UC3833DWTR Description
Precision linear regulators from the UC2832 and UC3833 series come with all the control features needed to create very low dropout linear regulators.
They also have a novel duty-ratio current limitation approach, which limits the average power consumption of the external pass transistor during fault conditions while providing peak load capacity. A gated-astable timer is enabled when the load current reaches a precisely defined threshold, switching the regulator's pass device on and off at an externally controllable duty-ratio. The output current is restricted to a value only slightly greater than the duty-ratio timer's trip threshold when the pass element is turned on. On the UCx832, the constant-current-limit can be programmed to enable a larger peak current during the pass device's on-time.
UC3833DWTR Features
Precision 1% Reference
Over-Current Sense Threshold Accurate to 5%
Programmable Duty-Ratio Over-Current Protection
4.5 V to 36 V Operation
100mA Output Drive, Source, or Sink
Under-Voltage Lockout
UC3833DWTR Applications
Power Management
Consumer Electronics
Portable Devices
Industrial
