The MAX727/MAX728/MAX729 are monolithic, bipolar, pulse-width modulation (PWM), switch-mode, step-down DC-DC regulators. Each is rated at 2A. 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. These regulators 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 is available in a 5-pin TO-220 package. These devices have a preset 100kHz oscillator frequency and a preset current limit of 2.6A. See the MAX724/ MAX726 data sheet for more applications information.
This document is a technical datasheet for the MAX727, MAX728, and MAX729 monolithic bipolar pulse-width modulation (PWM) switch-mode step-down DC-DC regulators. Each device is rated at 2A output current with very few external components required for standard operation.
| Output Current | 2A |
|---|---|
| Switching Frequency | 100kHz |
| Quiescent Current | 8.5mA |
The regulators support a wide input range up to 40V.
The devices are available in a 5-pin TO-220 package.