LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 150-mA LOW-NOISE LOW-DROPOUT REGULATOR WITH SHUTDOWN FEATURES PORTABLE APPLICATIONS • • • • • • • 1 • • • • • • • • • Output Tolerance of – 1% (A Grade) – 1.5% (Standard Grade) Ultra-Low Dropout, Typically – 280 mV at Full Load of 150 mA – 7 mV at 1 mA Wide VIN Range: 16 V Max Low IQ: 850 µA at Full Load at 150 mA Shutdown Current: 0.01 µA Typ Low Noise: 30 µVRMS With 10-nF Bypass Capacitor Stable With Low-ESR Capacitors, Including Ceramic Overcurrent and Thermal Protection High Peak-Current Capability ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) Cellular Phones Palmtop and Laptop Computers Personal Digital Assistants (PDAs) Digital Cameras and Camcorders CD Players MP3 Players DBV (SOT-23) PACKAGE (TOP VIEW) VIN GND ON/OFF 1 5 VOUT 4 BYPASS 2 3 DESCRIPTION/ORDERING INFORMATION The LP2985 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for both portable and nonportable applications. Available in voltages of 1.8 V, 2.5 V, 2.8 V, 2.9 V, 3 V, 3.1 V, 3.3 V, 5 V, and 10 V, the family has an output tolerance of 1% for the A version (1.5% for the non-A version) and is capable of delivering 150-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included. The LP2985 has a host of features that makes the regulator an ideal candidate for a variety of portable applications: • Low dropout: A PNP pass element allows a typical dropout of 280 mV at 150-mA load current and 7 mV at 1-mA load. • Low quiescent current: The use of a vertical PNP process allows for quiescent currents that are considerably lower than those associated with traditional lateral PNP regulators. • Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01 µA when the ON/OFF pin is pulled low. • Low-ESR-capacitor friendly: The regulator is stable with low-ESR capacitors, allowing the use of small, inexpensive, ceramic capacitors in cost-sensitive applications. • Low noise: A BYPASS pin allows for low-noise operation, with a typical output noise of 30 µVRMS, with the use of a 10-nF bypass capacitor. • Small packaging: For the most space-constrained needs, the regulator is available in the SOT-23 package. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2004–2009, Texas Instruments Incorporated LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com ORDERING INFORMATION (1) TJ PART GRADE VOUT (NOM) PACKAGE (2) 1.8 V 2.5 V 2.8 V 2.9 V A grade: 1% tolerance 3.0 V 3.1 V 3.3 V 5.0 V 10.0 V –40°C to 125°C SOT-23-5 – DBV 1.8 V 2.5 V 2.8 V 2.9 V Standard grade: 1.5% tolerance 3.0 V 3.1 V 3.3 V 5.0 V 10. 0 V (1) (2) (3) 2 ORDERABLE PART NUMBER Reel of 3000 LP2985A-18DBVR Reel of 250 LP2985A-18DBVT Reel of 3000 LP2985A-25DBVR Reel of 250 LP2985A-25DBVT Reel of 3000 LP2985A-28DBVR Reel of 250 LP2985A-28DBVT Reel of 3000 LP2985A-29DBVR Reel of 250 LP2985A-29DBVT Reel of 3000 LP2985A-30DBVR Reel of 250 LP2985A-30DBVT Reel of 3000 LP2985A-31DBVR Reel of 250 LP2985A-31DBVT Reel of 3000 LP2985A-33DBVR Reel of 250 LP2985A-33DBVT Reel of 3000 LP2985A-50DBVR Reel of 250 LP2985A-50DBVT Reel of 3000 LP2985A-10DBVR Reel of 250 LP2985A-10DBVT Reel of 3000 LP2985-18DBVR Reel of 250 LP2985-18DBVT Reel of 3000 LP2985-25DBVR Reel of 250 LP2985-25DBVT Reel of 3000 LP2985-28DBVR Reel of 250 LP2985-28DBVT Reel of 3000 LP2985-29DBVR Reel of 250 LP2985-29DBVT Reel of 3000 LP2985-30DBVR Reel of 250 LP2985-30DBVT Reel of 3000 LP2985-31DBVR Reel of 250 LP2985-31DBVT Reel of 3000 LP2985-33DBVR Reel of 250 LP2985-33DBVT Reel of 3000 LP2985-50DBVR Reel of 250 LP2985-50DBVT Reel of 3000 LP2985-10DBVR Reel of 250 LP2985-10DBVT TOP-SIDE MARKING (3) LPT_ LPU_ LPJ_ LPZ_ LRA_ PREVIEW LPK_ LRI_ LRD_ LPH_ LPL_ LPG_ LPM_ LPN_ PREVIEW LPF_ LPS_ LRC_ For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. The actual top-side marking has one additional character that designates the wafer fab/assembly site. Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 FUNCTIONAL BLOCK DIAGRAM VIN ON/OFF 1.23 V VREF − + BYPASS VOUT Overcurrent/ Overtemperature Protection BASIC APPLICATION CIRCUIT LP2985 VIN 1 VOUT 5 2.2 µF (see Note A) 1 µF (see Note A) GND 2 ON/OFF (see Note B) 3 4 BYPASS 10 nF (see Note C) A. Minimum COUT value for stability (can be increased without limit for improved stability and transient response) B. ON/OFF must be actively terminated. Connect to VIN if shutdown feature is not used. C. Optional BYPASS capacitor for low-noise operation Copyright © 2004–2009, Texas Instruments Incorporated Submit Documentation Feedback 3 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com Absolute Maximum Ratings (1) over virtual junction temperature range (unless otherwise noted) MIN MAX VIN Continuous input voltage range (2) –0.3 16 V VON/OFF ON/OFF input voltage range –0.3 16 V –0.3 9 V Output voltage range (3) UNIT Internally limited (short-circuit protected) (4) IO Output current θJA Package thermal impedance (4) (5) 206 °C/W TJ Operating virtual junction temperature 150 °C Tstg Storage temperature range 150 °C ESD (1) (2) (3) (4) (5) Electrostatic discharge protection –65 Human-Body Model (HBM) 2000 Machine Model (MM) 200 V Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or 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 PNP pass transistor has a parasitic diode connected between the input and output. This diode normally is reverse biased (VIN > VOUT), but will be forward biased if the output voltage exceeds the input voltage by a diode drop (see Application Information for more details). If load is returned to a negative power supply in a dual-supply system, the output must be diode clamped to GND. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. Recommended Operating Conditions VIN Supply input voltage VON/OFF ON/OFF input voltage IOUT Output current TJ Virtual junction temperature (1) 4 MIN MAX 2.2 (1) 16 V 0 VIN V 150 mA 125 °C –40 UNIT Recommended minimum VIN is the greater of 2.5 V or VOUT(max) + rated dropout voltage (max) for operating IL. Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 Electrical Characteristics at specified virtual junction temperature range, VIN = VOUT(NOM) + 1 V, VON/OFF = 2 V, CIN = 1 µF, IL = 1 mA, COUT = 4.7 µF (unless otherwise noted) PARAMETER TEST CONDITIONS IL = 1 mA ΔVOUT Output voltage tolerance 1 mA ≤ IL ≤ 50 mA 1 mA ≤ IL ≤ 150 mA Line regulation VIN = [VOUT(NOM) + 1 V] to 16 V IL = 0 IL = 1 mA VIN – VOUT Dropout voltage (1) IL = 10 mA IL = 50 mA IL = 150 mA TJ LP2985A-xx MIN IGND GND pin current 1 –1.5 1.5 1.5 –2.5 2.5 –40°C to 125°C –2.5 2.5 –3.5 3.5 25°C –2.5 2.5 –3 3 –40°C to 125°C –3.5 3.5 –4 25°C 0.007 –40°C to 125°C VON/OFF < 0.3 V (OFF) VON/OFF < 0.15 V (OFF) VON/OFF = HIGH → O/P ON VON/OFF ON/OFF input voltage (2) VON/OFF = LOW → O/P OFF VON/OFF = 0 ION/OFF ON/OFF input current VON/OFF = 5 V (1) (2) 0.014 25°C 1 –40°C to 125°C 1 3 7 10 5 25°C 7 –40°C to 125°C 40 –40°C to 125°C 25°C 120 40 280 –40°C to 125°C 150 120 150 280 350 575 95 65 95 25°C (LP2985-10) 125 125 –40°C to 125°C 125 125 –40°C to 125°C (LP2985-10) 160 160 75 110 25°C (LP2985-10) 140 –40°C to 125°C 170 120 75 110 140 170 220 120 220 25°C (LP2985-10) 250 250 –40°C to 125°C 400 400 350 600 350 650 650 –40°C to 125°C 1000 1000 850 1500 1800 –40°C to 125°C 2500 850 1500 1800 2500 25°C 0.01 0.8 0.01 0.8 –40°C to 105°C 0.05 2 0.05 2 –40°C to 125°C 5 25°C –40°C to 125°C 25°C 25°C –40°C to 125°C 1.4 1.6 1.6 0.55 V 0.55 0.15 0.01 –40°C to 125°C 25°C 5 1.4 –40°C to 125°C µA 600 25°C (LP2985-10) 25°C (LP2985-10) mV 225 350 575 65 60 90 225 25°C %/V 15 60 90 –40°C to 125°C %VNOM 5 10 15 25°C 0.014 0.032 3 UNIT 4 0.007 0.032 25°C IL = 150 mA MAX –1 25°C IL = 50 mA TYP –1.5 25°C IL = 10 mA MIN 25°C 25°C IL = 1 mA LP2985-xx MAX 25°C 25°C IL = 0 TYP 0.15 0.01 –2 5 –2 5 15 µA 15 Dropout voltage is defined as the input-to-output differential at which the output voltage drops 100 mV below the value measured with a 1-V differential. The ON/OFF input must be driven properly for reliable operation (see Application Information). Copyright © 2004–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com Electrical Characteristics (continued) at specified virtual junction temperature range, VIN = VOUT(NOM) + 1 V, VON/OFF = 2 V, CIN = 1 µF, IL = 1 mA, COUT = 4.7 µF (unless otherwise noted) PARAMETER TEST CONDITIONS TJ LP2985A-xx MIN TYP MAX LP2985-xx MIN TYP MAX UNIT Vn Output noise (RMS) BW = 300 Hz to 50 kHz, COUT = 10 µF, CBYPASS = 10 nF 25°C 30 30 µV ΔVOUT/ ΔVIN Ripple rejection f = 1kHz, COUT = 10 µF, CBYPASS = 10 nF 25°C 45 45 dB IOUT(PK) Peak output current VOUT ≥ VO(NOM) – 5% 25°C 350 350 mA IOUT(SC) Short-circuit current RL = 0 (steady state) (3) 25°C 400 400 mA (3) 6 See Figure 6 in Typical Performance Characteristics. Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 TYPICAL PERFORMANCE CHARACTERISTICS CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) OUTPUT VOLTAGE vs TEMPERATURE OUTPUT VOLTAGE vs TEMPERATURE 10.20 3.345 VI = 11 V 10.15 3.335 CO = 4.7 µF Output Voltage − V Output Voltage – V CI = 1 µF 10.10 VI = 4.3 V VO = 3.3 V Ci = 1 µF Co = 4.7 µF IO = 1 mA VO = 10 V IO = 1 mA 10.05 10.00 3.325 3.315 9.95 3.305 9.90 9.85 -50 -25 0 25 50 75 100 125 3.295 −50 150 −25 0 25 100 Figure 1. Figure 2. DROPOUT VOLTAGE vs TEMPERATURE SHORT-CIRCUIT CURRENT vs TIME 0.45 0.5 150 mA VO = 3.3 V Cbyp = 10 nF 0.45 0.4 Short-Circuit Current − A 0.35 0.3 Dropout − V 75 0.25 0.2 50 mA 0.15 0.1 125 150 Temperature − °C Temperature – °C 0.4 50 VI = 6 V VO = 3.3 V Ci = 1 µF Cbyp = 0.01 µF 0.35 0.3 0.25 0.2 0.15 0.1 10 mA 0.05 0.05 1 mA 0 −50 −25 0 25 50 75 Temperature − °C Figure 3. Copyright © 2004–2009, Texas Instruments Incorporated 100 125 150 0 −500 0 500 1000 Time − ms Figure 4. 1500 Submit Documentation Feedback 2000 7 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) SHORT-CIRCUIT CURRENT vs TIME 0.5 320 VI = 16 V VO = 3.3 V Ci = 1 µF Cbyp = 0.01 µF 0.45 0.4 VO = 3.3 V 300 0.35 280 ISC − mA Short-Circuit Current − A SHORT-CIRCUIT CURRENT vs OUTPUT VOLTAGE 0.3 0.25 260 0.2 240 0.15 0.1 220 0.05 0 −100 100 300 Time − ms 500 200 700 0 1.5 2 2.5 Output Voltage − V Figure 6. GROUND-PIN CURRENT vs LOAD CURRENT RIPPLE REJECTION vs FREQUENCY 3 3.5 100 VO = 3.3 V Cbyp = 10 nF 1100 VI = 5 V VO = 3.3 V Co = 10 µF Cbyp = 0 nF 90 1000 80 900 Ripple Rejection − dB Ground Pin Current − µA 1 Figure 5. 1200 800 700 600 500 400 70 50 mA 1 mA 60 50 40 150 mA 30 300 20 200 10 100 0 0 0 20 40 60 80 100 Load Current − mA Figure 7. 8 0.5 Submit Documentation Feedback 120 140 160 10 100 1k 10k 100k 1M Frequency − Hz Figure 8. Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 TYPICAL PERFORMANCE CHARACTERISTICS (continued) CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) RIPPLE REJECTION vs FREQUENCY RIPPLE REJECTION vs FREQUENCY 100 100 VI = 3.7 V VO = 3.3 V Co = 10 µF Cbyp = 0 nF Ripple Rejection − dB 80 80 70 1 mA 60 50 50 mA 40 30 VI = 5 V VO = 3.3 V Co = 4.7 µF Cbyp = 10 nF 90 Ripple Rejection − dB 90 70 1 mA 60 50 40 50 mA 30 150 mA 20 20 10 10 0 150 mA 0 10 100 1k 10k 100k 1M 10 100 1k Frequency − Hz Figure 9. RIPPLE REJECTION vs FREQUENCY 10 Ripple Rejection − dB 70 Output Impedance − Ω VI = 5 V VO = 3.3 V Co = 4.7 µF Cbyp = 10 nF 80 1 mA 60 10 mA 50 40 100k 1M OUTPUT IMPEDANCE vs FREQUENCY 100 90 10k Frequency − Hz Figure 10. 100 mA 30 1 Ci = 1 µF Co = 10 µF VO = 3.3 V 1 mA 10 mA 100 mA 0.1 0.01 20 10 0 10 100 1k 10k Frequency − Hz Figure 11. Copyright © 2004–2009, Texas Instruments Incorporated 100k 1M 0.001 10 100 1k 10k 100k 1M Frequency − Hz Figure 12. Submit Documentation Feedback 9 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) OUTPUT IMPEDANCE vs FREQUENCY 10 10 Ci = 1 µF Co = 4.7 µF VO = 3.3 V 1 ILOAD = 150 mA 1 mA Noise Density − µV/ Hz Output Impedance − Ω OUTPUT NOISE DENSITY vs FREQUENCY 10 mA 100 mA 0.1 1 Cbyp = 100 pF Cbyp = 1 nF 0.1 Cbyp = 10 nF 0.01 0.001 10 0.01 Frequency − Hz 1k 10k Frequency − Hz Figure 13. Figure 14. OUTPUT NOISE DENSITY vs FREQUENCY INPUT CURRENT vs INPUT VOLTAGE 100 1k 10k 100k 100 1M 10 1.8 ILOAD = 1 mA VO = 3.3 V Cbyp = 10 nF 1.6 RL = 3.3 kΩ 1.4 1 Input Current − mA Hz Noise Density − µV/ 100k Cbyp = 100 pF Cbyp = 1 nF 0.1 1.2 1 0.8 RL = Open 0.6 Cbyp = 10 nF 0.4 0.2 0.01 100 1k 10k Frequency − Hz Figure 15. 10 Submit Documentation Feedback 100k 0 0 1 2 3 4 5 6 Input Voltage − V Figure 16. Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 TYPICAL PERFORMANCE CHARACTERISTICS (continued) CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) GROUND-PIN CURRENT vs TEMPERATURE LOAD TRANSIENT RESPONSE 1400 150 mA 200 3.38 150 3.36 100 800 600 1 mA 400 50 mA 3.34 3.32 3.3 50 IL VO = 3.3 V Cbyp = 10 nF ∆IL = 100 mA 0 −50 VO 3.28 −100 3.26 −150 3.24 −200 3.22 −250 Load Current − mA 1000 Output Voltage − V Ground Current − C 1200 VO = 3.3 V Cbyp = 10 nF 3.4 0 mA 200 10 mA 0 −25 0 25 50 75 100 125 150 Temperature − °C 20 µs/div" Figure 17. Figure 18. LOAD TRANSIENT RESPONSE 3.4 200 3.38 150 3.38 150 3.36 100 3.36 100 IL 3.34 3.32 3.3 VO = 3.3 V Cbyp = 10 nF ∆IL = 150 mA 50 0 −50 VO Output Voltage − V 200 Load Current − mA Output Voltage − V LOAD TRANSIENT RESPONSE 3.4 IL 3.34 3.32 3.3 VO = 3.3 V Cbyp = 0 nF ∆IL = 150 mA 50 0 −50 VO 3.28 −100 3.28 −100 3.26 −150 3.26 −150 3.24 −200 3.24 −200 3.22 −250 3.22 −250 20 µs/div" Figure 19. Copyright © 2004–2009, Texas Instruments Incorporated Load Current − mA −50 20 µs/div" Figure 20. Submit Documentation Feedback 11 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) 3.39 5 3.39 5 4.5 3.37 VI VO = 3.3 V Cbyp = 0 nF IO = 150 mA 4 3.5 3.33 3.31 VO 3 3.29 2.5 3.27 2 3.35 VI VO = 3.3 V Cbyp = 10 nF IO = 150 mA 4 3.33 3.5 3.31 3 3.29 VO 3.27 2.5 2 20 µs/div" 20 µs/div" Figure 22. Figure 21. LINE TRANSIENT RESPONSE LINE TRANSIENT RESPONSE 3.41 5.5 3.39 5 3.39 5 4.5 3.37 VI 3.35 VO = 3.3 V Cbyp = 0 nF IO = 1 mA 4 Output Voltage − V 5.5 Input Voltage − V 3.41 3.37 Output Voltage − V 4.5 3.33 3.5 3.31 3 3.31 2.5 3.29 4.5 4 3.35 3.33 3.29 VIN VO = 3.3 V Cbyp = 10 nF IO = 1 mA 3.5 VO Input Voltage − V 3.35 Output Voltage − V 5.5 Input Voltage − V 3.41 3.37 Output Voltage − V LINE TRANSIENT RESPONSE 5.5 Input Voltage − V LINE TRANSIENT RESPONSE 3.41 3 2.5 VO 3.27 2 20 µs/div" Figure 23. 12 Submit Documentation Feedback 3.27 2 100 µs/div" Figure 24. Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 TYPICAL PERFORMANCE CHARACTERISTICS (continued) CIN = 1 µF, COUT = 4.7 µF, VIN = VOUT(NOM) + 1 V, TA = 25°C, ON/OFF pin tied to VIN (unless otherwise specified) TURN-ON TIME TURN-ON TIME 4 10 10 4 VO VO 3 3 8 8 6 0 VO = 3.3 V Cbyp = 0 IO = 150 mA 4 −2 6 0 −1 VO = 3.3 V Cbyp = 100 pF ILOAD = 150 mA 4 −2 VON/OFF VON/OFF 2 −3 −3 −4 0 0 −4 100 µs/div" 200 µs/div" Figure 25. Figure 26. TURN-ON TIME TURN-ON TIME 10 4 4 Input VO 8 8 2 6 0 VO = 3.3 V Cbyp = 1 nF ILOAD = 150 mA 4 1 6 0 −1 4 VO = 3.3 V Cbyp = 10 nF ILOAD = 150 mA Output −2 VON/OFF −2 Output Voltage − V 1 VON/OFF − V 2 Output Voltage − V 10 3 3 −1 2 VON/OFF − V −1 1 VON/OFF − V 1 Output Voltage − V 2 VON/OFF − V Output Voltage − V 2 2 2 −3 −3 0 −4 2 ms/div" Figure 27. Copyright © 2004–2009, Texas Instruments Incorporated 0 −4 20 ms/div" Figure 28. Submit Documentation Feedback 13 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com APPLICATION INFORMATION Capacitors Input Capacitor (CIN) A minimum value of 1 µF (over the entire operating temperature range) is required at the input of the LP2985. In addition, this input capacitor should be located within 1 cm of the input pin and connected to a clean analog ground. There are no equivalent series resistance (ESR) requirements for this capacitor, and the capacitance can be increased without limit. Output Capacitor (COUT) As an advantage over other regulators, the LP2985 permits the use of low-ESR capacitors at the output, including ceramic capacitors that can have an ESR as low as 5 mΩ. Tantalum and film capacitors also can be used if size and cost are not issues. The output capacitor also should be located within 1 cm of the output pin and be returned to a clean analog ground. As with other PNP LDOs, stability conditions require the output capacitor to have a minimum capacitance and an ESR that falls within a certain range. • Minimum COUT: 2.2 µF (can be increased without limit to improve transient response stability margin) • ESR range: see Figure 29 through Figure 31 Figure 30. 4.7-µF Stable ESR Range for Output Voltage ≤2.3 V ESR (Ω) Figure 29. 2.2-µF Stable ESR Range for Output Voltage ≤2.3 V Figure 31. 2.2-µF/3.3-µF Stable ESR Range for Output Voltage ≥2.5 V It is critical that both the minimum capacitance and ESR requirement be met over the entire operating temperature range. Depending on the type of capacitors used, both these parameters can vary significantly with temperature (see capacitor characteristics). 14 Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated LP2985 www.ti.com .......................................................................................................................................................... SLVS522M – JULY 2004 – REVISED MARCH 2009 Noise Bypass Capacitor (CBYPASS) The LP2985 allows for low-noise performance with the use of a bypass capacitor that is connected to the internal bandgap reference via the BYPASS pin. This high-impedance bandgap circuitry is biased in the microampere range and, thus, cannot be loaded significantly, otherwise, its output – and, correspondingly, the output of the regulator – changes. Thus, for best output accuracy, dc leakage current through CBYPASS should be minimized as much as possible and never should exceed 100 nA. A 10-nF capacitor is recommended for CBYPASS. Ceramic and film capacitors are well suited for this purpose. Capacitor Characteristics Ceramics Ceramic capacitors are ideal choices for use on the output of the LP2985 for several reasons. For capacitances in the range of 2.2 µF to 4.7 µF, ceramic capacitors have the lowest cost and the lowest ESR, making them choice candidates for filtering high-frequency noise. For instance, a typical 2.2-µF ceramic capacitor has an ESR in the range of 10 mΩ to 20 mΩ and, thus, satisfies minimum ESR requirements of the regulator. Ceramic capacitors have one major disadvantage that must be taken into account – a poor temperature coefficient, where the capacitance can vary significantly with temperature. For instance, a large-value ceramic capacitor (≥2.2 µF) can lose more than half of its capacitance as the temperature rises from 25°C to 85°C. Thus, a 2.2-µF capacitor at 25°C drops well below the minimum COUT required for stability, as ambient temperature rises. For this reason, select an output capacitor that maintains the minimum 2.2 µF required for stability over the entire operating temperature range. Note that there are some ceramic capacitors that can maintain a ±15% capacitance tolerance over temperature. Tantalum Tantalum capacitors can be used at the output of the LP2985, but there are significant disadvantages that could prohibit their use: • In the 1-µF to 4.7-µF range, tantalum capacitors are more expensive than ceramics of the equivalent capacitance and voltage ratings. • Tantalum capacitors have higher ESRs than their equivalent-sized ceramic counterparts. Thus, to meet the ESR requirements, a higher-capacitance tantalum may be required, at the expense of larger size and higher cost. • The ESR of a tantalum capacitor increases as temperature drops, as much as double from 25°C to –40°C. Thus, ESR margins must be maintained over the temperature range to prevent regulator instability. ON/OFF Operation The LP2985 allows for a shutdown mode via the ON/OFF pin. Driving the pin LOW (≤0.3 V) turns the device OFF; conversely, a HIGH (≥1.6 V) turns the device ON. If the shutdown feature is not used, ON/OFF should be connected to the input to ensure that the regulator is on at all times. For proper operation, do not leave ON/OFF unconnected, and apply a signal with a slew rate of ≥40 mV/µs. Reverse Input-Output Voltage There is an inherent diode present across the PNP pass element of the LP2985. VIN VOUT With the anode connected to the output, this diode is reverse biased during normal operation, since the input voltage is higher than the output. However, if the output is pulled higher than the input for any reason, this diode Copyright © 2004–2009, Texas Instruments Incorporated Submit Documentation Feedback 15 LP2985 SLVS522M – JULY 2004 – REVISED MARCH 2009 .......................................................................................................................................................... www.ti.com is forward biased and can cause a parasitic silicon-controlled rectifier (SCR) to latch, resulting in high current flowing from the output to the input. Thus, to prevent possible damage to the regulator in any application where the output may be pulled above the input, an external Schottky diode should be connected between the output and input. With the anode on output, this Schottky limits the reverse voltage across the output and input pins to ∼0.3 V, preventing the regulator’s internal diode from forward biasing. Schottky VIN VOUT LP2985 16 Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated PACKAGE OPTION ADDENDUM www.ti.com 15-Jul-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) LP2985-10DBVR ACTIVE SOT-23 DBV 5 1 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-10DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985-18DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-18DBVRE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-18DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-18DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-18DBVTE4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-18DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-25DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-25DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-25DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-25DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-28DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-28DBVRE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-28DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-28DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-28DBVTE4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 15-Jul-2010 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) LP2985-28DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-29DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-29DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-29DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985-29DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985-30DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-30DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-30DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985-30DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985-33DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-33DBVRE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-33DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-33DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-33DBVTE4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-33DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985-50DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-50DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985-50DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 15-Jul-2010 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) LP2985-50DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-10DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-10DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985A-18DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-18DBVRE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-18DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-18DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-18DBVTE4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-18DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-25DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-25DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-25DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-25DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-28DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-28DBVRE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-28DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-28DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-28DBVTE4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office Addendum-Page 3 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 15-Jul-2010 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) LP2985A-28DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-29DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-29DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-29DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985A-29DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985A-30DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-30DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-30DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985A-30DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples LP2985A-33DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-33DBVRE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-33DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-33DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-33DBVTE4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-33DBVTG4 ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office LP2985A-50DBVR ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-50DBVRG4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples LP2985A-50DBVT ACTIVE SOT-23 DBV 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples Addendum-Page 4 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device LP2985A-50DBVTG4 15-Jul-2010 Status (1) ACTIVE Package Type Package Drawing SOT-23 DBV Pins 5 Package Qty 250 Eco Plan (2) Green (RoHS & no Sb/Br) Lead/ Ball Finish MSL Peak Temp CU NIPDAU Level-1-260C-UNLIM (3) Samples (Requires Login) Purchase Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 5 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2010 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing LP2985-10DBVR SOT-23 DBV 5 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 1 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-10DBVT SOT-23 DBV 5 250 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-18DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-18DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-18DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-25DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-25DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-25DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-28DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-28DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-28DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-29DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-29DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-29DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-30DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-30DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-30DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-33DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2010 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) LP2985-33DBVR SOT-23 DBV 5 3000 178.0 9.0 LP2985-33DBVT SOT-23 DBV 5 250 178.0 9.0 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.23 3.17 1.37 4.0 8.0 Q3 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-33DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-50DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-50DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985-50DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-10DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-10DBVT SOT-23 DBV 5 250 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-18DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-18DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-18DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-25DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-25DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-25DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-28DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-28DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-28DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-29DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-29DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-29DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-30DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-30DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-30DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-33DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-33DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-33DBVT SOT-23 DBV 5 250 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-33DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-50DBVR SOT-23 DBV 5 3000 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-50DBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 LP2985A-50DBVT SOT-23 DBV 5 250 180.0 9.2 3.23 3.17 1.37 4.0 8.0 Q3 Pack Materials-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2010 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LP2985-10DBVR SOT-23 DBV LP2985-10DBVT SOT-23 DBV 5 1 180.0 180.0 18.0 5 250 180.0 180.0 18.0 LP2985-18DBVR SOT-23 LP2985-18DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 DBV 5 3000 180.0 180.0 LP2985-18DBVT 18.0 SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985-25DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985-25DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985-25DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985-28DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985-28DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985-28DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985-29DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985-29DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985-29DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985-30DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985-30DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985-30DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985-33DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985-33DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985-33DBVT SOT-23 DBV 5 250 180.0 180.0 18.0 Pack Materials-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2010 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LP2985-33DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985-50DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985-50DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985-50DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-10DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-10DBVT SOT-23 DBV 5 250 180.0 180.0 18.0 LP2985A-18DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-18DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-18DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-25DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-25DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-25DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-28DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-28DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-28DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-29DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-29DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-29DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-30DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-30DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-30DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-33DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-33DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-33DBVT SOT-23 DBV 5 250 180.0 180.0 18.0 LP2985A-33DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 LP2985A-50DBVR SOT-23 DBV 5 3000 205.0 200.0 33.0 LP2985A-50DBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 LP2985A-50DBVT SOT-23 DBV 5 250 205.0 200.0 33.0 Pack Materials-Page 4 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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