MAX8875 19-1556 Rev 1 12/00 150mA, Low-Dropout Linear Regulator with Power-OK Output General Description Features The MAX8875 low-dropout linear regulator operates from Power-OK Output a +2.5V to +6.5V input range and delivers up to 150mA. Small Output Capacitor (1F ceramic) A P-channel MOSFET pass transistor allows its 85A sup- ply current to remain independent of the load, making this Preset Output Voltages (1% accuracy) device ideal for battery-operated portable equipment Guaranteed 150mA Output Current such as PCS phones, cellular phones, cordless phones, 85A No-Load Supply Current and modems. The MAX8875 features a power-OK (POK) output that indi- Low 110mV Dropout at 100mA Load (165mV at cates when the output is out of regulation. The device is 150mA load) available in several preset output voltage versions: 5.0V, Thermal-Overload and Short-Circuit Protection 3.3V, 3.0V, 2.7V, 2.5V, or 1.5V. Other features include 1A Reverse-Battery Protection (max) shutdown current, short-circuit protection, thermal shutdown protection, and reverse-battery protection. The 60dB PSRR at 100Hz device comes in a miniature 5-pin SOT23 package. 1A max Shutdown Current The MAX8875 is optimized for use with a 1F ceramic out- put capacitor. For a pin-compatible, functionally equivalent device for use with a higher ESR output capacitor, see the Ordering Information MAX8885 data sheet. * PART TEMP. RANGE PIN-PACKAGE MAX8875EUKxy-T -40C to +85C 5 SOT23-5 * xy is the output voltage code (see Output Voltage Selector Guide). Applications Output Voltage Selector Guide PCS Telephones Hand-Held Instruments PART V (V) TOP MARK OUT Cellular Telephones Palmtop Computers MAX8875EUK15-T 1.5 ADQI MAX8875EUK25-T 2.5 ADKZ Cordless Telephones Electronic Planners MAX8875EUK27-T 2.7 ADLA PCMCIA Cards Modems MAX8875EUK30-T 3.0 ADLB MAX8875EUK33-T 3.3 ADLC MAX8875EUK50-T 5.0 ADLD Note: Other output voltages between 1.5V and 5.0V are avail- able in 100mV incrementscontact the factory for information. Typical Operating Circuit Minimum order quantity is 25,000 units. OUTPUT PRESET INPUT 1.5V TO 5.0V Pin Configuration +2.5V TO +6.5V 150mA IN OUT C OUT TOP VIEW C IN 1 F 1 F IN 1 5 OUT MAX8875 100k MAX8875 GND 2 ON SHDN POK TO C OFF GND SHDN 3 4 POK SOT23-5 Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.150mA, Low-Dropout Linear Regulator with Power-OK Output ABSOLUTE MAXIMUM RATINGS IN, SHDN, POK to GND...............................................-7V to +7V Operating Temperature Range ...........................-40C to +85C Junction Temperature......................................................+150C SHDN to IN...............................................................-7V to +0.3V ...............................................................................+140C/W OUT to GND ................................................-0.3V to (V + 0.3V) JA IN Storage Temperature Range .............................-65C to +150C Output Short-Circuit Duration ........................................Indefinite Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) A 5-Pin SOT23 (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 IN = OUT(NOMINAL) + 1V, SHDN = IN, T = -40C to +85C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage V 2.5 6.5 V IN -1.0 1.0 T = +25C, I = 100A A OUT I = 100A -2 2 OUT Output Voltage Accuracy % T = -40C to +85C A I = 100A to OUT -3 2 120mA Maximum Output Current I 150 mA OUT Current Limit I 160 390 mA LIM I = 100A 85 180 OUT Ground Pin Current I A Q I = 150mA 100 OUT I = 100A 0.1 OUT I = 50mA 50 OUT Dropout Voltage (Note 2) V -V mV IN OUT I = 100mA 110 220 OUT 165 I = 150mA OUT Line Regulation V V = 2.5V or (V + 0.1V) to 6.5V, I = 1mA -0.15 0 0.15 %/V LNR IN OUT OUT Load Regulation V I = 100A to 120mA, C = 1F 0.01 %/mA LDR OUT OUT Output Voltage Noise C = 10F, f = 10Hz to 100kHz 170 V OUT RMS Output Voltage AC Power- PSRR f = 100Hz 60 dB Supply Rejection Ratio SHUTDOWN T = +25C 0.005 1 A Shutdown Supply Current I SHDN = GND A OFF T = +85C 0.02 A V 2.0 IH V = 2.5V to 5.5V V SHDN Input Threshold IN V 0.4 IL T = +25C 0 100 A SHDN Input Bias Current I SHDN = IN or GND nA SHDN T = +85C 0.05 A 2 MAX8875