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
XB1086
Series
■PIN
CONFIGURATION
V
OUT
VOUT
(Tab)
(Tab)
2
4
2
2
V
OUT
VOUT
1
VSS/
V
SS
/
ADJ
3
3
V
IN
VIN
TO-252
(TOP VIEW)
■PIN
ASSIGNMENT
PIN NUMBER
TO-252
1
2
3
PIN NAME
V
SS
/ ADJ
V
OUT
V
IN
FUNCITONS
Ground / Reference Voltage
Output
Input
■PRODUCT
CLASSIFICATION
●Ordering
Information
XB1086①②③④⑤⑥
DESIGNATOR
DESCRIPTION
Type of Regulators
SYNBOL
P
K
151
181
Output Voltage and Output
Voltage Accuracy
251
331
501
12B
DESCRIPTION
: Fixed V
OUT
: Adjustable (Externally Set)
: V
OUT
=1.5V (±1%)
: V
OUT
=1.8V (±1%)
: V
OUT
=2.5V (±1%)
: V
OUT
=3.3V (±1%)
: V
OUT
=5.1V (±1%)
: V
REF
=1.25V (±1%)
: TO-252
: Embossed tape, standard feed
: Embossed tape, reverse feed
①
②③④
⑤
⑥
Package
Device Orientation
J
R
L
2/11
XB1086
Series
■BLOCK
DIAGRAM
VIN
VOUT
Current
Limit
Thermal
Protection
Error
Amp
Bandgap
Reference
VSS/
ADJ
*Diodes inside the circuit are ESD protection diodes.
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Power Dissipation
Operating Junction Temperature
Storage Temperature Range
Note:
*1: Stresses greater than those listed under the above ratings may cause permanent damage to the device.
*2: The rating of the power dissipation is determined when mounted on the PCB.
SYMBOL
V
IN
Pd
Tj
T
stg
RATINGS
18
1300
(*2)
UNIT
V
mW
℃
℃
125
- 55 ~ 125
3/11
XB1086
Series
■ELECTRICAL
CHARACTERISTICS
XB1086PxxxJ
PARAMETER
SYMBOL
V
OUT
(1.5V)
V
OUT
(1.8V)
Output Voltage
V
OUT
(2.5V)
V
OUT
(3.3V)
V
OUT
(5.0V)
⊿V
OUT1
(1.5V)
⊿V
OUT1
(1.8V)
Line Regulation
⊿V
OUT1
(2.5V)
⊿V
OUT1
(3.3V)
⊿V
OUT1
(5.0V)
⊿V
OUT2
(1.5V)
⊿V
OUT2
(1.8V)
Load Regulation
⊿V
OUT2
(2.5V)
⊿V
OUT2
(3.3V)
⊿V
OUT2
(5.0V)
V
dif
I
LIM
I
DD
Ts
O.T.
(*1)
CONDITIONS
V
IN
=3.5V, I
OUT
=10mA
V
IN
=3.8V, I
OUT
=10mA
V
IN
=4.5V, I
OUT
=10mA
V
IN
=5.0V, I
OUT
=10mA
V
IN
=7.0V, I
OUT
=10mA
1.5V≦V
IN
-V
OUT
≦10V
I
OUT
=10mA
1.5V≦V
IN
-V
OUT
≦10V
I
OUT
=10mA
1.5V≦V
IN-
V
OUT
≦10V
I
OUT
=10mA
1.5V≦V
IN-
V
OUT
≦10V
I
OUT
=10mA
1.5V≦V
IN
-V
OUT
≦10V
I
OUT
=10mA
V
IN
-V
OUT
=2.0V
10mA≦I
OUT
≦1.5A
V
IN
-V
OUT
=2.0V
10mA≦I
OUT
≦1.5A
V
IN
-V
OUT
=2.0V
10mA≦I
OUT
≦1.5A
V
IN
-V
OUT
=2.0V
10mA≦I
OUT
≦1.5A
V
IN
-V
OUT
=2.0V
10mA≦I
OUT
≦1.5A
⊿V
OUT
=1%, I
OUT
=1.5A
V
IN
-V
OUT
=2.0V
V
IN
=V
OUT
+1.3V
V
IN
-V
OUT
=1.5V
I
OUT
=10mA
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
Tj= 25℃ unless otherwise specified
MIN.
1.485
1.47
1.782
1.746
2.475
2.45
3.267
3.235
4.95
4.9
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.5
-
-
TYP.
1.5
-
1.8
-
2.500
-
3.300
-
5
-
0.3
0.6
0.3
0.6
0.3
0.6
0.5
1
0.5
1
3
6
3
6
3
6
3
7
5
10
1.3
2.3
5
0.5
MAX.
1.515
1.53
1.818
1.854
2.525
2.55
3.333
3.366
5.05
5.1
6
6
6
6
6
6
10
10
10
10
12
20
12
20
12
20
15
20
20
35
1.5
-
10
-
UNIT CIRCUIT
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
A
mA
%
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
②
-
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
Dropout Voltage
Current Limit
Supply Current
Temperature Stability
I
OUT
=10mA
Note:
*1: O.T. denotes the specifications which apply over the range of operating junction temperature (0℃≦Tj≦125
O
C).
Please be sure that the power consumption does not exceed the power dissipation rating, 1300mW.
shutdown state.
If the power consumption
exceeds the power dissipation rating and the operating junction temperature rises more than the rating, 125
O
C, the IC enters thermal
4/11
XB1086
Series
■ELECTRICAL
CHARACTERISTICS (Continued)
XB1086K12BJ
PARAMETER
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Temperature Stability
Minimum Output
Current
Adjust Voltage Pin
Current
Note:
*1: O.T. denotes the specifications which apply over the range of operating junction temperature (0℃≦Tj≦125
O
C).
Please be sure that the power consumption does not exceed the power dissipation rating, 1300mW.
shutdown state.
If the power consumption
exceeds the power dissipation rating and the operating junction temperature rises more than the rating, 125
O
C, the IC enters thermal
Tj= 25℃ unless otherwise specified
SYMBOL
V
REF
⊿V
OUT1
⊿V
OUT2
Vdif
I
LIM
T
S
I
OUTmin
I
ADJ
CONDITIONS
V
IN
-V
OUT
=2.0V
I
OUT
=10mA
1.5V≦V
IN-
V
OUT
≦10V
I
OUT
=10mA
V
IN
-V
OUT
=2.0V
10mA≦I
OUT
≦1.5A
⊿V
OUT
=1%, I
OUT
=1.5A
V
IN
-V
OUT
=2.0V
V
IN
-V
OUT
=1.5V
I
OUT
=10mA
1.4V≦V
IN
-V
OUT
≦10V
V
IN
=V
OUT
+1.5V
I
OUT
=10mA
O.T.
(*1)
-
O.T.
(*1)
MIN.
O.T.
(*1)
TYP.
1.250
-
0.015
0.035
0.1
0.2
1.3
2.3
0.5
2
60
MAX.
1.262
1.270
0.2
0.2
0.3
0.4
1.5
-
-
5
120
UNIT
V
%
%
V
A
%
mA
μA
CIRCUIT
①
①
①
①
①
-
①
①
1.238
1.225
-
-
1.5
O.T.
(*1)
O.T.
(*1)
O.T.
(*1)
-
-
-
5/11
Microcontroller MCU
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