XB1085_12 Datasheet, PDF (1/11 Pages) Torex Semiconductor – 3.0A Positive voltage Regulator

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 (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
C_CI_IN_N=₌1₁0μ_0uF_F
(T₍a_Tn_ata_nl_tu_am_lu) _m)
VSS
IOUT
(C^C(T_T^LLa_a⁼⁼n_n^2t2ta2_a2l^μu_luum^FmF)₎
XB1085K Series
VIN
VOUT
C_CI_IN_N=₌1₁0₀μ_uF_F
(Ta(nTtaalunmta)lum)
ADJ
IOUT
R1
C_CL_L=₌2₂2₂μ_uFF
(T_(Tan_at_na_tl_au_lm_um) ₎
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)
R2
VOUT=VREF×(1+R2/R1) + IADJ×R2
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