MAX1658/MAX1659 350mA, 16.5V Input, Low-Dropout Linear Regulators General Description Features The MAX1658/MAX1659 linear regulators maximize Wide Input Voltage Range: 2.7V to 16.5V battery life by combining ultra-low supply currents Low, 490mV Dropout at 350mA Output Current and low-dropout voltages. They feature Dual Mode (MAX1659) operation, which presets the output to 3.3V (MAX1658) or 30A Supply Current 5V (MAX1659), or permits it to be adjusted between 1.25V 1A Max Shutdown Current and 16V. The regulator supplies up to 350mA, with a typical dropout of 650mV for the MAX1658 and 490mV for High-Power (1.2W) 8-Pin SO Package the MAX1659. With their p-channel MOSFET pass transis- Dual Mode Operation Output: tor, these devices maintain a low quiescent current from Fixed 3.3V (MAX1658) zero output current to the full 350mA, even in dropout. Fixed 5.0V (MAX1659) They support input voltages ranging from 2.7V to 16.5V. or Adjustable (1.25V to 16V) The MAX1658/MAX1659 feature a 1A shutdown mode, Thermal-Overload Protection reverse-battery protection, short-circuit protection, and Current-Limit Protection thermal shutdown. They are available in a special high- power (1.2W), 8-pin SO package designed specifically for Reverse-Battery Protection compact applications. Ordering Information Applications PART TEMP RANGE PIN-PACKAGE Digital Cordless Phones MAX1658C/D 0C to +70C Dice* PCS Phones MAX1658ESA+ -40C to +85C 8 SO Cellular Phones PCMCIA Cards MAX1659C/D 0C to +70C Dice* Modems MAX1659ESA+ -40C to +85C 8 SO Hand-Held Instruments *Dice are tested at T = +25C, DC parameters only. A Palmtop Computers +Denotes a lead(Pb)-free/RoHS-compliant package. Electronic Planners Typical Operating Circuit Pin Configuration OUTPUT 3.3V OR 5V, INPUT OR ADJ. (DOWN TO 1.25V) TOP VIEW UP TO 16.5V UP TO 350mA IN OUT MAX1658 SET 1 8 GND MAX1659 MAX1658 SHDN 2 7 IN MAX1659 ON OFF SHDN IN 3 6 IN OUT 4 5 OUT GND SET SO Dual Mode is a trademark of Maxim Integrated Products. 19-1263 Rev 1 5/14MAX1658/MAX1659 350mA, 16.5V Input, Low-Dropout Linear Regulators Absolute Maximum Ratings IN to GND ...............................................................-17V to +17V Operating Temperature Range Continuous Output Current ..............................................500mA MAX1658ESA/MAX1659ESA ......................... -40C to +85C Output Short-Circuit Duration ........................................... Infinite Junction Temperature ......................................................+150C SET, SHDN to GND ...............................................-17V to +17V Storage Temperature Range ............................ -65C to +160C OUT to GND .............................................. -0.3V to (VIN + 0.3V) Lead Temperature Range (soldering, 10sec) ..................+300C Continuous Power Dissipation (Note 1) SO (derate 14.5mW/C above +70C) ............................1.2W Note 1: See Operating Region and Power Dissipation section. 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 = 5V (MAX1658), V = 6V (MAX1659) C = 10F SHDN = IN T = T to T unless otherwise noted. Typical values IN IN OUT A MIN MAX are at T = +25C.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage Range V SET = OUT 2.7 16.5 V IN MAX1658, 3.20 3.30 3.40 5V V 16.5V SET = GND, IN Output Voltage V V OUT 0mA < ILOAD < 350mA MAX1659, 4.85 5.00 5.15 6V V 16.5V IN Regulated Output Voltage Range (Note 3) 1.25 16 V Maximum Output Current I 350 mA OUT(MAX) Current Limit I 900 mA LIM Supply Current I 30 60 A Q I = 1mA 2 OUT Dropout Voltage (Note 4) V MAX1658 650 1500 mV DO I = 350mA OUT MAX1659 490 875 MAX1658, V = 5V to 16.5V 0.03 IN Line Regulation V %/V LNR MAX1659, V = 6V to 16.5V 0.05 IN Load Regulation V I = 0mA to 350mA 0.003 %/mA LDR OUT Startup Overshoot V 0 %V OSH OUT Output Noise e 10Hz to 100kHz 2.5 mV n P-P SHUTDOWN Logic-Low Input V 2.7V V 16.5V 0.4 V INLSHDN IN Logic-High Input Threshold V 2.7V V 16.5V 2.0 V INHSHDN IN Shutdown Input Bias Current I SHDN = GND or SHDN = IN 0.1 A SHDN Shutdown Supply Current I SHDN 0.4V 0.1 1 A QSHDN Shutdown Exit Time t V = 5.0V 120 s START OUT Maxim Integrated 2 www.maximintegrated.com