TS39101

TS39101/2/4 1A Ultra Low Dropout Voltage Regulator with Multi-Function SOP-8 Pin Definition: TS39101CSxx 1. Enable 2. Input 3. Output 4. Flag 5.6.7.8. Ground TS39102CS 1. Enable 2. Input 3. Output 4. Feedback 5.6.7.8. Ground TS39104CS 1. Enable 2. Input 3. Feedback 4. Output 5.6.7.8. Ground General Description The TS39101/2/4 are 1A 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 1A) and very low ground current (typically 12mA at 1A). The TS39101/2/4 are 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 and error flag which signals whenever the output falls out of regulation. On the TS39101/2/4, the enable pin may be tied to Vin if it is not required for enable control. Features ● ● ● ● ● ● ● Dropout voltage typically 0.4V @Io=1.0A Output Current up to 1A Low Ground Current Extremely Fast Transient Response Reversed Leakage & Reverse Battery Protection Error Flag Signals Output (TS39101 only) Current Limit & Thermal Shutdown Protection Ordering Information Part No. Package Packing TS39101CSxx RL SOP-8 2.5Kpcs / 13” Reel TS39102CS RL SOP-8 2.5Kpcs / 13” Reel TS39104CS RL SOP-8 2.5Kpcs / 13” Reel Note: Where xx denotes voltage option, available are 18=1.8V 25=2.5V 33=3.3V 50=5.0V Leave blank for adjustable version (TS39102/4) Contact to factory for addition output voltage option. 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 TS39101 TS39102/4 1 /9 Version: A08 TS39101/2/4 1A Ultra Low Dropout Voltage Regulator with Multi-Function Absolute Maximum Rating (Note 1) Supply Voltage Enable Voltage Storage Temperature Range Lead Soldering Temperature (260 C) ESD o VIN VEN TSTG -20V ~ +20 +20 -65 ~ +150 5 (Note 3) V o V 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 VIN (operate) VEN (operate) PD TJ RθJC +2.25 ~ +16 +2.25 ~ +16 Internally Limited -40 ~ +125 20 o o V V W o C C/W Electrical Characteristics VIN = VOUT + 1V, VIN =2.5V for fixed reference output voltage, Venable= 2.25V, Ta = 25 C, unless otherwise specified. Parameter Fixed Output Voltage Fixed Reference Output Voltage (TS39102/4) Line Regulation Load Regulation Output Voltage Temp. Coefficient Dropout Voltage (Note 5) Conditions 10mA ≤ IL ≤ 1.0A, Vo+1V ≤ VIN ≤ 8V IL=10mA 10mA ≤ IL ≤ 1.0A, 2.5V ≤ VIN ≤ 16V IL=10mA, Vo+1V ≤ VIN ≤ 16V VIN =Vout+1V, 8mA≤IL≤300mA VIN =Vout+1V, 10mA≤IL≤1A IL=100mA IL=500mA IL=1.0A IL=100mA IL=500mA IL=1.0A Min 0.980|Vo| 0.980|Vo| 0.970|Vo| -----------------93 -- Typ VOUT 1.24 (VREF) 0.05 0.05 0 .2 40 100 275 400 0.7 4.0 12.0 1.8 40 20 0 .1 ----1 Max 1.020|Vo| 1.020|Vo| 1.030|Vo| 0 .5 0.1 1.0 100 250 350 630 2 6 20 -120 --2 400 99 --- Unit V V % % ppm/ C mV o ΔVOUT = -1% Quiescent Current (Note 6) Current Limited Adjust Pin Bias Current VIN= VOUT +1V mA A nA ppm/ C o nA/ C uA mV % % % o VOUT =0, VIN = VOUT +1V (Note 8) Reference Voltage Temp. Coefficient Adjust Pin Bias Current Temp. Coefficient Flag Output (TS39101) Output Leakage Current Output Low Voltage (Note 9) Upper Threshold Voltage Lower Threshold Voltage Hysteresis VOH=16V VIN=0.9 * VOUT, IOL=250uA % of VOUT % of VOUT 2 /9 Version: A08 TS39101/2/4 1A Ultra Low Dropout Voltage Regulator with Multi-Function Electrical Characteristics (Continue) Enable Input (TS39101/2/4) Input Logic Voltage Enable Pin Input Current Low (OFF) High (ON) VEN =2.25V -2.25 ----0.8 -75 V uA VEN =0.8V --4 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. Note 2: The device is not guaranteed to operate outside its operating rating. Note 3: Devices are ESD sensitive. Handling precautions recommended. Note 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. Note 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. Note 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. Note 7: VREF ≤ VOUT ≤ (VIN – 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤ 1.0A. Note 8: Output voltage temperature coefficient is ΔVOUT (worse cast) / (TJ(max) – TJ(MIN)) where is TJ(max) +125 C and o TJ(MIN) is 0 C. Note 9: For adjustable device and fixed device with VOUT > 2.25V. o Pin Description Pin Configuration Enable Input Ground Output Flag (fixed voltage) Feed Back (adjustable) Pin Description TTL/COMS compatible input. Logic high is enable; logic low or open is shutdown Unregulated input: +16V maximum supply Ground: Ground pin and TAB / heat sink are internally connected. Regulator output Error Flag (output): Open-collector output. Active low indicates an output fault condition, if no used, leave open. Adjustment input: Feedback input. Connect to resistive voltage-divider network. 3 /9 Version: A08 TS39101/2/4 1A Ultra Low Dropout Voltage Regulator with Multi-Function Functional Diagram TS39101 Fixed Regulator with Flag and Enable Block Diagram TS39102/4 Adjustable Regulator Block Diagram Application Information The TS39101/2/4 are high performance with low dropout voltage regulator suitable for moderate to high current and voltage regulator application. Its 630mV 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 TS39101/2/4 s 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. 4 /9 Version: A08 TS39101/2/4 1A Ultra Low Dropout Voltage Regulator with Multi-Function Application Information (Continue) Output Capacitor Requirement The TS39101/2/4 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. TS39101/2/4 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 (