SPX5205M5-L-2-5/TR

SPX5205 150mA, Low-Noise LDO Voltage Regulator Description FEATURES ■■ Low Noise Output LDO: 40μVRMS Possible ■■ 1% Initial Accuracy ■■ Very Low Quiecent Current: 70μA ■■ Low Dropout Voltage (210mV at 150mA) ■■ Current and Thermal Limiting ■■ Reverse-Battery Protection ■■ Wide Range of Fixed Output Voltages: 1.8V, 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 LP2985 The SPX5205 is a positive voltage regulator with very low dropout voltage, output noise and ground current (750μA at 100mA). VOUT has a tolerance of less than 1% and is temperature compensated. Fixed output voltages 1.8V, 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. Top View Top View V OUT V OUT BYP 5 4 5 3 1 2 APPLICATIONS ■■ PDA ■■ Battery Powered Systems ■■ Cellular Phone ■■ Cordless Telephones ■■ Radio Control Systems ■■ Laptop, Palmtop and Notebook Computers ■■ Portable Consumer Equipment ■■ Portable Instrumentation ■■ Bar Code Scanners ■■ SMPS Post-Regulator 4 SPX5205 SPX5205 1 ADJ 2 3 V IN GND EN V IN GND EN Fixed Output Voltage Adjustable Output Voltage Ordering Information - Back Page Typical Applications Circuit V IN 1 2 + GND + 1.0 µF SPX5205 3 EN VOUT 5 4 5-pin Fixed BYP ENABLE may be tied directly to VIN TOP View REV L 1/8 SPX5205 Absolute Maximum Ratings Recommended Operating Conditions These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Input Supply Voltage..................................... +2.5V to +16V Operating Junction Temperature Range.....-40˚C to +125˚C Enable Input Voltage..............................................0V to VIN SOT-23-5 (ѳJA)................................................... See Note 1 Thermal Shutdown..................................... Internally limited Lead Temperature (Soldering, 5 seconds)..................260˚C Input Supply Voltage....................................... -20V to +20V Enable Input Voltage....................................... -20V to +20V Electrical Characteristics TJ = 25°C, VIN = VOUT + 1V, IL = 100μA, CL = 1μF, and VENABLE ≥ 2.4V. The “•” denotes the specifications which apply over full junction temperature range -40°C to +125°C, unless otherwise specified. PARAMETER Output voltage tolerance (VOUT) Output voltage temperature coefficient MIN. TYP. MAX. -1 +1 -2 +2 57 0.03 0.1 Load regulation %VNOM ppm/°C %/V 50 190 250 275 350 Quiescent current (IGND) 0.05 1 5 70 125 150 350 Ground pin current (IGND) 600 800 750 1000 1500 1300 VIN = VEN = VOUT + 1 ≤ 8V VIN = VOUT + 1 ≥ 2.5V 300 210 • 0.2 230 180 • VIN = VEN = VOUT + 1 to 16V TA = 25°C to 85°C 70 Dropout voltage(2) (VIN - VO) • VIN = VOUT + 1 to 16V and VEN ≤ 6V % 1.0 140 CONDITIONS 0.2 0.5 30 • 0.1 0.2 Line regulation UNITS 1900 2500 REV L mV mV mV mV µA µA µA µA µA • IL= 1mA to 150mA • IL= 100µA to 1mA • • • • IL= 100µA IL= 50mA IL= 100mA IL= 150mA VENABLE ≤ 0.4V • • • • • VENABLE ≤ 0.25V IL= 100µA IL= 50mA IL= 100mA IL= 150mA 2/8 SPX5205 Electrical Characteristics (Continued) TJ = 25°C, VIN = VOUT + 1V, IL = 100μA, CL = 1μF, and VENABLE ≥ 2.4V. The “•” denotes the specifications which apply over full junction temperature range -40°C to +125°C, unless otherwise specified. PARAMETER MIN. TYP. Ripple rejection 70 Current limit (ILIMIT) 360 MAX. UNITS 500 Output noise (eNO) mA µVRMS 40 Input voltage level logic high (VIL) Enable input current CONDITIONS dB 300 Input voltage level logic low (VIL) • 0.4 2.0 0.01 2 3 20 VOUT = 0V IL = 10mA, CL = 1µF, CIN = 1µF (10Hz - 100kHz) IL = 10mA, CL = 10µF, CBYP = 1µF, CIN = 1µF (10Hz - 100kHz) V OFF V ON µA VIL ≤ 0.4V VIH ≥ 2.0V 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 ѳJA, and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is given: PD(max) = (TJ(max) - TA) / ѳJA, exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal shutdown. The ѳJA of the SPX5205 is 220°C/W mounted on a PC board. 2. Not applicable to output voltages of less than 2V. REV L 3/8 SPX5205 Typical Performance Characteristics 110 1.40 90 80 I GND (µA) 1.00 I GND (mA) 100 3.3V Device V IN = 3.2V CL = 1.0μF 1.20 0.80 0.60 70 60 0.40 50 0.20 40 0.00 30 0 50 100 150 V O = 3.3V CL = 1.0µF I L = 100μA 4 6 8 12 14 16 V IN (V) I L (mA) Figure 1. Ground Current vs. Load Current Figure 2. Ground Current vs. Input Voltage 3.340 2.00 3.335 3.3V Device V IN = 4.3V CL = 1.0µF 3.330 V OUT (V) 1.50 I GND (mA) 10 1.00 3.325 3.320 3.315 3.310 3.305 0.50 3.3V Device CL = 1.0μF I L = 100μA 3.300 3.295 3.290 0.00 0 50 100 4 150 6 8 10 12 14 16 V IN (V) I L (mA) Figure 3. Ground Current vs. Load Current in Dropout Figure 4. Output Voltage vs. Input Voltage 3.310 V O=3.3V V IN = 3.2V CL = 1.0µF 3.3V Device V IN = 4.3V CL = 1.0µF 3.308 150 V OUT (V) Dropout (mV) 200 100 50 3.306 3.304 3.302 3.300 0 0 50 100 150 0 50 100 150 I L (mA) I L (mA) Figure 5. Dropout Voltage vs. Load Current Figure 6. Output Voltage vs. Load Current REV L 4/8 SPX5205 Typical Performance Characteristics (Continued) 950 90.0 V OUT= 3.3V V IN = 4.3V CL = 1.0μF I L = 100μA 850 750 I GND (μA) I GND (mA) 80.0 70.0 650 60.0 V OUT = 3.3V V IN = 4.3V CL = 1.0μF I L = 100mA 550 50.0 -40 -20 0 20 40 60 450 -40 80 100 120 -20 Temperature (°C) 40 60 80 100 120 Figure 8. Ground Current vs. Temperature at ILOAD = 100mA 3.400 2.30 2.20 3.360 3.340 3.320 V OUT (V) 2.00 1.90 1.80 3.300 2.280 1.70 2.260 1.60 2.240 1.50 2.220 1.40 -40 -20 0 20 40 60 V OUT= 3.3V V IN = 4.3V CL = 1.0μF 3.380 V OUT= 3.3V V IN = 4.3V CL = 1.0μF I L = 150mA 2.10 I GND (mA) 20 Temperature (°C) Figure 7. Ground Current vs. Temperature at ILOAD = 100μA 2.200 -40 80 100 120 -20 0 20 40 60 80 100 120 Temperature (°C) Temperature (°C) Figure 10. Output Voltage vs. Temperature Figure 9. Ground Current in Dropout vs. Temperature 1.60 350 V OUT =3.3V CL = 1.0μF I L = 100μA 1.50 1.40 Cin = 1uFT, Cout = 1uFT Cin = 1uFT, Cout = 2.2uFT Cin = 1uFT Cout = 10uFT 300 250 1.30 uV RMS V EN, On Threshold (V) 0 1.20 1.10 200 150 1.00 100 0.90 50 0.80 4 6 8 10 12 14 0 16 V IN (V) 1 10 100 1000 10000 Bypass Cap (pF) 100000 1000000 Figure 12. Output Noise vs. Bypass Capacitor Value Figure 11. ENABLE Voltage, ON Threshold vs. Input Voltage REV L 5/8 SPX5205 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. Typical Applications Circuits A 10nF capacitor on the 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 proportional 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. 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 2.2μF aluminum electrolytic capacitor works in most application circuits, but the same stability often can be obtained with a 1μF tantalum electrolytic. The SPX5205’s internal reference is available through the BYP pin. 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. 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 13 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 kΩ, and for best results, R2 should be between 22 kΩ and 47kΩ. VIN 1 2 + GND R1 Hi-ON Lo-OFF + SPX5205 3 EN VOUT 5 4 ADJ 5-pin Adjustable TOPVi ew R2 Figure 13. Typical Adjustable Output Voltage REV L 6/8 SPX5205 Mechanical Dimensions SOT-23-5 FOR REFERENCE ONLY REV L 7/8 SPX5205 Ordering Information(1) Part Number Operating Temperature Range Lead-Free Package Packaging Method Accuracy SPX5205M5-L/TR Adjustable SPX5205M5-L-1-8/TR SPX5205M5-L-3-0/TR Output Voltage 1.8V -40°C ≤ TJ ≤ 125°C Yes(2) 5-pin SOT-23 Tape and Reel 1% 3.0V SPX5205M5-L-3-3/TR 3.3V SPX5205M5-L-5-0/TR 5.0V NOTE: 1. Refer to www.exar.com/SPX5205 for most up-to-date Ordering Information. 2. Visit www.exar.com for additional information on Environmental Rating. Revision History Revision Date K -- L 8/31/18 Corporate Headquarters: 5966 La Place Court Suite 100 Carlsbad, CA 92008 Tel.:+1 (760) 692-0711 Fax: +1 (760) 444-8598 www.maxlinear.com Description Sipex / Exar legacy datasheet Update to MaxLinear logo. Update format and Ordering Information. Added Figure numbers. Corrected CL unit in Figure 11. Updated Typical Application Circuit on page 1 and Figure 13 to differentiate between fixed and adjustable versions. Updated last paragraph of Typical Applications Circuits section. Updated temperature at top of Electrical Characteristics. High Performance Analog: 1060 Rincon Circle San Jose, CA 95131 Tel.: +1 (669) 265-6100 Fax: +1 (669) 265-6101 www.exar.com The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. 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MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated. © 2001 - 2018 MaxLinear, Inc. All rights reserved SPX5205_DS_083118 REV L 8/8