TOREX XC6229 User Manual

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A

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XC6229 Series

300mA Ultra Small High Speed LDO Regulator, Built-in Inrush Current Protection

GENERAL DESCRIPTION

The XC6229 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout and low power consumption. Housed in the ultra-small LGA-4B01 (0.75 x 0.75, h=0.3mm MAX.) package, the XC6229 is ideal for space-saving design. The XC6229 consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a phase compensation circuit, a thermal shutdown circuit and an inrush current protection circuit.

The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series enables the electric charge at the output capacitor C quickly returns to the V

The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming technologies. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level.

PPLICATIONS

●Mobile devices

●Wireless communications

●Modules

●Mobile phones

■

TYPICAL APPLICATION CIRCUIT

SS level. The output stabilization capacitor CL is also compatible with low ESR ceramic capacitors.

L to be discharged via the internal switch, and as a result the VOUT pin

FEATURES

Maximum Output Current : 300mA Input Voltage Range : 1.6～5.5V Output Voltages : 2.0～4.0V （Accuracy ±1%）

1.2～1.95V （Accuracy ±20mV）

0.05V increments Dropout Voltage : Low Power Consumption : 100μA Stand-by Current : 0.1μA High Ripple Rejection : 80dB＠f=1kHz Protection Circuits : Current Limit (400mA) Short Circuit Protection Over Heat Protection Inrush Current Protection Low ESR Capacitors : CIN =1.0μF, CL=1.0μF CE Function : Active High C Operating Ambient Temperature Small Package : Environmentally Friendly

80mV＠I

L

: -40℃〜+85℃

LGA-4B01 (0.75mm×0.75mm×h 0.3MAX.)

: EU RoHS Compliant, Pb Free

=150mA (V

OUT

High Speed Discharge

■TYPICAL PERFORMANCE CHARACTERISTICS

ETR0362-002a

=3.0V)

OUT

Load Transient Response

XC6229x251

tr = tf = 0.5μs, Ta = 25℃, I

= 3.5V, CIN = 1μF (ceramic), CL = 1μF (ceramic)

V

2.60

2.55

[V]

2.50

OUT

2.45

2.40

2.35

2.30

Output Voltage: V

2.25

2.20

IN

Output Voltage

Output Current

Time [20μs/div]

= 1⇔150mA

OUT

400 350 300 250 200 150 100 50 0

Output Current Iout[mA]

1/26



XC6229 Series

■BLOCK DIAGRAMS

V

CE

IN

Error

Amp

CFB

+

-

Voltage

Reference

CurrentLimit CurrentLimit

TSD

ON/OFF

Control

each

circuit

R1

Rdischg

R2

CE

V

OUT

V

SS

XC6229series Type D

* Diodes inside the circuits are ESD protection diodes and parasitic diodes.

■PRODUCT CLASSIFICATION

●Ordering Information

XC6229①②③④⑤⑥-⑦

DESIGNATOR

①

②③

④

⑤⑥-⑦

(*1)

ITEM SYMBOL DESCRIPTION

CE Active High

Type of Regulator

D

H

Without Inrush Current Protection With CE Pull-down, With C CE Active High With Inrush Current Protection With CE Pull-down, With CL discharge

Output Voltage

(

2nd decimal place)

Package

(Order Unit)

12～40 ex.) 2.80V → ②=2, ③=8, ④=please see down below.

1

B

±1％, In case of 2nd decimal place 0 (ex.2.80V → ④=1) ±1％, In case of 2nd decimal place 5 (ex.2.85V → ④=B)

1R-G LGA-4B01 (5,000 /Reel)

V

CE

IN

TSD

ON/OFF

Control

each

circuit

Error

Amp

CFB

+

-

Voltage

Reference

Non

Rush

R1

Rdischg

R2

CE

XC6229series Type H

discharge

L

V

OUT

V

SS

(*1)

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

2/26

■PIN CONFIGURATION

■PIN ASSIGNMENT

PIN NUMBER

LGA-4B01

3 VIN

2 V

1 VSS

4 CE

PIN NAME

Output

OUT

FUNCTIONS

Power Input

Ground

ON/OFF Control

XC6229

Series

■PIN FUNCTION ASSIGNMENT

CE LOGIC CONDITION

H Operation ON

L Operation OFF(Stand-by)

OPEN *

* For D and H types, CE pin voltage is fixed as L level because of internal pull-down resister.

■ABSOLUTE MAXIMUM RATINGS

PAR AMETER SYMBOL RATINGS UNITS

Input Voltage VIN

Output Current I Output Voltage V

CE Input Voltage VCE

Power Dissipation LGA-4B01 Pd

Operating Temperature Range Topr

Storage Temperature Range Tstg

(*1) I

(*2) This is a reference data taken by using the test board.

≦Pd/（V

OUT

IN-VOUT

）

500

OUT

IC OPERATION

-0.3～VSS+7.0

V

SS

V

SS

V

SS

(*1)

mA

-0.3～VIN+0.3

-0.3～VSS+7.0

150

600 (PCB mounted)

(*2)

-40～+85 ℃

-55～+125 ℃

V

V V

mW

3/26

XC6229 Series

■ELECTRICAL CHARACTERISTICS

●XC6229 Series, Type D／H

PAR AMET ER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUITS

Output Voltage V

Maximum Output Current I

Load Regulation

Dropout Voltage

Supply Current

Stand-by Current

Line Regulation

(ΔV

Input Voltage

Output Voltage

Temperature

Characteristics

Ripple Rejection Rate

(ΔTopr

Current Limit

Short Current

CE High Level Voltage

CE Low Level Voltage

CE High Level Current I

CE Low Level Current

I

CL Discharge Resistance R

V

≧2.0V, VCE=VIN, I

OUT(T)

(*1)

OUT(E)

V

CE=VIN

V

OUTMAX

VCE=VIN, 0.1mA≦I

ΔV

OUT

(*4)

V

Vdif

V

I

SS

V

I

STB

ΔV

/

OUT

)

IN・VOUT

- 1.6 - 5.5 V

V

IN

ΔV

/

OUT

・

V

)

OUT

PSRR

V

I

LIM

V

I

SHORT

- 1.0 - 5.5 V

V

CEH

- 0 - 0.3 V

V

CEL

V

CEH

V

CEL

V

DCHG

V

IN

CE=VIN

V

OUT(T)

V

IN

I

OUT

=｛V

OUT(T)

I

OUT

=5.5V, V

IN

＜2.0V,

V

OUT(T)

, I

=10mA

OUT

CE=VIN

, I

OUT

CE=VIN

CE=VSS

+0.5V≦VIN≦5.5Ｖ

, I

CE=VIN

OUT

CE=VIN、IOUT

-40℃≦Ta ≦85℃

V

＜2.5V

OUT(T)

=3.0VDC+0.5Vp-pAC

V

CE=VOUT(T)

=30mA, f=1kHz

≧2.5V

V

OUT(T)

+1.0｝VDC+0.5Vp-p

VCE=V

OUT(T)

=30mA, f=1kHz

CE=VIN

CE=VIN, VOUT=VSS

=5.5V 3.0 5.5 9.0 μA

CE=VIN

CE=VSS

=2.0V, VCE=VSS - 300 - Ω

OUT

=10mA

(*3)

V

OUT(T)

300 - - mA

≦300mA - 25 45 mV

OUT

=300mA - E-1 mV

- 100 220 μA

- 0.01 0.4 μA

=50mA

=10mA

+1.0V

AC

+1.0V

310 400 - mA

- 50 - mA

-0.1 - 0.1 μA

(*2)

×0.99

V

(*2)

-20mV

- 0.01 0.1 %/V

- ±100 -

- 80 - dB

V

OUT(T)

(*2)

V

OUT(T)

(*2)

V

OUT(T)

×1.01

+20mV

(*2)

ppm/℃

Inrush Current (H Type) Irush VIN=5.5V, VCE=0→5.5V - 150 - mA

Thermal Shutdown

Detect Temperature

Thermal Shutdown

Release Temperature

Thermal Shutdown

Hysteresis Width

NOTE:

Unless otherwise stated regarding input voltage conditions, V （*1）V

: Effective output voltage

OUT(E)

T

TSD

T

TSR

- T

TSR

T

TSD

(i.e. the output voltage when “V

（*2）V

: Nominal output voltage

OUT(T)

（*3）The standard output voltage is specified in V （*4）Vdif＝V

IN1－VOUT1

V

=The input voltage when V

IN1

V

=A voltage equal to 98% of the output voltage whenever an amply stabilized V

OUT1

(V

≧1.6V)

IN1

appears as input voltage is gradually decreased.

OUT1

Junction Temperature

IN=VOUT(T)

+1.0V” is provided at the VIN pin while maintaining a certain I

OUT(T)

±20mV where V

OUT（T

）

＋1.0V.

＜2.0V.

OUT（T

）

- 150 - ℃

- 120 - ℃

- 30 - ℃

+1.0V is input for every I

OUT(T)

OUT

value.)

OUT

.

Ta=25℃

V

①

V

①

②

①

③

①

④

①

⑤

①

4/26

■OUTPUT VOLTAGE CHART

●Voltage Chart 1

XC6229

Series

NOMINAL

OUTPUT

VOLTAGE

(V)

V

OUT(T)

1.20 1.1800 1.2200

1.25 1.2300 1.2700

1.30 1.2800 1.3200

1.35 1.3300 1.3700

1.40 1.3800 1.4200

1.45 1.4300 1.4700

1.50 1.4800 1.5200

1.55 1.5300 1.5700

1.60 1.5800 1.6200

1.65 1.6300 1.6700

1.70 1.6800 1.7200

1.75 1.7300 1.7700

1.80 1.7800 1.8200

1.85 1.8300 1.8700

1.90 1.8800 1.9200

1.95 1.9300 1.9700

2.00 1.9800 2.0200

2.05 2.0295 2.0705

2.10 2.0790 2.1210

2.15 2.1285 2.1715

2.20 2.1780 2.2220

2.25 2.2275 2.2725

2.30 2.2770 2.3230

2.35 2.3265 2.3735

2.40 2.3760 2.4240

2.45 2.4255 2.4745

2.50 2.4750 2.5250

2.55 2.5245 2.5755

2.60 2.5740 2.6260

2.65 2.6235 2.6765

2.70 2.6730 2.7270

2.75 2.7225 2.7775

2.80 2.7720 2.8280

2.85 2.8215 2.8785

2.90 2.8710 2.9290

2.95 2.9205 2.9795

OUTPUT VOLTAGE

(V)

V

OUT(E)

MIN. MAX. TYP.

DROPOUT VOLTAGE

(mV)

E-1

Vdif

MAX.

470 625

420 575

380 505

350 455

320 440

260 380

230 340

190 300

5/26

XC6229 Series

■OUTPUT VOLTAGE CHART (Continued)

●Voltage Chart 2

NOMINAL

OUTPUT

VOLTAGE

(V)

V

OUT(T)

OUTPUT VOLTAGE

(V)

V

OUT(E)

MIN. MAX.

DROPOUT VOLTAGE

(mV)

E-1

Vdif

TYP.

MAX.

3.00 2.9700 3.0300

3.05 3.0195 3.0805

3.10 3.0690 3.1310

3.15 3.1185 3.1815

3.20 3.1680 3.2320

3.25 3.2175 3.2825

3.30 3.2670 3.3330

3.35 3.3165 3.3835

3.40 3.3660 3.4340

3.45 3.4155 3.4845

3.50 3.4650 3.5350

160 260

3.55 3.5145 3.5855

3.60 3.5640 3.6360

3.65 3.6135 3.6865

3.70 3.6630 3.7370

3.75 3.7125 3.7875

3.80 3.7620 3.8380

3.85 3.8115 3.8885

3.90 3.8610 3.9390

3.95 3.9105 3.9895

4.00 3.9600 4.0400

6/26

XC6229

■OPERATIONAL EXPLANATION

XC6229 Series, Type D

The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-channel

MOSFET which is connected to the V

and stabilized by a system of negative feedback. The current limit circuit and short circuit protection operate in relation to the level of output current and heat dissipation. Further, the IC’s internal circuitry can be shutdown via the CE pin signal.

The XC6229 series needs an output capacitor C

(V

) and the ground pin (V

OUT

please connect an input capacitor (C

The XC6229 has current limiter and droop shape of fold-back circuit. When the load current reaches the current limit, the droop current

limiter circuit operates and the output voltage drops. When the output voltage dropped, the fold-back circuit operates and the output current goes to decrease. The output current finally falls at the level of 50mA when the output pin is short-circuited.

The IC's internal circuitry can be shutdown via the signal from the CE pin. In shutdown mode, the XC6229 series enables the electric

charge at the output capacitor (C

pin quickly returns to the V

When the junction temperature of the built-in driver transistor reaches the temperature limit, the thermal shutdown circuit operates and the

driver transistor will be set to OFF. The IC resumes its operation when the thermal shutdown function is released and the IC’s operation is automatically restored because the junction temperature drops to the level of the thermal shutdown release voltage.

) as close as possible. Please use the output capacitor (CL) is 1.0μF or larger. For a stable power input,

SS

level. The XC6229 series has a pull-down resistor at the CE pin inside, so that the CE pin input current flows.

SS

pin is then driven by the subsequent output signal. The output voltage at the V

OUT

for phase compensation. Please place an output capacitor (CL) at the output pin

L

) of 1.0μF between the VIN pin and the VSS pin.

IN

) to be discharged via the internal switch located between the V

L

The inrush current protection circuit is built in the XC6229 type H.

When the IC starts to operate, the protection circuit limits the inrush current from input pin (V

XC6229 Series, Type H

and VSS pins, and as a result the V

OUT

) to output pin (V

IN

OUT)

pin is controlled

OUT

to charge CL capacitor.

Series

OUT

7/26

XC6229 Series

■NOTES ON USE

1． For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be

exceeded.

2． Where wiring impedance is high, operations may become unstable due to the noise and/or phase lag depending on output

current. Please strengthen V

3． The input capacitor C

4. The type H is controlled with constant current start-up. Start-up sequence control is requested to draw a load current after the output voltage is raised up to around the internally fixed nominal output voltage.

5. Torex places an importance on improving our products and its reliability.

However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.

and the output capacitor CL should be placed to the as close as possible with a shorter wiring.

IN

and VSS wiring in particular.

IN

8/26

TOREX XC6229 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual