150mA CMOS LDO Regulator (Preliminary) Description CYT6166 Features The CYT6166 series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low dropout voltage and low ground current. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits. ¾ Typical Low Dropout Voltage of 203mV at 75mA. ¾ Guaranteed 150mA output over the full operating temperature range. ¾ Excellent Line and Load Regulation. ¾ High Accuracy Output Voltage of 2%. ¾ Typical Low Ground Current at 1mA ¾ Current Limiting and Thermal Protection. ¾ Standard SOT-23-3L, TO-92, and SOT-323-3L The CYT6166 has been designed to be used Package. with low cost capacitors and requires a minimum Applications output capacitor of 1.0µF. Standard voltage versions ¾ Cellphones. are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3V. ¾ Wireless LAN’s. ¾ Hand-Held Instrumentation. ¾ Portable Video Game Devices. ¾ Digital Cameras. Ordering/Marking Information Package Ordering Information 3.3V CYT6166AHN 2.8V CYT6166BHN 2.5V CYT6166CHN 1.8V CYT6166DHN 1.5V CYT6166EHN 3.0V CYT6166FHN 3.3V CYT6166AHG 2.8V CYT6166BHG 2.5V CYT6166CHG 1.8V CYT6166DHG 1.5V CYT6166EHG 3.0V CYT6166FHG Marking Information CYT6166AHN YYWW CYT6166BHN YYWW CYT6166CHN YYWW CYT6166DHN YYWW CYT6166EHN YYWW CYT6166FHN YYWW CYT6166AHG YYWW CYT6166BHG YYWW CYT6166CHG YYWW CYT6166DHG YYWW CYT6166EHG YYWW CYT6166FHG YYWW YY: year code WW: week code. Preliminary and all contents are subject to change without prior notice. 1 150mA CMOS LDO Regulator (Preliminary) CYT6166 Ordering/Marking Information (Continued) Package Ordering Information Marking Information 3.3V CYT6166ALN 166AN_ 2.8V CYT6166BLN 166BN_ 2.5V CYT6166CLN 166CN_ 1.8V CYT6166DLN 166DN_ 1.5V CYT6166ELN 166EN_ 3.0V CYT6166FLN 166FN_ 3.3V CYT6166ALG 166AG_ 2.8V CYT6166BLG 166BG_ 2.5V CYT6166CLG 166CG_ 1.8V CYT6166DLG 166DG_ 1.5V CYT6166ELG 166EG_ 3.0V CYT6166FLG 166FG_ 2003, and underlined for 2004. The 3.3V CYT6166APN 166AN_ naming pattern continues with 2.8V CYT6166BPN 166BN_ consecutive characters for later 2.5V CYT6166CPN 166CN_ years. 1.8V CYT6166DPN 166DN_ 1.5V CYT6166EPN 166EN_ 3.0V CYT6166FPN 166FN_ 3.3V CYT6166APG 166AG_ 2.8V CYT6166BPG 166BG_ 2.5V CYT6166CPG 166CG_ 1.8V CYT6166DPG 166DG_ 1.5V CYT6166EPG 166EG_ 3.0V CYT6166FPG 166FG_ Starting with 1, a bar on top of 1 is for production year 2001, and underlined 1 is for year 2002. The next character is marked on top for The last character is the week code. (A-Z: 1-26, a-z: 27-52) Preliminary and all contents are subject to change without prior notice. 2 150mA CMOS LDO Regulator (Preliminary) Absolute Maximum Ratings(1) CYT6166 Operating Ratings(2) Supply Input Voltage (VIN) ..……...….… 0.7V to +6V Supply Input Voltage (VIN) ……...... +2.0V to +5.5V (3) Junction Temperature (TJ) …….….. 0°C to +125°C Power Dissipation (PD) ……….. Internally Limited Junction Temperature (TJ) ……..... …0°C to +125°C Package Thermal Resistance Lead Temperature (soldering, 5 sec.) …....…. 260°C 160°C/W (TO-92) Storage Temperature (TS) ……….. -40°C to +150°C 230°C/W (SOT-23-3L) 250°C/W (SOT-323-3L) Electrical Characteristics VIN = 5V; CIN = 2.2µF; COUT = 2.2µF; IOUT = 10mA; TJ = 25°C; unless otherwise noted Symbol Parameter Conditions CYT6166 – 1.5V CYT6166 – 1.8V CYT6166 – 2.5V CYT6166 – 2.8V CYT6166 – 3.0V CYT6166 – 3.3V Min Typ Max Unit 1.470 1.764 2.450 2.744 2.940 3.234 1.5 1.8 2.5 2.8 3.0 3.3 1.530 1.836 2.550 2.856 3.060 3.366 V V V V V VOUT Output Voltage Accuracy ∆VOUT Line Regulation VIN = VOUT + 1V to 5.5V, IOUT = 10mA -- 1 -- % ∆VOUT Load Regulation (5) VIN = 5V; IOUT = 10mA to 150mA -- 1 -- % Note 4 -- 0.79 -- mV/°C IOUT = 10mA -- 20 -- IOUT = 75mA -- 203 -- IOUT = 150mA -- 500 -- Thermal Thermal Protection Temperature -- 150 -- Protection Protection Hysterisys -- 20 -- PSRR Ripple Rejection f = 120 Hz -- 51 -- dB IQ Quiescent Current IOUT = 10mA -- 1 2 mA ILIMIT Current Limit 300 -- -- mA Output Voltage ∆VOUT/∆T Temperature Coefficient VIN – VOUT TPROTECTION Dropout Voltage (6) Preliminary and all contents are subject to change without prior notice. 3 mV °C 150mA CMOS LDO Regulator (Preliminary) CYT6166 Note 1: Exceeding the absolute maximum rating may damage the device. Note 2: The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) = (TJ(MAX) – TA)/ΘJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See “Thermal Consideration” section for details Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range. Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 6: 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. Typical Application Preliminary and all contents are subject to change without prior notice. 4 150mA CMOS LDO Regulator (Preliminary) Application Hints CYT6166 Thermal Considerations Like any low dropout regulator, CYT6166 requires It is important that the thermal limit of the package is external capacitors to ensure stability. The not exceeded. The CYT6166 has built-in thermal external capacitors must be carefully selected to protection. ensure performance. the IC will enter protection, and VOUT will be pulled Input Capacitor An input capacitor of at least 2.2µF is required. Ceramic or Tantalum can be used. The value can be increase without upper limit. to ground. When the thermal limit is exceeded, The power dissipation for a given application can be calculated as following: The power dissipation (PD) is PD = IOUT * [VIN – VOUT] Output Capacitor An output capacitor is required for stability. It must The thermal limit of the package is then limited to be placed no more than 1 cm away from the VOUT PD(MAX) = [TJ – TA]/ΘJA where TJ is the junction pin, and connected directly between VOUT and GND temperature, TA is the ambient temperature, and pins. ΘJA is around 250°C/W for CYT6166. CYT6166 is The minimum value is 2.2µF but may be increase without limit. designed to enter thermal protection at 150°C. For example, if TA is 25°C then the maximum PD is limited to about 0.5W. In other words, if IOUT(MAX) = 150mA, then [VIN – VOUT] cannot exceed 3.33V. Preliminary and all contents are subject to change without prior notice. 5 150mA CMOS LDO Regulator (Preliminary) CYT6166 OUTLINE DRAWING SOT-23-3L (SC-59) C J N H B DIM A B C D E F G H J K L D A E F G K L DIMENSIONS INCHES MM MIN MAX MIN MAX 0.110 0.047 0.083 0.035 0.070 0.018 0.015 0.0005 0.034 0.003 - 0.120 0.055 0.104 0.040 0.080 0.024 0.020 0.004 0.040 0.007 0.027 2.80 1.20 2.10 0.89 1.78 0.45 0.37 0.013 0.887 0.085 - 3.04 1.40 2.64 1.03 2.05 0.60 0.51 0.10 1.02 0.18 0.69 OUTLINE DRAWING TO-92 A N DIM B D E G F H K J A B E F G H J K DIMENSIONS INCHES MM MIN MAX MIN MAX 0.175 0.170 0.500 0.016 0.045 0.095 0.080 0.125 0.205 0.210 0.610 0.021 0.055 0.105 0.105 0.165 4.445 4.318 12.70 0.407 1.143 2.413 2.032 3.175 Preliminary and all contents are subject to change without prior notice. 6 5.207 5.334 15.50 0.533 1.397 2.667 2.667 4.191 150mA CMOS LDO Regulator (Preliminary) OUTLINE DRAWING SOT-323-3L Preliminary and all contents are subject to change without prior notice. 7 CYT6166