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MAX730A - Current-Mode PWM DC-DC Converters

Download the MAX730A datasheet PDF. This datasheet also covers the MAX744A variant, as both devices belong to the same current-mode pwm dc-dc converters family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX730A/MAX738A/MAX744A are 5V-output CMOS, step-down switching regulators.

The MAX738A/ MAX744A accept inputs from 6V to 16V and deliver 750mA.

The MAX744A guarantees 500mA load capability for inputs above 6V and has tighter oscillator frequency limits for low-noise (radio) applications.

Key Features

  • o 750mA Load Currents (MAX738A/MAX744A) o High-Frequency, Current-Mode PWM o 159kHz to 212.5kHz Guaranteed Oscillator Frequency Limits (MAX744A) o 85% to 96% Efficiencies o 1.7mA Quiescent Current o 6µA Shutdown Supply Current o Single Preselected Inductor Value, No Component Design Required o Overcurrent, Soft-Start, and Undervoltage Lockout Protection o Cycle-by-Cycle Current Limiting o 8-Pin DIP/SO Packages (MAX730A) _________________Ordering Information PART TEMP. RANGE PIN-.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX744A_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MAX730 5V / Step-Down / Current-Mode PWM DC-DC Converters Maxim
MAX7300 20-Port or 28-Port I/O Expander Maxim
MAX7301 20-Port and 28-Port I/O Expander Maxim
MAX731 +5V/Adjustable Step-Up Current-Mode DC-DC Converters Maxim
MAX7310 2-Wire-Interfaced 8-Bit I/O Port Expander Maxim Integrated Products

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX7317 10-Port SPI-Interfaced I/O Expander
MAX7320 I2C Port Expander
MAX7322 I2C Port Expander
MAX7389 Microcontroller Clock Generator
MAX738A Current-Mode PWM DC-DC Converters

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.

View original datasheet text
19-0165; Rev 2; 1/96 MAX730A/MAX738A/MAX744A 5V, Step-Down, Current-Mode PWM DC-DC Converters __________________General Description The MAX730A/MAX738A/MAX744A are 5V-output CMOS, step-down switching regulators. The MAX738A/ MAX744A accept inputs from 6V to 16V and deliver 750mA. The MAX744A guarantees 500mA load capability for inputs above 6V and has tighter oscillator frequency limits for low-noise (radio) applications. The MAX730A accepts inputs between 5.2V and 11V and delivers 450mA for inputs above 6V. Typical efficiencies are 85% to 96%. Quiescent supply current is 1.7mA and only 6µA in shutdown. Pulse-width modulation (PWM) current-mode control provides precise output regulation and excellent transient responses.