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MAX1972 - Dual / 180 Out-of-Phase / 1.4MHz / 750mA Step-Down Regulator

Download the MAX1972 datasheet PDF. This datasheet also covers the MAX1971 variant, as both devices belong to the same dual / 180 out-of-phase / 1.4mhz / 750ma step-down regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1970/MAX1971/MAX1972 dual-output currentmode PWM buck regulators operate from 2.6V to 5.5V input and deliver a minimum of 750mA on each output.

The MAX1970 and MAX1972 operate at a fixed 1.4MHz (MAX1971 operates at 700kHz) to reduce output inductor and capacitor size and cost.

Key Features

  • o Current-Mode, 1.4MHz Fixed-Frequency PWM Operation o 180° Out-of-Phase Operation Reduces Input Capacitor o ±1% Output Accuracy Over Load, Line, and Temperature Ranges o 750mA Guaranteed Output Current o 2.6V to 5.5V Input o Power-On Reset Delay of 16.6ms (MAX1970) or 175ms (MAX1971 and MAX1972) o Power-Fail Output (MAX1970 and MAX1972 Only) o Power-On Reset Input (MAX1971 Only) o Operation Outside xDSL Band o Ultra-Compact Design with Smallest External Components o Outputs Adjustable from 0.8V.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1971-Maxim.pdf) that lists specifications for multiple related part numbers.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX197 12-Bit DAS
MAX1970 Dual / 180 Out-of-Phase / 1.4MHz / 750mA Step- Down Regulator
MAX19700 Ultra-Low-Power Analog Front-End
MAX19705 Ultra-Low-Power Analog Front-End
MAX19706 Ultra-Low-Power Analog Front-End
MAX19708 Ultra-Low-Power Analog Front-End
MAX1971 Dual / 180 Out-of-Phase / 1.4MHz / 750mA Step-Down Regulator
MAX19710 Analog Front-End
MAX19711 Analog Front-End
MAX19712 Analog Front-End

Full PDF Text Transcription for MAX1972 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for MAX1972. For precise diagrams, tables, and layout, please refer to the original PDF.

19-2297; Rev 0; 1/02 Dual, 180° Out-of-Phase, 1.4MHz, 750mA StepDown Regulator with POR and RSI/PFO General Description The MAX1970/MAX1971/MAX1972 dual-output currentmod...

View more extracted text
General Description The MAX1970/MAX1971/MAX1972 dual-output currentmode PWM buck regulators operate from 2.6V to 5.5V input and deliver a minimum of 750mA on each output. The MAX1970 and MAX1972 operate at a fixed 1.4MHz (MAX1971 operates at 700kHz) to reduce output inductor and capacitor size and cost. Switching the regulators 180° out-of-phase also reduces the input capacitor size and cost. Ceramic capacitors can be used for input and output. The output voltages are programmable from 1.2V to VIN using external feedback resistors, or can be preset to 1.8V or 3.3V for output 1 and 1.5V or 2.5V for output 2. When one output