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| (R) SPX5205 150mA, Low-Noise LDO Voltage Regulator FEATURES Low Noise Output LDO: 40VRMS Possible 1% Initial Accuracy Very Low Quiecent Current: 70A Low Dropout Voltage (210mV at 150mA) Current and Thermal Limiting Reverse-Battery Protection Wide Range of Fix Output Voltages:1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V and 5.0V Zero Off-Mode Current Small 5-Pin SOT-23 Pin Compatible to MIC5205/MAX8877 (fixed Options Only) and AS3815 Fixed Output Voltage VOUT BYP 5 4 SPX5205 5 Pin SOT-23 1 VIN 2 GND 3 EN Adjustable Output Voltage VOUT ADJ/BYP 5 4 SPX5205 5 Pin SOT-23 1 VIN APPLICATIONS PDA Battery Powered Systems Cellular Phone Cordless Telephones Radio Control Systems Laptop, Palmtop, and Notebook Computers 2 GND 3 EN Now Available in Lead Free Packaging Portable Consumer Equipment Portable Instrumentation Bar Code Scanners SMPS Post-Regulator DESCRIPTION The SPX5205 is a positive voltage regulator with very low dropout voltage, output noise and ground current (750A at 100mA). VOUT has a tolerance of less than 1% and is temperature compensated. Fixed output voltages 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V, and 5.0V and an adjustable version are available in a small 5-pin SOT-23 package. Other key features include zero off-mode current, reverse battery protection, thermal shutdown and current limit. The SPX5205 is an excellent choice for use in batterypowered applications, and where power conservation is desired such as: cellular/ cordless telephones, radio control systems, and portable computers. TYPICAL APPLICATION CIRCUIT VIN 1 5 VOUT 2 + GND 3 EN ENABLE may be tied directly to VIN SPX5205 + 1.0F 4 BYP (Optn) TOP View Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Thermal Shutdown .................................................................... Internally Limited Lead Temperature (Soldering, 5 seconds) ................................................. 260C Operating Junction Temperature Range .................................... -40C to +125C Input Supply Voltage ......................................... -20V to +20V Enable Input Voltage ......................................... -20V to +20V RECOMMENDED OPERATING CONDITIONS Input voltage ..................................................................................... +2.5V to 16V Operating Junction Temperature Range .................................... -40C to +125C Enable Input Voltage .............................................................................. 0V to VIN SOT-23-5 (JA) ................................................................................... See Note 1 ELECTRICAL CHARACTERISTICS TJ=25C, VIN = VOUT + 1V, IL = 100A, CL = 1F, and VENABLE 2.4V. The denotes the specifications which apply over full temperature range -40C to +85C, unless otherwise specified. PARAMETER Output Voltage Tolerance (VOUT) Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage (See Note 2) (VIN - VO) MIN -1 -2 TYP MAX +1 +2 UNITS %VNOM ppm/C %/V % mV mV mV mV A A IL = 50mA IL = 100mA IL = 150mA dB mA VRMS VRMS 0.4 2.0 0.01 3 2 20 A V VOUT = 0V IL = 10mA, CL = 1F, CIN= 1F (10Hz - 100kHz.) IL = 10mA, CL = 10F, CBYP = 1F,CIN=1F,(10Hz - 100kHz) OFF ON VIL 0.4V VIH 2.0V VENABLE 0.4V VENABLE 0.25V IL = 100A IL = 150mA IL = 100mA IL = 50mA IL = 100A VIN = VOUT + 1V to 16V IL = 0.1mA to 150mA CONDITIONS Quiescent Current (IGND) Ground Pin Current (IGND) Ripple Rejection (PSRR) Current Limit (ILIMIT) Output Noise (eNO) 0.1 0.2 0.1 0.2 0.5 30 50 70 140 190 230 180 250 300 210 275 350 0.05 1 5 70 125 150 350 600 800 750 1000 1500 1300 1900 2500 70 360 500 300 40 57 0.03 Input Voltage Level Logic Low (VIL) Input Voltage Level Logic High (VIL) ENABLE Input Current Note 1: The maximum allowable power dissipation is a function of maximum operating junction temperature, TJ (max), the junction to ambient thermal resistance, and the ambient, JA, and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is given: PD (max) = (TJ (max) - TA)/JA, exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal shutdown. The JA of the SPX5205 is 220C/W mounted on a PC board. Note 2: Not applicable to output voltages of less than 2V. Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 2 TYPICAL PERFORMANCE CHARACTERISTICS 1.40 1.20 1.00 3.3V Device VIN= 3.2V CL = 1.0F 110 100 90 IGND (mA) 0.80 0.60 0.40 0.20 0.00 0 50 100 150 IGND (A) 80 70 60 50 40 30 4 6 8 10 VO = 3.3V CL = 1.0F IL = 100A 12 14 16 IL (mA) Ground Current vs Load Current VIN (V) Ground Current vs Input Voltage 2.00 3.3V Device VIN= 4.3V CL = 1.0F 3.340 3.335 3.330 1.50 IGND (mA) VOUT (V) 3.325 3.320 3.315 3.310 3.305 3.3V Device CL= 1.0F IL = 100A 1.00 0.50 3.300 3.295 3.290 0.00 0 50 100 150 4 6 8 10 12 14 16 IL (mA) Ground Current vs Load Current in Dropout VIN (V) Output Voltage vs Input Voltage Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 3 TYPICAL PERFORMANCE CHARACTERISTICS 3.310 200 VO=3.3V VIN= 3.2V CL = 1.0F 3.308 3.3V Device VIN= 4.3V CL = 1.0F Dropout (mV) 150 VOUT (V) 3.306 100 3.304 50 3.302 0 0 50 100 150 3.300 0 50 100 150 IL (mA) Dropout Voltage vs Load Current IL (mA) Output Voltage vs Load Current 90.0 VOUT= 3.3V VIN= 4.3V CL= 1.0F IL = 100A 950 80.0 850 IGND (A) 70.0 IGND (A) 750 650 VOUT = 3.3V VIN = 4.3V CL= 1.0F IL = 100mA -20 0 20 40 60 80 100 120 60.0 550 50.0 -40 -20 0 20 40 60 80 100 120 450 -40 Temperature (C) Ground Current vs Temperature at ILOAD =100A Temperature (C) Ground Current vs Temperature at ILOAD =100mA Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 4 TYPICAL PERFORMANCE CHARACTERISTICS 2.30 2.20 2.10 VOUT= 3.3V VIN= 4.3V CL= 1.0F IL = 150mA 3.400 3.380 3.360 3.340 VOUT= 3.3V VIN= 4.3V CL= 1.0F IGND (mA) 2.00 1.90 1.80 1.70 1.60 1.50 1.40 -40 -20 0 20 40 VOUT (V) 60 80 100 120 3.320 3.300 3.280 3.260 3.240 3.220 3.200 -40 -20 0 20 40 60 80 100 120 Temperature (C) Ground Current in Dropout vs Temperature Temperature (C) Output Voltage vs Temperature 1.60 1.50 VOUT =3.3V CL= 1.0A IL = 100A 350 Cin = 1uFT, Cout = 1uFT Cin = 1uFT, Cout = 2.2uFT Cin = 1uFT Cout = 10uFT VEN, On Threshold (V) 300 250 200 1.40 1.30 1.20 1.10 uV RMS 150 100 1.00 0.90 0.80 4 6 8 10 12 14 16 50 0 1 10 100 1000 10000 Bypass Cap (pF) 100000 1000000 VIN (V) ENABLE Voltage, ON threshold vs Input Voltage Output Noise vs. Bypass Capacitor Value Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 5 APPLICATION INFORMATION The SPX5205 requires an output capacitor for device stability. Its value depends upon the application circuit. In general, linear regulator stability decreases with higher output currents. In applications where the SPX5205 is putting out less current, a lower output capacitance may be sufficient. For example, a regulator sourcing only 10mA, requires approximately half the capacitance as the same regulator sourcing 150mA. Bench testing is the best method for determining the proper type and value of the capacitor since the high frequency characteristics of electrolytic capacitors vary widely, depending on type and manufacturer. A high quality 2.2F aluminum electrolytic capacitor works in most application circuits, but the same stability often can be obtained with a 1F tantalum electrolytic. With the SPX5205 adjustable version, the minimum value of output capacitance is a function of the output voltage. The value decreases with higher output voltages, since closed loop gain is increased. Typical Applications Circuits portional to the size of the BYP capacitor. Applications requiring a slow ramp-up of the output voltage should use a larger CBYP. However, if a rapid turn-on is necessary, the BYP capacitor can be omitted. The SPX5205's internal reference is available through the BYP pin. The Typical Application Circuit shown on page 1 represents a SPX5205 standard application circuit. The EN (enable) pin is pulled high (>2.0V) to enable the regulator. To disable the regulator, EN < 0.4V. The SPX5205 in Figure 1 illustrates a typical adjustable output voltage configuration. Two resistors (R1 and R2) set the output voltage. The output voltage is calculated using the formula: VOUT = 1.235V x ( 1 + R1/R2) R2 must be > 10 k and for best results, R2 should be between 22 k and 47k. A capacitor placed between adjustable and ground will provide improved noise performance. A 10nF capacitor on BYP pin will significantly reduce output noise but it may be left unconnected if the output noise is not a major concern. The SPX5205 start-up speed is inversely pro- VIN 1 5 VOUT 2 + GND 3 EN Hi-ON Lo-OFF BYP (Optn) SPX5205 R1 + 4 ADJ R2 TOP View Figure 1. Typical Adjustable Output Voltage. Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 6 PACKAGE: 5 PIN SOT-23 D e1 N N/2 +1 E/2 E1/2 B E1 E B SEE VIEW C VIEW A-A 1 e O b Gauge Plane L Seating Plane O L1 L O 2 N/2 5 Pin SOT-23 JEDEC MO-178 (AA) Variation MIN NOM MAX SYMBOL A 1.45 A1 0 0.15 A2 0.9 1.15 1.3 b 0.3 0.5 c 0.08 0.22 D 2.90 BSC E 2.80 BSC E1 1.60 BSC e 0.95 BSC e1 1.90 BSC L 0.3 0.45 0.6 L1 0.60 REF L2 0.25 BSC O 0 4 8 o 5 10 15 Note: Dimensions in (mm) VIEW C A A2 Seating Plane A1 SIDE VIEW b WITH PLATING c BASE METAL SECTION B-B Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 7 ORDERING INFORMATION PART NUMBER TOP MARK ACC. OUTPUT VOLTAGE PACKAGE SPX5205M5 .............. H1WW ................. 1% ...................... Adj ................... 5 Pin SOT-23 SPX5205M5/TR ........ H1WW ................. 1% ...................... Adj ................... 5 Pin SOT-23 SPX5205M5-1.2 .......... R12 ................... 1% ..................... 1.2V .................. 5 Pin SOT-23 SPX5205M5-1.2/TR ..... R12 ................... 1% ..................... 1.2V .................. 5 Pin SOT-23 SPX5205M5-1.5 .......... R15 ................... 1% ..................... 1.5V .................. 5 Pin SOT-23 SPX5205M5-1.5/TR ..... R15 ................... 1% ..................... 1.5V .................. 5 Pin SOT-23 SPX5205M5-1.8 .......... R18 ................... 1% ..................... 1.8V .................. 5 Pin SOT-23 SPX5205M5-1.8/TR ..... R18 ................... 1% ..................... 1.8V .................. 5 Pin SOT-23 SPX5205M5-2.0 .......... R20 ................... 1% ..................... 2.0V .................. 5 Pin SOT-23 SPX5205M5-2.0/TR ..... R20 ................... 1% ..................... 2.0V .................. 5 Pin SOT-23 SPX5205M5-2.5 .......... R25 ................... 1% ..................... 2.5V .................. 5 Pin SOT-23 SPX5205M5-2.5/TR ..... R25 ................... 1% ..................... 2.5V .................. 5 Pin SOT-23 SPX5205M5-2.8 .......... R28 ................... 1%......................2.8V...................5 Pin SOT-23 SPX5205M5-2.8/TR ..... R28 ................... 1%......................2.8V...................5 Pin SOT-23 SPX5205M5-3.0............R30.....................1% .....................3.0V...................5 PIN SOT-23 SPX5205M5-3.0/TR......R30.....................1% .....................3.0V...................5 PIN SOT-23 SPX5205M5-3.3 .......... R33 ................... 1% ..................... 3.3V .................. 5 Pin SOT-23 SPX5205M5-3.3/TR ..... R33 ................... 1% ..................... 3.3V .................. 5 Pin SOT-23 SPX5205M5-5.0 .......... R50 ................... 1% ..................... 5.0V .................. 5 Pin SOT-23 SPX5205M5-5.0/TR ..... R50 ................... 1% ..................... 5.0V .................. 5 Pin SOT-23 Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX5205M5-5.0/TR = standard; SPX5205M5-5.0-L/TR = lead free Note that for top markings on small packages, when the bar is added to indicate lead-free parts, it can be mistaken as a "1" or an "I". /TR = Tape and Reel Pack quantity is 2,500 for 5pin SOT-23 Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Date:12/18/04 SPX5205 150mA, Low Noise LDO Voltage Regulator (c) Copyright 2004 Sipex Corporation 8 |
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