R1243S
features
. The R1243x001A/C/E has a latch protection with 2 ms delay time, the R1243x001B/D has a fold-back protection that keep operating during short condition with lower operating frequency and limiting the LX current. The R1243x has a built-in soft-start time (Typ. 0.4 ms). In addition to this, the soft-start time is adjustable by adding an external capacitor. The R1243x has the FLG pin, which mainly monitors the FB pin voltage and gives a flag output by the Nch open drain if the abnormal condition is detected. The R1243x is offered in 8-pin HSOP-8E and 10-pin DFN(PL)2527-10 packages that can achieve high density mounting.
FEATURES
- Operating Voltage Range 4.5 V to 30 V
- Standby Current Max. 10 µA (VIN = 30 V, CE = L)
- Supply Current Typ. 0.7 m A (VIN = 30 V, VFB = 1.0 V)
- Output Voltage Range 0.8 V...
