1/11

ETR0325-006

■GENERAL DESCRIPTION

The XB1086 is a series of low dropout positive voltage regulators with a high output current capability of 1.5A.

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.

■TYPICAL APPLICATION CIRCUITS

■APPLICATIONS

● High efficiency linear regulators

● Battery chargers

● DVD drives

● Set top boxes

● Various battery drive equipment

XB1086P Series

VIN

VOUT

VSS

IOUT

VIN

CIN=10uF

(Tantalum)

CL=22uF

(Tantalum)

XB1086K Series

VIN

VOUT

ADJ

IOUT

VIN

CIN=10uF

(Tantalum)

CL=22uF

(Tantalum)

R1

R2

VOUT=VREF×(1+R2/R1) + IADJ×R2

XB1086P331

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

300

600

900

1200

1500

Output Current: IOUT (mA)

Ta=85℃

Ta=25℃

Ta=0℃

VIN=4.9V

CIN=10uF(Tantal）、CL=22uF(Tantal）

■TYPICAL PERFORMANCE

CHARACTERISTICS

●Output Voltage vs. Output Current

■FEATURES

Maximum Output Current

: More than 1.5A (within Pd)

Maximum Operating Voltage

: 15V

Output Voltage

: 1.5V, 1.8V, 2.5V,

Externally Set

(XB1086K / Reference

Voltage 1.25V (TYP.))

Output Voltage Accuracy

: ±1% ( Tj =25℃)

Dropout Voltage

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

VIN=4.9V

CIN=10μF (Tantalum), CL=22μF (Tantalum)

CIN=10μF

CIN=10μF

CL=22μF

CL=22μF