TS5218

TS5218 800mA Ultra Low Dropout Voltage Regulator with Enable TDFN 3x3 Pin Definition: 1. Enable 2. Input 3. Output 4. Feedback 5.6.7.8. Ground General Description The TS5218 is 800mA ultra low dropout linear voltage regulators that provide low voltage, high current output from an extremely small package. These regulators offers extremely low dropout (typically 400mV at 800mA) and very low ground current (typically 12mA at 800mA). The TS5218 is fully protected against over current faults, reversed input polarity, reversed lead insertion, over temperature operation, positive and negative transient voltage spikes, logic level enable control. Features ● ● ● ● ● ● Dropout voltage typically 0.4V @Io=800mA Output Current up to 800mA Low Ground Current Extremely Fast Transient Response Reversed Leakage & Reverse Battery Protection Current Limit & Thermal Shutdown Protection Ordering Information Part No. TS5218CQ RF Package DFN 3x3 Packing 3Kpcs / 7” Reel Application ● ● ● ● ● ● ● ● ● ULDO Linear Regulator for PC add-in Cards TM PowerPC Power Supplies Battery Powered Equipment Consumer and Personal Electronics High Efficiency Linear Power Supplies SMPS Post Regulator and DC to DC Modules High-efficiency Post Regulator for Switching Supply Portable Application Low-Voltage microcontrollers and Digital Logic Typical Application Circuit Absolute Maximum Rating (Note 1) Parameter Supply Voltage Enable Voltage Storage Temperature Range o Lead Soldering Temperature (260 C) ESD Symbol VIN VEN TSTG Value -20V ~ +20 +20 -65 ~ +150 5 (Note 3) +2.25 ~ +16 +2.25 ~ +16 Internally Limited -40 ~ +125 20 Unit V V o C S Operating Rating (Note 2) Operation Input Voltage Operation Enable Voltage Power Dissipation (Note 4) Operating Junction Temperature Range Thermal Resistance Junction to Case 1/7 VIN (operate) VEN (operate) PD TJ RθJC V V W o o C C/W Version: A09 TS5218 800mA Ultra Low Dropout Voltage Regulator with Enable Electrical Characteristics Parameter Fixed Reference Output Voltage Line Regulation Load Regulation Output Voltage Temp. Coefficient Dropout Voltage (Note 5) ΔVOUT = -1% IL=100mA IL=400mA IL=800mA IL=100mA IL=500mA IL=800mA VIN = VOUT + 1V, VIN =2.5V for fixed reference output voltage, Venable= 2.25V, Ta = 25 C, unless otherwise specified. o Conditions IL=10mA 10mA ≤ IL ≤ 800mA, 2.5V ≤ VIN ≤ 16V IL=10mA, Vo+1V ≤ VIN ≤ 16V VIN =Vout+1V, 8mA≤IL≤300mA VIN =Vout+1V, 10mA≤IL≤800mA Min 0.980|Vo| 0.970|Vo| ------------2.25 ---- Typ 1.24 (VREF) 0.05 0.05 0 .2 40 100 300 400 0.7 4.0 12.0 1.8 ----40 Max 1.020|Vo| 1.030|Vo| 0 .5 0.1 1.0 100 250 380 700 2 6 20 -0.8 -75 4 120 Unit V % % ppm/ C mV o Quiescent Current (Note 6) Current Limited Input Logic Voltage Enable Pin Input Current Adjust Pin Bias Current VIN= VOUT +1V mA A V uA nA o VOUT =0, VIN = VOUT +1V Low (OFF) High (ON) VEN =2.25V VEN =0.8V Reference Voltage Temp. Coefficient (Note 8) -20 -ppm/ C o Adjust Pin Bias Current Temp. Coefficient -0 .1 -nA/ C Note: 1. Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed specifications and test conditions see the Electrical Characteristics. 2. The device is not guaranteed to operate outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. 4. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ, the junction to ambient thermal resistance, ӨJA, and the ambient temperature, Ta. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The effective value of ӨJA can be reduced by using a heat sink, Pd(max) = (TJ(max) – Ta) / ӨJA. 5. Dropout voltage is defined as the input to output differential at which the output voltage drops -1% below its nominal value measured at 1V differential. 6. Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the ground pin current and output load current, IGND = IIN - IOUT for fix output voltage, IGND = IIN - IOUT +10mA for fix reference output voltage in full load regulation. 7. VREF ≤ VOUT ≤ (VIN – 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤ 1.0A. 8. Output voltage temperature coefficient is ΔVOUT (worse cast) / (TJ(max) – TJ(MIN)) where is TJ(max) +125 C and TJ(MIN) is 0 C. o o 2/7 Version: A09 TS5218 800mA Ultra Low Dropout Voltage Regulator with Enable Functional Diagram Application Information The TS5218 is high performance with low dropout voltage regulator suitable for moderate to high current and voltage regulator application. Its 700mV dropout voltage at full load and over temperature makes it especially valuable in battery power systems and as high efficiency noise filters in post regulator applications. Unlike normal NPN transistor design, where the base to emitter voltage drop and collector to emitter saturation voltage limit the minimum dropout voltage, dropout performance of the PNP output of these devices is limited only by low VCE saturation voltage. The TS5218 is fully protected from damage due to fault conditions. Linear current limiting is provided. Output current during overload conditions is constant. Thermal shutdown the device when the die temperature exceeds the maximum safe operating temperature. Transient protection allows device survival even when the input voltage spikes above and below nominal. The output structure of these regulators allows voltages in excess of the desired output voltage to be applied without reverse current flow. Output Capacitor Requirement The TS5218 requires an output capacitor to maintain stability and improve transient response is necessary. The value of this capacitor is dependent upon the output current, lower currents allow smaller capacitors. TS5218 output capacitor selection is dependent upon the ESR of the output capacitor to maintain stability. When the output capacitor is 10uF or greater, the output capacitor should have an ESR less than 2Ω. This will improve transient response as well as promote stability. Ultra low ESR capacitors (