ETR0325-004
■GENERAL
DESCRIPTION
The XB1086 is a series of low dropout positive voltage regulators with a high output current capability of 1.5A.
Stable output can be maintained by using 10μF (C
IN
) and 22μF (C
L
) of tantalum capacitors.
The XB1086P series is available in the fixed voltage types of 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V. The XB1086K is also
available as a voltage adjustable type which can set the output voltage with only two external resistors. With an over current
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 XB1086 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 1.5A (within Pd)
: 15V
: 1.5V, 1.8V, 2.5V,
3.3V, 5.0V (XB1086P),
Externally Set
(XB1086K / Reference
Voltage 1.25V (TYP.))
: ±1% ( Tj =25℃)
Output Voltage Accuracy
: 1.3V @ I
OUT
=1.5A (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
Maximum Output Current
Maximum Operating Voltage
Output Voltage
■TYPICAL
APPLICATION CIRCUITS
XB1086P Series
VIN
VIN
CIN=10μF
CIN=10uF
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Output
Voltage vs. Output Current
VOUT
VSS
IOUT
CL=22μF
CL=22uF
(Tantalum)
XB1086P331
VIN=4.9V
VIN=4.9V
CIN=10μF (Tantalum), CL=22μF (Tantalum)
CIN=10uF(Tantal）、CL=22uF(Tantal）
(Tantalum)
Output Voltage: VOUT(V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
XB1086K Series
VIN
VIN
CIN=10uF
CIN=10μF
(Tantalum)
R2
VOUT=VREF×(1+R2/R1) + IADJ×R2
ADJ
VOUT
R1
IOUT
CL=22μF
CL=22uF
(Tantalum)
Ta=85℃
Ta=25℃
Ta=0℃
300
600
900
1200
Output Current: IOUT (mA)
1500
1/11
TOREX [ TOREX SEMICONDUCTOR ]
