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| MC78PC00 Series Low Noise 150 mA Low Drop Out (LDO) Linear Voltage Regulator The MC78PC00 are a series of CMOS linear voltage regulators with high output voltage accuracy, low supply current, low dropout voltage, and high Ripple Rejection. Each of these voltage regulators consists of an internal voltage reference, an error amplifier, resistors, a current limiting circuit and a chip enable circuit. The dynamic Response to line and load is fast, which makes these products ideally suited for use in hand-held communication equipment. The MC78PC00 series are housed in the SOT-23 5 lead package, for maximum board space saving. MC78PC00 Features: http://onsemi.com 5 1 SOT-23-5 N SUFFIX CASE 1212 * * * * * * * * * * * Ultra-Low Supply Current: typical 35 mA in ON mode with no load. Standby Mode: typical 0.1 mA. Low Dropout Voltage: typical 0.2 V @ IOUT = 100 mA. High Ripple Rejection: typical 70 dB @ f = 1 kHz. Low Temperature-Drift Coefficient of Output Voltage: typical 100 ppm/C. Excellent Line Regulation: typical 0.05%/V. High Accuracy Output Voltage: 2.0%. Fast Dynamic Response to Line and Load. Small Package: SOT-23 5 leads. Built-in Chip Enable circuit (CE input pin). Identical Pinout to the LP2980/1/2. PIN CONNECTIONS VIN GND CE 1 2 3 1 2 3 4 (Top View) 4 N/C 5 VOUT (4 digits are available for device marking) Marking 1 2 K8 F5 F8 G0 G3 J0 3 4 Voltage Version 1.8 V 2.5 V 2.8 V 3.0 V 3.3 V 5.0 V Lot Number DEVICE MARKING MC78PC00 Applications: * Power source for cellular phones (GSM, CDMA, TDMA), Cordless * * Phones (PHS, DECT) and 2-way radios. Power source for domestic appliances such as cameras, VCRs and camcorders. Power source for battery-powered equipment. Block Diagram PIN DESCRIPTION VIN 1 MC78PCxx 5 Pin # VOUT 1 2 3 4 5 Symbol VIN GND CE N/C VOUT Description Input Pin Ground Pin Chip Enable Pin No Connection Output Pin Vref CE 3 CURRENT LIMIT 2 GND ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. (c) Semiconductor Components Industries, LLC, 2001 1 April, 2001 - Rev. 3 Publication Order Number: MC78PC00/D MC78PC00 Series MAXIMUM RATINGS Rating Input Voltage Symbol VIN Value 9.0 Unit V V V AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAA AAA AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA Input Voltage VCE -0.3 ~VIN +0.3 -0.3 ~VIN +0.3 250 Output Voltage VOUT PD TA TJ Power Dissipation mW Operating Temperature Range -40 to +85AAA C +125 +150 C C C Operating Junction Temperature Maximum Junction Temperature Storage Temperature Range TJmax Tstg -55 to +125 ELECTRICAL CHARACTERISTICS (TA = 25C) Characteristic Output Voltage (VIN = VOUT + 1.0 V, IOUT = 30 mA) MC78PC18 MC78PC25 MC78PC28 MC78PC30 MC78PC33 MC78PC50 Nominal Output Current (VIN = VOUT + 1.0 V, VOUT = VOUT(nom) - 0.1 V) Symbol VOUT Min Typ Max Unit V AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA A A A A AAAA A A A AAA A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA IOUT 150 - - - - - - - 2.5 1.5 0 - - - mA mV mA mA Load Regulation (VIN = VOUT + 1.0 V, 1.0 mA IOUT 80 mA) Supply Current in OFF mode, i.e. VCE = GND (VIN = VOUT + 1.0 V, IOUT = 0 mA) Input Voltage Output Voltage Temperature Coefficient (IOUT = 30 mA, -40C TA +85C) Short Circuit Current Limit (VOUT = 0 V) CE Pull-down Resistance CE Input Voltage "H" (ON Mode) CE Input Voltage "L" (OFF Mode) Output Noise Voltage (f = 10 Hz to 100 kHz) DVOUT/DIOUT ISS Istandby RR VIN DVOUT/DT Ilim RPD VIH VIL en 12 35 40 70 Supply Current in ON mode (VIN = VOUT + 1.0 V, IOUT = 0 mA) 0.1 70 - 100 50 5.0 - - 30 1.0 - 8.0 - - 10 VIN 0.25 - Ripple Rejection (f = 1.0 kHz, Ripple 0.5 Vp-p, VIN = VOUT + 1.0 V) dB V ppm/C mA MW V V mVrms 1.764 2.450 2.744 2.94 3.234 4.9 1.80 2.50 2.80 3.00 3.3 5.0 1.836 2.550 2.856 3.06 3.366 5.1 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE VOUT (TA = 25C) Characteristic Symbol VDIF Dropout Voltage (IOUT = 100 mA) 1.8 VOUT 1.9 2.0 VOUT 2.4 2.5 VOUT 2.7 2.8 VOUT 3.3 3.4 VOUT 6.0 Min - - - - - - Typ Max Unit V 0.60 0.35 0.24 0.20 0.17 0.05 1.40 0.70 0.35 0.30 0.26 0.20 Line Regulation (VOUT + 0.5 V VIN 8.0 V, IOUT = 30 mA) DVOUT/DVIN %/V http://onsemi.com 2 MC78PC00 Series OPERATION MC78PC00 1 5 VIN VOUT ERROR AMP. R1 Vref CE 3 CURRENT LIMIT R2 2 GND In the MC78PC00, the output voltage VOUT is detected by R1, R2. The detected output voltage is then compared to the internal voltage reference by the error amplifier. Both a current limiting circuit for short circuit protection, and a chip enable circuit are included. http://onsemi.com 3 MC78PC00 Series TEST CIRCUITS 3 IN 1 VIN 0.1 mF CE 5 VOUT OUT IOUT 2.2 mF IN ISS 0.1 mF 1 VIN 3 CE 5 VOUT OUT IOUT 2.2 mF MC78PCxx Series 2 GND MC78PCxx Series 2 GND Figure 1. Standard Test Circuits Figure 2. Supply Current Test Circuit 3 IN 1 VIN P.G. CE 5 VOUT OUT IOUT 10 mF 1 mF IN 1 VIN 3 CE 5 VOUT 10 mF I1 I2 OUT MC78PCxx Series 2 GND MC78PCxx Series 2 GND Figure 3. Ripple Rejection, Line Transient Response Test Circuit Figure 4. Load Transient Response Test Circuit http://onsemi.com 4 MC78PC00 Series 2.0 VOUT, OUTPUT VOLTAGE (VOLTS) VOUT, OUTPUT VOLTAGE (VOLTS) 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 TA = 25C 0 100 200 300 400 500 VIN = 2.1 V 3.8 V 2.8 V 2.3 V 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0 100 200 300 TA = 25C 400 500 IOUT, OUTPUT CURRENT (mA) 5.0 V 4.0 V 3.5 V VIN = 3.3 V IOUT, OUTPUT CURRENT (mA) Figure 5. MC78PC18 Output Voltage versus Output Current Figure 6. MC78PC30 Output Voltage versus Output Current 4.5 VOUT, OUTPUT VOLTAGE (VOLTS) VOUT, OUTPUT VOLTAGE (VOLTS) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0 100 200 300 TA = 25C 400 500 6.0 V 5.0 V 4.5 V VIN = 4.3 V 6.0 5.0 4.0 3.0 2.0 1.0 0 0 100 200 300 VIN = 5.3 V 7.0 V 6.0 V 5.5 V TA = 25C 400 500 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 7. MC78PC40 (4.0 V) Output Voltage versus Output Current Figure 8. MC78PC50 Output Voltage versus Output Current 2.0 VOUT, OUTPUT VOLTAGE (VOLTS) IOUT = 1 mA VOUT, OUTPUT VOLTAGE (VOLTS) 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.0 30 mA 50 mA 2.0 3.0 4.0 5.0 6.0 VIN, INPUT VOLTAGE (VOLTS) TA = 25C 7.0 8.0 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.0 1.0 mA 30 mA IOUT = 50 mA 3.0 4.0 5.0 6.0 TA = 25C 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) Figure 9. MC78PC18 Output Voltage versus Input Voltage Figure 10. MC78PC30 Output Voltage versus Input Voltage http://onsemi.com 5 MC78PC00 Series 4.5 VOUT, OUTPUT VOLTAGE (VOLTS) VOUT, OUTPUT VOLTAGE (VOLTS) 5.5 5.0 4.5 4.0 3.5 3.0 2.5 30 mA 2.0 3.0 IOUT = 1.0 mA 4.0 3.5 IOUT = 1.0 mA TA = 25C 4.0 5.0 6.0 7.0 8.0 3.0 30 mA 50 mA 2.5 2.0 3.0 50 mA 4.0 5.0 6.0 TA = 25C 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 11. MC78PC40 (4.0 V) Output Voltage versus Input Voltage Figure 12. MC78PC50 Output Voltage versus Input Voltage 1.2 VDIF, DROPOUT VOLTAGE (VOLTS) 1.0 0.8 0.6 0.4 0.2 0 0 50 100 VDIF, DROPOUT VOLTAGE (VOLTS) TA = 85C 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 50 100 TA = 85C 25C -40C 25C -40C 150 150 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 13. MC78PC18 Dropout Voltage versus Output Current Figure 14. MC78PC30 Dropout Voltage versus Output Current 0.40 VDIF, DROPOUT VOLTAGE (VOLTS) VDIF, DROPOUT VOLTAGE (VOLTS) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 50 100 150 -40C TA = 85C 25C 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 50 100 150 -40C TA = 85C 25C IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 15. MC78PC40 (4.0 V) Dropout Voltage versus Output Current Figure 16. MC78PC50 Dropout Voltage versus Output Current http://onsemi.com 6 MC78PC00 Series 1.90 VOUT, OUTPUT VOLTAGE (VOLTS) VOUT, OUTPUT VOLTAGE (VOLTS) 1.88 1.86 1.84 1.82 1.80 1.78 1.76 1.74 1.72 1.70 -50 VIN = 2.8 V IOUT = 30 mA 3.08 3.06 3.05 3.04 3.02 3.00 2.98 2.96 2.94 2.92 2.90 -50 VIN = 4.0 V IOUT = 10 mA -25 0 25 50 75 100 -25 0 25 50 75 100 TA, TEMPERATURE (C) TA, TEMPERATURE (C) Figure 17. MPC78PC18 Output Voltage versus Temperature Figure 18. MC78PC30 Output Voltage versus Temperature 4.10 VOUT, OUTPUT VOLTAGE (VOLTS) VOUT, OUTPUT VOLTAGE (VOLTS) 4.08 4.06 4.04 4.02 4.00 3.98 3.96 3.94 3.92 3.90 -50 VIN = 5.0 V IOUT = 10 mA 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 -50 VIN = 6.0 V IOUT = 10 mA -25 0 25 50 75 100 -25 0 25 50 75 100 TA, TEMPERATURE (C) TA, TEMPERATURE (C) Figure 19. MC78PC40 (4.0 V) Output Voltage versus Temperature Figure 20. MC78PC50 Output Voltage versus Temperature 60 ISS , SUPPLY CURRENT ( m A) ISS , SUPPLY CURRENT ( m A) TA = 25C 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 50 40 30 20 10 0 50 40 30 20 10 TA = 25C 0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 21. MC78PC18 Supply Current versus Input Voltage Figure 22. MC78PC30 Supply Current versus Input Voltage http://onsemi.com 7 MC78PC00 Series 50 ISS , SUPPLY CURRENT ( m A) ISS , SUPPLY CURRENT ( m A) TA = 25C 0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 0 2.0 3.0 4.0 5.0 6.0 40 30 20 10 50 40 30 20 10 TA = 25C 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 23. MC78PC40 (4.0 V) Supply Current versus Input Voltage Figure 24. MC78PC50 Supply Current versus Input Voltage 50 ISS, SUPPLY CURRENT ( m A) ISS, SUPPLY CURRENT (m A) -25 0 25 50 75 100 45 40 35 30 25 20 -50 50 45 40 35 30 25 20 -50 -25 0 25 50 75 100 TA, TEMPERATURE (C) TA, TEMPERATURE (C) Figure 25. MC78PC30 Supply Current versus Temperature Figure 26. MC78PC40 (4.0 V) Supply Current versus Temperature 50 VDIF, DROPOUT VOLTAGE (VOLTS) ISS , SUPPLY CURRENT ( m A) 45 40 35 30 25 20 -50 -25 0 25 50 75 100 0.7 0.6 0.5 IOUT = 150 mA 0.4 100 mA 0.3 0.2 0.1 0 10 mA 2.0 3.0 4.0 50 mA 30 mA TA = 25C 5.0 6.0 TA, TEMPERATURE (C) VOUT, OUTPUT VOLTAGE (VOLTS) Figure 27. MC78PC50 Supply Current versus Temperature Figure 28. Dropout Voltage versus Output Voltage http://onsemi.com 8 MC78PC00 Series 80 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 0.1 VIN = 2.8 VDC + 0.5 Vp-p COUT = 1.0 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 80 70 60 50 40 30 20 10 0 0.1 VIN = 2.8 VDC + 0.5 Vp-p COUT = 1.0 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 f, FREQUENCY (kHz) f, FREQUENCY (kHz) Figure 29. MC78PC18 Ripple Rejection versus Frequency Figure 30. MC78PC18 Ripple Rejection versus Frequency 80 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 0.1 VIN = 4.0 VDC + 0.5 Vp-p COUT = 4.7 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 80 70 60 50 40 30 20 10 0 0.1 VIN = 4.0 VDC + 0.5 Vp-p COUT = 10 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 f, FREQUENCY (kHz) f, FREQUENCY (kHz) Figure 31. MC78PC30 Ripple Rejection versus Frequency Figure 32. MC78PC30 Ripple Rejection versus Frequency 80 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 0.1 VIN = 5.0 VDC + 0.5 Vp-p COUT = 4.7 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 80 70 60 50 40 30 20 10 0 0.1 VIN = 5.0 VDC + 0.5 Vp-p COUT = 10 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 f, FREQUENCY (kHz) f, FREQUENCY (kHz) Figure 33. MC78PC40 (4.0 V) Ripple Rejection versus Frequency Figure 34. MC78PC40 (4.0 V) Ripple Rejection versus Frequency http://onsemi.com 9 MC78PC00 Series 80 RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 0.1 VIN = 6.0 VDC + 0.5 Vp-p COUT = 4.7 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 f, FREQUENCY (kHz) Figure 35. MC78PC50 Ripple Rejection versus Frequency 80 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 0.1 VIN = 6.0 VDC + 0.5 Vp-p COUT = 10 mF 1.0 10 IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 100 80 70 60 50 40 30 20 10 0 3.1 3.2 3.3 f = 400 Hz f = 1.0 kHz f = 10 kHz 3.4 3.5 IOUT = 1.0 mA COUT = 10 mF f, FREQUENCY (kHz) VIN, INPUT VOLTAGE (VOLTS) Figure 36. MC78PC50 Ripple Rejection versus Frequency Figure 37. MC78PC30 Ripple Rejection versus Input Voltage (DC Bias) 80 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 3.1 3.2 3.3 f = 400 Hz f = 1.0 kHz f = 10 kHz 3.4 3.5 IOUT = 10 mA COUT = 10 mF 80 70 60 50 40 30 20 10 0 3.1 IOUT = 50 mA COUT = 10 mF f = 400 Hz f = 1.0 kHz f = 10 kHz 3.2 3.3 3.4 3.5 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 38. MC78PC30 Ripple Rejection versus Input Voltage (DC Bias) Figure 39. MC78PC30 Ripple Rejection versus Input Voltage (DC Bias) http://onsemi.com 10 MC78PC00 Series 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 3.2 3.1 3.0 2.9 2.8 0 20 40 60 t, TIME (ms) OUTPUT VOLTAGE tr = tf = 5.0 ms COUT = 4.7 mF (TANTALUM) IOUT = 30 mA 80 100 INPUT VOLTAGE 6.0 5.0 4.0 3.0 2.0 1.0 0 120 V IN, INPUT VOLTAGE (VOLTS) 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 3.2 INPUT VOLTAGE 6.0 5.0 4.0 3.0 OUTPUT VOLTAGE tr = tf = 5.0 ms COUT = 6.8 mF (TANTALUM) IOUT = 30 mA 0 20 40 60 t, TIME (ms) 80 100 2.0 1.0 0 120 V IN, INPUT VOLTAGE (VOLTS) 3.1 3.0 2.9 2.8 Figure 40. MC78PC30 Line Transient Response Figure 41. MC78PC30 Line Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 3.2 INPUT VOLTAGE 6.0 5.0 4.0 3.0 OUTPUT VOLTAGE tr = tf = 5.0 ms COUT = 10 mF (TANTALUM) IOUT = 30 mA 0 20 40 60 t, TIME (ms) 80 100 120 2.0 1.0 0 V IN, INPUT VOLTAGE (VOLTS) 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 3.2 OUTPUT CURRENT 150 100 50 0 OUTPUT VOLTAGE -50 CIN = 1.0 mf (TANTALUM) COUT = 4.7 mF (TANTALUM) VIN = 4.0 V 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20 t, TIME (ms) IOUT, OUTPUT CURRENT (mA) 3.1 3.0 2.9 3.1 3.0 2.9 -100 -150 2.8 2.8 Figure 42. MC78PC30 Line Transient Response Figure 43. MC78PC30 Load Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 3.2 OUTPUT CURRENT 150 100 50 0 OUTPUT VOLTAGE -50 CIN = 1.0 mf (TANTALUM) COUT = 6.8 mF (TANTALUM) VIN = 4.0 V 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20 t, TIME (ms) IOUT, OUTPUT CURRENT (mA) 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 3.2 3.1 3.0 2.9 2.8 0 2.0 4.0 6.0 8.0 10 OUTPUT CURRENT 150 100 50 0 OUTPUT VOLTAGE -50 CIN = 1.0 mf (TANTALUM) COUT = 10 mF (TANTALUM) VIN = 4.0 V 12 14 16 18 20 t, TIME (ms) IOUT, OUTPUT CURRENT (mA) 3.1 3.0 2.9 -100 -150 -100 -150 2.8 Figure 44. MC78PC30 Load Transient Response Figure 45. MC78PC30 Load Transient Response http://onsemi.com 11 MC78PC00 Series APPLICATION HINTS When using these circuits, please be sure to observe the following points: * Phase compensation is made for securing stable operation even if the load current varies. For this reason, be sure to use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance) as described in the graphs on page 11. On page 11, the relations between IOUT (Output Current) and ESR of Output Capacitor are shown. The conditions where the white noise level is under 40 mV (Avg.) are marked by the shaded area in the graph. (note: When additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase compensation, there is a possibility that the operation will be unstable. Because of this, test these circuits with as same external components as ones to be used on the PCB). 3 1 VIN 4.0 V CERAMIC CAPACITOR 1.0 mF 2 CE 5 VOUT GND ESR CERAMIC CAPACITOR IOUT S.A. SPECTRUM ANALYSER MEASURING CONDITIONS: (1) FREQUENCY RANGE: 10 Hz TO 1.0 MHz MEASURING CONDITIONS: (2) TEMPERATURE: 25C Figure 46. Measuring Circuit for White Noise: MC78PC30 * Please be sure the Vin and GND lines are sufficiently wide. When the impedance of these lines is high, there is a chance to pick up noise or to malfunction. * Connect the capacitor with a capacitance of 1.0 mF or more between Vin and GND as close as possible to Vin or GND. * Set external components, especially the Output Capacitor, as close as possible to the circuit, and make the wiring as short as possible. CE IN + CAP. VIN MC78PCxx VOUT + CAP. OUT GND Figure 47. Typical Application http://onsemi.com 12 MC78PC00 Series 100 100 10 ESR (W ) ESR (W ) 1.0 10 1.0 0.1 0 50 100 150 0.1 0 50 100 150 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 48. Ceramic Capacitor 4.7 mF Figure 49. Ceramic Capacitor 6.8 mF 100 10 ESR (W ) 1.0 0.1 0 50 100 150 IOUT, OUTPUT CURRENT (mA) Figure 50. Ceramic Capacitor 10 mF http://onsemi.com 13 MC78PC00 Series TAPE AND REEL INFORMATION Component Taping Orientation for 5L SOT-23 Devices USER DIRECTION OF FEED DEVICE MARKING PIN 1 Standard Reel Component Orientation for TR Suffix Device (Mark Right Side Up) Tape & Reel Specifications Table Package 5L SOT-23 Tape Width (W) 8 mm Pitch (P) 4 mm Part Per Full Reel 3000 Reel Diameter 7 inches ORDERING INFORMATION Device MC78PC18NTR MC78PC25NTR MC78PC28NTR MC78PC30NTR MC78PC33NTR MC78PC50NTR Other voltages are available. Consult your ON Semiconductor representative. SOT 23 SOT-23 5 Leads 3000 Units/Tape & Reel Package Shipping http://onsemi.com 14 MC78PC00 Series PACKAGE DIMENSIONS SOT-23-5 N SUFFIX PLASTIC PACKAGE CASE 1212-01 ISSUE O NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DATUM C IS A SEATING PLANE. DIM A1 A2 B C D E E1 e e1 L L1 MILLIMETERS MIN MAX 0.00 0.10 1.00 1.30 0.30 0.50 0.10 0.25 2.80 3.00 2.50 3.10 1.50 1.80 0.95 BSC 1.90 BSC 0.20 --0.45 0.75 A 5 1 D 4 2 3 B A2 0.05 S A1 L E E1 L1 e e1 B 5X C M 0.10 CB S A S C Recommended Footprint for SOT-23-5 Surface Mount Applications 0.7 MAX. 1.0 2.4 0.95 1.9 0.95 (Unit: mm) SOT-23-5 http://onsemi.com 15 MC78PC00 Series ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION NORTH AMERICA Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com Fax Response Line: 303-675-2167 or 800-344-3810 Toll Free USA/Canada N. American Technical Support: 800-282-9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor - European Support German Phone: (+1) 303-308-7140 (Mon-Fri 2:30pm to 7:00pm CET) Email: ONlit-german@hibbertco.com French Phone: (+1) 303-308-7141 (Mon-Fri 2:00pm to 7:00pm CET) Email: ONlit-french@hibbertco.com English Phone: (+1) 303-308-7142 (Mon-Fri 12:00pm to 5:00pm GMT) Email: ONlit@hibbertco.com EUROPEAN TOLL-FREE ACCESS*: 00-800-4422-3781 *Available from Germany, France, Italy, UK, Ireland CENTRAL/SOUTH AMERICA: Spanish Phone: 303-308-7143 (Mon-Fri 8:00am to 5:00pm MST) Email: ONlit-spanish@hibbertco.com Toll-Free from Mexico: Dial 01-800-288-2872 for Access - then Dial 866-297-9322 ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 1-303-675-2121 (Tue-Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong & Singapore: 001-800-4422-3781 Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-0031 Phone: 81-3-5740-2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 16 MC78PC00/D |
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