MAX8867/MAX8868 19-1302 Rev 3 7/02 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 General Description Features The MAX8867/MAX8868 low-noise, low-dropout linear Low Output Noise: 30V RMS regulators operate from a 2.5V to 6.5V input and deliver Low 55mV Dropout at 50mA Output up to 150mA. Typical output noise for these devices is (165mV at 150mA output) just 30V , and typical dropout is only 165mV at RMS 150mA. The output voltage is preset to voltages in the Low 85A No-Load Supply Current range of 2.5V to 5.0V, in 100mV increments. The Low 100A Operating Supply Current MAX8867 and MAX8868 are pin-compatible with the MAX8863 and MAX8864, except for the BP pin. (Even In Dropout) Designed with an internal P-channel MOSFET pass tran- Thermal-Overload and Short-Circuit Protection sistor, the MAX8867/MAX8868 maintain a low 100A Reverse Battery Protection supply current, independent of the load current and dropout voltage. Other features include a 10nA logic- Output Current Limit controlled shutdown mode, short-circuit and thermal- Preset Output Voltages (1.4% Accuracy) shutdown protection, and reverse battery protection. The MAX8868 also includes an auto-discharge function, 10nA Logic-Controlled Shutdown which actively discharges the output voltage to ground when the device is placed in shutdown. Both devices come in regular and thin 5-pin SOT23 packages. Applications Ordering Information Cellular Telephones Modems TEMP PART** PIN-PACKAGE RANGE Cordless Telephones Hand-Held Instruments MAX8867EUKxy-T -40C to +85C SOT23-5 Regular PCS Telephones Palmtop Computers MAX8867EZKxy-T -40C to +85C SOT23-5 Thin PCMCIA Cards Electronic Planners MAX8867C/Dxy 0C to +70C Dice* MAX8868EUKxy-T -40C to +85C SOT23-5 Regular MAX8868EZKxy-T -40C to +85C SOT23-5 Thin MAX8868C/Dxy 0C to +70C Dice* *Dice are tested at T = +25C only. A **xy is the output voltage code (see Expanded Ordering Information table at end of data sheet). Pin Configuration Typical Operating Circuit TOP VIEW INPUT OUTPUT 2.5V TO 6.5V PRESET SHDN15 BP IN OUT 2.5V TO 5.0V C 150mA IN C OUT 1 F MAX8867 1 F MAX8867 2 GND MAX8868 MAX8868 ON SHDN OFF BP IN34 OUT C GND BP 0.01 F SOT23-5 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23 ABSOLUTE MAXIMUM RATINGS IN to GND....................................................................-7V to +7V SOT23-5 Thin (derate 9.1mW/C above +70C)..........727mW Output Short-Circuit Duration ............................................Infinite Operating Temperature Range ...........................-40C to +85C SHDN to GND..............................................................-7V to +7V Junction Temperature......................................................+150C (Regular)..................................................................140C/W SHDN to IN...............................................................-7V to +0.3V JB (Thin)........................................................................110C/W OUT, BP to GND..........................................-0.3V to (V + 0.3V) JB IN Storage Temperature.........................................-65C to +150C Continuous Power Dissipation (T = +70C) A Lead Temperature (soldering, 10s) .................................+300C SOT23-5 Regular (derate 7.1mW/C above +70C) ....571mW 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 (V = V + 0.5V, T = -40C to +85C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) IN OUT(NOMINAL) A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage (Note 2) V 2.5 6.5 V IN I = 0mA, T = +25C -1.4 1.4 OUT A Output Voltage Accuracy % I = 0mA to 120mA -3 2 OUT Maximum Output Current 150 mA Current Limit I 160 390 mA LIM No load 85 180 Ground-Pin Current I A Q I = 150mA 100 OUT I = 1mA 1.1 OUT I = 50mA 55 120 Dropout Voltage (Note 2) OUT mV I = 150mA 165 OUT Line Regulation V V = (V + 0.1V) to 6.5V, I = 1mA -0.15 0 0.15 %/V LNR IN OUT OUT Load Regulation V I = 0mA to 120mA, C = 1F 0.01 0.04 %/mA LDR OUT OUT C = 10F 30 f = 10Hz to 100kHz, OUT Output Voltage Noise e V n RMS C = 0.01F BP C = 100F 20 OUT SHUTDOWN V V = 2.5V to 5.5V 2.0 IH IN V SHDN Input Threshold V V = 2.5V to 5.5V 0.4 IL IN T = +25C 0.01 100 A SHDN Input Bias Current I V = V nA SHDN SHDN IN T = +85C 0.5 A T = +25C 0.01 1 A Shutdown Supply Current I V = 0V A Q, SHDN OUT T = +85C 0.2 A T = +25C 30 150 A Shutdown Exit Delay C = 0.1F, BP s (Note 3) C = 1F, no load OUT T = -40C to +85C 300 A Shutdown Discharge MAX8868 only 300 Resistance 2 MAX8867/MAX8868