TS5204 150mA Low Noise LDO Voltage Regulator Pin assignment SOT-89 1. Output 2. Ground 3. Input Low Power Consumption Low Dropout Voltage 0.275V SOT-23 1. Output 2. Input 3. Ground General Description The TS5204 series is an efficient linear voltage regulator with ultra low noise output, very low dropout voltage (typically 17mV at light loads and 165mV at 150mA), and very low power consumption (600uA at 100mA), providing high output current even when the application requires very low dropout voltage. The TS5204 series is included a precision voltage reference, error correction circuit, a current limited output driver, over temperature shutdown and revered battery protection. The TS5204 series is available in 3-pin SOT-23 and SOT-89 package. Features Ordering Information Ultra low noise output. Part No. Operating Temp. o Output current up to 150mA TS5204CXxx Low dropout voltage SOT-89 TS5204CYxx Note: Where xx denotes voltage option, available are 5.0V, 3.3V, 3.0V, 2.9V, 2.8V, 2.5V and 1.8V. Leave blank for adjustable version. Contact factory for additional voltage options. Low power consumption Internal current limit Thermal shutdown protection -40 ~ +125 C Package SOT-23 Typical Application Circuit Applications Cellular telephones Palmtops, notebook computers Battery powered equipment Consumer and personal electronics SMPS post regulator and DC to DC modules High-efficiency linear power supplies Absolute Maximum Rating (Note 1) Input Supply Voltage Vin -20~ +20 Power Dissipation (Note 2) PD Internal limited Өja 220 Thermal Resistance SOT-23 SOT-89 o C/W 180 Operating Junction Temperature Range Tj Storage Temperature Range TSTG o Lead Soldering Temperature (260 C) TS5204 series V -40 ~ +125 o C -65 ~ +150 o C 5 1-4 S 2004/09 rev. A Recommend Operating Rating (Note 3) Input Supply Voltage Vin +2.5 ~ +16 V Electrical Characteristics Vin=Vo+1V, Io=100uA, Cout=1uF, Vce≥2V, Tj = 25 oC, unless otherwise specified. Parameter Output Voltage Conditions Min Typ Max Unit Vin=Vo + 1V 0.99|Vo| Vout 1.01|Vo| V Vin=Vo + 1V, Io= 50mA 0.98|Vo| 1.02|Vo| Output Voltage Temp. Coefficient (Note 4) -- 40 -- ppm/ oC Line Regulation Vo+1V ≤ Vin ≤ 16V -- 0.005 0.05 %/V Load Regulation (Note 5) 0.1mA ≤ Io ≤ 150mA -- 0.02 0.2 %/V Dropout Voltage (Note 6) Io=100uA -- 17 50 Io=50mA -- 110 150 Io=100mA -- 140 250 Io=150mA -- 165 275 Io=100uA -- 80 125 Io=50mA -- 350 600 Io=100mA -- 600 1000 Io=150mA -- 1300 1900 Output Current Limit Vout=0V -- 300 500 mA Power Supply Rejection Ratio At f=100Hz, Io=100uA, -- 75 -- dB -- 0.05 -- %/W -- 260 -- nV√Hz Ground Pin Current (Note 7) Thermal Regulation (Note 8) Output Noise Io=50mA, Cout=2.2uF, mV uA 470pF from bypass to Ground Note 1: Exceeding the absolute maximum rating may damage the device. Note 2: The maximum allowable power dissipation at any Ta is Pd(max) = [ Tj(max) - Ta] + Өja. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. Note 3: The device is not guaranteed to function outside its operating rating. Note 4: Output voltage temperature coefficient is defined as 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 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. Note 7: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load current plus the ground pin current. Note 8: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 150mA load pulse at Vin=16V for t=10mS. TS5204 series 2-4 2004/09 rev. A Application Information Thermal Characteristics Input Capacitor Requirement TS5204 series is designed to provide 150mA of An input capacitor of 1uF or greater is recommended continuous current in a very small package. Maximum when the device is more than 10” away from the bulk power dissipation can be calculated based on the AC supply capacitance or when the supply is a battery. output current and the voltage drop across the part. To Output Capacitor Requirement determine the maximum power dissipation of the package, use the junction-ambient thermal resistance of the device and the following basic equation: Tj(max) is the maximum junction temperature of the and Ta is the ambient maintain stability and improve transient response is necessary. 2.2uF minimum is recommended. Larger Pd(max) = [ Tj(max) – Ta ] /Θja die(125oC), The TS5204 series requires an output capacitor to operating temperature. Θja is layout dependent, the actual power dissipation of the regulator circuit can be determined using the equation: values improve the regulator’s transient response. The output capacitor value may be increased without limit. The output capacitor should have an ESR (effective series resistance) less than 5Ω and a resonant frequency above 1MHz. Ultra low ESR capacitors can cause a low amplitude oscillation on the output and/or Pd = ( Vin – Vout ) * Iout + Vin * Ignd under damped transient response. Most of tantalum or Substituting Pd(max) for Pd and solving for the aluminum electrolytic capacitors are adequate; film operating conditions that are critical to the application types will work. Since many aluminum electrolytic have will give the maximum operating conditions for the electrolytes that freeze at about –30oC, solid tantalums regulator circuit. For example, when operating the are recommended for operation below –25oC. At lower TS5204CX33 at room temperature with a minimum values of output current, less output capacitance is footprint layout, the maximum input voltage for a set required for output stability. The capacitor can be output current can be determined as follows: reduced to 0.47uF for current below 10mA or 0.33uF Pd(max) = (125 C – 25 C) / 220 C/W for currents below 1mA. Pd(max) = 455mW No Load Stability The junction to ambient thermal resistance for the The TS5204 series iwill remain stable and in regulation minimum footprint is 220oC/W, the maximum power with no load, unlike many other voltage regulators. dissipation must not be exceeded for proper operation. This is especially important in CMOS RAM keep alive Using the output voltage of 3.3V and an output current applications. of 150mA, the maximum input voltage can be Dual Supply Operation o o o determined. Formt eh electrical characteristics table, the maximum ground current for 150mA output current is When used in dual supply systems where the regulator 2.5mA. load is returned to a negative supply, the output 445mW = ( Vin – 3.3V ) * 150mA + Vin * 2.5mA voltage must be diode clamped to ground. 445mW = Vin * 150mA – 3.3 * 150mA + Vin * 2.5mA 445mW = Vin * 150mA – 495mW + Vin * 2.5mA 950mW = Vin * 152.5mA Vin(max) = 6.23v Therefore, a 3.3V application at 150mA of output current can accept a maximum input voltage of 6.23V in a SOT-23 package. TS5204 series 3-4 2004/09 rev. A SOT-89 Mechanical Drawing A I B G E G H 0.89 4.05 1.20 4.25 0.035 0.159 0.047 0.167 I J 1.4 0.35 1.6 0.44 0.055 0.014 0.068 0.017 DIM C H A B C D E F SOT-89 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 4.40 4.60 0.173 0.181 1.50 1.7 0.059 0.070 2.30 2.60 0.090 0.102 0.40 0.52 0.016 0.020 1.50 1.50 0.059 0.059 3.00 3.00 0.118 0.118 D J F SOT-23 Mechanical Drawing A B F DIM E G D TS5204 series A B C D E F G SOT-23 DIMENSION MILLIMETERS INCHES MIN 2.88 0.39 1.78 0.51 1.59 1.04 0.07 MAX 2.91 0.42 2.03 0.61 1.66 1.08 0.09 MIN 0.113 0.015 0.070 0.020 0.063 0.041 0.003 C 4-4 2004/09 rev. A MAX 0.115 0.017 0.080 0.024 0.065 0.043 0.004