CAT6221 300 mA CMOS Dual LDO Regulator Description The 300 mA 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 300 mA. 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 100 mA, the dual LDO is ideal for battery−operated devices with supply voltage from 2.3 V to 5.5 V. The dual LDO offers 1% initial accuracy and very low dropout voltage, typical 210 mV at 300 mA. Stable operation is provided with small 1 mF 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 0.8 mm. http://onsemi.com 6 1 TSOT−23 TD SUFFIX CASE 419AF PIN CONNECTIONS 1 EN1 VOUT1 VIN GND EN2 VOUT2 (Top View) Features • • • • • • • • • • • • • Two Outputs with Guaranteed 300 mA Peak Output Current Low Dropout Voltages of 210 mV Typical at 300 mA Stable with Ceramic Output Capacitors Independent Enable Pins Under Voltage Lockout No−load Ground Current of 100 mA Typical Full−load Ground Current of 160 mA Typical ±1.0% Output Voltage Initial Accuracy (VOUT ≥ 2.0 V) ±2.0% Accuracy Over Temperature (VOUT ≥ 2.0 V) “Zero” Current Shutdown Mode Fold−back Current Limit and Thermal Protection TSOT−23 6−lead, 0.8 mm Height Package These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Applications • Cellular Phones • Battery−powered Devices • Consumer Electronics MARKING DIAGRAM T3YM T3 = CAT6221 Device Code Y = Production Year (last digit) M = Production Month: 1 − 9, A, B, C PIN FUNCTION 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 5 GND 6 VOUT1 LDO Output Voltage 2. Ground reference. LDO Output Voltage 1. ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. © Semiconductor Components Industries, LLC, 2009 December, 2009 − Rev. 1 1 Publication Order Number: CAT6221/D CAT6221 VIN VIN VOUT1 EN1 LDO1 VOUT1 EN1 Shutdown Switch Reference VIN 2.3 V to 5.5 V VIN VOUT1 CIN CAT6221 1 mF OFF ON OFF ON VOUT1 COUT1 VOUT2 1 mF EN1 VOUT2 EN2 GND LDO2 EN2 VOUT2 EN2 VOUT2 Shutdown Switch COUT2 1 mF GND Figure 1. Typical Application Circuit Figure 2. CAT6221 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. EN1 & 2 are the enable control logic (active high) for the regulator outputs. pins and ground. For better transient response, its value can be increased to 4.7 mF. The capacitor should be located near the device. For the TSOT23 6−lead package, a continuous 300 mA output current for both LDOs may turn−on the thermal protection. On each output, 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. VOUT1 & 2 are the LDO regulator outputs. A small 1 mF ceramic bypass capacitor is required between the VOUT Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit 0 to 6.5 V −0.3 to VIN + 0.3 V +150 _C Internally Limited (Note 1) mW −65 to +150 _C 260 _C 3 kV VIN VEN, VOUT Junction Temperature, TJ Power Dissipation, PD Storage Temperature Range, TS Lead Temperature (soldering, 5 sec.) ESD Rating (Human Body Model) 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 Range Unit VIN 2.3 to 5.5 V VEN 0 to VIN V Junction Temperature Range, TJ Package Thermal Resistance (TSOT23), θJA −40 to +125 _C 235 _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 CAT6221 Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3) (VIN = VOUT + 1.0 V, VEN = High, IOUT = 100 mA, CIN = COUT = 1 mF, ambient temperature of 25°C (over recommended operating conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.) Symbol VOUT−ACC Parameter Output Voltage Accuracy TCOUT Output Voltage Temp. Coefficient VR−LINE Line Regulation Conditions Initial accuracy (Note 4) Min Typ Max Unit −1.0 +1.0 % −2.0 +2.0 40 VIN = VOUT + 1.0 V to 5.5 V −0.2 ±0.1 −0.4 VR−LOAD Load Regulation IOUT = 100 mA to 300 mA ppm/°C +0.2 %/V +0.4 0.9 1.5 % 2 VDROP Dropout Voltage (Note 5) IOUT = 300 mA 210 280 mV 350 IGND IGND−SD Ground Current Shutdown Ground Current Both LDOs Enabled IOUT = 0 mA 100 Both LDOs Enabled IOUT = 300 mA 160 One LDO Enabled IOUT = 0 mA 55 One LDO Enabled IOUT = 300 mA 85 140 mA 170 75 90 VEN < 0.4 V 2 mA 4 PSRR Power Supply Rejection Ratio ISC Output short circuit current limit TON Turn−On Time dB f = 1 kHz 60 f = 20 kHz 45 VOUT = 0 V 130 mA 150 ms eN Output Noise Voltage (Note 6) 95 mVrms ROUT−SH Shutdown Switch Resistance 250 W VIN−UVLO Under voltage lockout threshold 2.15 V ESR BW = 10 Hz to 100 kHz COUT equivalent series resistance 5 500 mW ENABLE INPUT (EN1, EN2) VHI Logic High Level VIN = 2.3 to 5.5 V V VLO Logic Low Level VIN = 2.3 to 5.5 V 0.4 V IEN Enable Input Current VEN = 0.4 V 0.05 1 mA VEN = VIN 0.1 1 1.8 THERMAL PROTECTION TSD Thermal Shutdown 160 °C THYS Thermal Hysteresis 10 °C 3. Specification for 2.8 V output version unless specified otherwise. 4. For VOUT < 2.0 V, the initial accuracy is ±2% and across temp is ±3%. 5. 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. 6. Specification for 1.8 V output version. http://onsemi.com 3 CAT6221 TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option) (VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.) Figure 3. Output Voltage 1 vs. Temperature Figure 4. Output Voltage 2 vs. Temperature Figure 5. Load Regulation VOUT1 Figure 6. Load Regulation VOUT2 Figure 7. Ground Current (EN2 = GND) Figure 8. Ground Current (EN1 = GND) http://onsemi.com 4 CAT6221 TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option) (VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.) Figure 9. Ground Current (EN2 = GND) Figure 10. Ground Current (EN1 = GND) Figure 11. Output 1 Dropout Characteristics Figure 12. Ground Current vs. Input Voltage Figure 13. Output Voltage 1 vs. Load Current 1 Figure 14. Output Voltage 2 vs. Load Current 2 http://onsemi.com 5 CAT6221 TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option) (VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.) Figure 15. Line Regulation VOUT1 Figure 16. Line Regulation VOUT2 Figure 17. PSRR 1 & 2 vs. Frequency (30 mA Load) http://onsemi.com 6 CAT6221 TRANSIENT CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option) (VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.) NOTE: Figure 18. Enable Turn−on (100 mA Loads) Figure 19. Enable Turn−off (100 mA Loads) Figure 20. Enable Turn−on (300 mA/100 mA Loads) Figure 21. Enable Turn−off (300 mA/100 mA Loads) Figure 22. Enable Turn−on (100 mA/300 mA Loads) Figure 23. Enable Turn−off (100 mA/300 mA Loads) All transient characteristics are generated using the evaluation board CAT621XEVAL1. http://onsemi.com 7 CAT6221 TRANSIENT CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option) (VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.) NOTE: Figure 24. VOUT1 Load Transient Response (0.1 to 300 mA) Figure 25. VOUT2 Load Transient Response (0.1 to 300 mA) Figure 26. Line Transient Response (0.1 mA Loads) Figure 27. Line Transient Response (0.1/100 mA Loads) Figure 28. Line Transient Response (100/0.1 mA Loads) Figure 29. Separate Enable Operation (100 mA Loads) All transient characteristics are generated using the evaluation board CAT621XEVAL1. http://onsemi.com 8 CAT6221 PACKAGE DIMENSIONS TSOT−23, 6 LEAD CASE 419AF−01 ISSUE O SYMBOL D MIN NOM A1 0.01 0.05 0.10 A2 0.80 0.87 0.90 b 0.30 c 0.12 A e E1 1.00 0.45 0.15 D 2.90 BSC E 2.80 BSC E1 1.60 BSC E MAX e 0.20 0.95 TYP L 0.30 0.40 L1 0.60 REF L2 0.25 BSC 0º θ 0.50 8º TOP VIEW A2 A b q L A1 c L1 SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-193. http://onsemi.com 9 L2 CAT6221 Example of Ordering Information (Note 9) Prefix Device # Suffix CAT 6221 −MG TD −G T3 Company ID (Optional) Product Number 6221 VOUT Voltage (Note 10) Package TD: TSOT−23 Lead Finish G: NiPdAu Tape & Reel (Note 11) T: Tape & Reel 3: 3,000 / Reel See table below for Voltage Combinations ORDERING INFORMATION VOUT Voltage Package Shipping CAT6221−JFTD−GT3 Orderable Part Number 2.5 V / 1.5 V TSOT−23 3,000 / Tape & Reel CAT6221−JGTD−GT3 2.5 V / 1.8 V TSOT−23 3,000 / Tape & Reel CAT6221−JLTD−GT3 2.5 V / 2.7 V TSOT−23 3,000 / Tape & Reel CAT6221−JPTD−GT3 2.5 V / 3.0 V TSOT−23 3,000 / Tape & Reel CAT6221−MFTD−GT3 2.8 V / 1.5 V TSOT−23 3,000 / Tape & Reel CAT6221−MGTD−GT3 2.8 V / 1.8 V TSOT−23 3,000 / Tape & Reel CAT6221−MLTD−GT3 2.8 V / 2.7 V TSOT−23 3,000 / Tape & Reel CAT6221−MPTD−GT3 2.8 V / 3.0 V TSOT−23 3,000 / Tape & Reel CAT6221−PFTD−GT3 3.0 V / 1.5 V TSOT−23 3,000 / Tape & Reel CAT6221−PGTD−GT3 3.0 V / 1.8 V TSOT−23 3,000 / Tape & Reel CAT6221−PLTD−GT3 3.0 V / 2.7 V TSOT−23 3,000 / Tape & Reel CAT6221−PPTD−GT3 3.0 V / 3.0 V TSOT−23 3,000 / Tape & Reel CAT6221−SFTD−GT3 3.3 V / 1.5 V TSOT−23 3,000 / Tape & Reel CAT6221−SGTD−GT3 3.3 V / 1.8 V TSOT−23 3,000 / Tape & Reel CAT6221−SLTD−GT3 3.3 V / 2.7 V TSOT−23 3,000 / Tape & Reel CAT6221−SPTD−GT3 3.3 V / 3.0 V TSOT−23 3,000 / Tape & Reel 7. All packages are RoHS−compliant (Lead−free, Halogen−free). 8. The standard finish is NiPdAu pre−plated (PPF) lead frames. 9. The device used in the above example is a CAT6221−MGTD−GT3 (VOUT1 = 2.8 V, VOUT2 = 1.8 V, in a TSOT−23 package, NiPdAu, Tape & 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. 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