EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Description Features The EC49513A/L is a 4-Low (Low dropout, Low quiescent Current, Low noise, Low cost) linear regulator with ON/OFF control and EC49513L can discharge output capacitor charge fast. The device operates in the input voltage range from +2.2V to +7.0V and delivers 300mA output current. The high accuracy output voltage is preset at an internally trimmed voltage 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V or 3.3V. Other output voltages can be mask optioned from 1.2V to 5.0V with 100mV increment, except the EC49513A/L-285 which has 2.85V output voltage. The EC49513A/L consists of a 1.0V reference compares amplifier, a P-channel pass transistor, and an enable/disable logic circuit. Other features include soft start function, short circuit protection, and thermal shutdown protection. The EC49513A/L is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the chip. The EC49513A/L devices are available in SOT23-5L、UFN-6 and TSOT23-5 packages. z E-CMOS Corp. (www.ecmos.com.tw) Page 1 of 24 z z z z z z z z z z z z z z z EC49513A/L Without / With Fast Discharge Operating Voltage Range：+2.2V to +7.0V Output Voltages：+1.2V to +5.0V with 100mV Maximum Output Current：300 mA Dropout Voltage：120mV @ 100mA Low Current Consumption 15μA (Typ.) Shutdown Current：0.1μA (Typ.) ±2% Output Voltage Accuracy (special ±1% highly accurate) Low ESR Capacitor Compatible High Ripple Rejection：70 dB Output Current Limit Protection (450mA) Short Circuit Protection (150mA) Thermal Overload Shutdown Protection Control Output ON/OFF Function SOT23-5L、UFN-6 and TSOT23-5 packages. Green (Halogen Free With Commercial Standard) Application z Battery-Powered Devices. Personal Communication Devices. Mobile Phones, Cordless Phone. Portable Games. z Portable AV equipment. z z z 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Block Diagram E-CMOS Corp. (www.ecmos.com.tw) Page 2 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Pin Descriptions Pin Assignment SOT23-5L/TSOT23-5L (Top View) UFN-6 (Bottom View) Pin# Pin# SOT23-5L/TSOT23-5L UFN-6 Symbol Function 1 1 VIN Power Input. 2 5 GND Ground Pin. 3 6 EN Chip Enable Pin. 4 2,4 NC No Connection. 5 3 VOUT Voltage Output Pin. Ordering Information Package SOT23-5L Part Number Information EC49513A-XXXB2G The XXX character represents Output Voltage. Example: 12=1.2V, 15=1.5V... EC49513L-XXXB2G UFN-6 EC49513A-XXXFG EC49513L-XXXFG TSOT23-5 EC49513A-XXXT2G EC49513L-XXXT2G E-CMOS Corp. (www.ecmos.com.tw) Page 3 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Marking Information Package Part Number Marking EC49513A-XXXB2G 3AVXX Marking Information The 1st to 2nd character represents the VOUT Type. 3A: With Enable, 3L: With Enable and Fast Discharge Function. The 3rd character represents the Output Voltage code. Please refer the table for Output SOT23-5L Voltage Code information. EC49513L-XXXB2G 3LVXX The XX characters represents the Date Code There are under-lines on 4th and 5th character for Green package. There are no under lines on second lines of 1st and 2nd characters for Lead Free package. EC49513A-XXXFG 3AV XX UFN-6 The 1st to 2nd character represents the VOUT Type. 3A: With Enable, 3L: With Enable and Fast Discharge Function. The 3rd character represents the Output Voltage code. Please refer the table for Output Voltage Code information. EC49513L-XXXFG 3LV The XX characters represents the Date Code XX There are under-lines on 4th and 5th character for Green package. There are no under lines on second lines of 1st and 2nd characters for Lead Free package. The 1st to 2nd character represents the VOUT Type. 3A: With Enable, 3L: With Enable and Fast Discharge Function. EC49513A-XXXT2G 3AVXX The 3rd character represents the Output Voltage code. Please refer the table for Output Voltage Code information. TSOT23-5 The XX characters represents the Date Code. st There is an under-line on 1 digit for SOT23-5 package. EC49513L-XXXT2G 3LVXX nd There is an under-line on 2 digit for TSOT25 package There are under-lines on 4th and 5th character for Green package. There are no under lines on second lines of 1st and 2nd characters for Lead Free package. E-CMOS Corp. (www.ecmos.com.tw) Page 4 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Table1 Mark code vs. Output Voltage code of Products part Part Number Mark EC49513A/L-12B2G Part Number Mark EC49513A/L-28B2G 5 EC49513A/L-12FG EC49513A/L-28FG EC49513A/L-12T2G EC49513A/L-28T2G EC49513A/L-15B2G EC49513A/L-285B2G 8 EC49513A/L-15FG EC49513A/L-15T2G EC49513A/L-285FG Part Number Mark EC49513A/L-42B2G K EC49513A/L-42FG S EC49513A/L-42T2G L EC49513A/L-285T2G EC49513A/L-18B2G EC49513A/L-30B2G A EC49513A/L-18FG EC49513A/L-18T2G EC49513A/L-30FG M EC49513A/L-30T2G EC49513A/L-25B2G EC49513A/L-33B2G G EC49513A/L-25FG EC49513A/L-25T2G EC49513A/L-33FG Q EC49513A/L-33T2G EC49513A/L-27B2G EC49513A/L-36B2G J EC49513A/L-27FG EC49513A/L-27T2G EC49513A/L-36FG V EC49513A/L-36T2G Absolute Maximum Ratings Parameter Symbol Value Units Input Voltage VIN to GND VIN 7.0 V Output Current Limit, I(LIMIT) IOUT 0.5 A Junction Temperature TJ +155 °C Thermal Resistance (SOT23-5L) ΘJA 250 °C/W Power Dissipation SOT23-5L UFN-6 PD 400 mW 500 Operating Ambient Temperature TOPR -40 to +125 °C Storage Temperature TSTG -55 to +150 °C — +260 °C Lead Temperature (Soldering, 10sec.) Note: *The power dissipation of values are based on the condition that junction temperature TJ and ambient temperature TA difference is 100℃ *Stresses beyond those listed under” absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and function operation of the device at these to any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability. * The power dissipation of UFN-6 would be 500 mW normally with the 0.5X0.5 square inches cooper area connected to the bottom pad. However, it could be up to 1000mW with larger cooper area. E-CMOS Corp. (www.ecmos.com.tw) Page 5 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Electrical Characteristics (VIN=5V, TA=25℃, unless otherwise noted.) Symbol Parameter Test Conditions Min Typ Max Unit VIN Input Voltage — 2.2 — 7.0 V VOUT Output Voltage VIN=VOUT+0.8V -1% -2% VOUT +1% +2% V Output Current (see note *1) VOUT +0.8V≦VIN≦7.0V, 2.2V≦VIN 300 — — mA IOUT=300mA,2.8V≦VIN, 25°C≦TA≦80°C — 550 650 IOUT=180mA,2.8V≦VIN — 240 280 IOUT=150mA,2.8V≦VIN — 160 180 VOUT +0.5V≦VIN≦7.0V, IOUT =1mA — 0.2 0.3 — — 0.2 VIN = VOUT +1V, 1mA≦IOUT≦100mA — 0.01 0.02 VIN =5V, EN=5V, No Load — 15 30 VIN =5V, EN=5V, IOUT =150mA, — 30 60 IMAX VDROP ∆VLINE Dropout Voltage Line Regulation VOUT+0.15V≦VIN≦5.0V,IOUT 1mA, VIN≧2.8V ∆VLOAD Load Regulation mV %/V %/mA μA IQ Ground Pin Current ISD Shutdown Current VIN = VOUT+1V, EN=0V, No Load — 0.1 1.0 μA VIH EN Pin Input Voltage “H” (See note *2, *4 ) 2.0 — — V VIL EN Pin Input Voltage “L” (See note *2 ) — — 0.3 V IEN EN Pin Leakage Current — 0.1 0.15 μA ISC Short Circuit Current — — 150 — mA IOUT =30mA, F=1KHz — 70 — IOUT =30mA, F=10KHz — 65 — PSRR Ripple Rejection Rate VIN =( VOUT+0.15V) to 5V, VEN>VIH (See note *3 ) dB eN Output Noise IOUT =100mA, F=1KHz, COUT=10μA — 40 — μV (rms) TSD Thermal Shutdown Temperature — — 150 — °C THYS Thermal Shutdown Hysteresis — — 20 — °C VEN=0V, (See note *3) — 30 100 Ω VOUT=3.3V to 0V, COUT=1μF (See note *3) — 70 100 μS RDIS TDIS Discharge Resistor Discharge Time Note: *1) Measured using a double sided board with 1”x2” square inches of copper area connected to the GND pins for “heat spreading”. *2) EN pin input voltage must be always less than or equal to input voltage. *3) It is for the EC49513L only. *4)Corp. EN Pin with internal pull high resistor is about several of KΩ for EC49513A only. Page 6 hundreds of 24 2010/10/29 E-CMOS (www.ecmos.com.tw) EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (1) Output Voltage vs. Output Current E-CMOS Corp. (www.ecmos.com.tw) Page 7 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (1) Output Voltage vs. Output Current (Continued) E-CMOS Corp. (www.ecmos.com.tw) Page 8 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (2) Dropout Voltage vs. Output Current E-CMOS Corp. (www.ecmos.com.tw) Page 9 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (3) Supply Current vs. Input Voltage E-CMOS Corp. (www.ecmos.com.tw) Page 10 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (4) Supply Current vs. Ambient Temperature E-CMOS Corp. (www.ecmos.com.tw) Page 11 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (5) Output Voltage vs. Ambient Temperature (6) Supply Current vs. Output Current E-CMOS Corp. (www.ecmos.com.tw) Page 12 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (7) Output Voltage vs. Input Voltage E-CMOS Corp. (www.ecmos.com.tw) Page 13 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (8) Input Transient Response E-CMOS Corp. (www.ecmos.com.tw) Page 14 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (8) Input Transient Response (Continued) E-CMOS Corp. (www.ecmos.com.tw) Page 15 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (9) Load Transient Response E-CMOS Corp. (www.ecmos.com.tw) Page 16 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (9) Load Transient Response (Continued) E-CMOS Corp. (www.ecmos.com.tw) Page 17 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Typical Performance Characteristics (Continued) (10) Power Supply Rejection Ratio (EC49513A/L) (11) Discharge Time vs. Output Capacitance (EC49513L only) E-CMOS Corp. (www.ecmos.com.tw) Page 18 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Simplified Application Circuit Detail Description The EC49513A/L is a low dropout linear regulator. The device provides preset 2.5V, 2.85V and 3.3V output voltages for output current up to 300mA. Other mask options for special output voltages from 1.2V to 5.0V with 100mV increment are also available. As illustrated in function block diagram, it consists of a 1.0V reference, error amplifier, a P-channel pass transistor, an ON/OFF control logic and an internal feedback voltage divider. The 1.0V band gap reference is connected to the error amplifier, which compares this reference with the feedback voltage and amplifies the voltage difference. If the feedback voltage is lower than the reference voltage, the pass-transistor gate is pulled lower, which allows more current to pass to the output pin and increases the output voltage. If the feedback voltage is too high, the pass transistor gate is pulled up to decrease the output voltage. The output voltage is feed back through an internal resistive divider connected to VOUT pin. Additional blocks include an output current limiter, thermal sensor, and shutdown logic. Internal P-Channel Pass Transistor The EC49513A/L features a P-channel MOSFET pass transistor. Unlike similar designs using PNP pass transistors, P-channel MOSFETs require no base drive, which reduces quiescent current. PNP based regulators also waste considerable current in dropout when the pass transistor saturates, and use high base-drive currents under large loads. The EC49513A/L does not suffer from these problems and consumes only 15μA (Typ.) of current consumption under heavy loads as well as in dropout conditions. Enable Function EN pin starts and stops the regulator. When the EN pin is switched to the power off level, the operation of all internal circuit stops, the build-in P-channel MOSFET output transistor between pins VIN and VOUT is switched off, allowing current consumption to be drastically reduced. The VOUT Pin enters the GND level through the internal discharge path between and GND pins. E-CMOS Corp. (www.ecmos.com.tw) Page 19 of 24 2010/10/29 VOUT EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Fast Discharge Function The EC49513L has fast discharge Function on EN pin disable. When user turns off EC49513L, its internal pull low resistor will discharge output capacitor charge. It’ll avoid other device to arise wrong motions. Output Voltage Selection The EC49513A/L output voltage is preset at an internally trimmed voltage 2.5V, 2.85V or 3.3V. The output voltage also can be mask-optioned from 1.2V to 5.0V with 100mV increment by special order. The first two digits of part number suffix identify the output voltage (see Ordering Information). For example, the EC49513A/L-33 has a preset 3.3V output voltage. Current Limit The EC49513A/L also includes a fold back current limiter. It monitors and controls the pass transistor’s gate voltage, estimates the output current, and limits the output current within 0.5A. Thermal Overload Protection Thermal overload protection limits total power dissipation of EC49513A/L. When the junction temperature exceeds TJ = +150°C, a thermal sensor turns off the pass transistor, allowing the IC to cool down. The thermal sensor turns the pass transistor on again after the junction temperature cools down by 20°C, resulting in a pulsed output during continuous thermal overload conditions. Thermal overload protection is designed to protect the EC49513A/L in the event of fault conditions. For continuous operation, the absolute maximum operating junction temperature rating of TJ = +125°C should not be exceeded. Operating Region and Power Dissipation Maximum power dissipation of the EC49513A/L depends on the thermal resistance of the case and printed circuit board, the temperature difference between the die junction and ambient air, and the rate of airflow. The power dissipation across the devices is P=IOUT x (VIN-VOUT). The resulting maximum power dissipation is PMAX = (TJ − T A ) (TJ − T A ) = θ JC + θ CA θ JA Where (TJ-TA) is the temperature difference between the EC49513A/L die junction and the surrounding air, θJC is the thermal resistance of the package chosen, and θCA is the thermal resistance through the printed circuit board, copper traces and other materials to the surrounding air. For better heat-sinking, the copper area should be equally shared between the VIN, VOUT, and GND pins. The thermal resistance θJA of SOT23-5L package of EC49513A/L is 250°C/W. based on a maximum operating junction temperature 125°C with an ambient of 25°C, the maximum power dissipation will be: PMAX = (TJ − T A ) (125 − 25) = = 0.40W θ JC + θ CA 250 Thermal characteristics were measured using a double sided board with 1”x 2” square inches of copper area connected to the GND pin for “heat spreading”. E-CMOS Corp. (www.ecmos.com.tw) Page 20 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Dropout Voltage A regulator’s minimum input output voltage differential, or dropout voltage, determines the lowest usable supply voltage. In battery powered systems, this will determine the useful end of life battery voltage. The EC49513A/L uses a P-channel MOSFET pass transistor, its dropout voltage is a function of drain-to-source on-resistance (RDS (ON)) multiplied by the load current. V DROPOUT = V IN − VOUT = R DS ( ON ) xI out E-CMOS Corp. (www.ecmos.com.tw) Page 21 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Mechanical Dimensions OUTLINE DRAWING SOT23-5L E-CMOS Corp. (www.ecmos.com.tw) Page 22 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Mechanical Dimensions OUTLINE DRAWING UFN-6L E-CMOS Corp. (www.ecmos.com.tw) Page 23 of 24 2010/10/29 EC49513A/L 300mA Linear Regulator with Enable And Fast Discharge Function Mechanical Dimensions OUTLINE DRAWING TSOT23-5 SYMBOL Dimensions in Millimeters MIN E-CMOS Corp. (www.ecmos.com.tw) Page 24 of 24 NOM MAX A - 1.00 A1 0.00 0.05 0.10 A2 0.84 0.87 0.90 A3 0.58 0.68 0.78 b 0.35 0.40 0.50 C 0.10 0.125 0.15 D 2.70 2.90 3.10 E1 1.40 1.60 1.80 e1 - 1.90(TYP) - E 2.60 2.80 3.00 e - 0.95(TYP) - θ1 1° 5° 9° L 0.37 - - L1 - 0.6REF - ∣L1-L2∣ - - 0.12 2010/10/29