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| CAT6218 300 mA CMOS LDO Regulator Description The CAT6218 is a 300 mA 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 150 ms. With zero shutdown current and low ground current of 55 mA typical, the CAT6218 is ideal for battery-operated devices with supply voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit disables the output at supply voltages under 2.1 V typical. The CAT6218 offers 1% initial accuracy and low dropout voltage, 180 mV typical at 300 mA. Stable operation is provided with a small value ceramic capacitor, reducing required board space and component cost. Other features include fold-back current limit and thermal protection. The device is available in the low profile (1 mm max height) 5-lead thin SOT23 package. Features http://onsemi.com 5 1 TSOT-23 TD SUFFIX CASE 419AE PIN CONNECTIONS 1 VIN GND EN (Top View) BYP VOUT * * * * * * * * * * * * * * Guaranteed 300 mA Output Current Low Dropout Voltage of 180 mV Typical at 300 mA Stable with 1 mF Ceramic Output Capacitor External 10 nF Bypass Capacitor for Low Noise Quick-start Feature No-load Ground Current of 55 mA Typical Full-load Ground Current of 80 mA Typical 1.0% Initial Accuracy (VOUT 2.0 V) 2.0% Accuracy Over Temperature (VOUT 2.0 V) "Zero" Current Shutdown Mode Fold-back Current Limit and Under-voltage Lockout Thermal Protection Thin SOT23-5 Package These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant MARKING DIAGRAM RUYM RU= CAT6218 Device Code Y = Production Year (last digit) M = Production Month: 1 - 9, A, B, C PIN FUNCTION Pin # 1 2 3 4 Name VIN GND EN BYP Function Supply voltage input. Ground reference. Enable input (active high); a 2.5 MW pull-down resistor is provided. Optional bypass capacitor connection for noise reduction and PSRR enhancing. Applications * Cellular Phones * Battery-powered Devices * Consumer Electronics 5 VOUT LDO Output Voltage. ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. (c) Semiconductor Components Industries, LLC, 2009 December, 2009 - Rev. 4 1 Publication Order Number: CAT6218/D CAT6218 VIN VIN 2.3 V to 5.5 V CIN 1 F VIN VOUT VOUT COUT 1 F VIN EN LDO VOUT VOUT CAT6218 EN BYP GND OFF ON BYP CBYP (Optional) 10 nF Reference Shutdown Switch GND Figure 1. Typical Application Circuit Figure 2. CAT6218 Functional Block Diagram Pin Function VIN is the supply pin for the LDO. A small 1 mF 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 2.3 V to 5.5 V. EN is the enable control logic (active high) for the regulator output. It has a 2.5 MW pull-down resistor, which assures that if EN pin is left open, the circuit is disabled. VOUT is the LDO regulator output. A small 1 mF ceramic bypass capacitor is required between the VOUT pin and ground for stability. For better transient response, its value can be increased to 4.7 mF. Table 1. ABSOLUTE MAXIMUM RATINGS Parameter VIN VEN, VOUT Junction Temperature, TJ Power Dissipation, PD Storage Temperature Range, TS Lead Temperature (soldering, 5 sec.) ESD Rating (Human Body Model) The capacitor should be located near the device. ESR domain is 5 mW to 500 mW. VOUT can deliver a maximum guaranteed current of 300 mA. For input-to-output voltages higher than 1 V, a continuous 300 mA output current might turn-on the thermal protection. A 250 W 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. BYP is the reference bypass pin. An optional 0.01 mF capacitor can be connected between BYP pin and GND to reduce the output noise and enhance the PSRR at high frequency. Rating 0 to 6.5 -0.3 to VIN + 0.3 +150 Internally Limited (Note 1) -65 to +150 260 3 Unit V V _C mW _C _C kV Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Table 2. RECOMMENDED OPERATING CONDITIONS (Note 2) Parameter VIN VEN Junction Temperature Range, TJ Package Thermal Resistance (SOT23-5), JA Range 2.3 to 5.5 0 to VIN -40 to +125 235 Unit V V _C _C/W NOTE: Typical application circuit with external components is shown above. 1. The maximum allowable power dissipation at any TA (ambient temperature) is PDmax = (TJmax - TA)/qJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 2. The device is not guaranteed to work outside its operating rating. http://onsemi.com 2 CAT6218 Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3) (VIN = VOUT + 1.0 V, VEN = High, IOUT = 100 mA, CIN = COUT = 1 mF, ambient temperature of 25C (over recommended operating conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.) Symbol VOUT-ACC TCOUT VR-LINE VR-LOAD VDROP IGND Parameter Output Voltage Accuracy Conditions Initial accuracy for VOUT 2.0 V (Note 6) Min -1.0 -2.0 40 VIN = VOUT + 1.0 V to 5.5 V IOUT = 100 mA to 300 mA IOUT = 300 mA IOUT = 0 mA IOUT = 300 mA IGND-SD PSRR Shutdown Ground Current VEN < 0.4 V f = 1 kHz, CBYP = 10 nF f = 20 kHz, CBYP = 10 nF ISC TON eN ROUT-SH REN VUVLO ESR Output short circuit current limit Turn-On Time Output Noise Voltage (Note 5) Shutdown Switch Resistance Enable pull-down resistor Under-voltage lock out (UVLO) threshold COUT equivalent series resistance Logic High Level VIN = 2.3 to 5.5 V VIN = 2.3 to 5.5 V, 0C to +125C junction temperature VLO IEN Logic Low Level Enable Input Current VIN = 2.3 to 5.5 V VEN = 0.4 V VEN = VIN THERMAL PROTECTION TSD THYS Thermal Shutdown Thermal Hysteresis 160 10 C C 0.15 1.5 5 VOUT = 0 V CBYP = 10 nF BW = 10 Hz to 100 kHz 64 54 180 150 45 250 2.5 2.1 500 mA ms mVrms W MW V mW -0.2 -0.4 Load Regulation 0.7 0.1 +0.2 +0.4 1.2 1.5 Dropout Voltage (Note 4) 180 250 300 Ground Current 55 75 90 80 1 2 Power Supply Rejection Ratio dB mA mA mV % Typ Max +1.0 +2.0 ppm/C %/V Unit % Output Voltage Temp. Coefficient Line Regulation ENABLE INPUT VHI 1.8 1.6 0.4 1 4 V mA V 3. Specification for 2.80 V output version unless specified otherwise. 4. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1 V differential. During test, the input voltage stays always above the minimum 2.3 V. 5. Specification for 1.8 V output version. 6. For VOUT < 2.0 V, the initial accuracy is 2% and across temperature 3%. http://onsemi.com 3 CAT6218 TYPICAL CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.) 3.0 100mA 2.5 OUTPUT VOLTAGE [V] 2.0 300mA 1.5 1.0 0.5 0.0 0.0 1.0 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] 6.0 OUTPUT VOLTAGE [V] 2.86 2.85 2.84 2.83 2.82 2.5 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE [V] 5.5 2.87 Figure 3. Dropout Characteristics 2.95 2.87 2.86 OUTPUT VOLTAGE [V] 2.85 2.84 2.83 2.82 0 50 100 150 200 250 300 OUTPUT LOAD CURRENT [mA] -40 Figure 4. Line Regulation OUTPUT VOLTAGE [V] 2.90 2.85 2.80 2.75 -10 20 50 80 110 TEMPERATURE [C] 140 Figure 5. Load Regulation 100 90 80 70 60 50 0 25 50 75 100 125 150 OUTPUT LOAD CURRENT [mA] Figure 6. Output Voltage vs. Temperature 65 GROUND CURRENT [mA] GROUND CURRENT [mA] 60 55 50 45 -40 -10 20 50 80 110 TEMPERATURE [C] 140 Figure 7. Ground Current vs. Load Current Figure 8. Ground Current vs. Temperature http://onsemi.com 4 CAT6218 TYPICAL CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.) 3.0 2.5 GROUND CURRENT [mA] OUTPUT VOLTAGE [V] 2.0 1.5 1.0 0.5 0.0 0 100 200 300 400 500 600 700 OUTPUT LOAD CURRENT [mA] 70 60 50 40 30 20 10 0 0.0 1.0 2.0 3.0 4.0 INPUT VOLTAGE [V] 5.0 6.0 Figure 9. Output Voltage vs. Load Current 350 300 250 200 150 100 -40 -10 20 50 80 110 TEMPERATURE [C] 140 Figure 10. Ground Current vs. Input Voltage 300 250 DROPOUT VOLTAGE [mV] 200 150 100 50 0 0 50 100 150 200 250 OUTPUT LOAD CURRENT [mA] 300 DROPOUT VOLTAGE [mV] Figure 11. Dropout vs. Temperature (300 mA Load) 1.6 80 70 ENABLE THRESHOLD [V] 1.2 PSRR [dB] 60 50 40 30 20 10 0.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE [V] 5.5 0 Figure 12. Dropout vs. Load Current CBYP = 10 nF 0.8 CBYP = 0 0.4 0.01 0.1 1 10 FREQUENCY [kHz] 100 Figure 13. Enable Threshold vs. Input Voltage Figure 14. PSRR vs. Frequency (10 mA Load) http://onsemi.com 5 CAT6218 TYPICAL CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.) 70 60 50 PSRR [dB] PSRR [dB] 40 30 20 10 0 0 100 200 300 400 VIN - VOUT [mV] 500 100kHz 70 1kHz 10kHz 60 50 40 30 20 10 0 0 100 200 300 400 VIN - VOUT [mV] 500 100kHz 10kHz 1kHz Figure 15. PSRR (30 mA Load) Figure 16. PSRR (200 mA Load) http://onsemi.com 6 CAT6218 TRANSIENT CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.) Figure 17. Enable Turn-on (100 mA Load) Figure 18. Enable Turn-off (100 mA Load) Figure 19. Enable Turn-on (300 mA Load) Figure 20. Enable Turn-off (300 mA Load) Figure 21. Line Transient Response (3.85 V to 4.85 V) Figure 22. Load Transient Response (0.1 mA to 300 mA) Note: All transient characteristics are generated using the evaluation board CAT621XEVAL1. http://onsemi.com 7 CAT6218 PACKAGE DIMENSIONS TSOT-23, 5 LEAD CASE 419AE-01 ISSUE O SYMBOL A A1 A2 b c D E1 E E E1 e L L1 L2 0.30 0.01 0.80 0.30 0.12 0.15 2.90 BSC 2.80 BSC 1.60 BSC 0.95 TYP 0.40 0.60 REF 0.25 BSC 0.50 0.05 0.87 D e MIN NOM MAX 1.00 0.10 0.90 0.45 0.20 TOP VIEW 0 8 A2 A q b A1 L1 L c L2 SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-193. END VIEW http://onsemi.com 8 CAT6218 Example of Ordering Information (Note 9) Prefix CAT Device # 6218 Suffix -180 TD G T3 Company ID (Optional) Product Number 6218 VOUT Voltage (Note 10) 150: 1.50 V 180: 1.80 V 240: 2.40 V 250: 2.50 V 270: 2.70 V 280: 2.80 V 285: 2.85 V 300: 3.00 V 320: 3.20 V 330: 3.30 V Package TD: TSOT-23 Lead Finish G: NiPdAu Tape & Reel (Note 11) T: Tape & Reel 3: 3,000 / Reel ORDERING INFORMATION Orderable Part Number CAT6218-150TDGT3 CAT6218-180TDGT3 CAT6218-240TDGT3 CAT6218-250TDGT3 CAT6218-270TDGT3 CAT6218-280TDGT3 CAT6218-285TDGT3 (Note 10) CAT6218-300TDGT3 CAT6218-320TDGT3 (Note 10) CAT6218-330TDGT3 VOUT Voltage 1.50 V 1.80 V 2.40 V 2.50 V 2.70 V 2.80 V 2.85 V 3.00 V 3.20 V 3.30 V Package TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 Shipping 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 7. All packages are RoHS-compliant (Lead-free, Halogen-free). 8. The standard finish is NiPdAu. 9. The device used in the above example is a CAT6218-180TDGT3 (VOUT = 1.8 V, in a TSOT-23 package, NiPdAu, Tape & Reel, 3,000/Reel). 10. For other voltage options, please contact your nearest ON Semiconductor Sales office. 11. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC 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 SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative http://onsemi.com 9 CAT6218/D |
Price & Availability of CAT6218-240TDGT3
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