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MAX728 - 5V/3.3V/3V 5A Step-Down / PWM / Switch-Mode DC-DC Regulators

Description

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.

Features

  • o Input Range: Up to 40V o 5A On-Chip Power Switch o Fixed Outputs: 5V (MAX787) 3.3V (MAX788) 3V (MAX789) o 100kHz Switching Frequency o Excellent Dynamic Characteristics o Few External Components o 8.5mA Quiescent Current o TO-220 Package MAX787/MAX788/MAX789 ______________Ordering Information PART MAX787CCK MAX787ECK MAX788CCK MAX788ECK MAX789CCK MAX789ECK TEMP. RANGE 0°C to +70°C -40°C to +85°C 0°C to +70°C -40°C to +85°C 0°C to +70°C -40°C to +85°C PIN-.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-0182; Rev 3; 9/95 5V/3.3V/3V 5A Step-Down, PWM, Switch-Mode DC-DC Regulators _______________General Description 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 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.
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