Texas Instruments UC2832TDWEP

UC2832TDWEP Description
All the control features necessary for the creation of very low dropout linear regulators are included in the UC2832 family of precision 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 UC2832, the constant-current-limit can be programmed to allow a larger peak current during the pass device's on-time. High initial load requirements and short circuit protection can both be supported via duty-ratio management without the need for additional heat sinking or foldback current limiting. The duty-ratio timer is also deactivated and the IC runs in constant-voltage/constant-current regulating mode if the timer pin is grounded.

UC2832TDWEP Features
Extended Temperature Performance of –40°C to 105°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product Change Notification
Qualification Pedigree?
Precision 1% Reference
Over-Current Sense Threshold Accurate to 5%
Programmable Duty-Ratio Over-Current Protection


UC2832TDWEP Applications
Power Management
Consumer Electronics
Portable Devices
Industrial