XB1085
Series
ETR0324-006
■GENERAL
DESCRIPTION
The XB1085 is a series of low dropout positive voltage regulators with a high output current capacity of 3.0A .
Stable output can be maintained by using 10μF (C
IN
) and 22μF (C
L
) of tantalum capacitors.
The fixed voltage types (XB1085P series) are available in 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V. The voltage adjustable type
(XB1085K series) is also available which can set the output voltage with only two external resistors.
With an overcurrent and thermal protection circuit built-in, the IC is disabled for protection when an output current reaches
limit current or junction temperature increases up to limit temperature.
The XB1085 series is available in TO-252 package.
■APPLICATIONS
●
High efficiency linear regulators
●
Battery chargers
●
DVD drives
●
Set top boxes
●
Various battery drive equipment
■FEATURES
: More than 3.0A (within Pd)
Maximum Output Current
Maximum Operating Voltage
: 12V
: 1.5V, 1.8V, 2.5V, 3.3V,
Output Voltage
5.0V, (XB1085P)
Externally Set
(XB1085K/ Reference
Voltage 1.25V (TYP.))
:
±1%
( Tj =25℃)
Output Voltage Accuracy
: 1.3V @ I
OUT
=3.0A (TYP.)
Dropout Voltage
: 0.015% (TYP.) <ADJ>
Line Regulation
: 0.1% (TYP.) <ADJ>
Load Regulation
Reference Voltage Pin Current
: Less than 120μA <ADJ>
Overcurrent Protection Circuit Built-In
Thermal Protection Circuit Built-In
: TO-252
Package
: EU RoHS Compliant
Environmentally Friendly
■TYPICAL
APPLICATION CIRCUITS
■TYPICAL
PERFORMANCE
CHARACTERISTICS
XB1085P Series
VIN
VIN
CIN=10μF
CIN=10uF
(Tantalum)
(Tantalum)
●Output
Voltage vs. Output Current
IOUT
CL=22μF
CL=22uF
(Tantalum)
(Tantalum)
VOUT
VSS
XB1085P331
VIN=4.9V
VIN=4.9V
CIN=10μF (Tantalum), CL=22μF (Tantalum)
CIN=10μF(Tantal),CL=22μF(Tantal)
3.50
Output Voltage: VOUT(V)
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0
600
1200
1800
2400
Output Current: IOUT (mA)
3000
Ta=85℃
Ta=25℃
Ta=0℃
XB1085K Series
VIN
VIN
CIN=10μF
CIN=10uF
(Tantalum)
(Tantalum)
VOUT
ADJ
R1
IOUT
CL=22μF
CL=22uF
(Tantalum)
(Tantalum)
R2
VOUT=VREF×(1+R2/R1) + IADJ×R2
1/11
TOREX [ TOREX SEMICONDUCTOR ]
