VOUT GND 2 4 BYP EN 3 OFF ON Top View © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 CIN 1µF VIN VOUT CAT6217 EN BYP GND VOUT COUT 1µF CBYP (Optional) 10nF Doc. No. MD-4011 Rev. A CAT6217 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 BYP Reference VOUT Shutdown Switch GND Figure 2. CAT6217 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. ESR domain is 5mΩ to 500mΩ. VOUT can deliver a maximum guaranteed current of 150mA. 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 1μF ceramic bypass capacitor is required between the VOUT pin and ground for stability. 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. MD-4011 Rev. A 2 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6217 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 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 150 mA VDROP Dropout Voltage (2) IOUT = 150mA IGND Min +1.0 -2.0 +2.0 40 -0.2 Shutdown Ground Current PSRR Power Supply Rejection Ratio ISC TON eN ROUT-SH REN VUVLO ESR ±0.1 -0.4 +0.2 1.0 1.3 90 125 150 55 Unit % ppm/ºC +0.4 0.6 %/V % mV 75 90 IOUT = 150mA IGND-SD Max -1.0 IOUT = 0μA Ground Current Typ μA 80 1 VEN < 0.4V 2 μA f = 1kHz, CBYP = 10nF 64 f = 20kHz, CBYP = 10nF 54 Output short circuit current limit VOUT = 0V 350 mA Turn-On Time CBYP = 10nF 150 μs BW = 10Hz to 100kHz 45 μVrms Shutdown Switch Resistance 250 Ω Enable pull-down resistor Under-voltage lock out (UVLO) threshold COUT equivalent series resistance 2.5 MΩ 2.1 V Output Noise Voltage (3) 5 dB 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. MD-4011 Rev. A CAT6217 TYPICAL CHARACTERISTICS (shown for 2.85V output version) VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified. Line Regulation Dropout Characteristics 2.87 100μA 2.5 OUTPUT VOLTAGE [V] OUTPUT VOLTAGE [V] 3.0 150mA 2.0 1.5 1.0 0.5 0.0 2.85 2.84 2.83 2.82 0.0 1.0 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] 6.0 2.5 5.5 2.87 OUTPUT VOLTAGE [V] 2.95 2.90 2.85 2.80 2.75 2.86 2.85 2.84 2.83 2.82 0 25 50 75 100 125 150 OUTPUT LOAD CURRENT [mA] -40 Ground Current vs. Load Current -10 20 50 80 110 140 TEMPERATURE [°C] Ground Current vs. Temperature 65 GROUND CURRENT [μA] 100 GROUND CURRENT [μA] 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE [V] Output Voltage vs. Temperature Load Regulation OUTPUT VOLTAGE [V] 2.86 90 80 70 60 50 60 55 50 45 0 Doc. No. MD-4011 Rev. A 25 50 75 100 125 150 OUTPUT LOAD CURRENT [mA] -40 4 -10 20 50 80 110 140 TEMPERATURE [°C] © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6217 TYPICAL CHARACTERISTICS (shown for 2.85V output option) VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified. Ground Current vs. Input Voltage 600 70 500 60 GROUND CURRENT [μA] CURRENT LIMIT [mA] . Output Short-Circuit Current Limit 400 300 200 100 VOUT = 0V 1.0 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] 40 30 20 10 0 0 0.0 50 0.0 6.0 Dropout vs. Temperature (150mA Load) 6.0 120 DROPOUT VOLTAGE [mV] DROPOUT VOLTAGE [mV] 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] Dropout vs. Load Current 200 150 100 50 90 60 30 0 0 -40 0 -10 20 50 80 110 140 TEMPERATURE [°C] 30 60 90 120 150 OUTPUT LOAD CURRENT [mA] PSRR vs. Frequency (10mA Load) Enable Threshold vs. Input Voltage 80 1.6 CBY P = 10nF 70 1.2 60 PSRR [dB] ENABLE THRESHOLD [V] 1.0 0.8 0.4 50 40 CBY P = 0 30 20 10 0.0 0 0.01 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE [V] © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 5 0.1 1 10 FREQUENCY [kHz] 100 Doc. No. MD-4011 Rev. A CAT6217 TYPICAL CHARACTERISTICS (shown for 2.85V output option) VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified. PSRR (150mA Load) PSRR (30mA Load) 70 70 1kHz 60 10kHz 10kHz 50 PSRR [dB] 50 PSRR [dB] 1kHz 60 40 30 100kHz 40 100kHz 30 20 20 10 10 0 0 0 Doc. No. MD-4011 Rev. A 100 200 300 400 VIN - VOUT [mV] 0 500 6 100 200 300 400 VIN - VOUT [mV] 500 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6217 TRANSIENT CHARACTERISTICS (shown for 2.85V output option) VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified. Note: All transient characteristics are generated using the evaluation board CAT621XEVAL1. Enable Turn-On (100μA Load) Enable Turn-Off (100μA Load) Enable Turn-On (150mA Load) Enable Turn-Off (150mA Load) Load Transient Response (0.1mA to 150mA) Line Transient Response (3.85V to 4.85V) © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. MD-4011 Rev. A CAT6217 PACKAGE OUTLINES 5-LEAD TSOT-23 (1)(2) 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 L1 0.60 REF L2 0.25 BSC θ 0.50 0º 8º D A2 GAUGE PLANE c A L2 b θ L A1 L1 2HFor current Tape and Reel information, download the PDF file from: Notes: (1) All dimensions are in millimeters, angles in degrees. (2) Refer JEDEC MO-193. Doc. No. MD-4011 Rev. A 8 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT6217 EXAMPLE OF ORDERING INFORMATION (1)(2)(3)(5) Prefix Device # CAT 6217 -285 TD -G Package TD: TSOT-23 Lead Finish G: NiPdAu Product Number 6217 VOUT Voltage (4) 150: 1.50V 180: 1.80V 250: 2.50V 280: 2.80V 285: 2.85V 330: 3.30V Company ID Suffix T3 Tape & Reel T: Tape & Reel 3: 3000 Units/Reel Ordering Number VOUT Voltage Package Quantity per Reel CAT6217-150TD-GT3 CAT6217-180TD-GT3 CAT6217-250TD-GT3 CAT6217-280TD-GT3 CAT6217-285TD-GT3 CAT6217-330TD-GT3 (4) 1.50V 1.80V 2.50V 2.80V 2.85V 3.30V TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 3000 3000 3000 3000 3000 3000 Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard finish is NiPdAu. (3) The device used in the above example is a CAT6217-285TD-GT3 (VOUT = 2.85V, in an TSOT-23 package, NiPdAu, Tape and Reel, 3000 units). (4) Standard voltages are 1.50V, 1.80V, 2.50V, 2.80V, and 2.85V. For other voltage options, please contact your nearest Catalyst Semiconductor Sales office. (5) Top marking for CAT6217 is RT. © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 9 Doc. No. MD-4011 Rev. A REVISION HISTORY Date 06/21/2007 Rev. A Reason Preliminary Revision 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. 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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 1Hwww.catsemi.com Document No: MD-4011 Revision: A Issue date: 06/21/07