TOREX XC6225 User Manual

XC6225 Series

30mA High Speed LDO Regulator

■GENERAL DESCRIPTION

The XC6225 series is a high accuracy, low noise, and low dropout CMOS LDO regulator. The series includes a
reference voltage source, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit.
The CE function enables the entire circuit to be turned off by a low level input signal to the CE pin. In this stand-by
state, the XC6225B series can discharge the electric charge stored at the output capacitor through the internal
auto-discharge switch, and as a result the V
(CL) is also compatible with low ESR ceramic capacitors. Output voltage is selectable in 0.05V increments within a
range of 0.8V~5.0V. The current limit fold-back circuit works as a short circuit protection as well as the output current
limiter. The series achieves a fast response with only 25μA of low power consumption. The current limit is set to
50mA (TYP.) so that the device is optimized to protect the circuit from over-current. It is ideally suited for applications
requiring 30 mA or less.
A small USP-4 package makes high density mounting possible.

■APPLICATIONS

● Cellular phones

● Cordless phones,
Wireless communication equipment

● Portable games

● Cameras, VCRs

● Portable AV equipment

● PDAs

■TYPICAL APPLICATION CIRCUIT

OUT pin quickly returns to the VSS level. The output stabilization capacitor

■FEATURES

Output Current : 30mA <50mA (TYP.) Limit>
Dropout Voltage : 70mV@ IOUT=30mA, VOUT=3.2V
Operating Voltage Range : 2.5V ~ 6.0V

: 0.8V~5.0V (0.05V increments) Output Voltage Range

Accuracy

Low Power Consumption
Stand-by Current

High Ripple Rejection : 70dB @ 1kHz
Operating Temperature
Range
Output Capacitor : 1.0μF ceramic capacitor
CL High-Speed Auto-Discharge (XC6225B)
Low Output Noise
Packages : USP-4, SOT-25

Environmentally Friendly

2% (VOUT>1.5V)

: +

0.03V (VOUT≦1.45V)

+
: 25μA (TYP.)
: Less than 0.1μA

: -40℃~+85℃

SSOT-24

: EU RoHS Compliant, Pb Free

(under development)

ETR0342-003

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XC6225 Series

■PIN CONFIGURATION

*The heat sink pad of the USP-4 is recommended

to be soldered to enhance the strength. Please

refer to the reference mount pattern and metal

mask pattern. This pad should be electrically

opened or connected to the V

SS (No.2) pin.

(under development)

■PIN ASSIGNMENT

PIN NUMBER

USP-4 SOT-25 SSOT-24

4 1 4 VIN

1 5 3 V

2 2 2 VSS

3 3 1 CE ON/OFF Control

- 4 - NC No Connection

*SSOT-24 is under development.

PIN NAME FUNCTIONS

Power Input

OUT

Output

Ground

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■PRODUCT CLASSIFICATION

●Ordering Information

XC6225①②③④⑤⑥-⑦

DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION

①

② ③

④

Type of Regulator

(*1)

Output Voltage

Output Voltage

Accuracy

A CE High Active, Without CL discharge function

B CE High Active, With CL discharge function

08～50 e.g. 3.0V → ①=3, ②=0

nd

2

A

Output voltage is { x.x0V } (the 2
2% (V

≧1.5V), Within ±0.03V (V

OUT(T)

Output voltage is { x.x5V } (the 2
±2% (V

≧1.55V), Within ±0.03V (V

OUT

decimal place is “0”)

OUT(T)

nd

decimal place is “5”)

OUT

XC6225

Series

≦1.40V)

≦1.45V)

⑤⑥-⑦

(*1)

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

(*2)

The device orientation is fixed in its embossed tape pocket.

For reverse orientation, please contact your local Torex sales office or representative.

(Standard orientation: ⑤R-⑦, Reverse orientation: ⑤L-⑦)

Packages

Taping Type

(*2)

GR-G USP-4
MR-G SOT-25

NR-G

SSOT-24（under development）

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XC6225 Series

■BLOCK DIAGRAMS

*Diodes inside the circuit are an ESD protection diode and a parasitic diode.

●XC6225A Series

●XC6225B Series

■ABSOLUTE MAXIMUM RATINGS

PAR AMET ER SYMBOL RATINGS UNITS

Input Voltage VIN V
Output Current I
Output Voltage V

CE Input Voltage VCE VSS-0.3～+6.5 V

Power Dissipation

Operating Temperature Range Topr -40～+85 ℃

Storage Temperature Range Tstg -55～+125 ℃

(*1)

I

≦ Pd / (VIN-V

OUT

*SSOT-24 is under development.

OUT

)

USP-4 120

SOT-25 250

SSOT-24

OUT

OUT

Pd

-0.3～+6.5 V

SS

400

V

SS

(*1)

mA

-0.3～VIN+0.3 V

150

Ta=25℃

mW

4/15

XC6225

Series

■ELECTRICAL CHARACTERISTICS

●XC6225A/B Series Ta=25℃

PAR AMET ER SYMBOL CONDITIONS

V

≧1.50V

OUT(T)

Output Voltage

V

OUT(E)

(*2)

V

V
V

CE=VIN

OUT(T)

CE=VIN

, I

=10mA

OUT

≦1.45V

, I

=10mA

OUT

VCE=VIN
V

IN

Output Current I

OUTMAX

1.5V≦V
V

CE=VIN

V

IN

0.8V≦V

V

Load Regulation ΔV

Dropout Voltage

(*5)

Vdif I

OUT

Supply Current ISS V

CE=VIN

0.1mA≦I

OUT

IN=VOUT

= V

=2.5V

=30mA, VCE=VIN

OUT(T)

OUT(T)

OUT(T)

+1.0V, I

+1.0V

≦30mA

OUT

≦5.0V

≦1.45V

=0ｍA - 25 50 μA ②

OUT

MIN. TYP. MAX.

（*4）

×1.02

+0.03

×0.98

（*3）

-0.03

（*3）

V

OUT(T)

30 50 - mA ①

- 5 12 mV ①

DROPOUT VOLTAGE

CHART

UNITS CIRCUIT

（*3）

（*3）

mV ①

V ①

Stand-by Current

Line Regulation

(ΔV

V

I

STBY

ΔV

/

OUT

IN・VOUT

=6.0V, VCE=VSS - 0.01 0.1 μA ②

IN

V

+0.5V≦VIN≦6.0V

OUT(T)

V

≧2.0V,

OUT(T)

V

)

2.5V≦VIN≦6.0V
V
V

CE=VIN

OUT(T)

CE=VIN

, I

=10mA

OUT

≦1.95V

, I

=10mA

OUT

- 0.01 0.20 %/V ①

Input Voltage VIN 2.5 - 6.0 V ①

Output Voltage

Temperature

Characteristics

ΔV

OUT

(ΔTa ・V

/

OUT

V

CE=VIN

-40℃≦Ta ≦85℃

)

, I

OUT

=30mA

- ±100 -

ppm/

℃

①

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