300mA Low Power Low Noise LDO CMOS Voltage Regulator Description SE5509 Features The SE5509 series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low power consumption, low noise environment, and low dropout voltage. Each device contains a bandgap voltage reference, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits. The SE5509 has been designed to be used ¾ Typical 200mV Dropout Voltage at 150mA. ¾ Fast Enable Turn-On Time of 20μs (Typ.) ¾ Excellent Line and Load Regulation. ¾ High Accuracy Output Voltage of 2%. ¾ Ultra-Low Ground Current at 20μA (Typ.) ¾ Disable Current Less than 0.1μA (Typ.) ¾ Over Current and thermal Protection. ¾ No Reverse Current. ¾ Standard SOT-23-5L and TSOP-5 Package. Application with low cost capacitors and requires a minimum ¾ USB removable devices output capacitor of 1.0μF. The output voltages ¾ MPEG4 devices range from 1.3V to 4.4V in 100mV increments. ¾ Wireless LAN’s Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, ¾ Hand-Held Instrumentation. and 3.3V. ¾ Portable DVD players ¾ Digital camera Pin Configuration Ordering Information SE5509 _ __ Pin (1=>5): G: VIN/GND/EN/BYPASS/VOUT Package: L: SOT-23-5L / TSOP-5 Block Diagram Output Voltage: A: VOUT = 3.3V B: VOUT = 2.8V C: VOUT = 2.5V D: VOUT = 1.8V E: VOUT = 1.5V F: VOUT = 3.0V Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 1 300mA Low Power Low Noise LDO CMOS Voltage Regulator SE5509 Ordering/Marking Information Package Ordering Information SOT-23-5L / TSOP-5 (Top View) VIN 1 GND 2 ENABLE 3 5 4 VOUT BYPASS Marking Information Starting with 9, a bar on top of 9 is for production 3.3V SE5509ALG-LF 509Alz 2.8V SE5509BLG-LF 509BLz 2.5V SE5509CLG-LF 509CLz characters for later years. 1.8V SE5509DLG-LF 509DLz The last character is the week code. (A-Z: 1.5V SE5509ELG-LF 509ELz 3.0V SE5509FLG-LF 509FLz year 2005, and underlined 9 is for year 2006. The naming pattern continues with consecutive 1-26, a-z: 27-52) A dot on top right corner is for lead-free process. LF: lead free. Absolute Maximum Rating (1) Parameter Symbol Value Units Input Voltage VIN 6 V Enable Voltage VEN -0.3 to VIN V Output Voltage VOUT -0.3 to 4.6 Power Dissipation PD V Internally Limited Output Short Circuit Duration (3) Infinite Thermal Resistance, Junction-to-Ambient ΘJA Lead Temperature (Soldering, 5 sec.) 230 °C/W 260 °C Junction Temperature TJ 0 to +150 °C Storage Temperature TS -40 to +150 °C Operating Rating (2) Parameter Symbol Value Units Supply Input Voltage Range VIN 5.5 V Junction Temperature Range TJ 0 to +125 °C Electrical Characteristics VIN = 5V; VEN=VIN; CIN = 2.2μF; COUT = 2.2μF; IOUT = 10mA; TJ = 25°C; unless otherwise noted Symbol VOUT Parameter Conditions Min Typ Max Unit Output Voltage SE5509 – 1.5 (VIN=1.8V) SE5509 – 1.8 (VIN=3.3V) SE5509 – 2.5 SE5509 – 2.8 SE5509 – 3.0 1.5 1.8 2.5 2.8 3.0 3.3 1.530 1.836 2.550 2.856 3.060 3.366 V SE5509 – 3.3 1.470 1.764 2.450 2.744 2.940 3.234 Accuracy ΔVOUT Line Regulation VIN = (VOUT + 0.8)V to 5.5V -- 0.2 -- %/V ΔVOUT Load Regulation (5) VIN = (VOUT + 0.8)V or 2.5V IOUT = 10mA to 300mA -- 2.0 -- % Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 2 300mA Low Power Low Noise LDO CMOS Voltage Regulator SE5509 Electrical Characteristics (Continued) VIN = 5V; CIN = 2.2μF; COUT = 2.2μF; IOUT = 10mA; TJ = 25°C; unless otherwise noted Symbol Parameter Conditions Min Typ Max Unit Note 4 -- 0.1 -- mV/°C IOUT = 10mA -- 8 -- IOUT = 150mA -- 200 -- IOUT = 300mA -- 350 -- Thermal Protection Temperature -- 150 -- Protection Hysterisys -- 20 -- f =10kHz,IOUT=50mA,Cbypass=0.1μF -- 70 -- VEN = 0.4V -- 0.1 -- VEN = VIN -- 20 -- Enable Input Voltage Raising, Output Turns On, Logic High 1.6 -- -- Threshold Voltage Voltage Falling, Output Turns Off, Logic Low -- -- 0.4 -- 600 -- Output Voltage ΔVOUT/ΔT Temperature Coefficient VIN – VOUT Dropout Voltage (6) (VOUT>3.0V) TPROTECTION Thermal Protection PSRR Ripple Rejection IQ Quiescent Current VTH(EN) ILIMIT Current Limit mV °C dB μA V mA Note 1: Exceeding the absolute maximum rating may damage the device. Note 2: The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) = (TJ(MAX) – TA)/ΘJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See “Thermal Consideration” section for details Note 4: Output voltage temperature coefficient is 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 0.1mA to 300mA. 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 100mV below its nominal value measured at 0.8V differential. Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 3 300mA Low Power Low Noise LDO CMOS Voltage Regulator Load Regulation (VIN=4.3V) 3.40 3.40 3.35 3.35 VOUT (V) VOUT (V) Line Regulation (IOUT=10mA) 3.30 3.25 3.30 3.25 3.20 3.20 3.15 3.60 3.15 4.10 VIN (V) 4.60 0 5.10 IQ VS. IOUT(VOUT=3.3V) 100 200 IOUT (mA) 400 27.5 30 27.0 IQ (μA) 28 26 24 26.5 26.0 25.5 22 25.0 20 0 50 100 150 200 IOUT (mA) 250 300 3.6 350 4.0 4.4 4.8 VIN (V) 5.2 Load Transient Response (VOUT = 3.3V) Input Transient Response (VOUT = 3.3V) (IOUT=10mA to 300mA) (VIN=3.6V to 5.0V) PSRR (VIN=VOUT+1V+0.5Vp-pAC，IOUT=50mA，Cbypass=0.1μF) PSRR (dB) 300 IQ VS. VIN(VOUT=3.3V) 32 IQ (μA) SE5509 80 70 60 50 40 30 20 10 0 0.1 1 10 Frequency (kHz) 100 Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 4 5.6 300mA Low Power Low Noise LDO CMOS Voltage Regulator SE5509 Application Hints Thermal Considerations Like any low dropout regulator, SE5509 requires It is important that the thermal limit of the package is external capacitors to ensure stability. not exceeded. The The SE5509 has built-in thermal external capacitors must be carefully selected to protection. ensure performance. the IC will enter protection, and VOUT will be pulled Input Capacitor An input capacitor of at least 1μF is required. Ceramic or Tantalum can be used. The value can be increase without upper limit. to ground. When the thermal limit is exceeded, The power dissipation for a given application can be calculated as following: The power dissipation (PD) is PD = IOUT * [VIN – VOUT] Output Capacitor An output capacitor is required for stability. It must The thermal limit of the package is then limited to be placed no more than 1 cm away from the VOUT PD(MAX) = [TJ – TA]/ΘJA where TJ is the junction pin, and connected directly between VOUT and GND temperature, TA is the ambient temperature, and pins. Electrolytical capacitor is recommended. The ΘJA is around 230°C/W for SE5509. minimum value is 1μF but may be increase without designed to enter thermal protection at 150°C. For limit. Ceramic can be used. But the value should not example, if TA is 25°C then the maximum PD is be more than 2.2μF. limited to about 0.6W. In other words, if IOUT(MAX) = SE5509 is 300mA, then [VIN – VOUT] cannot exceed 2V. Application Diagram Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 5 300mA Low Power Low Noise LDO CMOS Voltage Regulator SE5509 OUTLINE DRAWING SOT-23-5L DIMENSIONS INCHES MM MIN MAX MIN MAX K B DIMN H D A A B C D E F H J K F E C J 0.110 0.059 0.036 0.014 0.0035 0.102 0.120 0.070 0.051 0.020 0.037 0.075 0.006 0.008 0.118 2.80 1.50 0.90 0.35 0.090 2.60 3.05 1.75 1.30 0.50 0.95 1.90 0.15 0.20 3.00 OUTLINE DRAWING TSOP-5 K B H D A F E C J N DIM A B C D E F H J K DIMENSIONS INCHES MM MIN MAX MIN MAX 0.110 0.059 0.036 0.014 0.0035 0.102 0.120 2.80 0.070 1.50 0.040 0.90 0.020 0.35 0.037 0.075 0.006 0.008 0.090 0.118 2.60 Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 6 3.05 1.75 1.00 0.50 0.95 1.90 0.15 0.20 3.00 300mA Low Power Low Noise LDO CMOS Voltage Regulator Customer Support Seaward Electronics Incorporated – China Section B, 2nd Floor, ShangDi Scientific Office Complex, #22 XinXi Road Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Seaward Electronics Corporation – Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Seaward Electronics Incorporated – North America 1512 Centre Pointe Dr. Milpitas, CA95035, USA Tel: 1-408-821-6600 Last Updated - 12/5/2008 Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 7 SE5509