TOREX XB1085 User Manual

ETR0324-005b

■GENERAL DESCRIPTIO N

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 (C
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 disabl ed for protectio n 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

● High efficiency linear regulators

● Battery chargers

● DVD drives

● Set top boxes

● Various battery drive equi pment

■TYPICAL APPLICATION CIRCUITS

VIN

CIN=10μF

CIN=10uF

(Tantalum)

(Tantalum)

XB1085P Series

VIN VOUT

VSS

VIN

CIN=10μF

CIN=10uF

(Tantalum)

XB1085K Series

VIN VOUT

ADJ

(Tantalum)

VOUT=VREF×(1+R2/R1) + IADJ×R2

IN) and 22μF (CL) of tantalum capacitors.

■FEATURES

Maximum Output Current
Maximum Operating Voltage
Output Voltage

Externally Set

Output Voltage Accuracy
Dropout Voltage
Line Regulation
Load Regulation
Reference Voltage Pin Current
Overcurrent Protection Circuit Built-In
Thermal Protection Circuit Built-In
Package
Environmentally Friendly

■TYPICAL PERFORMANCE
CHARACTERISTICS

●Output Voltage vs. Output Current

IOUT

CL=22μF

CL=22uF

(Tantalum)

(Tantalum)

3.50

3.00

2.50

2.00

1.50

1.00

0.50

Output Voltage: VOUT(V)

0.00
0 600 1200 1800 2400 3000

Output Current: IOUT (mA)

R1

R2

IOUT

CL=22μF

CL=22uF

(Tantalum)

(Tantalum)

: More than 3.0A (within Pd)
: 12V
: 1.5V, 1.8V, 2.5V, 3.3V,

5.0V, (XB1085P)

(XB1085K/ Reference

Voltage 1.25V (TYP.))
: ±1% ( Tj =25℃)
: 1.3V @ I

OUT=3.0A (TYP.)

: 0.015% (TYP.) <ADJ>
: 0.1% (TYP.) <ADJ>
: Less than 120μA <ADJ>

: TO-252
: EU RoHS Compliant

XB1085P331

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

CIN=1 0μF(Tantal),CL= 22μF(Tan tal)

VIN=4.9V

VIN=4.9V

Ta=85℃
Ta=25℃
Ta=0℃

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XB1085 Series

■PIN CONFIGURATION

VSS/ADJ

■PIN ASSIGNMENT

PIN NUMBER

TO-252

1 VSS / ADJ Ground / Reference Voltage
2 VOUT Output
3 VIN Input

■PRODUCT CLASSIFICATION

●Ordering Information

XB1085①②③④⑤⑥-⑦

DESIGNATOR DESCRIPTION SYNBOL DESCRIPTION

① Type of Regulators

②③④

Output Voltage and Output

⑤⑥-⑦

(*1)

The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.

PIN NAME FUNCITONS

(*1)

Voltage Accuracy

Package

(Oder Unit)

VOUT

V

OUT

(Tab)

(Tab)

2

2

2

2

V

OUT

VOUT

1

13

/

V

SS

ADJ

3

V

VIN

IN

TO-252

(TOP VIEW)

P Fixed V

K Adjustable (Externally Set)
151 V
181 V
251 V
331 V
501 V
12B V

JR TO-252 (2,500/Reel)

JR-G TO-252 (2,500/Reel)

OUT

=1.5V (±1%)

OUT

=1.8V (±1%)

OUT

=2.5V (±1%)

OUT

=3.3V (±1%)

OUT

=5.0V (±1%)

OUT

=1.25V (±1%)

REF

2/11

A

■BLOCK DIAGRAM

■

BSOLUTE MAXIMUM RATINGS

*Diodes inside the circuit are ESD protection diodes.

Thermal

Protection

Current

Limit

Error
Amp

Bandgap

Reference

PARAMETER SYMBOL RATINGS UNIT

Input Voltage VIN 18 V

Power Dissipation

TO-252

Pd 1300

Operating Junction Temperature Tj 125

Storage Temperature Range

Note:
*1: Stresses greater than those listed above ratings may cause permanent damage to the device.
*2: The rating of the power dissipation is determined when mounted on the PCB.

Tstg - 55 ~ 125

VOUTVIN

VSS/
ADJ

(*2)

mW

℃
℃

XB1085

Series

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XB1085 Series

■ELECTRICAL CHARACTERISTICS

XB1085PxxxJ

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT CIRCUIT

V

OUT

(1.5V)

V

OUT

(1.8V)

V

2.475 2.5 2.525

Output Voltage

OUT

(2.5V)

V

3.267 3.3 3.333

OUT

(3.3V)

V

OUT

(5.0V)

⊿V

OUT1

(1.5V)

⊿V

OUT1

(1.8V)

⊿V

Line Regulation

OUT1

(2.5V) I

⊿V

OUT1

(3.3V) I

⊿V

OUT1

(5.0V)

⊿V

OUT2

(1.5V)

⊿V

OUT2

(1.8V)

⊿V

Load Regulation

OUT2

(2.5V) 0mA≦I

⊿V

OUT2

(3.3V) 0mA≦I

⊿V

OUT2

(5.0V)

Dropout Voltage Vdif ⊿V

Limit Current I

LIM

Supply Current IDD

Temperature Stability Ts

Note:
*1: O.T. denotes the specifications which apply over the operating junction Temperature range (0℃ ≦ Tj ≦125
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 125
state.

=4.5V, I

V

IN

V

=4.8V, I

IN

VIN=5.5V, I

VIN=6.3V, I

V

=8.0V, I

IN

3V≦VIN≦10V

=10mA

I

OUT

3.3V≦VIN≦10V
=10mA

I

OUT

OUT

OUT

OUT

OUT

OUT

=0mA

=0mA

=0mA

=0mA

=0mA

4V≦VIN≦10V - 0.5 6

=10mA O.T.

OUT

4.8V≦VIN≦10V - 0.5 6
=10mA O.T.

OUT

6.5V≦VIN≦10V
=10mA

I

OUT

V
0mA≦I

V
0mA≦I

VIN-V

VIN-V

V
0mA≦I

VIN-V

=3.0V

IN-VOUT

≦3.0A

OUT

=3.0V

IN-VOUT

≦3.0A

OUT

=3.0V - 3 15

OUT

≦3.0A O.T.

OUT

=3.0V - 3 15

OUT

≦3.0A O.T.

OUT

=3.0V

IN-VOUT

≦3.0A

OUT

OUT

=1%, I

OUT

=3.0V

=3.0A - 1.3 1.5 V ①

OUT

VIN=10V O.T.
VIN-V

I

OUT

=1.5V

OUT

=10mA

1.485 1.5 1.515

O.T.

(*1)

1.47 1.53

1.782 1.8 1.818

O.T.

O.T.

O.T.

(*1)

(*1)

(*1)

1.764 1.836

2.450 - 2.550

3.234 - 3.366

4.95 5 5.05

(*1)

O.T.

4.9 5.1

- 0.5 6

(*1)

O.T.

1 6

- 0.5 6

(*1)

1 6

O.T.

(*1)

1 6

(*1)

1 6

- 0.5 10

(*1)

O.T.

1 10

- 3 15

(*1)

O.T.

7 20

- 3 15

(*1)

O.T.

7 20

(*1)

7 20

(*1)

7 20

- 5 20

(*1)

O.T.

10 35

(*1)

(*1)

O.T.

- 0.5 - % -

Tj= 25℃ unless otherwise specified

V

V

V ①

V ①

V

mV ①

mV ①

mV ①

mV ①

mV ①

mV ①

mV ①

mV ①

mV ①

mV ①

3.2 4.5 - A ①

- 5 10 mA ②

O

C).

O

C, the IC enters thermal shutdown

①

①

①

4/11