MAX8867 MAX8868 MAX886 EUK28 EUK29 EUK32 EUK33 EUK36 EUK50 EUK30 EUK25 - Datasheet Archive

 

Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 _Applications Modems Cordless Telephones Hand-Held Instruments PCS

 

19-1302; Rev 2; 3/01 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 _Applications Modems Cordless Telephones Hand-Held Instruments PCS Telephones Palmtop Computers PCMCIA Cards Electronic Planners _Pin Configuration TOP VIEW 5 o Low Output Noise: 30µVRMS o Low 55mV Dropout at 50mA Output (165mV at 150mA output) o Low 85µA No-Load Supply Current o Low 100µA Operating Supply Current (even in dropout) o Thermal-Overload and Short-Circuit Protection o Reverse Battery Protection o Output Current Limit o Preset Output Voltages (±1.4% accuracy) o 10nA Logic-Controlled Shutdown _Ordering Information PART* Cellular Telephones SHDN 1 _Features BP MAX8867C/Dxy MAX8867EUKxy-T MAX8868C/Dxy MAX8868EUKxy-T TEMP. RANGE 0°C to +70°C -40°C to +85°C 0°C to +70°C -40°C to +85°C PIN-PACKAGE Dice* 5 SOT23-5 Dice* 5 SOT23-5 * xy is the output voltage code (see Expanded Ordering Information table). * Dice are tested at TA = +25°C _Expanded Ordering Information MAX8867 MAX8867 MAX8868 MAX8868 SOT23-5 _Typical Operating Circuit INPUT 2.5V TO 6.5V IN CIN 1µF OUT MAX8867 MAX8867 MAX8868 MAX8868 ON SHDN OFF CBP 0.01µF BP GND COUT 1µF OUTPUT PRESET 2.5V TO 5.0V 150mA 2.50 ACAY ACBF MAX886 MAX886_EUK28 EUK28 OUT MAX8867 MAX8867 2.80 ACAZ ACBG MAX886 MAX886_EUK29 EUK29 2.84 ACBA ACBH 3.00 ACBB ACBI MAX886 MAX886_EUK32 EUK32 3.15 ACBC ACBJ MAX886 MAX886_EUK33 EUK33 3.30 ACBD ACBK MAX886 MAX886_EUK36 EUK36 3.60 ACCZ ACDA MAX886 MAX886_EUK50 EUK50 5.00 ACBE ACBL Other xy* 4 PRESET OUTPUT VOLTAGE (V) MAX886 MAX886_EUK30 EUK30 IN 3 OUTPUT VOLTAGE (xy) CODE MAX886 MAX886_EUK25 EUK25 GND 2 x.y0 - - SOT TOP MARK MAX8868 MAX8868 *Other xy between 2.5V and 5.0V are available in 100mV increments. Contact factory for other versions. Minimum order quantity is 25,000 units. _ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX8867/MAX8868 MAX8867/MAX8868 _General Description The MAX8867/MAX8868 MAX8867/MAX8868 low-noise, low-dropout linear regulators operate from a 2.5V to 6.5V input and deliver up to 150mA. Typical output noise for these devices is just 30µVRMS, and typical dropout is only 165mV at 150mA. The output voltage is preset to voltages in the range of 2.5V to 5.0V, in 100mV increments. The MAX8867 MAX8867 and MAX8868 MAX8868 are pin-compatible with the MAX8863 MAX8863 and MAX8864 MAX8864, except for the BP pin. Designed with an internal P-channel MOSFET pass transistor, the MAX8867/MAX8868 MAX8867/MAX8868 maintain a low 100µA supply current, independent of the load current and dropout voltage. Other features include a 10nA logic-controlled shutdown mode, short-circuit and thermal-shutdown protection, and reverse battery protection. The MAX8868 MAX8868 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown. Both devices come in a miniature 5-pin SOT23 package. MAX8867/MAX8868 MAX8867/MAX8868 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 ABSOLUTE MAXIMUM RATINGS IN to GND .-7V to +7V Output Short-Circuit Duration .Infinite SHDN to GND.-7V to +7V SHDN to IN .-7V to +0.3V OUT, BP to GND .-0.3V to (VIN + 0.3V) Continuous Power Dissipation (TA = +70°C) SOT23-5 (derate 7.1mW/°C above +70°C).571mW Operating Temperature Range .-40°C to +85°C Junction Temperature .+150°C JB .140°C/W Storage Temperature Range .-65°C to +160°C Lead Temperature (soldering, 10sec) .+300°C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VIN = VOUT(NOMINAL) + 0.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Input Voltage (Note 2) SYMBOL CONDITIONS Output Voltage Accuracy Maximum Output Current Current Limit V 1.4 -3 IOUT = 0mA to 120mA UNITS 6.5 -1.4 IOUT = 0mA, TA = +25°C MAX 2.5 VIN MIN TYP 2 150 ILIM 160 mA 390 1.1 55 165 Line Regulation VLNR VIN = (VOUT + 0.1V) to 6.5V, IOUT = 1mA Load Regulation VLDR en f = 10Hz to 100kHz, CBP = 0.01µF VIH µA -0.15 120 mV 0 0.15 %/V 0.04 %/mA COUT = 10µF 30 COUT = 100µF 20 VIN = 2.5V to 5.5V VIL 180 0.01 IOUT = 0mA to 120mA, COUT = 1µF Output Voltage Noise mA 100 IOUT = 150mA Dropout Voltage (Note 2) 85 IOUT = 150mA IOUT = 50mA IQ No load IOUT = 1mA Ground-Pin Current % VIN = 2.5V to 5.5V µVRMS SHUTDOWN SHDN Input Threshold SHDN Input Bias Current ISHDN Shutdown Supply Current IQ, SHDN VSHDN = VIN VOUT = 0V Shutdown Exit Delay (Note 3) CBP = 0.1µF, COUT = 1µF, no load Shutdown Discharge Resistance MAX8868 MAX8868 only 2 2.0 0.4 TA = +25°C 0.01 TA = +85°C 0.5 TA = +25°C 0.01 TA = +85°C 0.2 TA = +25°C 30 TA = -40°C to +85°C 100 1 150 300 300 _ V nA µA µs Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 (VIN = VOUT(NOMINAL) + 0.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS THERMAL PROTECTION Thermal Shutdown Temperature TSHDN 155 °C Thermal Shutdown Hysteresis TSHDN 15 °C Note 1: Limits are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control (SQC) Methods. Note 2: The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V. Note 3: Time needed for VOUT to reach 95% of final value. _Typical Operating Characteristics (VIN = VOUT(NOMINAL) + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25°C, unless otherwise noted.) 2.55 2.50 GROUND PIN CURRENT vs. LOAD CURRENT MAX8867/8-02 MAX8867/8-02 5.1 5.0 2.45 4.9 2.40 110 105 GROUND PIN CURRENT (µA) MAX8867/8-01 MAX8867/8-01 5.2 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2.60 MAX886 MAX886_EUK50 EUK50 OUTPUT VOLTAGE vs. LOAD CURRENT 4.8 MAX8867/8-03 MAX8867/8-03 MAX886 MAX886_EUK25 EUK25 OUTPUT VOLTAGE vs. LOAD CURRENT MAX886 MAX886_EUK50 EUK50 100 95 MAX886 MAX886_EUK25 EUK25 90 85 80 75 70 65 50 100 150 60 0 50 100 150 LOAD CURRENT (mA) MAX886 MAX886_EUK25 EUK25 GROUND PIN CURRENT vs. INPUT VOLTAGE MAX886 MAX886_EUK50 EUK50 GROUND PIN CURRENT vs. INPUT VOLTAGE 50 NO LOAD 60 40 80 NO LOAD 60 40 0 1 2 3 4 INPUT VOLTAGE (V) 5 6 MAX886 MAX886_EUK50 EUK50 4 3 2 MAX886 MAX886_EUK25 EUK25 0 0 0 5 1 20 20 OUTPUT VOLTAGE vs. INPUT VOLTAGE MAX8867/8-05 MAX8867/8-05 ILOAD = 50mA 100 GROUND PIN CURRENT (µA) 80 150 6 OUTPUT VOLTAGE (V) ILOAD = 50mA 100 100 LOAD CURRENT (mA) 120 MAX8867/8-04 MAX8867/8-04 120 GROUND PIN CURRENT (µA) 0 LOAD CURRENT (mA) MAX8867/8-06 MAX8867/8-06 0 0 1 2 3 4 INPUT VOLTAGE (V) 5 6 0 1 2 3 4 5 6 INPUT VOLTAGE (V) _ 3 MAX8867/MAX8868 MAX8867/MAX8868 ELECTRICAL CHARACTERISTICS (continued) _Typical Operating Characteristics (continued) (VIN = VOUT(NOMINAL) + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25°C, unless otherwise noted.) MAX886 MAX886_EUK50 EUK50 OUTPUT VOLTAGE vs. TEMPERATURE 2.50 5.10 5.00 2.45 4.90 2.40 200 ILOAD = 50mA 180 4.80 MAX8867/8-09 MAX8867/8-09 ILOAD = 50mA OUTPUT VOLTAGE (V) 2.55 GROUND PIN CURRENT vs. TEMPERATURE MAX8867/8-08 MAX8867/8-08 ILOAD = 50mA OUTPUT VOLTAGE (V) 5.20 MAX8867/8-07 MAX8867/8-07 2.60 GROUND PIN CURRENT (µA) MAX886 MAX886_EUK25 EUK25 OUTPUT VOLTAGE vs. TEMPERATURE 160 140 MAX886 MAX886_EUK50 EUK50 120 100 80 MAX886 MAX886_EUK25 EUK25 60 40 20 -40 -20 0 20 40 60 80 0 -40 100 -20 0 20 40 60 80 -40 100 -20 0 20 40 60 80 TEMPERATURE (°C) MAX886 MAX886_EUK25 EUK25 DROPOUT VOLTAGE vs. LOAD CURRENT MAX886 MAX886_EUK50 EUK50 DROPOUT VOLTAGE vs. LOAD CURRENT POWER-SUPPLY REJECTION RATIO vs. FREQUENCY 150 TA = +25°C 100 TA = +85°C TA = -40°C 50 150 60 COUT = 10µF 50 TA = +25°C 100 TA = -40°C COUT = 1µF 40 30 20 50 ILOAD = 50mA CBP = 0.1µF 10 0 0 40 60 80 100 120 140 160 0 0 20 LOAD CURRENT (mA) 60 80 100 120 140 160 80 MAX8867/8-13 MAX8867/8-13 1 COUT = 1µF COUT = 10µF ILOAD = 10mA f = 10Hz TO 100kHz 70 OUTPUT NOISE (µVRMS) CBP = 0.01µF ILOAD = 10mA 50 MAX886 MAX886_EUK50 EUK50 40 MAX886 MAX886_EUK30 EUK30 20 MAX886 MAX886_EUK25 EUK25 COUT = 10µF 0 1 10 FREQUENCY (kHz) 100 1000 10 100 1000 60 50 MAX886 MAX886_EUK50 EUK50 COUT = 10µF CBP = 0.01µF f = 10Hz TO 100kHz 40 MAX886 MAX886_EUK30 EUK30 30 20 MAX886 MAX886_EUK25 EUK25 10 10 0.01 1 OUTPUT NOISE vs. LOAD CURRENT 60 30 0.1 FREQUENCY (kHz) OUTPUT NOISE vs. BP CAPACITANCE 10 0.1 0.01 LOAD CURRENT (mA) OUTPUT NOISE SPECTRAL DENSITY vs. FREQUENCY 0.1 40 OUTPUT NOISE (µVRMS) 20 MAX8867/8-14 MAX8867/8-14 0 0 0.001 0.01 BP CAPACITANCE (µF) 0.1 1 10 LOAD CURRENT (mA) _ 100 MAX8867/8-15 MAX8867/8-15 TA = +85°C PSRR (dB) 200 70 MAX8867/8-11 MAX8867/8-11 MAX8867/8-10 MAX8867/8-10 200 DROPOUT VOLTAGE (mV) DROPOUT VOLTAGE (mV) 250 4 100 TEMPERATURE (°C) MAX8867/8-12 MAX8867/8-12 TEMPERATURE (°C) OUTPUT NOISE SPECTRAL DENSITY (µV/Hz) MAX8867/MAX8868 MAX8867/MAX8868 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 LOAD-TRANSIENT RESPONSE NEAR DROPOUT LOAD-TRANSIENT RESPONSE MAX8867/8-19 MAX8867/8-19 LINE-TRANSIENT RESPONSE MAX8867/8-18 MAX8867/8-18 MAX8867/8-20 MAX8867/8-20 3.01V 3.01V 3.00V 3.00V VOUT 2.99V 4V VIN 3V VOUT 2.99V 3.001V VOUT 50mA ILOAD 0mA 50mA 2.999V ILOAD 0mA 10µs/div MAX886 MAX886_EUK30 EUK30, VIN = VOUT + 0.5V, CIN = 10µF, ILOAD = 0mA TO 50mA 100µs/div MAX886 MAX886_EUK30 EUK30, ILOAD = 50mA 10µs/div MAX886 MAX886_EUK30 EUK30, VIN = VOUT + 0.1V, CIN = 10µF, ILOAD = 0mA TO 50mA MAX8868 MAX8868 ENTERING SHUTDOWN 2V MAX886 MAX886_EUK50 EUK50 SHUTDOWN EXIT DELAY MAX886 MAX886_EUK25 EUK25 SHUTDOWN EXIT DELAY MAX8867/8-25 MAX8867/8-25 MAX8867-23 MAX8867-23 MAX8867-21 MAX8867-21 VSHDN VSHDN 2V CBP = 0.01µF 0V 0V 0V 4V VOUT CBP = 0.1µF 1V CBP = 0.1µF VOUT 2V 0V 0V 500µs/div NO LOAD CBP = 0.01µF 0V 2V VOUT VSHDN 2V 5µs/div 5µs/div ILOAD = 50mA ILOAD = 50mA MAX886 MAX886_EUK25 EUK25 10Hz TO 100kHz OUTPUT NOISE REGION OF STABLE COUT ESR vs. LOAD CURRENT MAX8867/8-17 MAX8867/8-17 MAX8867/8-16 MAX8867/8-16 100 COUT ESR () 10 VOUT 50µV/div COUT = 1µF 1 COUT = 10µF STABLE REGION 0.1 0.01 1ms/div COUT = 10µF, CBP = 0.1µF, ILOAD = 10mA 0 20 40 60 80 100 120 140 LOAD CURRENT (mA) _ 5 MAX8867/MAX8868 MAX8867/MAX8868 _Typical Operating Characteristics (continued) (VIN = VOUT(NOMINAL) + 0.5V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25°C, unless otherwise noted.) MAX8867/MAX8868 MAX8867/MAX8868 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 _Pin Description PIN NAME 1 SHDN Active-Low Shutdown Input. A logic low reduces the supply current to 10nA. On the MAX8868 MAX8868, a logic low also causes the output voltage to discharge to GND. Connect to IN for normal operation. 2 GND Ground. This pin also functions as a heatsink. Solder to a large pad or the circuit-board ground plane to maximize power dissipation. 3 IN Regulator Input. Supply voltage can range from 2.5V to 6.5V. Bypass with a 1µF capacitor to GND (see Capacitor Selection and Regulator Stability section). 4 OUT 5 BP IN SHDN FUNCTION Regulator Output. Sources up to 150mA. Bypass with a 1µF (