TOREX XC6501 User Manual

XC6501

ETR03037-007

200mA High Speed LDO Regulator, Output Capacitor-Less, Low Power Consumption

■GENERAL DESCRIPTION

The XC6501 series is a high speed, low noise CMOS LDO regulator that can provide stable output voltages even without a load capacitor C externally. The series consists of a reference voltage source, driver transistor, error amplifier, current limit circuit, and phase compensation circuit.

The CE function enables the circuit to be put into stand-by mode by inputting a low level signal to the CE pin thereby reducing current consumption from an already low 13μA (in operation) to less than 0.1μA. In the stand-by mode, if a C the electric charge stored at CL can be discharged via the internal auto-discharge switch and as a result, the V returns to the V

The current limit fold-back circuit operates as a short circuit protection and a current limiter function for the output pin.

■APPLICATIONS

●Mobile phones （RF, NFC, I/O etc.）

●Portable games

●Camera modules

●Wireless LAN modules

●LCD modules

●Bluetooth

●Digital-TV tuners

. This is possible because phase compensation is carried out internally unlike other LDOs where it is done

L

capacitor is used,

L

pin quickly

OUT

level.

SS

■FEATURES

:

Maximum Output Current Operating Voltage Range Output Voltage Range Output Voltage Accuracy Dropout Voltage Low Power Supply Stand-by Current Ripple Rejection Protection Circuits

Output capacitor is not required C

High Speed Auto Discharge

L

Operating Ambient Temperature Packages

Environmentally Friendly

200mA

:

1.4～6.0V

:

1.2～5.0V

:

±1% or ±0.02V

:

150mV＠I

:

13μA ＠V

:

Less than 0.1μA

:

50dB＠f=1kHz,V

:

Current limit （300mA, TYP.）

Short circuit protection

:

Internal phase compensation

:

-40℃～+85℃

:

SOT-25, SSOT-24, USP-4, USPN-4,USP-3

:

EU RoHS Compliant, Pb Free

=100mA, V

OUT

=2.8V

OUT

=2.8V

OUT

=2.8V

■

TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

3.2

3.0

(V)

OUT

2.8

2.6

2.4

2.2

Output Voltage: V

2.0

XC6501 Series

Without CL

C

し

無

L

Output Current

Time (40μs/div)

Ta= 25℃,tr=tf=5μs

C

=0.1μF (ceramic)

IN

CL=1.0μF

300

250

200

150

100

50

0

1/23

(mA)

OUT

Output Current: I

XC6501 Series

■PIN CONFIGURATION

*The heat dissipation pad of the USP-4 package is reference to solder as the reference mount pattern and metal mask pattern for mounting strength. The mount pattern should be electrically opened or connected to the V

■PIN ASSIGNMENT

PIN NUMBER

USP-3 USP-4 SSOT-24 SOT-25 USPN-4

1 4 4 1 4 VIN Power Supply Input

2 1 3 5 1 V

3 2 2 2 2 VSS Ground

- 3 1 3 3 CE ON/OFF Control

- - - 4 - NC No Connection

(No.2) pin.

SS

PIN NAME FUNCTIONS

Output

OUT

■FUNCTION CHART

1)XC6501 series A/B type

PIN NAME SIGNAL STATUS

L OFF

CE

2)XC6501 series C/D type

PIN NAME SIGNAL STATUS

CE

H ON

OPEN Undefined

L OFF

H ON

OPEN OFF

2/31

■PRODUCT CLASSIFICATION

●Ordering Information

XC6501①②③④⑤⑥-⑦

DESIGNATOR ITEM SYMBOL DESCRIPTION

①

②③

④

⑤⑥-⑦

(*1)

The “-G” suffix denotes Halogen and Antimony free as well as being fully RoHS compliant.

(*2)

USP-3 is available only for XC6501P series.

(*1)

Regulator Type

Output Voltage

Output Voltage Type

[Accuracy]

Packages

(Order Unit)

A CE High Active, Without CE Pull-down, Without CL discharge

B CE High Active, Without CE Pull-down, With CL discharge

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

D CE High Active, With CE Pull-down, With CL discharge P 3 pin, without CE pin (USP-3)

12～50 ex.)28V → ②=2, ③=8

1

A

HR USP-3

HR-G USP-3

0.1V increments ex.)1.80V → ②=1, ③=8, ④=1 [±0.02V @ 1.2V～1.9V, ±1% @ 2.0V～5.0V]

0.05V increments ex.)1.85V → ②=1, ③=8, ④=A

[±0.02V @ 1.25V～1.95V, ±1% @ 2.05V～4.95V]

(*2)

(3,000/Reel)

(*2)

(3,000/Reel)

GR USP-4 (3,000/Reel)

GR-G USP-4 (3,000/Reel)

NR SSOT-24 (3,000/Reel)

NR-G SSOT-24 (3,000/Reel)

MR SOT-25 (3,000/Reel)

MR-G SOT-25 (3,000/Reel)

7R-G USPN-4

(5,000/Reel)

XC6501

Series

3/31

XC6501 Series

■BLOCK DIAGRAMS

1) XC6501 Series A type

3) XC6501 Series C type

2) XC6501 Series B type

4) XC6501 Series D type

5) XC6501 Series P type

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

＊図のダイオードは、静電保護用のダイオードと寄生ダイオードです。

4/31

■ ABSOLUTE MAXIMUM RATINGS

PAR AMETER SYMBOL RATINGS UNITS

Input Voltage VIN -0.3～+6.5 V Output Current I Output Voltage V

400

OUT

-0.3～VIN+0.3 or +6.5

OUT

CE Input Voltage VCE -0.3～+6.5 V

Power Dissipation

USPN-4

USP-3

USP-4

SSOT-24

SOT-25

Pd

600 (PCB mounted)

1000 (PCB mounted)

500 (PCB mounted)

600 (PCB mounted)

Operating Ambient Temperature Topr -40～+85 ℃

Storage Temperature Tst g -5 5～+125 ℃

* All voltages are described based on the VSS pin.

(*1) I

≦Pd/（VIN-V

OUT

(*2) The maximum value should be V

(*3) The power dissipation figure shown is PCB mounted and is for reference only. Please refer to page 24~28 for details.

OUT

）

+0.3 or +6.5 in the lowest.

IN

(*1)

mA

100

(*3)

(*2)

V

120

(*3)

120

150

(*3)

mW

250

(*3)

XC6501

Series

5/31

XC6501 Series

■ELECTRICAL CHARACTERISTICS

●XC6501 Series A/B/C/D Type

PAR AMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS

(*2)

Output Voltage V

Maximum Output

Current

OUT(E)

I

OUTMAX

Load Regulation ΔV

(*4)

Dropout Voltage

Supply Current I

Stand-by

Current

Line Regulation

（ΔV

I

ΔV

IN・VOUT

Input Voltage V

Output Voltage

Temperature

Characteristics

Rejection Ratio

ΔV

（ΔTopr・V

PSRR

Current Limit I

Short - Circuit

Current

CE High Level

Voltage

CE Low Level

Voltage

Current

I

SHORT

V

CE Low Level

Current

CL

Auto-Discharge

(*7)

Resistance

R

V

(*1)

V

VCE=VIN 200 - - mA ①

VCE=VIN、0.1mA≦I

OUT

Vdif VCE=VIN、I

V

SS

V

STBY

V

/

OUT

）

V

1.4 - 6.0 V ①

IN

V

/

OUT

）

-40℃≦To pr ≦85℃

OUT

V

LIM

V

level

1.0 - 6.0 V ①

CEH

VSS - 0.25 V ①

CEL

I

V

CEH

I

V

CEL

VIN=6.0Ｖ、V

DCHG

V

≦1.95V

OUT(T)

CE=VIN、IOUT

OUT(T)

CE=VIN、IOUT

IN=VCE

=6.0V、VCE=VSS - 0.01 0.1 μA ②

IN

OUT(T)

CE=VIN、IOUT

OUT(T)

=｛V

IN

CE=VIN、IOUT

OUT(T)

=5.75VDC+0.5Vp-pAC

IN

CE=VIN、IOUT

CE=VIN

CE=VIN、VOUT

CE=VIN

=6.0Ｖ、V

IN

=10mA

≧2.0V

=10mA

≦100mA - 15 45 mV ①

OUT

=100mA - E-1

OUT

=6.0V、I

=0mA E-2

OUT

+0.5V≦VIN≦6.0V、

=30mA

≦4.75V

+1.0｝VDC+0.5Vp-pAC

OUT(T)

=30mA、f=1kHz Power Supply

≧4.80V

=30mA、f=1kHz

210 300 - mA ①

is short-circuited at the VSS

=6.0V

XC6501A/B -0.1 - 0.1 CE High Level

XC6501C/D 3.5 6.0 10

-0.1 - 0.1 μA ①

=1.2V、VCE=VSS - 250 300 Ω

OUT

=5.0V、VCE=VSS - 400 480 Ω

OUT

－0.02

×0.99

(*3)

V

OUT（T

）

(*6)

μA ②

(*3)

＋0.02

(*3)

×1.01

(*5)

mV ①

- 0.10 0.20 %/V ①

- ±100 - ppm/℃ ①

- 50 - dB ③

- 25 - mA ①

Ta =2 5℃

CIRCUIT

V ①

μA ①

①

Notes: Unless otherwise stated regarding input voltage conditions, V

*1: V *2: V

*3: MIN and MAX values of V

*4: Vdif={V

: An actual output voltage when an amply stabilized(V

OUT(E)

: Nominal output voltage value

OUT(T)

are shown in the voltage table “E-0”.

OUT(E)

– V

OUT1

}

appears as input voltage is gradually decreased.

OUT1

IN1

: The input voltage when V

V

IN1

V

: A voltage equal to 98% of the output voltage when an amply stabilized I

OUT1

IN=VOUT(T)

(*2)

+1.0V.

+1.0V) is supplied with constant I

OUT(T)

OUT (VOUT(T)

*5: Please refer to page E-1. *6: Please refer to page E-2. *7: This function is built in the XC6501B/D series only.

The XC6501A/C series discharges by only R1+ R2 resistors as shown in the block diagrams.

6/31

.

OUT

+1.0V) is input.

XC6501

Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC6501 Series P Type

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT

}

V

I

ΔV

(ΔVIN・

（

ΔTopr・V

PSRR

Output Voltage

Maximum Output

Current

Output Voltage

Dropout Voltage

(*4)

Supply Current

Line Regulation

Input Voltage

Output Voltage

Temperature

Characteristics

Power Supply

Rejection Ratio

Current Limit

Short Circuit

Current

Notes: Unless otherwise stated regarding input voltage conditions, V

*1: V *2: V

*3: MIN and MAX values of V

*4: Vdif={V

*5: Please refer to page E-1. *6: Please refer to page E-2.

: An actual output voltage when an amply stabilized(V

OUT(E)

: Nominal output voltage value

OUT(T)

– V

IN1

OUT1

V

: The input voltage when V

IN1

V

: A voltage equal to 98% of the output voltage when an amply stabilized I

OUT1

(*2)

V

OUT(E)

V

I

(*1)

I

200 - - mA

OUTMAX

ΔV

OUT

/

)

0.1mA≦I

VIN=6.0V、I

V

I

OUT

V

I

dif

ISS

OUT

V

≦1.95V

OUT(T)

=10mA

OUT

≧2.0V

OUT(T)

=10mA

OUT

≦100mA

OUT

=100mA - E-1

OUT

=0mA

OUT

+0.5V≦VIN≦6.0V、

OUT(T)

=30mA

OUT

（*3）

-0.02

V

（*3）

×0.99

- 15 45 mV

E-2

- 0.10 0.20 %/V

OUT(T)

(*6)

+0.02

×1.01

(*5)

mV

（*3）

VIN 1.4 - 6.0 V

ΔV

/

I

OUT

）

=30mA

OUT

-40℃≦Topr≦85℃

V

≦4.75V

OUT(T)

VIN=｛V

OUT(T)

I

=30mA、f=1kHz

OUT

V

≧4.80V

OUT(T)

- ±100 - ppm

+1.0｝VDC+0.5Vp-pAC

- 50 - dB

VIN=5.75VDC+0.5Vp-pAC

I

=30mA、f=1kHz

OUT

I

210 300 - mA

LIM

I

V

SHORT

are shown in the voltage table “E-0”.

OUT(E)

OUT1

is short-circuited at the VSS level - 25 - mA

OUT

(*2)

IN=VOUT(T)

OUT(T)

+1.0V.

+1.0V) is supplied with constant I

OUT

.

appears as input voltage is gradually decreased.

OUT (VOUT(T)

+1.0V) is input.

Ta =2 5℃

V

μA ②

①

③

①

7/31

XC6501 Series

■ELECTRICAL CHARACTERISTICS (Continued)

●Voltage Chart

18

19

20

E-0 E-1 E-2

NOMINAL

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

3.00 2.9700 3.0300

3.05 3.0195 3.0805

OUTPUT

VOLTAGE

(V) (mV)

V

OUT(E)

MIN. MAX. TYP. MAX. MIN. TYP. MAX.

V

DROPOUT

VOLTAGE

ISS

dif

440 690

300 610

260 530

230 470

200 430

190 410

210 380

150 360

SUPPLY

CURRENT

(μA)

11 17

5

12

6

13

7 14

8/31

■ELECTRICAL CHARACTERISTICS (Continued)

●Voltage Table (continued)

E-0 E-1 E-2

XC6501

Series

NOMINAL VOLTAGE

(V)

V

OUT(T)

3.10 3.0690 3.1310

3.15 3.1190 3.1820

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

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

4.05 4.0095 4.0905

4.10 4.0590 4.1410

4.15 4.1085 4.1915

4.20 4.1580 4.2420

4.25 4.2075 4.2925

4.30 4.2570 4.3430

4.35 4.3065 4.3935

4.40 4.3560 4.4440

4.45 4.4055 4.4945

4.50 4.4550 4.5450

4.55 4.5045 4.5955

4.60 4.5540 4.6460

4.65 4.6035 4.6965

4.70 4.6530 4.7470

4.75 4.7025 4.7975

4.80 4.7520 4.8480

4.85 4.8015 4.8985

4.90 4.8510 4.9490

4.95 4.9005 4.9995

5.00 4.9500 5.0500

OUTPUT

VOLTAGE

(V) (mV)

V

OUT(E)

MIN. MAX. TYP. MAX. MIN. TYP. MAX.

DROPOUT

VOLTAGE

V

150 360

140 350

130 340

120 330 8 16

SUPPLY

CURRENT

ISS

dif

7

(μA)

14

21

15

22

23

9/31

XC6501 Series

■OPERATIONAL EXPLANATION

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 is controlled & stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the CE pin's signal.

The XC6501B/D series can discharge the electric charge in the output capacitor C enables a whole IC circuit turn off, is inputted via the N-channel transistor located between the V shown in the BLOCK DIAGRAM. The CL auto-discharge resistance value is set at 400Ω(V The discharge time of the output capacitor C setting time constant of a C

auto-discharge resistance value R

L

the output voltage after discharge via the N-channel transistor is calculated by the following formulas.

<Current Limiter, Short-Circuit Protection> The XC6501 series’ fold-back circuit operates as an output current limiter and a short protection of the output pin. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. When the output voltage is shorted to the V

SS

<CE Pin> The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6501 series. In shutdown mode output at the V

pin will be pulled down to the VSS level via R1 & R2. However, as for the XC6501B/D series, the C

OUT

resistor is connected in parallel to R1 and R2 while the power supply is applied to the V reaches the V

level becomes short. The output voltage becomes unstable, when the CE pin is open. If this IC is used with

SS

the correct output voltage for the CE pin, the logic is fixed and the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry when medium voltage is input.

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

OUT

XC6501 Series B Type

, when a low signal to the CE pin, which

L

pin and the V

OUT

=5.0V @ VIN=6.0V at typical).

OUT

is set by the CL auto-discharge resistance R and the output capacitor CL. By

L

and an output capacitor value CL as τ (τ=C x R

DCHG

-t/

V= V

OUT(E)

or an expanded formula is

ｔ=τ×ln（V

×e

OUT(E)

τ

/V）

V : Output voltage after discharge V

: Output voltage

OUT(E)

t : Discharge time τ：R

DCHG×CL

R

DCHG：CL

C

：Output capacitor

L

auto-discharge resistance

, its current flow reached and minimized to about 25mA.

pin. Therefore, time until the V

IN

pin as

SS

DCHG

auto-discharge

L

OUT

),

10/31

TOREX XC6501 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual