Features: Guaranteed 1A Output Current
Low 210mV Dropout at 1A
Up to ±1% Output Voltage Accuracy Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V or 5.0V Adjustable from 1.25V to 5.0V
Reset Output (4ms delay)
Low 125A Ground Current
0.1A Shutdown
Low 115VRMS Output Noise
Thermal Overload Protection
Output Current Limit
Tiny TSSOP Power Package (1.5W)30% Smaller than SOT223 (only 1.1mm high)ApplicationNotebook Computers
Cordless Telephones
Cellular Phones
Modems
Hand-Held Instruments
PDAs and Palmtop ComputersPinout
SpecificationsIN, SHDN , RST to GND .............................................-0.3V to +6V
OUT, SET to GND ..........................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration ............................................Infinite
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP-EP (derate 19mW/°C above +70°C)...............1.5W
Operating Temperature Range ............................-40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
DescriptionThe MAX1793 low-dropout linear regulator (LDO) operates from +2.5V to +5.5V and delivers a guaranteed 1A load current with a low 210mV dropout. The high-accuracy(±1%) output voltage is preset at an internally trimmed voltage (see Ordering Information) or can be adjusted from 1.25V to 5.0V with an external resistordivider.
An internal PMOS pass transistor allows a low 125A supply current, making the MAX1793 ideal for batteryoperated portable equipment. Other features include a built-in reset output, low-power shutdown, and short-circuit and thermal overload protection. The MAX1793 is available in a 1.5W, 16-pin power TSSOP package, which is 30% smaller than a SOT223 package and only 1.1mm high.
MAX1793 Data Sheet
