MC78PC00

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 PIN CONNECTIONS VIN GND CE 1 2 3 1 2 3 4 (Top View) 4 N/C 5 VOUT • • • • • • • • • • • 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. DEVICE MARKING (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 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 1 PINS DESCRIPTION Pin # 1 2 3 4 5 Symbol VIN GND CE N/C VOUT Description Input Pin Ground Pin Chip Enable Pin No Connection Output Pin MC78PCxx VIN 5 VOUT ORDERING INFORMATION Device MC78PC18NTR MC78PC25NTR MC78PC28NTR MC78PC30NTR SOT–23 5 Leads 3000 Units Tape & Reel Package Shipping Vref 3 CE CURRENT LIMIT 2 GND MC78PC33NTR MC78PC50NTR Other voltages are available. Consult your ON Semiconductor representative. Publication Order Number: MC78PC00/D © Semiconductor Components Industries, LLC, 1999 1 October, 1999 – Rev. 2 MC78PC00 Series MAXIMUM RATINGS Rating Input Voltage Input Voltage Symbol VIN Value 9.0 Unit V V V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ Á Á ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ VCE –0.3 ~VIN +0.3 –0.3 ~VIN +0.3 250 Output Voltage VOUT PD TA TJ Power Dissipation mW °C °C °C °C Operating Temperature Range –40 to +85 +125 +150 Operating Junction Temperature Maximum Junction Temperature Storage Temperature Range TJmax Tstg –55 to +125 ELECTRICAL CHARACTERISTICS (TA = 25°C) Characteristic Symbol VOUT Min Typ Max Unit V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ Á Á Á Á ÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁ Á Á Á Á ÁÁÁÁ Á ÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Nominal Output Current (VIN = VOUT + 1.0 V, VOUT = VOUT(nom) – 0.1 V) IOUT 150 – – – – – – – 2.5 1.5 0 – – – mA mV 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, –40°C ≤ TA ≤ +85°C) 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) Output Voltage (VIN = VOUT + 1.0 V, IOUT = 30 mA) MC78PC18 MC78PC25 MC78PC28 MC78PC30 MC78PC33 MC78PC50 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 DVOUT/DIOUT ISS Istandby RR 12 35 40 70 Supply Current in ON mode (VIN = VOUT + 1.0 V, IOUT = 0 mA) 0.1 70 – 1.0 – 8.0 – – 10 mA mA V Ripple Rejection (f = 1.0 kHz, Ripple 0.5 Vp–p, VIN = VOUT + 1.0 V) dB ppm/°C mA MW V V DVOUT/DT Ilim RPD VIH VIL en VIN ±100 50 5.0 – – 30 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á – VIN 0.25 mVrms ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE VOUT (TA = 25°C) 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 VOUT VIN ERROR AMP. R1 Vref 3 CE 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 Figure 1. Standard Test Circuits Figure 2. Supply Current Test Circuit 3 IN CE 5 VOUT OUT IOUT 2.2 mF IN ISS 0.1 mF 3 CE 5 VOUT OUT IOUT 2.2 mF 1 VIN MC78PCxx Series 2 GND 1 VIN MC78PCxx Series 2 GND 0.1 mF Figure 3. Ripple Rejection, Line Transient Response Test Circuit 3 IN CE 5 VOUT OUT IOUT 10 mF 1 mF IN Figure 4. Load Transient Response Test Circuit 3 CE 5 VOUT 10 mF I1 I2 OUT 1 VIN MC78PCxx Series 2 GND 1 VIN MC78PCxx Series 2 GND P.G. http://onsemi.com 4 MC78PC00 Series Figure 5. MC78PC18 Output Voltage versus Output Current 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 0 100 200 300 TA = 25°C 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 0 100 200 300 400 500 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) TA = 25°C 3.5 V VIN = 3.3 V 5.0 V 4.0 V Figure 6. MC78PC30 Output Voltage versus Output Current Figure 7. MC78PC40 (4.0 V) 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 0 100 200 300 400 500 IOUT, OUTPUT CURRENT (mA) TA = 25°C VIN = 4.3 V 6.0 V 5.0 V 4.5 V 6.0 5.0 4.0 3.0 2.0 1.0 0 0 Figure 8. MC78PC50 Output Voltage versus Output Current 7.0 V 6.0 V 5.5 V VIN = 5.3 V TA = 25°C 100 200 300 400 500 IOUT, OUTPUT CURRENT (mA) Figure 9. MC78PC18 Output Voltage versus Input Voltage 2.0 VOUT, OUTPUT VOLTAGE (VOLTS) 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) 30 mA 50 mA TA = 25°C IOUT = 1 mA VOUT, OUTPUT VOLTAGE (VOLTS) 3.1 3.0 2.9 2.8 Figure 10. MC78PC30 Output Voltage versus Input Voltage 1.0 mA 2.7 30 mA 2.6 IOUT = 50 mA 2.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) TA = 25°C http://onsemi.com 5 MC78PC00 Series Figure 11. MC78PC40 (4.0 V) Output Voltage versus Input Voltage 4.5 VOUT, OUTPUT VOLTAGE (VOLTS) VOUT, OUTPUT VOLTAGE (VOLTS) 5.5 5.0 4.5 4.0 IOUT = 1.0 mA 3.5 3.0 2.5 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) 30 mA 2.0 3.0 4.0 5.0 6.0 VIN, INPUT VOLTAGE (VOLTS) TA = 25°C 7.0 8.0 Figure 12. MC78PC50 Output Voltage versus Input Voltage 4.0 3.5 IOUT = 1.0 mA TA = 25°C 3.0 30 mA 50 mA 2.5 2.0 3.0 50 mA Figure 13. MC78PC18 Dropout Voltage versus Output Current 1.2 VDIF, DROPOUT VOLTAGE (VOLTS) 1.0 0.8 0.6 0.4 0.2 0 0 50 100 150 IOUT, OUTPUT CURRENT (mA) 25°C –40°C VDIF, DROPOUT VOLTAGE (VOLTS) TA = 85°C 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 Figure 14. MC78PC30 Dropout Voltage versus Output Current TA = 85°C 25°C –40°C 0 50 100 150 IOUT, OUTPUT CURRENT (mA) Figure 15. MC78PC40 (4.0 V) Dropout Voltage versus Output Current 0.40 VDIF, DROPOUT VOLTAGE (VOLTS) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 50 100 150 IOUT, OUTPUT CURRENT (mA) –40°C 25°C VDIF, DROPOUT VOLTAGE (VOLTS) TA = 85°C 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 Figure 16. MC78PC50 Dropout Voltage versus Output Current TA = 85°C 25°C –40°C 50 100 150 IOUT, OUTPUT CURRENT (mA) http://onsemi.com 6 MC78PC00 Series Figure 17. MPC78PC18 Output Voltage versus Temperature 1.90 VOUT, OUTPUT VOLTAGE (VOLTS) 1.86 1.84 1.82 1.80 1.78 1.76 1.74 1.72 1.70 –50 VOUT, OUTPUT VOLTAGE (VOLTS) 1.88 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 Figure 18. MC78PC30 Output Voltage versus Temperature –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 4.10 VOUT, OUTPUT VOLTAGE (VOLTS) 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 VOUT, OUTPUT VOLTAGE (VOLTS) 4.08 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 –50 Figure 20. MC78PC50 Output Voltage versus Temperature 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 21. MC78PC18 Supply Current versus Input Voltage 60 ISS , SUPPLY CURRENT ( m A) ISS , SUPPLY CURRENT ( m A) 50 40 30 20 10 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) TA = 25°C 0 2.0 50 40 30 20 10 Figure 22. MC78PC30 Supply Current versus Input Voltage TA = 25°C 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) http://onsemi.com 7 MC78PC00 Series Figure 23. MC78PC40 (4.0 V) Supply Current versus Input Voltage 50 40 30 20 10 TA = 25°C 0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) 0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) ISS , SUPPLY CURRENT ( m A) ISS , SUPPLY CURRENT ( m A) 50 40 30 20 10 TA = 25°C Figure 24. MC78PC50 Supply Current versus Input Voltage Figure 25. MC78PC30 Supply Current versus Temperature 50 ISS, SUPPLY CURRENT ( m A) ISS, SUPPLY CURRENT (m A) 45 40 35 30 25 20 –50 50 45 40 35 30 25 20 –50 Figure 26. MC78PC40 (4.0 V) Supply Current versus Temperature –25 0 25 50 75 100 –25 0 25 50 75 100 TA, TEMPERATURE (°C) TA, TEMPERATURE (°C) Figure 27. MC78PC50 Supply Current versus Temperature 50 VDIF, DROPOUT VOLTAGE (VOLTS) ISS , SUPPLY CURRENT ( m A) 45 40 35 30 25 20 –50 0.7 0.6 0.5 0.4 100 mA 0.3 0.2 0.1 0 10 mA 2.0 50 mA Figure 28. Dropout Voltage versus Output Voltage IOUT = 150 mA TA = 25°C 30 mA –25 0 25 50 75 100 3.0 4.0 5.0 6.0 TA, TEMPERATURE (°C) VOUT, OUTPUT VOLTAGE (VOLTS) http://onsemi.com 8 MC78PC00 Series Figure 29. MC78PC18 Ripple Rejection versus Frequency 80 70 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 60 50 40 30 20 10 0 0.1 1.0 10 100 f, FREQUENCY (kHz) VIN = 2.8 VDC + 0.5 Vp–p COUT = 1.0 mF IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 80 70 60 50 40 30 20 10 0 0.1 1.0 10 100 f, FREQUENCY (kHz) VIN = 2.8 VDC + 0.5 Vp–p COUT = 1.0 mF IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA Figure 30. MC78PC18 Ripple Rejection versus Frequency Figure 31. MC78PC30 Ripple Rejection versus Frequency 80 70 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 60 50 40 30 20 10 0 0.1 1.0 10 100 f, FREQUENCY (kHz) VIN = 4.0 VDC + 0.5 Vp–p COUT = 4.7 mF IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 80 70 60 50 40 30 20 10 0 0.1 Figure 32. MC78PC30 Ripple Rejection versus Frequency 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) Figure 33. MC78PC40 (4.0 V) Ripple Rejection versus Frequency 80 70 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 60 50 40 30 20 10 0 0.1 1.0 10 100 f, FREQUENCY (kHz) VIN = 5.0 VDC + 0.5 Vp–p COUT = 4.7 mF IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 80 70 60 50 40 30 20 10 0 0.1 Figure 34. MC78PC40 (4.0 V) Ripple Rejection versus Frequency 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) http://onsemi.com 9 MC78PC00 Series Figure 35. MC78PC50 Ripple Rejection versus Frequency 80 70 RR, RIPPLE REJECTION (dB) 60 50 40 30 20 10 0 0.1 1.0 10 100 f, FREQUENCY (kHz) VIN = 6.0 VDC + 0.5 Vp–p COUT = 4.7 mF IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA Figure 36. MC78PC50 Ripple Rejection versus Frequency 80 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 0.1 1.0 10 100 f, FREQUENCY (kHz) VIN = 6.0 VDC + 0.5 Vp–p COUT = 10 mF IOUT = 1.0 mA IOUT = 30 mA IOUT = 50 mA 80 70 60 50 40 30 20 10 0 3.1 Figure 37. MC78PC30 Ripple Rejection versus Input Voltage (DC Bias) IOUT = 1.0 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) Figure 38. 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 3.4 3.5 VIN, INPUT VOLTAGE (VOLTS) f = 400 Hz f = 1.0 kHz f = 10 kHz IOUT = 10 mA COUT = 10 mF 80 70 60 50 40 30 20 10 0 3.1 Figure 39. MC78PC30 Ripple Rejection versus Input Voltage (DC Bias) 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) http://onsemi.com 10 MC78PC00 Series Figure 40. MC78PC30 Line Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 INPUT VOLTAGE 3.2 3.1 OUTPUT VOLTAGE 3.0 2.9 2.8 0 20 40 60 t, TIME (ms) tr = tf = 5.0 ms COUT = 4.7 mF (TANTALUM) IOUT = 30 mA 80 100 6.0 5.0 4.0 3.0 2.0 1.0 0 120 V IN, INPUT VOLTAGE (VOLTS) Figure 41. MC78PC30 Line Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 INPUT VOLTAGE 3.2 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 42. MC78PC30 Line Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 INPUT VOLTAGE 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 = 10 mF (TANTALUM) IOUT = 30 mA 80 100 120 6.0 5.0 4.0 3.0 2.0 1.0 0 V IN, INPUT VOLTAGE (VOLTS) Figure 43. MC78PC30 Load Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 OUTPUT CURRENT 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) 3.2 150 100 IOUT, OUTPUT CURRENT (mA) 3.1 3.0 2.9 –100 –150 2.8 Figure 44. MC78PC30 Load Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 OUTPUT CURRENT 3.2 3.1 3.0 2.9 2.8 0 2.0 4.0 6.0 8.0 10 50 0 OUTPUT VOLTAGE –50 CIN = 1.0 mf (TANTALUM) COUT = 6.8 mF (TANTALUM) VIN = 4.0 V 12 14 16 18 20 t, TIME (ms) 150 100 IOUT, OUTPUT CURRENT (mA) 11 Figure 45. MC78PC30 Load Transient Response 3.4 VOUT, OUTPUT VOLTAGE (VOLTS) 3.3 OUTPUT CURRENT 50 0 OUTPUT VOLTAGE –50 3.2 3.1 3.0 2.9 2.8 0 2.0 4.0 6.0 8.0 150 100 IOUT, OUTPUT CURRENT (mA) –100 –150 CIN = 1.0 mf (TANTALUM) COUT = 10 mF (TANTALUM) –100 VIN = 4.0 V –150 14 16 18 20 10 12 t, TIME (ms) http://onsemi.com 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). Figure 46. Measuring Circuit for White Noise: MC78PC30 3 CE 5 VOUT SPECTRUM ANALYSER 1 VIN 4.0 V CERAMIC CAPACITOR 1.0 mF 2 GND CERAMIC CAPACITOR ESR S.A. IOUT MEASURING CONDITIONS: (1) FREQUENCY RANGE: 10 Hz TO 1.0 MHz MEASURING CONDITIONS: (2) TEMPERATURE: 25°C • 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. Figure 47. Typical Application CE IN + CAP. VIN MC78PCxx VOUT + CAP. OUT GND http://onsemi.com 12 MC78PC00 Series Figure 48. Ceramic Capacitor 4.7 mF 100 100 Figure 49. Ceramic Capacitor 6.8 mF 10 ESR (W ) ESR (W ) 1.0 10 1.0 0.1 0 50 100 150 IOUT, OUTPUT CURRENT (mA) 0.1 0 50 100 150 IOUT, OUTPUT CURRENT (mA) Figure 50. Ceramic Capacitor 10 mF 100 10 ESR (W ) 1.0 0.1 0 50 100 150 IOUT, OUTPUT CURRENT (mA) 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 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. 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 D B A2 0.05 S A1 L E 5 1 2 4 3 E1 L1 e e1 B 5X C M 0.10 CB S A S C DIM A1 A2 B C D E E1 e e1 L L1 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. 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PUBLICATION ORDERING INFORMATION USA/EUROPE 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 800–344–3810 Toll Free USA/Canada *To receive a Fax of our publications ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time) Email: ONlit–asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549 Phone: 81–3–5487–8345 Email: r14153@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. N. America Technical Support: 800–282–9855 Toll Free USA/Canada http://onsemi.com 16 MC78PC00/D