Tri-Mode 300 mA CMOS LDO Regulator

NCP585 Tri−Mode 300 mA CMOS LDO Regulator with Enable The NCP585 series of low dropout regulators are designed for portable battery powered applications which require precise output voltage accuracy, low supply current, and high ripple rejection. These devices feature an enable function which lowers current consumption significantly and are offered in the SOT23−5 and the HSON−6 packages. This series of devices have three modes. Chip Enable (CE mode), Fast Transient Mode (FT mode), and Low Power Mode (LP mode). Both the FT and LP mode are utilized via the ECO pin. Features http://onsemi.com MARKING DIAGRAM 5 1 DEV M • Low Dropout Voltage of 480 mV at 300 mA, Output Voltage = 1.0 V • • • 310 mV at 300 mA, Output Voltage = 1.5 V 230 mV at 300 mA, Output Voltage = 3.0 V Excellent Line and Load Regulation High Output Voltage Accuracy of ±2% (±3% LP mode) Ultra−Low Supply Current of: 3.5 mA (LP mode, Output Voltage < 1.6 V) 80 mA (FT mode, Output Voltage < 1.8 V) 60 mA (FT mode, Output Voltage ≥ 1.8 V) Excellent Power Supply Rejection Ratio of 65 dB www.DataSheet4U.com Output Voltage Options: 0.9, 1.2 and 1.8 V Low Temperature Drift Coefficient on the Output Voltage Low Quiescent of 0.1 mA Fold Back Protection Circuit These are Pb−Free Devices SOT23−5 SN SUFFIX CASE 1212 5 DEVM 1 = Specific Device Code = Date Code 6 6 1 HSON−6 SAN SUFFIX CASE 506AE 1 XXX XYY • • • • • • XXXX YY = Specific Device Code = Wafer Lot ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet. Typical Applications • Portable Equipment • Hand−Held Instrumentation • Camcorders and Cameras © Semiconductor Components Industries, LLC, 2005 1 March, 2005 − Rev. 3 Publication Order Number: NCP585/D NCP585 ECO Vin Vout Vin ECO Vout − + Vref Current Limit CE GND CE Vref − + Current Limit GND Figure 1. Simplified Block Diagram for Active Low Figure 2. Simplified Block Diagram for Active High ECO Vin Vout − + Vref Current Limit CE GND Figure 1. Simplified Block Diagram for Active High with Auto Discharge PIN FUNCTION DESCRIPTION HSON−6 1 2 3 4 5 6 SOT23−5 1 − 5 4 2 3 Pin Name Vin NC Vout ECO GND CE or CE Power supply input voltage. No Connect. Regulated output voltage. Mode alternative pin. Power supply ground. Chip enable pin. Description http://onsemi.com 2 NCP585 MAXIMUM RATINGS Rating Input Voltage Input Voltage (CE or CE Pin) Input Voltage (ECO Pin) Output Voltage Output Current Power Dissipation Operating Junction Temperature Range Storage Temperature Range SOT23−5 HSON−6 Symbol Vin VCE VECO Vout Iout PD TJ Tstg Value 6.5 −0.3 to 6.5 −0.3 to 6.5 −0.3 to Vin +0.3 350 250 400 −40 to +85 +150 Unit V V V V mA mW °C °C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. ELECTRICAL CHARACTERISTICS (Vin = Vout + 1.0 V, TA = 25°C, unless otherwise noted.) Characteristic Input Voltage Output Voltage (1.0 mA ≤ Iout ≤ 30 mA) VECO = Vin VECO = GND Line Regulation (Iout = 30 mA, Vout + 0.5 V ≤ Vin ≤ 6.0 V) FT Mode VECO = Vin LP Mode VECO = GND Load Regulation FT Mode (1.0 mA ≤ Iout ≤ 300 mA), VECO = Vin LP Mode (1.0 mA ≤ Iout ≤ 100 mA), VECO = GND Dropout Voltage (Iout = 300 mA) Vout = 0.9 V 1.0 ≤ Vout ≤ 1.4 V 1.5 ≤ Vout ≤ 2.5 V Power Supply Current (Iout = 0 mA) FT Mode, VECO = Vin Vout < 1.8 V Vout ≥ 1.8 V LP Mode, VECO = GND Vout < 1.6 V Vout ≥ 1.6 V Output Current (Vin − Vout = 1.0 V) Quiescent Current (VCE = Vin) Output Short Circuit Current (Vout = 0 V) Enable Input Threshold Voltage Active Low, ECO Input Voltage = High Active High, ECO Input Voltage = Low Output Noise Voltage (10 Hz − 100 kHz) N−Channel On Resistance for Auto Discharge Symbol Vin Vout Vout x 0.980 Vout x 0.970 Regline − − Regload − − VDO − − − Isupply − − − − Iout IQ Ilim Vthenl Vthenh Vn RLow 300 − − 1.0 1.0 − − 80 60 3.5 4.5 − 0.1 50 − − 30 60 111 90 8.0 9.0 − 1.0 − 0.6 Vin − − mVrms W mA mA mA V 40 15 ECO = H 0.55 0.48 0.31 ECO = L 0.59 0.51 0.32 70 30 ECO = H 0.78 0.70 0.45 ECO = L 0.80 0.75 0.48 V 0.01 0.05 0.15 0.20 mV − − Vout x 1.020 Vout x 1.030 %/V Min 1.4 Typ − Max 6.0 Unit V V mA http://onsemi.com 3 NCP585 TYPICAL CHARACTERISTICS 1.0 OUTPUT VOLTAGE, Vout (V) OUTPUT VOLTAGE, Vout (V) Vin = 2.8 V 0.8 1.0 Vin = 2.8 V 0.8 0.6 0.6 0.4 1.45 V 0.2 ECO = H 0.0 0 200 400 600 OUTPUT CURRENT, Iout (mA) 0.4 1.45 V 0.2 ECO = L 0.0 0 200 400 600 OUTPUT CURRENT, Iout (mA) Figure 3. Output Voltage vs. Output Current 1.6 OUTPUT VOLTAGE, Vout (V) OUTPUT VOLTAGE, Vout (V) 1.4 1.2 1.0 0.8 1.8 V 0.6 0.4 0.2 0.0 0 200 400 ECO = H 600 Vin = 3.5 V 1.6 1.4 1.2 1.0 0.8 Figure 4. Output Voltage vs. Output Current Vin = 3.5 V 1.8 V 0.6 0.4 0.2 0.0 0 200 400 ECO = L 600 OUTPUT CURRENT, Iout (mA) OUTPUT CURRENT, Iout (mA) Figure 5. Output Voltage vs. Output Current 1.0 0.9 OUTPUT VOLTAGE, Vout (V) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 1.0 2.0 3.0 4.0 Iout = 1.0 mA Iout = 30 mA Iout = 50 mA ECO = H 5.0 6.0 OUTPUT VOLTAGE, Vout (V) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 Figure 6. Output Voltage vs. Output Current Iout = 1.0 mA Iout = 30 mA Iout = 50 mA ECO = L 1.0 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE, Vin (V) INPUT VOLTAGE, Vin (V) Figure 7. Output Voltage vs. Input Voltage Figure 8. Output Voltage vs. Input Voltage http://onsemi.com 4 NCP585 TYPICAL CHARACTERISTICS 1.6 OUTPUT VOLTAGE, Vout (V) OUTPUT VOLTAGE, Vout (V) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 1.0 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE, Vin (V) Iout = 1.0 mA Iout = 30 mA Iout = 50 mA ECO = H 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 1.0 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE, Vin (V) Iout = 1.0 mA Iout = 30 mA Iout = 50 mA ECO = L Figure 9. Output Voltage vs. Input Voltage Figure 10. Output Voltage vs. Input Voltage 100 SUPPLY CURRENT, Isupply (mA) SUPPLY CURRENT, Isupply (mA) 90 80 70 60 50 40 30 20 10 0 0 1.0 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE, Vin (V) ECO = H 8 7 6 5 4 3 2 1 0 0 4.0 ECO = L 1.0 2.0 3.0 5.0 6.0 INPUT VOLTAGE, Vin (V) Figure 11. Power Supply Current vs. Input Voltage 80 SUPPLY CURRENT, Isupply (mA) SUPPLY CURRENT, Isupply (mA) 70 60 50 40 30 20 10 ECO = H 0 0 1.0 2.0 3.0 4.0 5.0 6.0 Figure 12. Power Supply Current vs. Input Voltage 8 7 6 5 4 3 2 1 ECO = L 0 0 1.0 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE, Vin (V) INPUT VOLTAGE, Vin (V) Figure 13. Power Supply Current vs. Input Voltage Figure 14. Power Supply Current vs. Input Voltage http://onsemi.com 5 NCP585 TYPICAL CHARACTERISTICS 0.83 OUTPUT VOLTAGE, Vout (V) 0.82 0.81 0.80 0.79 0.78 0.77 −50 Vout = 0.8 V ECO = H −25 0 25 50 75 100 OUTPUT VOLTAGE, Vout (V) 0.83 0.82 0.81 0.80 0.79 0.78 0.77 −50 Vout = 0.8 V ECO = L −25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) Figure 15. Output Voltage vs. Temperature 1.53 OUTPUT VOLTAGE, VDO (V) OUTPUT VOLTAGE, VDO (V) 1.52 1.51 1.50 1.49 1.48 1.47 1.46 −50 Vout = 1.5 V ECO = H −25 0 25 50 75 100 1.53 1.52 1.51 1.50 1.49 1.48 1.47 1.46 −50 Figure 16. Output Voltage vs. Temperature Vout = 1.5 V ECO = L −25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) Figure 17. Output Voltage vs. Temperature 0.8 DROPOUT VOLTAGE, VDO (V) 0.7 0.6 85°C 0.5 0.4 0.3 25°C 0.2 0.1 0.0 0 50 100 150 200 Vout = 0.8 V ECO = H 250 300 40°C DROPOUT VOLTAGE, VDO (V) 0.8 0.7 Figure 18. Output Voltage vs. Temperature 85°C 0.6 0.5 0.4 40°C 0.3 25°C 0.2 0.1 0.0 0 50 100 150 200 Vout = 0.8 V ECO = L 250 300 OUTPUT CURRENT, Iout (mA) OUTPUT CURRENT, Iout (mA) Figure 19. Dropout Voltage vs. Output Current Figure 20. Dropout Voltage vs. Output Current http://onsemi.com 6 NCP585 TYPICAL CHARACTERISTICS 0.7 DROPOUT VOLTAGE, VDO (V) DROPOUT VOLTAGE, VDO (V) 0.6 0.5 0.4 0.3 40°C 0.2 25°C 0.1 0.0 0 Vout = 1.0 V ECO = H 50 100 150 200 250 300 85°C 0.7 0.6 0.5 85°C 0.4 0.3 40°C 0.2 0.1 0.0 0 25°C Vout = 1.0 V ECO = L 150 200 250 300 50 100 OUTPUT CURRENT, Iout (mA) OUTPUT CURRENT, Iout (mA) Figure 21. Dropout Voltage vs. Output Current 0.40 DROPOUT VOLTAGE, VDO (V) DROPOUT VOLTAGE, VDO (V) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 200 25°C Vout = 1.5 V ECO = H 50 100 150 250 300 85°C 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 Figure 22. Dropout Voltage vs. Output Current 85°C 40°C 40°C 25 (°C) Vout = 1.5 V ECO = L 200 250 300 0.00 0 50 100 150 OUTPUT CURRENT, Iout (mA) OUTPUT CURRENT, Iout (mA) Figure 23. Dropout Voltage vs. Output Current 100 RIPPLE REJECTION, RR (dB) RIPPLE REJECTION, RR (dB) 90 I = 30 mA out 80 70 60 50 40 30 20 10 0 0 Vout = 0.8 V Vin = 1.8 V + 0.2 Vp−p Cout = 2.2 mF, ECO = H 1 10 100 Iout = 50 mA Iout = 1.0 mA 100 90 80 70 60 50 40 30 20 10 0 0 Figure 24. Dropout Voltage vs. Output Current Vout = 0.8 V Vin = 1.8 V + 0.2 Vp−p Cout = 2.2 mF, ECO = L Iout = 1.0 mA Iout = 30 mA Iout = 50 mA 1 10 100 FREQUENCY, f (kHz) FREQUENCY, f (kHz) Figure 25. Ripple Rejection vs. Frequency Figure 26. Ripple Rejection vs. Frequency http://onsemi.com 7 NCP585 TYPICAL CHARACTERISTICS 100 RIPPLE REJECTION, RR (dB) 90 80 70 60 50 40 30 20 10 0 0 Vout = 1.5 V Vin = 2.5 V + 0.2 Vp−p Cout = 2.2 mF, ECO = H 1 10 100 Iout = 50 mA Iout = 1.0 mA RIPPLE REJECTION, RR (dB) Iout = 30 mA 100 90 80 70 60 50 40 30 20 10 0 0 1 10 Iout = 50 mA 100 Iout = 1.0 mA Iout = 30 mA Vout = 1.5 V Vin = 2.5 V + 0.2 Vp−p Cout = 2.2 mF, ECO = L FREQUENCY, f (kHz) FREQUENCY, f (kHz) Figure 27. Ripple Rejection vs. Frequency Figure 28. Ripple Rejection vs. Frequency 0.88 Input Voltage OUTPUT VOLTAGE, Vout (V) 0.86 0.84 0.82 Output Voltage 0.80 0.78 0.76 0 ECO = H, Iout = 30 mA Cout = Tantalum 1.0 mF Vout = 0.8 V 10 20 30 40 50 60 70 80 90 4 3 2