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 a...