Data Sheet No. PD94133
IRU1205
IRU1205-18 / IRU1205-25 / IRU1205-28
IRU1205-30 / IRU1205-33 / IRU1205-36
300mA ULTRA...
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...