Adjustable Voltage Output Multifunction 2A High Speed LDO Regulator

XC6230 Series

　Based on a CMOS process, the XC6230 series are high-speed LDO regulators with a maximum output current of 2A.

A Pch driver Tr with a low ON resistance of 0.17Ω is incorporated in the IC, and stable output can be obtained even

when the dropout voltage is small, making this product ideal for a battery voltage or the end stage of a DC/DC converter.

Rush current protection, reverse current protection, and thermal shutdown protection circuits are incorporated as

protective functions, and the IC is housed in the USP-6C package to enable space-saving mounting as a protective

function IC. Also, an adjustable output voltage function enables any voltage to be set within the range 1.2V to 5.0V, and

an adjustable current limiting function enables any current to be set within the range 0.3A to 2.5A.

www.torexsemi.com October 2015●Values shown in this sheet can be changed without any prior notice.

New Product Leaflet

USP-6C(1.8x2.0x0.6mm)

Internal Pch driver Tr with a low ON resistance111

SALES

VSS

VIN VOUT

CE

CLCIN

INPUT

R22

VOFB

ILIM

RILIM

VIN

R21

VSS

VIN VOUT

CE

CLCIN

INPUTR21

R22

VOFB

ILIM

RILIM

VIN

Adjustable output voltage Adjustable current limit

The current limit can be set within the range of 0.3A to2.5A by changing the value of the external resistor (RILIM).

0.0

1.0

2.0

3.0

4.0

5.0

6.0

0.0 1.0 2.0 3.0 4.0 5.0 6.0

XC6230

Input Voltage : VIN(V)

Ta=25℃CIN=2.2μF(ceramic), CL=4.7μF(ceramic)

VOUT_SET=5.0V

VOUT_SET=3.3VVOUT_SET=4.0V

VOUT_SET=1.8VVOUT_SET=1.2V

VOUT_SET=2.5V

Out

put V

olta

ge :

VO

UT(

V)

XC6230VOUT_SET=3.3V,Ta=25℃

CIN=2.2μF(ceramic), CL=4.7μF(ceramic)D

ropo

ut V

olta

ge :

Vdi

f(mV

)

Output Current : IOUT(mA)

0

50

100

150

200

250

300

350

400

500 750 1000 1250 1500 1750 2000

VOUT_SET=3.3V

0

Out

put V

olta

ge :

VO

UT(

V)

VOUT_SET=1.2V,Ta=25℃,

Output Current : IOUT(mA)

XC6230(VOUT_SET=1.2V)VIN=2.2V,CIN=2.2μF(ceramic),CL=4.7μF(ceramic)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

500 1000 1500 2000 2500 3000

ILIM_SET=0ΩILIM_SET=13.5kΩILIM_SET=36kΩ

ILIM_SET=100kΩILIM_SET=200kΩ

Output Voltage vs. Input Voltage Dropout Voltage vs. Output Current

The output voltage can be set within the range of 1.2V to 5.0V by changing the value of th external resistors (R21, R22).

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0

Out

put V

olta

ge :

VO

UT(

V)

Input Voltage : VIN(V)

XC6230VOUT_SET=3.3V,Ta=25℃

CIN=2.2μF(ceramic), CL=4.7μF(ceramic)

VIN

IOUT=1000mAIOUT=500mA

IOUT=2000mA

At IOUT=1000mA, Dropout=170mV

New Product Leaflet

Adjustable Voltage Output Multifunction 2A High Speed LDO Regulator　XC6230 Series

www.torexsemi.com October 2015

Enhanced Protection Features222SALESSALES

High-speed response333SALESSALES

Functions

Maximum output current

Output Voltage Accuracy

Supply current

Input voltage range1.2V±1.0％

2.0A

0.3A～2.5A-40℃～+105℃

Inrush Current Protection,Current Limit adjustable

0.17Ω(VOUT_SET=3.3V)45μA

Thermal shutdown, Short Protection1.7V～6.0V

Features

Reverse Current Protection, Output Voltage adjustable

ON resistance

Output voltage settinng range 1.2V～5.0V

CL High Speed DischargeCurrent limit setting range

Operating Ambient Temperature

Inrush Current ProtectionWhen the IC starts, this function limits the current that suddenly flows from the input pin (VIN) to the output pin (VOUT) to charge the output stabilization capacitor (CL). When CL=4.7μF, the rush current is limited to 500mA or less, making it possible to design a safer circuit.

When the output voltage is higher than the input voltage, the reverse current protection function prevents current that flows in reverse from the output pin (VOUT) to the input pin (VIN).

Reverse Current Protection

A thermal shutdown (TSD) circuit is incorporated to protect the IC from overheating. When the junction temperature reaches the detection temperature (150℃), this function forcibly shuts the driver transistor OFF.

Thermal Shutdown

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

1.7

1.9

2.1

2.3

2.5

2.7

2.9

3.1

3.3

3.5

3.7

Cur

rent

(A)

Vol

tage

(V)

Time : 10 (μsec/div)

Output Currrent

500mA0.1mA

VOUT_SET=3.3V, IOUT=0.1⇔500mA, tr=5μs, Ta=25℃VIN=3.8V,CIN=2.2μF(ceramic), CL=4.7μF(ceramic)

Output Voltage

Load Transient Response

XC6220XC6230

Power Supply Rejection Ratio

Pow

er S

uppl

y R

ejec

tion

Rat

io :P

SR

R(d

B)

Frequency : f(kHz)

0

10

20

30

40

50

60

70

80

0.1 1 10 100 1000

VOUT_SET=3.3V,VIN=4.3V+0.5Vp-pAC,Ta=25℃IOUT=100mA,CIN=2.2μF(ceramic),CL=4.7μF(ceramic)

XC6220

XC6230

XC6227

●Values shown in this sheet can be changed without any prior notice.

IRUSH(ILIM=2.5A) IRUSH(ILIM=0.3A)CE VOUT(ILIM=2.5A) VOUT(ILIM=0.3A)

Cur

rent

(A)

Vol

tage

(V)

Time : 10 (μsec/div)

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

1.0

0.8

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

-0.1

-0.2

CE Input Voltage

Output Voltage

Rush Current

VOUT_SET=1.2V,VIN=2.2V,IOUT=0mA,Ta=25℃CIN=2.2μF(ceramic),CL=4.7μF(ceramic)

Vol

tage

(V)