Order this document by MC33264/D LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL The MC33264 series are micropower low dropout voltage regulators available in SO–8 and Micro–8 surface mount packages and a wide range of output voltages. These devices feature a very low quiescent current (100 µA in the ON mode; 0.1 µA in the OFF mode), and are capable of supplying output currents up to 100 mA. Internal current and thermal limiting protection is provided. They require only a small output capacitance for stability. Additionally, the MC33264 has either active HIGH or active LOW control (Pins 2 and 3) that allows a logic level signal to turn–off or turn–on the regulator output. Due to the low input–to–output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension of useful battery life is desirable. MC33264 Features: • • • • • • • • SEMICONDUCTOR TECHNICAL DATA D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) 8 Low Quiescent Current (0.3 µA in OFF Mode; 95 µA in ON Mode) 1 Low Input–to–Output Voltage Differential of 47 mV at 10 mA, and 131 mV at 50 mA Multiple Output Voltages Available DM SUFFIX PLASTIC PACKAGE CASE 846A (Micro–8) Extremely Tight Line and Load Regulation 8 Stable with Output Capacitance of Only 0.22 µF for 4.0 V, 4.75 V and 5.0 V Output Voltages 0.33 µF for 2.8 V, 3.0 V, 3.3 V and 3.8 V Output Voltages Internal Current and Thermal Limiting 1 Logic Level ON/OFF Control PIN CONNECTIONS Functionally Equivalent to TK115XXMC and LP2980 Representative Block Diagram 1 8 Vin 1 8 Output 2 On/Off 3 7 Base 6 Gnd N/C 4 5 Adjust Vout Thermal and Anti–Sat Protection 2 Input On/Off (Top View) 7 Base ORDERING INFORMATION On/Off Rint Device 5 Adj 1.23 V Vref 3 52.5 k MC33264 On/Off 6 Gnd This device contains 37 active transistors. MC33264D–2.8 MC33264D–3.0 MC33264D–3.3 MC33264D–3.8 MC33264D–4.0 MC33264D–4.75 MC33264D–5.0 MC33264DM–2.8 MC33264DM–3.0 MC33264DM–3.3 MC33264DM–3.8 MC33264DM–4.0 MC33264DM–4.75 MC33264DM–5.0 Motorola, Inc. 1998 MOTOROLA ANALOG IC DEVICE DATA Operating Temperature Range Package SO–8 TA = – 40° to +85°C Micro–8 Rev 3 1 MC33264 MAXIMUM RATINGS (TC = 25°C, unless otherwise noted.) ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ Symbol Value Unit VCC 13 Vdc PD Internally Limited W RθJA RθJC 180 45 °C/W °C/W RθJA 240 °C/W Output Current IO 100 mA Maximum Adjustable Output Voltage VO 1.15 x Vnom Vdc Operating Junction Temperature TJ 125 °C Operating Ambient Temperature TA –40 to +85 °C Tstg –65 to +150 °C Rating Input Voltage Power Dissipation and Thermal Characteristics Maximum Power Dissipation Case 751 (SO–8) D Suffix Thermal Resistance, Junction–to–Ambient Thermal Resistance, Junction–to–Case Case 846A (Micro–8) DM Suffix Thermal Resistance, Junction–to–Ambient ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ Storage Temperature Range NOTE: ESD data available upon request. ELECTRICAL CHARACTERISTICS (Vin = 6.0 V, IO = 10 mA, CO = 1.0 µF, TJ = 25°C (Note 1), unless otherwise noted.) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ Characteristic Output Voltage (IO = 0 mA) 2.8 Suffix (VCC = 3.8 V) 3.0 Suffix (VCC = 4.0 V) 3.3 Suffix (VCC = 4.3 V) 3.8 Suffix (VCC = 4.8 V) 4.0 Suffix (VCC = 5.0 V) 4.75 Suffix (VCC = 5.75 V) 5.0 Suffix (VCC = 6.0 V) Vin = (VO + 1.0) V to 12 V, IO < 60 mA,TA= –40° to +85°C 2.8 Suffix 3.0 Suffix 3.3 Suffix 3.8 Suffix 4.0 Suffix 4.75 Suffix 5.0 Suffix Symbol Min Typ Max 2.74 2.96 3.23 3.72 3.92 4.66 4.9 2.8 3.0 3.3 3.8 4.0 4.75 5.0 2.86 3.04 3.37 3.88 4.08 4.85 5.1 2.7 2.9 3.18 3.67 3.86 4.58 4.83 – – – – – – – 2.9 3.1 3.42 3.93 4.14 4.92 5.17 VO Unit V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ Line Regulation (Vin = [VO + 1.0] V to 12 V, IO = 60 mA) All Suffixes Regline – 2.0 10 mV Load Regulation (Vin = [VO + 1.0], IO = 0 mA to 60 mA) All Suffixes Regload – 16 25 mV Dropout Voltage IO = 10 mA IO = 50 mA IO = 60 mA VI – VO – – – 47 131 147 90 200 230 – – – 95 0.3 540 150 2.0 900 mV µA Quiescent Current ON Mode (Vin = [VO + 1.0] V, IO = 0 mA) OFF Mode ON Mode (Vin = [VO + 0.5] V, IO = 0 mA) [Note2] IQ Ripple Rejection (Vin peak–to–peak = [VO + 1.5] to [VO + 5.5] V at f = 1.0 kHz) – 55 65 – dB TC – ±120 – ppm/°C ILimit 100 150 – mA – – 110 46 – – Output Voltage Temperature Coefficient Current Limit (Vin = [VO + 1.0], VO Shorted) Output Noise Voltage (10 Hz to 100 kHz) (Note 3) CL = 1.0 µF CL = 100 µF µVrms Vn NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. Quiescent current is measured where the PNP pass transistor is in saturation. VCE = –0.5 V guarantees this condition. 3. Noise tests on the MC33264 are made with a 0.01 µF capacitor connected across Pins 8 and 5. 2 MOTOROLA ANALOG IC DEVICE DATA MC33264 ELECTRICAL CHARACTERISTICS (continued) (Vin = 6.0 V, IO = 10 mA, CO = 1.0 µF, TJ = 25°C (Note 1), unless otherwise noted.) Characteristic Symbol Min Typ Max Unit 2.4 0 – – Vin 0.5 0 Vin – 0.2 – – Vin – 2.4 Vin – 1.9 – – 12 – ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ON/OFF INPUTS On/Off Input (Pin 3 Tied to Ground) Logic “1” (Regulator ON) Logic “0” (Regulator OFF) On/Off Input (Pin 2 Tied to Vin) Logic “0” (Regulator ON) Logic “1” (Regulator OFF) VOn/Off On/Off Pin Input Current (Pin 3 Tied to Ground) VOn/Off= 2.4 V On/Off Pin Input Current (Pin 2 Tied to Vin) VOn/Off = Vin – 2.4 V IOn/Off V µA NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. Quiescent current is measured where the PNP pass transistor is in saturation. VCE = –0.5 V guarantees this condition. 3. Noise tests on the MC33264 are made with a 0.01 µF capacitor connected across Pins 8 and 5. DEFINITIONS Dropout Voltage – The input/output voltage differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 100 mV below its nominal value (which is measured at 1.0 V differential), dropout voltage is affected by junction temperature, load current and minimum input supply requirements. Line Regulation – The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly affected. Load Regulation – The change in output voltage for a change in load current at constant chip temperature. Maximum Power Dissipation – The maximum total device dissipation for which the regulator will operate within specifications. Quiescent Current – Current which is used to operate the regulator chip and is not delivered to the load. Output Noise Voltage – The rms ac voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Figure 1. Quiescent Current versus Load Current Figure 2. Output Voltage versus Input Voltage 1.0 6.0 VO, OUTPUT VOLTAGE (V) IQ, QUIESCENT CURRENT (mA) 5.0 TA = 25°C MC33264D–5.0 0.10 0.03 0.1 5.0 TA = 25°C MC33264D–5.0 4.0 RL = 5.0 k 3.0 RL = 100 Ω 2.0 1.0 1.0 10 Iload, LOAD CURRENT (mA) MOTOROLA ANALOG IC DEVICE DATA 100 0 0 1.0 2.0 3.0 4.0 5.0 6.0 Vin, INPUT VOLTAGE (V) 3 MC33264 Figure 3. Input Current versus Input Voltage Figure 4. Output Voltage versus Temperature 5.04 1000 VO, OUTPUT VOLTAGE (V) I , INPUT CURRENT (µA) in 5.03 800 600 No Load TA = 25°C MC33264D–5.0 400 200 5.02 IO = 10 mA TA = 25°C MC33264D–5.0 5.01 5.00 4.99 4.98 4.97 2.0 4.0 6.0 8.0 10 4.96 –55 12 V I – VO, DROPOUT VOLTAGE (mV) RL = 40 to 50 k CL = 1.0 µF TA = 25°C MC33264D–5.0 160 120 80 40 1.0 10 100 400 V I – VO, DROPOUT VOLTAGE (mV) RL= 100 to 500 Ω Figure 5. Dropout Voltage versus Output Current 240 0 0.3 50 25 75 100 125 TA, AMBIENT TEMPERATURE (°C) Vin, INPUT VOLTAGE (V) 200 0 –25 Figure 6. Dropout Voltage versus Temperature 300 250 55 RL = 5.0 k TA = 25°C MC33264D–5.0 RL = 100 200 50 45 RL = 5.0 k 150 40 100 50 –50 IO, OUTPUT CURRENT (mA) RL = 500 0 50 100 35 30 150 V I – VO, DROPOUT VOLTAGE (mV) RL= 5.0 k 0 0 TA, TEMPERATURE (°C) APPLICATION INFORMATION Introduction The MC33264 regulators are designed with internal current limiting and thermal shutdown making them user–friendly. These regulators require only 0.33 µF (or greater) capacitance between the output terminal and ground for stability for 2.8 V, 3.0 V, 3.3 V and 3.8 V output voltage options. Output voltage options of 4.0 V, 4.75 V and 5.0 V require only 0.22 µF for stability. The output capacitor must be mounted as close to the MC33264 as possible. If the output capacitor must be mounted further than two centimeters away from the MC33264, then a larger value of output capacitor may be required for stability. A value of 0.68 µF or larger is recommended. Most types of aluminum, tantalum or multilayer ceramic will perform adequately. Solid tantalums or appropriate multilayer ceramic capacitors are recommended for operation below 25°C. A bypass capacitor is recommended across the MC33264 input to ground if more than 4.0 inches of wire connects the input to either a battery or power supply filter capacitor. 4 On/Off Control On/Off control of the regulator may be accomplished in either of two ways. Pin 3 may be tied to circuit ground and a positive logic control applied to Pin 2. The regulator will be turned on by a positive (>2.4 V) level, typically 5.0 V with respect to ground, sourcing a typical current of 6.0 µA. The regulator will turn off if the control input is a logic “0” (<0.5 V). Alternatively, Pin 2 may be tied to the regulator input voltage and a negative logic control applied to Pin 3. The regulator will be turned on when the control voltage is less than Vin – 2.4 V, sinking a typical current of 18 µA when Vin = 6.0 V. The regulator is off when the control input is open or greater than Vin – 0.2 V. Programming The Output Voltage The MC33264 output voltage is automatically set using its internal voltage divider. Alternatively, it may be programmed within a typical ±15% range of its preset output voltage. An external pair of resistors is required, as shown in Figure 7. MOTOROLA ANALOG IC DEVICE DATA MC33264 Figure 7. Regulator Output Voltage Trim Vin 3.3 µF 1 Control Input 2 Vin Vout On/Off Base 3 Vout 3.0, 3.3 or 5.0 V 8 7 R1 4 On/Off 3.3 µF N/C N/C Gnd 0.01 Adj 6 5 R2 ǒ Ǔ The complete equation for the output voltage is: V out ) IFB R1 + Vref 1 ) R1 R2 where Vref is the nominal 1.235 V reference voltage and IFB is the feedback pin bias current, nominally –20 nA. The minimum recommended load current of 1.0 µA forces an upper limit of 1.2 MΩ on the value of R2, if the regulator must work with no load. IFB will produce a 2% typical error in Vout which may be eliminated at room temperature by adjusting R1. For better accuracy, choosing R2 = 100 K reduces this error to 0.17% while increasing the resistor program current to 12 µA. Output Noise In many applications it is desirable to reduce the noise present at the output. Reducing the regulator bandwidth by increasing the size of the output capacitor is the only method for reducing noise. Noise can be reduced fourfold by a bypass capacitor across R1, since it reduces the high frequency gain from 4 to unity for the MC33264D–5.0. Pick C BYPASS + 2π R1 x1 200 Hz or about 0.01 µF. When doing this, the output capacitor must be increased to 3.3 µF to maintain stability. These changes reduce the output noise from 430 µV to 100 Vrms for a 100 kHz bandwidth for the 5.0 V output device. With the bypass capacitor added, noise no longer scales with output voltage so that improvements are more dramatic at higher output voltages. TYPICAL APPLICATIONS Figure 8. Lithium Ion Battery Cell Charger Unregulated Input 6.0 to 10 Vdc 2 Control 1 Vin Vout 200 k 1% 7 0.1 Base MC33264D–5.0 3 On/Off Gnd 6 4.2 V ± 0.15 V 1N4001 8 On/Off Adj 5 N/C 4 N/C 100 k 1% Lithium Ion Rechargeable Cell 0.22 50 k Ground MOTOROLA ANALOG IC DEVICE DATA 5 MC33264 Figure 9. Low Drift Current Source +V = 4.0 to 12 V IL Load IL = 1.23/R 0.1 1 Vin 2 Control 8 Vout On/Off Base 3 On/Off 7 N/C 4 N/C Gnd Adj 5 6 1.0 µF R Figure 10. 2.0 Ampere Low Dropout Regulator +Vin Current Limit Section 1000 µF 0.05 470 680 2N3906 2N3906 120 k TIP32B 0.33 2 1 Vin On/Off Vout Base MC33264 220 3 8 7 4 On/Off N/C N/C 0.01 75 k 0.033 100 µF Vout @ 2.0 A R1 Adj Gnd 6 4.7 µF Tant 5 R2 6 MOTOROLA ANALOG IC DEVICE DATA MC33264 Figure 11. Low Battery Disconnect 6.0 V Lead–Acid Battery 31.6 k 22.1 k 100 k 2 MC34164P–5 1 Vin 5 1 8 3 Base MC33264 3 0.1 2 Memory V+ 4 On/Off 20 N/C Adj Gnd 4 Main V+ Vout On/Off NiCad Backup Battery 1.0 µF R2 3.0 k 5 R1 1.0 k Figure 12. RF Amplifier Supply 1.0 0.1 VBB Double 3 11 1.0 12 2 1 VCC 14 MC33169 VBB Triple 9 Gate Drive Output 10 Sense Input 6 Negative Generator (–2.5 V or –4.0 V) 5 7 Vout On/Off 3 Sense Charge Pump Vin 2 8 7 N/C 4 On/Off N/C Adj Gnd 6 TIP32B 0.33 1 Base MC33264 Priority Management Tx On Input 13 On/Off Idle Mode Input 200 8 VBB Generator (Voltage Tripler) Gnd VBattery 7.0 V 100 µF 0.1 3.0 k 0.01 5 5.0 V @ 0.5 A 4.7 µF Tant 1.0 k 100 µF VSS Output 4 RF Out RF In 1.0 1N5819 Power Amplifier 0.22 100 MOTOROLA ANALOG IC DEVICE DATA 0.1 7 MC33264 OUTLINE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751–05 (SO–8) ISSUE R D A 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. C 5 0.25 H E B M M 1 4 B e h X 45 _ q A C DIM A A1 B C D E e H h L SEATING PLANE 0.10 A1 B 0.25 M L C B A S q S DM SUFFIX PLASTIC PACKAGE CASE 846A–02 (Micro–8) ISSUE C –A– –B– K PIN 1 ID G D 8 PL 0.08 (0.003) –T– M T B S A 0.038 (0.0015) C H J NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. S SEATING PLANE L MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.18 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0_ 7_ DIM A B C D G H J K L MILLIMETERS MIN MAX 2.90 3.10 2.90 3.10 ––– 1.10 0.25 0.40 0.65 BSC 0.05 0.15 0.13 0.23 4.75 5.05 0.40 0.70 INCHES MIN MAX 0.114 0.122 0.114 0.122 ––– 0.043 0.010 0.016 0.026 BSC 0.002 0.006 0.005 0.009 0.187 0.199 0.016 0.028 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. “Typical” parameters which may be provided in Motorola 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. Motorola does not convey any license under its patent rights nor the rights of others. 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