Low-Dropout Voltage Regulator

NCP502, NCP502A 80 mA CMOS Low Iq, Low− Dropout Voltage Regulator The NCP502/A series of fixed output linear regulators are designed for handheld communication equipment and portable battery powered applications which require low quiescent. The NCP502/A series features an ultra−low quiescent current of 40 mA. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, resistors for setting output voltage, current limit, and temperature limit protection circuits. The NCP502/A has been designed to be used with low cost ceramic capacitors. The device is housed in the micro−miniature SC70−5 and TSOP−5 surface mount packages. Standard voltage versions are 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 3.3 V, 3.4 V, 3.5 V, 3.6 V, 3.7 V and 5.0 V. Other voltages are available in 100 mV steps. Features http://onsemi.com MARKING DIAGRAM 4 5 12 3 SC70−5 SQ SUFFIX CASE 419A 5 xxx MG G 1 5 xxx AYWG G 1 • • • • • • • • • • • • Pb−Free Packages are Available Low Quiescent Current of 40 mA Typical Excellent Line and Load Regulation Low Output Voltage Option Output Voltage Accuracy of 2.0% Industrial Temperature Range of −40°C to 85°C NCP502: 1.3 V Enable Threshold High, 0.3 V Enable Threshold Low www.DataSheet4U.com NCP502A: 1.0 V Enable Threshold High, 0.4 V Enable Threshold Low Cellular Phones Battery Powered Consumer Products Hand−Held Instruments Camcorders and Cameras 5 1 TSOP−5 (SOT23−5, SC59−5) SN SUFFIX CASE 483 xxx = Specific Device Code A = Assembly Location Y = Year W = Work Week M = Date Code G = Pb−Free Package (Note: Microdot may be in either location) Typical Applications PIN CONNECTIONS Vin GND Enable 1 2 3 (Top View) Battery or Unregulated Voltage Vout C1 + 1 2 ON OFF This device contains 86 active transistors 3 4 5 + C2 4 N/C 5 Vout ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. Figure 1. Typical Application Diagram © Semiconductor Components Industries, LLC, 2007 1 February, 2007 − Rev. 12 Publication Order Number: NCP502/D NCP502, NCP502A Á ÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ PIN FUNCTION DESCRIPTION Pin No. 1 2 3 4 5 Pin Name Vin Description Positive power supply input voltage. Power supply ground. GND Enable N/C This input is used to place the device into low−power standby. When this input is pulled low, the device is disabled. If this function is not used, Enable should be connected to Vin. No internal connection. Vout Regulated output voltage. MAXIMUM RATINGS ÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ Á Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ ÁÁÁÁ Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Input Voltage Vin 12 V V V Enable Voltage Output Voltage Enable Vout −0.3 to Vin +0.3 −0.3 to Vin +0.3 Power Dissipation and Thermal Characteristics Power Dissipation Thermal Resistance, Junction−to−Ambient Operating Junction Temperature Operating Ambient Temperature Storage Temperature PD RqJA TJ Internally Limited 400 +125 W °C/W °C °C °C TA −40 to +85 Tstg −55 to +150 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL−STD−883, Method 3015. Machine Model Method 200 V. 2. Latchup capability (85°C) "100 mA DC with trigger voltage. Rating Symbol Value Unit http://onsemi.com 2 NCP502, NCP502A ELECTRICAL CHARACTERISTICS (Vin = Vout(nom.) + 2.0 V, Venable = Vin, Cin = 1.0 mF, Cout = 1.0 mF, TJ = 25°C, unless otherwise noted.) Characteristic Output Voltage (TA = 25°C, Iout = 10 mA) Vin = Vout (nom.) +1.0 V 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 2.9 V 3.0 V 3.1 V 3.3 V 3.4 V 3.5 V 3.6 V 3.7 V 5.0 V Output Voltage (TA = −40°C to 85°C, Iout = 10 mA) Vin = Vout (nom.) 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 2.9 V 3.0 V 3.1 V 3.3 V 3.4 V 3.5 V 3.6 V 3.7 V 5.0 V Line Regulation (Vin = Vout + 1.0 V to 12 V, Iout = 10 mA) Load Regulation (Iout = 1.0 mA to 80 mA) Output Current (Vout = (Vout at Iout = 80 mA) −3%) Dropout Voltage (TA = −40°C to 85°C, Iout = 80 mA, Measured at Vout −3.0%) 1.5 V−1.7 V 1.8 V−2.4 V 2.5 V−2.6 V 2.7 V−2.9 V 3.0 V−4.0 V 4.1 V−5.0 V Quiescent Current (Enable Input = 0 V) (Enable Input = Vin, Iout = 1.0 mA to Io(nom.)) Output Short Circuit Current (Vout = 0 V) Ripple Rejection (f = 1.0 kHz, 15 mA) Output Voltage Noise (f = 100 Hz to 100 kHz) Enable Input Threshold Voltage (NCP502) (Voltage Increasing, Output Turns On, Logic High) (Voltage Decreasing, Output Turns Off, Logic Low) Enable Input Threshold Voltage (NCP502A) (Voltage Increasing, Output Turns On, Logic High) (Voltage Decreasing, Output Turns Off, Logic Low) Output Voltage Temperature Coefficient 3. Maximum package power dissipation limits must be observed. T *TA PD + J(max) RqJA 4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible. Symbol Vout 1.455 1.746 2.425 2.646 2.744 2.842 2.94 3.038 3.234 3.332 3.43 3.528 3.626 4.900 Vout 1.455 1.746 2.425 2.619 2.716 2.813 2.910 3.007 3.201 3.298 3.43 3.528 3.626 4.900 Regline Regload Io(nom.) Vin−Vout − − − − − − IQ − − Iout(max) RR Vn Vth(en) 1.3 − Vth(en) 1.0 − TC − − − 100 − 0.4 − ppm/°C − − − 0.3 V 90 − − 0.1 40 200 55 180 1.0 90 500 − − mA dB mVrms V 1500 1300 1000 850 850 600 1900 1700 1400 1300 1200 900 mA − − 80 1.5 1.8 2.5 2.7 2.8 2.9 3.0 3.1 3.3 3.4 3.5 3.6 3.7 5.0 0.4 0.2 180 1.545 1.854 2.575 2.781 2.884 2.987 3.09 3.193 3.399 3.502 3.57 3.672 3.774 5.100 3.0 0.8 − mV/V mV/mA mA mV 1.5 1.8 2.5 2.7 2.8 2.9 3.0 3.1 3.3 3.4 3.5 3.6 3.7 5.0 1.545 1.854 2.575 2.754 2.856 2.958 3.06 3.162 3.366 3.468 3.57 3.672 3.774 5.100 V Min Typ Max Unit V http://onsemi.com 3 NCP502, NCP502A 45 IQ, QUIESCENT CURRENT (mA) 40 35 30 25 20 15 10 5 0 0 1 2 3 4 5 6 7 VIN, INPUT VOLTAGE (V) IQ, QUIESCENT CURRENT (mA) VOUT = 3.0 V 45 42.5 40 37.5 35 32.5 30 −60 VIN = 5.0 V VOUT = 3.0 V −40 −20 0 20 40 60 80 100 T, TEMPERATURE (°C) Figure 2. Quiescent Current versus Input Voltage Figure 3. Quiescent Current versus Temperature VIN, INPUT VOLTAGE (V) VIN = 4.0 V to 5.0 V 5 4 60 40 20 0 −20 −40 0 10 20 30 40 50 60 70 80 90 COUT = 1.0 mF IOUT = 30 mA ENABLE VOLTAGE (V) 6 10 5 0 VIN = 4.0 V VENABLE = 0 to 4.0 V OUTPUT VOLTAGE DEVIATION (mV) VOUT, OUTPUT VOLTAGE (V) 3.0 2.0 1.0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 IOUT = 30 mA COUT = 1.0 mF 100 0.7 0.8 0.9 1.0 t, TIME (ms) t, TIME (ms) Figure 4. Line Transient Response Figure 5. Enable Response IOUT, OUTPUT CURRENT (mA) 60 RIPPLE REJECTION (dB) 30 0 100 COUT = 1.0 mF VOUT = 3.0 V VIN = 4.0 V 70 60 50 OUTPUT VOLTAGE DEVIATION (mV) 50 0 −50 40 VIN = 4.5 V + 0.5 VP−P VOUT = 3.0 V IOUT = 30 mA COUT = 1.0 mF 0.1 1.0 FREQUENCY (kHz) 10 100 30 20 0.01 −100 0 50 100 150 200 250 300 350 400 450 t, TIME (ms) Figure 6. Load Transient Response Figure 7. Ripple Rejection/Frequency http://onsemi.com 4 NCP502, NCP502A 2.995 IOUT = 10 mA VOUT, OUTPUT VOLTAGE (V) 2.99 2.985 VIN = 4.0 V 2.98 2.975 2.97 2.965 2.96 −60 VIN = 12 V VOUT, OUTPUT VOLTAGE (V) 3 2.5 2 1.5 1 0.5 0 −40 −20 0 20 40 60 80 100 0 1 2 3 4 5 6 T, TEMPERATURE (°C) VIN, INPUT VOLTAGE (V) 3.5 CIN = 1.0 mF COUT = 1.0 mF VENABLE = VIN Figure 8. Output Voltage versus Temperature Figure 9. Output Voltage versus Input Voltage VIN − VOUT, DROPOUT VOLTAGE (mV) 1200 1000 80 mA LOAD 800 600 400 200 0 −50 −25 0 25 50 75 T, TEMPERATURE (°C) 10 mA LOAD 100 125 40 mA LOAD Figure 10. Dropout Voltage versus Temperature http://onsemi.com 5 NCP502, NCP502A DEFINITIONS Load Regulation Line Regulation The change in output voltage for a change in output current at a constant temperature. Dropout Voltage The input/output differential at which