MAX789

VCC to GND..............................................................-0.3V to +6V
VSS to GND...............................................................-6V to +0.3V
OUT_ to GND ........................................................-2.5V to +3.5V
All Other Pins to GND ......................(VSS - 0.3V) to (VCC + 0.3V)
Maximum Current into Any Pin .........................................±50mA
Continuous Power Dissipation (TA = +70°C)
20-Pin 5mm x 5mm Thin QFN (derate 20.8mW/°C
above +70°C)...........................................................1666.7mW
Operating Temperature Range .........................-40°C to +85°C
Storage Temperature Range ..........................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and  unctional 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.

The MAX787/MAX788/MAX789 are monolithic, bipolar, pulse-width modulation (PWM), switch-mode, step-down DC-DC regulators. Each is rated at 5A. Very few external components are needed for standard operation because the power switch, oscillator, feedback, and control circuitry are all on-chip. Employing a classic buck topology, these regulators MAX789 perform high-current step-down functions.

The MAX787/MAX788/MAX789 have excellent dynamic and transient response characteristics, while featuring cycle-by-cycle current limiting to protect against overcurrent faults and short-circuit output faults. They also have a wide 8V to 40V input range.

Each regulator MAX789 is available in a 5-pin TO-220 package. These devices have a preset 100kHz oscillator frequency and a preset current limit of 6.5A. See the MAX724/ MAX726 data sheet for more applications information.