IRU1205-36

Data Sheet No. PD94133 IRU1205 IRU1205-18 / IRU1205-25 / IRU1205-28 IRU1205-30 / IRU1205-33 / IRU1205-36 300mA ULTRA LOW DROPOUT POSITIVE ADJUSTABLE AND FIXED REGULATORS FEATURES SOT-23 Package Stable with 2.2mF Ceramic Capacitor 1% Voltage Reference Accuracy Only 270mV Dropout at 300mA and 170mV Dropout at 150mA 5mA Quiescent Current in Shutdown Current Limit and Thermal Shutdown Logic Input Enable Pin APPLICATIONS Laptop, Notebook & Palmtop computers Battery Powered Equipments PCMCIA Vcc & Vpp Regulator Consumer Electronics High Efficiency Linear Power Supplies DESCRIPTION The IRU1205 device is an efficient linear voltage regulator with better than 1% initial voltage accuracy, very low dropout voltage and very low ground current designed especially for hand held, battery powered applications. Other features of the device are: TTL compatible enable/ shutdown control input, current limiting and thermal shutdown. The IRU1205 is available in fixed and adjustable output voltage versions in a small SOT-23 5-Pin package. TYPICAL APPLICATION VIN C1 2.2uF 1 VIN 2 Gnd VOUT 5 SD Enable 3 En Adj 4 VOUT ( )R1 C2 Vo = 1.253 1+ R1 R2 2.2uF R2 Figure 1 - Typical application of the IRU1205 ajustable voltage regulator. 3.3V C1 2.2uF 1 VIN VOUT 5 2 Gnd C2 2.2uF 2.5V SD Enable 3 En CBYP 4 C3 1000pF Figure 2 - Typical application of the IRU1205-25 fixed voltage regulator. PACKAGE ORDER INFORMATION TJ (°C) 0 To 125 0 To 125 0 To 125 0 To 125 0 To 125 0 To 125 0...