ST730A

Pinout




Specifications




Description

The ST730A is a 5V output CMOS, step-downswitching regulator. The ST730A accepts inputsbetween 5.2V and 11V and delivers 450mA.Typical efficiencies are 85% to 96%.
Quiescent supply current is 0.8mA and only 0.3µA in shutdown mode. The ST730A output does not exhibit frequency over this specified range. Pulse-width modulation (PWM) current-mode control providesprecise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±5% over line, load, and temperature varations.
Fixed-frequency switching and absence of subharmonic ruipple allows easy filtering of output ripple and noise, as well as the use of small external components. This ST730A require only a single inductor value to work in most applications, so no inductor design is necessary. Typical applications are: Cellular phones&radios, portable-Instruments, Portable Communications Equipments and Computer Peripherals.