XB1085 Datasheet PDF - Torex Semiconductor
| Part Number | XB1085 | |
| Description | 3.0A Positive Voltage Regulator | |
| Manufacturers | Torex Semiconductor | |
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XB1085 Series
3.0A Positive Voltage Regulator
ETR0324-008
■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 (CIN) and 22μF (CL) 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
■FEATURES
● High efficiency linear regulators
● Battery chargers
● DVD drives
● Set top boxes
● Various battery drive equipment
Maximum Output Current : More than 3.0A (within Pd)
Maximum Operating Voltage : 12V
Output Voltage
: 1.5V, 1.8V, 2.5V, 3.3V,
5.0V, (XB1085P)
Externally Set
(XB1085K/ Reference
Voltage 1.25V (TYP.))
Output Voltage Accuracy
: ±1% ( Tj =25℃)
Dropout Voltage
: 1.3V @ IOUT=3.0A (TYP.)
Line Regulation
: 0.015% (TYP.) <ADJ>
Load Regulation
: 0.1% (TYP.) <ADJ>
Reference Voltage Pin Current: Less than 120μA <ADJ>
Overcurrent Protection Circuit Built-In
Thermal Protection Circuit Built-In
Package
: TO-252
Environmentally Friendly : EU RoHS Compliant
■TYPICAL APPLICATION CIRCUITS ■TYPICAL PERFORMANCE
CHARACTERISTICS
XB1085P Series
●Output Voltage vs. Output Current
VIN
VIN
VIN VOUT
CCIINN==110μ0uFF
(T(aTnatanltuamlu) m)
VSS
IOUT
(CC(TTLLaa==nn2t2ta2a2lμuluumFmF))
XB1085K Series
VIN VOUT
CCIINN==1100μuFF
(Ta(nTtaalunmta)lum)
ADJ
IOUT
R1
CCLL==2222μuFF
(T(Tanatnatlaulmum) )
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0
XB1085P331
VVININ==44..99VV
CIN=C10INμ=F10(TμanFta(Tluamnt),alC),LC=L2=22μ2Fμ(TFa(Tntaanlutaml))
Ta=85℃
Ta=25℃
Ta=0℃
600 1200 1800 2400 3000
Output Current: IOUT (mA)
VOUT=VREF×(1+R2/R1) + IADJ×R2
R2
1/12
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XB1085
Series
■ELECTRICAL CHARACTERISTICS (Continued)
XB1085K12BJR
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNIT CIRCUIT
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
Limit Current
Temperature Stability
Minimum
Output Current
Adjust Voltage Pin
Current
VREF
⊿VOUT1
⊿VOUT2
Vdif
ILIM
Ts
IOUTmin
IADJ
VIN-VOUT=3.0V
IOUT=10mA
2.85V≦VIN≦10V
IOUT=10mA
VIN-VOUT=3.0V
0mA≦IOUT≦3.0A
⊿VOUT=1%, IOUT=3.0A
VIN-VOUT=3.0V
VIN-VOUT=1.5V
IOUT=10mA
VIN=10V
VIN=4.25V, IOUT=10mA
O.T.(*1)
O.T.(*1)
O.T.(*1)
O.T.(*1)
1.238
1.225
-
-
-
3.2
-
1.25
-
0.015
0.035
0.1
0.2
1.3
4.5
0.5
1.262
1.275
0.2
0.2
0.3
0.4
1.5
-
-
V
%
%
V
A
%
O.T.(*1)
-
3 10 mA
O.T.(*1)
-
55 120 μA
③
③
③
③
③
-
③
③
Note:
(*1) O.T. denotes the specifications which apply over the operating junction Temperature range (0℃ ≦ Tj ≦125OC).
Please be sure that the power consumption does not exceed the power dissipation rating, 1300mW. If the power consumption exceeds
the power dissipation rating and the operating junction temperature rises more than the rating, 125OC, the IC enters thermal shutdown
state.
■OUTPUT VOLTAGE ADJUSTMENT
With the adjustable XB1085K12BJR, a 1.25V reference voltage is fixed between the VOUT pin and the ADJ pin and the external
resistors R1 and R2 are used to set the output voltage.
Please set it so that an electric current (IR1) flowing through R1 is as above 10mA.
The output voltage is given by the following equation.
5/12
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| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ XB1085.PDF Datasheet ] | |
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| Part Number | Description | MFRS |
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