UTC UZ1085 LINEAR INTEGRATED CIRCUIT
3A ADJUSTABLE/FIXED LOW
DROPOUT LINEAR REGULATOR
1
2
DESCRIPTION
3
1
2
3
The UZ1085-ADJ,UZ1085-Fixed are low dropout
three-terminal regulators with 3A output current capability.
These devices have been optimized for low voltage
applications including VTT bus termination, where transient
response and minimum input voltage are critical.
Current limit is trimmed to ensure specified output current
and controlled short-circuit current. On-chip thermal limiting
provides protection against any combination of overload and
ambient temperature that would create excessive junction
temperatures.
TO-252
TO-220
1
1
2
3
2
3
FEATURES
TO-263
TO-263-3
*Fast transient response
*Low dropout voltage at up to 3A
*Load regulation:0.05% typical
*Trimmed current limit
1: ADJ/GND
2: VOUT
3: VIN
*On-chip thermal limiting
APPLICATIONS
*Pentium Class GTL+bus supply
*Low voltage logic supply
*Post regulator for switching supply
TYPICAL APPLICATIONS
UZ1085-ADJ
VOUT
9V at 3A
VIN=12V
22μF
VIN
ADJ
+
+
R1
124Ω
22μF
R2
768Ω
VOUT=VREF(1+R2/R1)+IADJ*R2
UZ1085-3.3
3.3V at 3A
VOUT
VIN=9V
VIN
GND
+
+
22μF
22μF
1
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R102-013,B
