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 http://onsemi.com an internal voltage reference, an error amplifier, resistors, a current limiting circuit and a chip enable circuit. 5 The dynamic Response to line and load is fast, which makes these 1 products ideally suited for use in hand−held communication equipment. The MC78PC00 series are housed in the SOT−23 5 lead SOT−23−5 package, for maximum board space saving. N SUFFIX MC78PC00 Features: CASE 1212 • Ultra−Low Supply Current: typical 35 (cid:2)A in ON mode with no load. • Standby Mode: typical 0.1 (cid:2)A. PIN CONNECTIONS • Low Dropout Voltage: typical 0.2 V @ I = 100 mA. OUT • High Ripple Rejection: typical 70 dB @ f = 1 kHz. VIN 1 1 5 VOUT • 2 Low Temperature−Drift Coefficient of Output Voltage: GND 2 3 typical ±100 ppm/°C. • CE 3 4 4 N/C Excellent Line Regulation: typical 0.05%/V. • High Accuracy Output Voltage: ±2.0%. (Top View) • Fast Dynamic Response to Line and Load. • Small Package: SOT−23 5 leads. DEVICE MARKING • (4 digits are available for device marking) Built−in Chip Enable circuit (CE input pin). Marking Voltage Version • Identical Pinout to the LP2980/1/2. • 1 2 K8 1.8 V Pb−Free Packages are Available F5 2.5 V MC78PC00 Applications: • F8 2.8 V Power source for cellular phones (GSM, CDMA, TDMA), Cordless G0 3.0 V Phones (PHS, DECT) and 2−way radios. • G3 3.3 V Power source for domestic appliances such as cameras, VCRs and J0 5.0 V camcorders. • 3 4 Lot Number Power source for battery−powered equipment. Block Diagram MC78PCxx PIN DESCRIPTION 1 5 VIN VOUT Pin # Symbol Description 1 VIN Input Pin 2 GND Ground Pin 3 CE Chip Enable Pin 4 N/C No Connection 5 VOUT Output Pin Vref CURRENT LIMIT ORDERING INFORMATION 3 2 CE GND See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. © Semiconductor Components Industries, LLC, 2005 1 Publication Order Number: June, 2005 − Rev. 6 MC78PC00/D

MC78PC00 Series MAXIMUM RATINGS Rating Symbol Value Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Input Voltage VIN 9.0 V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Input Voltage VCE −0.3 ~VIN +0.3 V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Voltage VOUT −0.3 ~VIN +0.3 V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Dissipation PD 250 mW ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Operating Temperature Range TA −40 to +85 °C ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Operating Junction Temperature TJ +125 °C ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximum Junction Temperature TJmax +150 °C ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range Tstg −55 to +125 °C ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 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 (TA = 25°C) ÁÁÁÁÁÁÁÁChÁaracÁterisÁticÁÁÁÁÁÁÁÁÁSyÁmbÁol ÁÁÁMÁin ÁÁÁTyÁp ÁÁÁMaÁx ÁÁÁUniÁt ÁÁOuÁtput ÁVoltaÁge Á(VIN Á= VOÁUT +Á 1.0Á V, IÁOUT Á= 30Á mAÁ) ÁÁÁÁÁÁVÁOUTÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVÁ MC78PC18 1.764 1.80 1.836 MC78PC25 2.450 2.50 2.550 MC78PC28 2.744 2.80 2.856 MC78PC30 2.94 3.00 3.06 MC78PC33 3.234 3.3 3.366 ÁÁMÁC78ÁPC5Á0 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ4Á.9 ÁÁÁ5Á.0 ÁÁÁ5.Á1 ÁÁÁÁ ÁÁNoÁminaÁl OuÁtputÁ CurÁrentÁÁÁÁÁÁÁÁÁÁÁÁÁÁIOUTÁÁÁÁ1Á50 ÁÁÁ−ÁÁÁÁ−ÁÁÁÁmAÁ (VIN = VOUT + 1.0 V, VOUT = VOUT(nom) − 0.1 V) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Load Regulation (VIN = VOUT + 1.0 V, 1.0 mA ≤ IOUT ≤ 80 mA) (cid:3)VOUT/(cid:3)IOUT − 12 40 mV ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Supply Current in ON mode (VIN = VOUT + 1.0 V, IOUT = 0 mA) ISS − 35 70 (cid:2)A Supply Current in OFF mode, i.e. VCE = GND Istandby − 0.1 1.0 (cid:2)A (VIN = VOUT + 1.0 V, IOUT = 0 mA) Ripple Rejection (f = 1.0 kHz, Ripple 0.5 Vp−p, VIN = VOUT + 1.0 V) RR − 70 − dB Input Voltage VIN − − 8.0 V Output Voltage Temperature Coefficient (cid:3)VOUT/(cid:3)T − ±100 − ppm/°C (IOUT = 30 mA, −40°C ≤ TA ≤ +85°C) Short Circuit Current Limit (VOUT = 0 V) Ilim − 50 − mA CE Pull−down Resistance RPD 2.5 5.0 10 M(cid:4) CE Input Voltage “H” (ON Mode) VIH 1.5 − VIN V ÁÁCEÁ InpÁut VoÁltagÁe “L”Á (OFÁF MÁode)ÁÁÁÁÁÁÁÁÁÁÁÁVILÁÁÁÁÁ0 ÁÁÁ−ÁÁÁÁ0.2Á5 ÁÁÁVÁ ÁÁOuÁtput ÁNoisÁe VoÁltagÁe (f =Á 10 ÁHz tÁo 10Á0 kHÁz) ÁÁÁÁÁÁÁÁÁenÁÁÁÁÁ− ÁÁÁ3Á0 ÁÁÁ−ÁÁÁÁ(cid:2)VrmÁs ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE VOUT (TA = 25°C) Characteristic Symbol Min Typ Max Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Dropout Voltage (IOUT = 100 mA) VDIF V ÁÁ1.Á8 ≤ VÁOUTÁ ≤ 1Á.9 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ− ÁÁÁ0.Á60 ÁÁÁ1.4Á0 ÁÁÁÁ 2.0 ≤ VOUT ≤ 2.4 − 0.35 0.70 2.5 ≤ VOUT ≤ 2.7 − 0.24 0.35 2.8 ≤ VOUT ≤ 3.3 − 0.20 0.30 ÁÁ3.Á4 ≤ VÁOUTÁ ≤ 6Á.0 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ− ÁÁÁ0.Á17 ÁÁÁ0.2Á6 ÁÁÁÁ ÁÁLinÁe ReÁgulaÁtionÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ(cid:3)VOÁUT/(cid:3)ÁVINÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ%/VÁ (VOUT + 0.5 V ≤ VIN ≤ 8.0 V, IOUT = 30 mA) − 0.05 0.20 http://onsemi.com 2

MC78PC00 Series OPERATION MC78PC00 1 5 VIN VOUT ERROR AMP. R1 Vref CURRENT LIMIT R2 3 2 CE GND In the MC78PC00, the output voltage V is detected by R1, R2. The detected output voltage is then compared to the OUT 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 CE 3 CE IN 1 MC78PCxx 5 OUT IN 1 MC78PCxx 5 OUT Series Series VIN VOUT IOUT ISS VIN VOUT IOUT 0.1 (cid:2)F 2.2 (cid:2)F 0.1 (cid:2)F 2.2 (cid:2)F 2 GND 2 GND Figure 1. Standard Test Circuits Figure 2. Supply Current Test Circuit 3 CE 3 CE IN 1 MC78PCxx 5 OUT IN 1 MC78PCxx 5 OUT Series Series VIN VOUT IOUT VIN VOUT P.G. 10 (cid:2)F 1 (cid:2)F 10 (cid:2)F 2 GND 2 GND I1 I2 Figure 3. Ripple Rejection, Line Figure 4. Load Transient Response Transient Response Test Circuit Test Circuit http://onsemi.com 4

MC78PC00 Series 2.0 3.5 VOLTS) 11..68 3.8 V 2.8 V VOLTS) 3.0 5.0 V 4.0 V E ( 1.4 E ( 2.5 G G A 1.2 A 3.5 V LT 2.3 V LT 2.0 T VO 1.0 T VO 1.5 VIN = 3.3 V U 0.8 U P P T T OU 0.6 VIN = 2.1 V OU 1.0 , T 0.4 , T U U VO 0.2 TA = 25°C VO 0.5 TA = 25°C 0 0 0 100 200 300 400 500 0 100 200 300 400 500 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 5. MC78PC18 Output Voltage versus Figure 6. MC78PC30 Output Voltage versus Output Current Output Current 4.5 6.0 6.0 V TS) 4.0 TS) 5.0 7.0 V L L O 3.5 O E (V 3.0 5.0 V E (V 4.0 6.0 V G G A 4.5 V A T VOLT 22..50 VIN = 4.3 V T VOLT 3.0 VIN = 5.3 V 5.5 V U U P P T 1.5 T 2.0 U U O O , T 1.0 , T U U 1.0 VO 0.5 TA = 25°C VO TA = 25°C 0 0 0 100 200 300 400 500 0 100 200 300 400 500 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 7. MC78PC40 (4.0 V) Output Voltage Figure 8. MC78PC50 Output Voltage versus versus Output Current Output Current 2.0 3.1 S) 1.9 S) OLT IOUT = 1 mA OLT 3.0 V 1.8 V GE ( GE ( 2.9 A 1.7 A T T L L O O V 1.6 V 2.8 T T PU 1.5 PU 1.0 mA UT UT 2.7 V, OOUT 11..43 5300 mmAA TA = 25°C V, OOUT 2.6 3I0O UmTA = 50 mA TA = 25°C 1.2 2.5 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 9. MC78PC18 Output Voltage versus Figure 10. MC78PC30 Output Voltage versus Input Voltage Input Voltage http://onsemi.com 5

MC78PC00 Series 4.5 5.5 S) S) LT LT 5.0 O O V 4.0 V GE ( GE ( 4.5 A A T T L L O O V 3.5 V 4.0 T T PU PU IOUT = 1.0 mA OUT IOUT = OUT 3.5 , T 3.0 1.0 mA , T VOU 30 mA TA = 25°C VOU 3.0 50 mA TA = 25°C 2.5 50 mA 2.5 30 mA 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 11. MC78PC40 (4.0 V) Output Voltage Figure 12. MC78PC50 Output Voltage versus versus Input Voltage Input Voltage 1.2 0.40 S) TA = 85°C S) 0.35 TA = 85°C LT 1.0 LT VO VO 0.30 25°C GE ( 0.8 GE ( TA TA 0.25 −40°C L L O O T V 0.6 25°C T V 0.20 U U O O 0.15 OP 0.4 −40°C OP DR DR 0.10 , F 0.2 , F DI DI 0.05 V V 0 0 0 50 100 150 0 50 100 150 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 13. MC78PC18 Dropout Voltage versus Figure 14. MC78PC30 Dropout Voltage versus Output Current Output Current 0.40 0.40 GE (VOLTS) 00..3350 TA =2 855°°CC GE (VOLTS) 00..3350 TA = 85°C A 0.25 A 0.25 25°C OLT OLT V 0.20 V 0.20 T T POU 0.15 −40°C POU 0.15 −40°C O O DR 0.10 DR 0.10 , F , F DI0.05 DI 0.05 V V 0 0 0 50 100 150 0 50 100 150 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 15. MC78PC40 (4.0 V) Dropout Voltage Figure 16. MC78PC50 Dropout Voltage versus versus Output Current Output Current http://onsemi.com 6

MC78PC00 Series 1.90 3.08 S) 1.88 VIN = 2.8 V S) 3.06 VIN = 4.0 V OLT 1.86 IOUT = 30 mA OLT 3.05 IOUT = 10 mA V V E ( 1.84 E ( 3.04 G G A 1.82 A 3.02 T T L L VO 1.80 VO 3.00 T T U 1.78 U 2.98 P P T T U 1.76 U 2.96 O O , T1.74 , T2.94 U U O O V 1.72 V 2.92 1.70 2.90 −50 −25 0 25 50 75 100 −50 −25 0 25 50 75 100 TA, TEMPERATURE (°C) TA, TEMPERATURE (°C) Figure 17. MPC78PC18 Output Voltage Figure 18. MC78PC30 Output versus Temperature Voltage versus Temperature 4.10 5.10 TS) 4.08 VIN = 5.0 V TS) 5.08 VIN = 6.0 V OL 4.06 IOUT = 10 mA OL 5.06 IOUT = 10 mA V V E ( 4.04 E ( 5.04 G G A 4.02 A 5.02 T T L L VO 4.00 VO 5.00 T T U 3.98 U 4.98 P P T T U 3.96 U 4.96 O O , T3.94 , T4.94 U U O O V 3.92 V 4.92 3.90 4.90 −50 −25 0 25 50 75 100 −50 −25 0 25 50 75 100 TA, TEMPERATURE (°C) TA, TEMPERATURE (°C) Figure 19. MC78PC40 (4.0 V) Output Figure 20. MC78PC50 Output Voltage versus Temperature Voltage versus Temperature 60 50 A) 50 A) 40 (cid:2)T ( (cid:2)T ( N 40 N E E R R 30 R R U U C 30 C Y Y PL PL 20 UP 20 UP S S I, SS 10 TA = 25°C I, SS 10 TA = 25°C 0 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 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 Figure 22. MC78PC30 Supply Current versus Input Voltage versus Input Voltage http://onsemi.com 7

MC78PC00 Series 50 50 A) 40 A) 40 (cid:2)T ( (cid:2)T ( N N E E R 30 R 30 R R U U C C Y Y PL 20 PL 20 P P U U S S , SS 10 , SS 10 I TA = 25°C I TA = 25°C 0 0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 23. MC78PC40 (4.0 V) Supply Current Figure 24. MC78PC50 Supply Current versus Input Voltage versus Input Voltage 50 50 A) 45 A) 45 (cid:2)T ( (cid:2)T ( N 40 N 40 E E R R R R U U C 35 C 35 Y Y L L P P UP 30 UP 30 S S , S , S IS 25 IS 25 20 20 −50 −25 0 25 50 75 100 −50 −25 0 25 50 75 100 TA, TEMPERATURE (°C) TA, TEMPERATURE (°C) Figure 25. MC78PC30 Supply Current Figure 26. MC78PC40 (4.0 V) Supply versus Temperature Current versus Temperature 50 0.7 S) IOUT = 150 mA T 0.6 A) 45 OL (cid:2)T ( E (V 0.5 EN 40 AG TA = 25°C R T PLY CUR 35 OUT VOL 00..43 100 mA UP 30 OP 50 mA S R 0.2 I, SS 25 , DDIF 0.1 30 mA V 10 mA 20 0 −50 −25 0 25 50 75 100 2.0 3.0 4.0 5.0 6.0 TA, TEMPERATURE (°C) VOUT, OUTPUT VOLTAGE (VOLTS) Figure 27. MC78PC50 Supply Current Figure 28. Dropout Voltage versus versus Temperature Output Voltage http://onsemi.com 8

MC78PC00 Series 80 80 70 70 B) B) N (d 60 N (d 60 O O TI 50 TI 50 C C E E EJ 40 EJ 40 R R E E L 30 L 30 P P P P RR, RI 20 VIN = 2.8 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA RR, RI 20 VIN = 2.8 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA 10 COUT = 1.0 (cid:2)F IOUT = 50 mA 10 COUT = 1.0 (cid:2)F IOUT = 50 mA 0 0 0.1 1.0 10 100 0.1 1.0 10 100 f, FREQUENCY (kHz) f, FREQUENCY (kHz) Figure 29. MC78PC18 Ripple Rejection Figure 30. MC78PC18 Ripple Rejection versus Frequency versus Frequency 80 80 70 70 B) B) N (d 60 N (d 60 O O TI 50 TI 50 C C E E EJ 40 EJ 40 R R E E L 30 L 30 P P P P RR, RI 20 VIN = 4.0 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA RR, RI 20 VIN = 4.0 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA 10 COUT = 4.7 (cid:2)F IOUT = 50 mA 10 COUT = 10 (cid:2)F IOUT = 50 mA 0 0 0.1 1.0 10 100 0.1 1.0 10 100 f, FREQUENCY (kHz) f, FREQUENCY (kHz) Figure 31. MC78PC30 Ripple Rejection Figure 32. MC78PC30 Ripple Rejection versus Frequency versus Frequency 80 80 70 70 B) B) N (d 60 N (d 60 O O TI 50 TI 50 C C E E EJ 40 EJ 40 R R E E L 30 L 30 P P P P RR, RI 20 VIN = 5.0 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA RR, RI 20 VIN = 5.0 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA 10 COUT = 4.7 (cid:2)F IOUT = 50 mA 10 COUT = 10 (cid:2)F IOUT = 50 mA 0 0 0.1 1.0 10 100 0.1 1.0 10 100 f, FREQUENCY (kHz) f, FREQUENCY (kHz) Figure 33. MC78PC40 (4.0 V) Ripple Figure 34. MC78PC40 (4.0 V) Ripple Rejection versus Frequency Rejection versus Frequency http://onsemi.com 9

MC78PC00 Series 80 70 B) N (d 60 O TI 50 C E EJ 40 R E L 30 P P RR, RI 20 VIN = 6.0 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA 10 COUT = 4.7 (cid:2)F IOUT = 50 mA 0 0.1 1.0 10 100 f, FREQUENCY (kHz) Figure 35. MC78PC50 Ripple Rejection versus Frequency 80 80 B) 70 B) 70 ICOOUUTT = = 1 1.00 m(cid:2)FA N (d 60 N (d 60 O O CTI 50 CTI 50 E E EJ 40 EJ 40 R R E E PL 30 PL 30 P P RR, RI 20 VIN = 6.0 VDC + 0.5 Vp−p IIOOUUTT == 13.00 mmAA RR, RI 20 ff == 14.000 k HHzz 10 COUT = 10 (cid:2)F IOUT = 50 mA 10 f = 10 kHz 0 0 0.1 1.0 10 100 3.1 3.2 3.3 3.4 3.5 f, FREQUENCY (kHz) VIN, INPUT VOLTAGE (VOLTS) Figure 36. MC78PC50 Ripple Rejection Figure 37. MC78PC30 Ripple Rejection versus Frequency versus Input Voltage (DC Bias) 80 80 B) 70 ICOOUUTT = = 1 100 m (cid:2)AF B) 70 ICOOUUTT = = 5 100 m (cid:2)AF d d N ( 60 N ( 60 O O TI 50 TI 50 C C E E J J E 40 E 40 R R E E PL 30 PL 30 P P RR, RI 20 ff == 14.000 k HHzz RR, RI 20 ff == 14.000 k HHzz 10 f = 10 kHz 10 f = 10 kHz 0 0 3.1 3.2 3.3 3.4 3.5 3.1 3.2 3.3 3.4 3.5 VIN, INPUT VOLTAGE (VOLTS) VIN, INPUT VOLTAGE (VOLTS) Figure 38. MC78PC30 Ripple Rejection Figure 39. MC78PC30 Ripple Rejection versus Input Voltage (DC Bias) versus Input Voltage (DC Bias) http://onsemi.com 10

MC78PC00 Series 3.4 6.0 3.4 6.0 S) S) OLT 3.3 5.0INV OLT3.3 5.0INV GE (V 3.2 INPUT VOLTAGE 4.0, INPU GE (V3.2 INPUT VOLTAGE 4.0, INPU A T A T LT V LT V O O O O V 3.1 3.0L V3.1 3.0L T TA T TA U OUTPUT VOLTAGE G U OUTPUT VOLTAGE G P E P E UT 3.0 2.0 (V UT3.0 2.0 (V O O O O V, OUT 2.9 tCIrO O=UU TtTf = == 3 540..0 7m (cid:2)(cid:2)AsF (TANTALUM) 1.0LTS) V, OUT2.9 tCIrO O=UU TtTf = == 3 560..0 8m (cid:2)(cid:2)AsF (TANTALUM) 1.0LTS) 2.8 0 2.8 0 0 20 40 60 80 100 120 0 20 40 60 80 100 120 t, TIME ((cid:2)s) t, TIME ((cid:2)s) Figure 40. MC78PC30 Line Transient Response Figure 41. MC78PC30 Line Transient Response 3.4 6.0 3.4 150 S) S) GE (VOLT33..32 INPUT VOLTAGE 54..00INV, INPU GE (VOLT33..32 OUTPUT CURRENT15000OUTI, OU OLTA T VO OLTA TPU V, OUTPUT VOUT332...109 tCIrO O=UU TtTf = == 3 510.O00 m U(cid:2)(cid:2)ATFsP (TUATN VTOALLTUAMG)E 321...000LTAGE (VOLTS) V, OUTPUT VOUT332...109 CCVIIONNU ==T 41=.. 004 .V(cid:2)7O f(cid:2) (UTFTA (PNTAUTNATLT VUAOLMLU)TMA)GE 0−−51000T CURRENT (mA) 2.8 0 2.8 −150 0 20 40 60 80 100 120 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20 t, TIME ((cid:2)s) t, TIME ((cid:2)s) Figure 42. MC78PC30 Line Transient Response Figure 43. MC78PC30 Load Transient Response 3.4 150 3.4 150 S) S) GE (VOLT33..32 OUTPUT CURRENT 15000OUTI, OUGE (VOLT33..32 OUTPUT CURRENT 15000OUTI, OU A TA T UT VOLT3.1 0 PUT CUUT VOLT3.1 0 PUT CU UTP3.0 OUTPUT VOLTAGE −50 RREUTP3.0 OUTPUT VOLTAGE −50 RRE O NO N V, OUT2.9 CCVIIONNU ==T 41=.. 006 .V(cid:2)8 f(cid:2) (TFA (NTATNALTUALMU)M) −100T (mA)V, OUT2.9 CCVIIONNU ==T 41=.. 001 0V(cid:2) (cid:2)f (FT A(TNATNATLAULMU)M) −100T (mA) 2.8 −150 2.8 −150 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20 t, TIME ((cid:2)s) t, TIME ((cid:2)s) 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 and ESR of Output Capacitor are shown. The conditions following points: where the white noise level is under 40 (cid:2)V (Avg.) are • Phase compensation is made for securing stable operation marked by the shaded area in the graph. (note: When even if the load current varies. For this reason, be sure to additional ceramic capacitors are connected to the Output use a capacitor COUT with good frequency characteristics Pin with Output capacitor for phase compensation, there and ESR (Equivalent Series Resistance) as described in is a possibility that the operation will be unstable. Because the graphs on page 11. of this, test these circuits with as same external On page 11, the relations between IOUT (Output Current) components as ones to be used on the PCB). 3 CE 1 5 VIN VOUT SPECTRUM 4.0 V CERAMIC CERAMIC S.A. ANALYSER CAPACITOR 2 GND CAPACITOR 1.0 (cid:2)F ESR IOUT MEASURING CONDITIONS: (1) FREQUENCY RANGE: 10 Hz TO 1.0 MHz MEASURING CONDITIONS: (2) TEMPERATURE: 25°C Figure 46. Measuring Circuit for White Noise: MC78PC30 • Please be sure the V and GND lines are sufficiently • Set external components, especially the Output Capacitor, in wide. When the impedance of these lines is high, there is as close as possible to the circuit, and make the wiring as a chance to pick up noise or to malfunction. short as possible. • Connect the capacitor with a capacitance of 1.0 (cid:2)F or more between V and GND as close as possible to V or in in GND. CE IN MC78PCxx OUT VIN VOUT + + CAP. GND CAP. Figure 47. Typical Application http://onsemi.com 12

MC78PC00 Series 100 100 10 10 (cid:4)R ( ) (cid:4)R ( ) S S E E 1.0 1.0 0.1 0.1 0 50 100 150 0 50 100 150 IOUT, OUTPUT CURRENT (mA) IOUT, OUTPUT CURRENT (mA) Figure 48. Ceramic Capacitor 4.7 (cid:2)F Figure 49. Ceramic Capacitor 6.8 (cid:2)F 100 10 (cid:4)R ( ) S E 1.0 0.1 0 50 100 150 IOUT, OUTPUT CURRENT (mA) Figure 50. Ceramic Capacitor 10 (cid:2)F 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 Tape Width (W) Pitch (P) Part Per Full Reel Reel Diameter 5L SOT−23 8 mm 4 mm 3000 7 inches ORDERING INFORMATION Device Package Shipping† MC78PC18NTR SOT−23 5 Leads MC78PC18NTRG SOT−23 5 Leads (Pb−Free) MC78PC25NTR SOT−23 5 Leads MC78PC25NTRG SOT−23 5 Leads (Pb−Free) MC78PC28NTR SOT−23 5 Leads MC78PC28NTRG SOT−23 5 Leads (Pb−Free) 3000 Units/Tape & Reel MC78PC30NTR SOT−23 5 Leads MC78PC30NTRG SOT−23 5 Leads (Pb−Free) MC78PC33NTR SOT−23 5 Leads MC78PC33NTRG SOT−23 5 Leads (Pb−Free) MC78PC50NTR SOT−23 5 Leads MC78PC50NTRG SOT−23 5 Leads (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Other voltages are available. Consult your ON Semiconductor representative. 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. A2 2. INTERPRET DIMENSIONS AND TOLERANCES A D B PER ASME Y14.5M, 1994. 0.05 S A1 3. DATUM C IS A SEATING PLANE. MILLIMETERS 5 4 DIM MIN MAX E 1 2 3 L A1 0.00 0.10 A2 1.00 1.30 E1 B 0.30 0.50 L1 B 5X C CD 02..1800 03..2050 e 0.10 M C B S A S C EEe1 21..055.0095 BSC31..1800 e1 e1 1.90 BSC L 0.20 −−− L1 0.45 0.75 SOLDERING FOOTPRINT* 0.7 MAX. 1.0 2.4 0.95 0.95 1.9 (Unit: mm) Figure 51. SOT−23−5 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. http://onsemi.com 15

MC78PC00 Series ON Semiconductor and are registered 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. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: N. American Technical Support: 800−282−9855 Toll Free ON Semiconductor Website: http://onsemi.com Literature Distribution Center for ON Semiconductor USA/Canada P.O. Box 61312, Phoenix, Arizona 85082−1312 USA Order Literature: http://www.onsemi.com/litorder Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 For additional information, please contact your Email: orderlit@onsemi.com Phone: 81−3−5773−3850 local Sales Representative. http://onsemi.com MC78PC00/D 16