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TS5204_1

TS5204_1

  • 厂商:

    TSC

  • 封装:

  • 描述:

    TS5204_1 - 150mA Low Noise LDO Voltage Regulator - Taiwan Semiconductor Company, Ltd

  • 数据手册
  • 价格&库存
TS5204_1 数据手册
TS5204 150mA Low Noise LDO Voltage Regulator Pin assignment SOT-89 1. Output 2. Ground 3. Input SOT-23 1. Output 2. Input 3. Ground Low Power Consumption Low Dropout Voltage 0.275V General Description The TS5204 series is an efficient linear voltage regula tor w ith 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), provid ing high ou tput current even when the application requires very low d ropout voltage. The TS5204 series is included a precision voltage reference, error correction circuit, a current limited output driver, over tempe rature shutdown and revered ba ttery protection. The TS5204 series is available in 3-pin SOT-23 and SOT -89 package. Features      Ultra low noise outpu t. Output current up to 150mA Low dropout voltage Low power consumption Internal cu rrent lim it Thermal shutdown protection Ordering Information Part No. T S5 2 0 4 CXx x T S5 2 0 4 CYx x Operat ing Temp. -40 ~ +125 C o Package SOT-23 SOT-89 Note: Whe re xx denotes voltage option, available are 5.0V, 3.3V, 3.0V, 2.9V, 2.8V and 2.5V . Contact factory for additional voltage options.  Applications      Cellular telephones Palmtops, notebook computers Battery powered equipmen t Consumer and personal electronics SMPS post regula tor and D C to DC modules High-efficiency linear powe r supplies Typical Application Circuit  Absolute Maximum Rating (Note 1) Input Supply Voltage Power Dissipation (Note 2) Thermal Resistance SOT-23 SOT-89 Vin PD Өja Tj TSTG o -20~ +20 Internal lim ited 220 180 -40 ~ +125 -65 ~ +150 5 o V C/W o o Operating Junction Tempera ture Range Storage Temperatu re Range Lead Soldering Temperature (260 C) C C S TS5204 ser ies 1 -4 2004/09 rev. D 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 C, unles s otherwise specified. o Parameter Output Voltage Output Voltage Temp. Coefficient Line Regulation Load Regulation (Note 5) Conditions Vin=Vo + 1V Vin=Vo + 1V, Io= 50mA (Note 4) Vo+1V ≤ Vin ≤ 16V 0.1mA ≤ Io ≤ 150mA Io=100uA Min 0.97|Vo| 0.96|Vo| --------------- Typ Vo u t 40 0.005 0.02 17 110 140 165 80 350 600 1300 300 75 0.05 260 Max 1.03|Vo| 1.04|Vo| -0.05 0.2 50 150 250 275 125 600 1000 1900 500 ---- Unit V p p m/ C %/V %/V o Dropout Voltage (Note 6 ) Io=50mA Io=100mA Io=150mA Io=100uA mV Ground Pin Cu rrent (Note 7) Io=50mA Io=100mA Io=150mA uA Output Current L imit Power Supply Rejection Ratio Thermal Regulation (Note 8) Output Noise Vout=0V At f=100Hz, Io=100uA, mA dB %/W nV√Hz Io=50mA, Cout=2.2uF, 470pF from bypass to G round -- Note 1: Exceeding the absolute maximum rating may damag e the device. Note 2: The maximum allowable power dissipation at any Ta is Pd(max) = [ Tj(max) - Ta] + Ө ja. Exceeding the maximum allowable powe r dissipation w ill result in excessive die tempera ture, and the regulato r will go into thermal shutdown. Note 3: The device is not guaranteed to function outside its o perating ra ting. Note 4: Output voltage temperatu re coefficient is defined as the worst case voltage change divided by the total temperature range. Note 5: Regulation is measured at constant junction tempera ture using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 1 mA to 150mA. C hanges in output voltage due to heating effects are covered by the the rmal regulation specification. Note 6: D ropout voltage is defined as the input to output d ifferential a t which the outpu t voltage drops 2% below its nominal value measured at 1V differential. Note 7: Ground pin current is the regula tor quiescent current plus pass transisto r base current. The tota l current drawn fro m 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” afte r a change in power dissipation is applied, excluding load o r line regula tion e ffects. Specifications are fo r a 150mA load pulse a t V in=16V for t=10mS. TS5204 ser ies 2 -4 2004/09 rev. D Application Information Thermal Characteristics TS5204 series is designed to provide 150mA of continuous current in a very small package. Maximum power dissipation can be calculated based on the output current and the voltage d rop across the pa rt. To determine the maximum power dissipation of the package, use the junction-ambient therma l resistance of the device and the follow ing basic equation: Pd(max) = [ Tj(max) – Ta ] /Θ ja Tj(max) is the maximum junction temperature of the die(125 C), o Input Capacitor Requirement An input capacitor of 1uF or greate r is recommended when the device is more than 10” away from the bulk AC supply capacitance or when the supply is a batte ry. Output Capacitor Requirement The TS5204 series requires an output capacitor to maintain stability and improve transient response is necessary. 2.2uF minimum is recommended. Larger values improve the regulato r’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 under damped transient response. Most of tantalum or aluminum electrolytic capacitors are adequate; film types will wo rk. Since many aluminum electrolytic have electrolytes that freeze at about –30 C, solid tanta lums are recommended for operation below –25 C. At lower values of output current, less output capacitance is required for output stability. The capacitor can be reduced to 0.47uF fo r current below 10mA or 0.33uF for currents below 1 mA. o o and Ta is the ambient operating temperature . Θ ja is layout dependent, the actual power dissipation of the regulator circuit can be de termined using the equation: Pd = ( Vin – Vout ) * Iout + Vin * Ignd Substituting Pd(max ) for Pd and solving fo r the operating conditions tha t are c ritical to the application will give the maximum operating conditions for the regulator circuit. For example , when operating the TS5204CX33 at room temperatu re w ith a minimu m footprint layout, the maximum input voltage for a set output current can be determ ined as follows: Pd(max) = (125 C – 25 C) / 220 C/W Pd(max) = 455mW The junction to ambient thermal resistance for the minimum footprint is 220 C/W, the maximum powe r dissipation must not be exceeded for proper operation . Using the output voltage of 3.3V and an output current of 150mA, the maximum input voltage can be determined. Form t eh e lectrical characteristics table, the maximum ground current fo r 150mA output current is 2.5mA. 445mW = ( Vin – 3.3V ) * 150mA + V in * 2.5mA 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. o o o o No Load Stability The TS5204 series iwill remain stable and in regulation with no load, unlike many other voltage regulators. This is especially importan t in CMOS RAM keep alive applications. Dual Supply Operation When used in dual supply systems where the regulator load is retu rned to a negative supply, the output voltage must be diode clamped to ground. TS5204 ser ies 3 -4 2004/09 rev. D SOT-89 Mechanical Drawing A B A B SOT-89 DIME NSION I DIM A B C MILLIMETERS MIN 4.40 1.50 2.30 0.40 1.50 3.00 0.89 4.05 1.4 0.35 MA X 4.60 1.7 2.60 0.52 1.50 3.00 1.20 4.25 1.6 0.44 INCHES MIN 0.173 0.059 0.090 0.016 0.059 0.118 0.035 0.159 0.055 0.014 MA X 0.181 0.070 0.102 0.020 0.059 0.118 0.047 0.167 0.068 0.017 H G H G C C D E F G E E D D J H I J F F SOT-23 Mechanical Drawing A B A B F F SOT-23 DIME NSION DIM A MILLIMETERS MIN 2.88 0.39 1.78 0.51 1.59 1.04 0.07 MA X 2.91 0.42 2.03 0.61 1.66 1.08 0.09 INCHES MIN 0.113 0.015 0.070 0.020 0.063 0.041 0.003 MA X 0.115 0.017 0.080 0.024 0.065 0.043 0.004 E E B C D E F G D CD G G C TS5204 ser ies 4 -4 2004/09 rev. D
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