XC6366C385ML [TOREX]

Switching Regulator/Controller;


型号：	XC6366C385ML
厂家：	Torex Semiconductor
描述：	Switching Regulator/Controller
文件：	总21页 (文件大小：1384K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

☆GO-Compatible

■APPLICATIONS

◆Input Voltage Range : 2.2~10.0V

◆Output Voltage Range : 1.5~6.0V(±2.5%)

◆Oscillator Frequency : 300kHz(±15%)

◆Maximum Duty Ratio : 100%

●Electronic information organizers

●Palmtops

●Cellular and portable phones

●Portable audio systems

●Various multi-function power supplies

◆High Efficiency

: 92%

◆PWM/PFM Switching Control (XC6366)

◆SOT-25 Package

■GENERAL DESCRIPTION

■FEATURES

The XC6365/66 series are multi-functional step-down DC/DC

converters with built-in high speed, low ON resistance drivers. An

output current of more than 1A is possible using an externally

connected transistor, coil, diode and capacitor.

Input Voltage Range : 2.2V~10V (VOUT type)

Output Voltage Range : 1.5V ~ 6.0V programmable in

100mV steps (±2.5%)

Oscillation Frequency : 300kHz (±15%)

Output voltage is programmable in 100mV steps between 1.5V to

6.0V (VOUT) (±2.5% accuracy). Further, with 1.0V of standard

voltage supply internal and using externally connected

components, output voltage can be set up freely (FB).

With a 300kHz switching frequency, the size of the external

components can be reduced.

Custom products for 180, 500kHz

Output Current

High Efficiency

Stand-by Capability : ISTB=0.5μA (MAX.)

Soft-start time set-up externally type possible

Internally set-up output voltage type possible (VOUT

: More than 1.0A

(VIN=5.0V, VOUT=3.0V)

: 92% (TYP.)

Control switches from PWM to PFM during light loads with the

XC6366 (PWM/PFM switchable) and the series is highly efficient

from light loads to large output currents.

)

In relation to soft-start time, both internally set-up 10msec types

(A,B) and external resistor or capacitor regulated types (C,D) are

available.

Externally set-up outut voltage type possible (FB)

Package : SOT-25

During stand-by time (CE pin "Low" ), current consumption is

reduced to less than 0.5 A.

With U.V.

L.O internal, the external Tr. will be forcibly switched off if

used below the stipulated voltage.

■TYPICAL PERFORMANCE

■TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

553

XC6365/6366 Series

■PIN CONFIGURATION

■PIN ASSIGNMENT

PIN NUMBER

PIN NAME

EXT/

FUNCTION

External Transistor Connection

Power Supply

VDD

GND

Ground

Chip Enable Soft-Start Capacitor Connection

with Soft-Start Externally Set-Up Types (C,D)

Output Voltage Monitor FB with Externally

Set-Up Types (B,D)

VOUT

(FB)

■PRODUCT CLASSIFICATION

●Selection Guide

554

XC6365/6366

Series

■PRODUCT CLASSIFICATION (Continued)

●Ordering Information

XC6365①②③④⑤⑥

XC6366①②③④⑤⑥

PWM control

PWM/PFM switching control

DESIGNATOR

DESCRIPTION

SYMBOL

DESCRIPTION

: VOUT type: Internally set-up, soft-start internally set-up

: FB type: Externally set-up, soft-start internally set-up

: VOUT type: Internally set-up, soft-start externally set-up

: FB type: Externally set-up, soft-start internally set-up

: VOUT type: 3.0V output → ②=3, ③=0

: FB type: 10 fixed → ②=1, ③=0 fixed

: 300kHz

Type of DC/DC Converter

①

Integer

Output Voltage

② ③

④

Oscillation Frequency

: 500kHz (custom)

: 180kHz (custom)

Package

: SOT-25 (SOT-23-5)

: Embossed tape, Standard feed

: Embossed tape, Reverse feed

⑤

⑥

Device Orientation

■PACKAGING INFORMATION

●SOT-25

555

XC6365/6366 Series

■MARKING RULE

①Represents product classification

PRODUCT SERIES

XC6365A

MARK

PRODUCT SERIES

XC6366A

MARK

①

②

③

④

XC6365B

XC6366B

XC6365C

XC6366C

XC6366D

XC6365D

SOT-25

(TOP VIEW)

②Represents integer of output voltage and oscillation frequency

OSCILLATION FREQUENCY（kHz）

OUTPUT VOLTAGE

100

180

300

500

③Represents decimal number of output voltage and oscillation frequency

OSCILLATION FREQUENCY（kHz）

OUTPUT VOLTAGE

100

180

300

500

④Represents production lot number

0 to 9, A to Z repeated(G,I,J,O,Q,W excepted)

556

XC6365/6366

Series

■BLOCK DIAGRAMS

XC6365, XC6366 Series A,C type (VOUT)

XC6365, XC6366 Series B,D type (FB)

557

XC6365/6366 Series

■ABSOLUTE MAXIMUM RATINGS

Ta = 25℃

PARAMETER

VIN Pin Voltage

SYMBOL

VDD

RATINGS

-0.3 ~ +12

-0.3 ~ VIN +0.3

±100

150

-30 ~ +80

-40 ~ +125

UNITS

VOUT Pin Voltage

FB Pin Voltage

VOUT

VFB

CE Pin Voltage

VCE

EXT/ Pin Voltage

EXT/ Pin Current

Power Dissipation

Operating Temperature Range

Strage Temperature Range

VEXT/

IEXT/

Topr

Tstg

℃

Note :Voltage is all ground standardized.

■ELECTRICAL CHARACTERISTICS

XC6365A333MR, XC6366A333MR

(VOUT=3.3V,FOSC=300kHz)

Ta=25℃

TYP. MAX. UNITS

PARAMETER

Output Voltage

SYMBOL

VOUT

CONDITIONS

MIN.

3.218

10.0

3.300

3.383

Maximum Input Voltage

U.V.L.O. Voltage

(Minimum Operating Voltage)

Supply Current 1

VIN

VUVLO

IDD1

Same as IDD1, Voltage which EXT/pin voltage holding “H” level

No external components, CE=VDD, VOUT=0V

0.9

2.2

300

102

0.5

345

μA

kHz

No external components,

CE=VOUT=VDD

XC6365

XC6366

Supply Current 2

IDD2

Stand-by Current

Oscillation Frequency

Maximum Duty Ratio

PFM Duty Ratio

ISTB

FOSC

MAXDTY

No external components, CE=VOUT=0V

Measuring of EXT/ waveform, VIN=output voltage + 0.1V

255

100

PFMDTY No load (XC6366 only)

No external components, VOUT=0V,

Voltage which EXT/pin voltage holding “L” level

No external components, VOUT=0V,

Voltage which EXT/pin voltage holding “H” level

Same as IDD2, VEXT/=VDD-0.4V

Same as IDD1, VEXT/=0.4V

CE "High" Voltage

CE "Low" Voltage

VCEH

0.65

VCEL

0.20

EXT "High" ON Resistance

EXT "Low" ON Resistance

Efficiency

REXTBH

REXTBL

EFFI

μA

Use of a XP162A12A6 transistor recommended

Soft-Start Time

TSS

Connect RSS, CSS, CE, 0V

→

3.0V(When VIN

≦

3.0V, VIN=3.0V)

msec

Conditions: 1. Unless otherwise stated, connect external components. VIN=VDD = 5.0V, IOUT = 220mA

2. XC6365/66C series external components : CSS=0.033μF, RSS=470kΩ

558

XC6365/6366

Series

■ELECTRICAL CHARACTERISTICS (Continued)

(VOUT=5.0V,FOSC=300kHz)

XC6365A503MR, XC6366A503MR

Ta=25℃

PARAMETER

SYMBOL

CONDITIONS

MIN. TYP. MAX. UNITS

Output Voltage

Maximum Input Voltage

U.V.L.O. Voltage

(Minimum Operating Voltage)

Supply Current 1

VOUT

VIN

4.875 5.000 5.125

10.0

VUVLO

IDD1

Same as IDD1, Voltage which EXT/pin voltage holding “H” level

No external components, CE=VDD, VOUT=0V

0.9

2.2

300

122

0.5

345

μA

kHz

No external components,

CE=VOUT=VDD

XC6365

XC6366

Supply Current 2

IDD2

Stand-by Current

Oscillation Frequency

Maximum Duty Ratio

PFM Duty Ratio

ISTB

FOSC

MAXDTY

No external components, CE=VOUT=0V

Measuring of EXT/ waveform, VIN=output voltage + 0.1V

255

100

PFMDTY No load (XC6366 only)

No external components, VOUT=0V,

Voltage which EXT/pin voltage holding “L” level

No external components, VOUT=0V,

Voltage which EXT/pin voltage holding “H” level

Same as IDD2, VEXT/=VIN-0.4V

Same as IDD1, VEXT/=0.4V

CE "High" Voltage

CE "Low" Voltage

VCEH

0.65

VCEL

0.20

EXT "High" ON Resistance REXTBH

EXT "Low" ON Resistance

Efficiency

μA

REXTBL

EFFI

TSS

Use of a XP162A12A6 transistor recommended

Soft-Start Time

Connect RSS, CSS, CE, 0V

→

3.0V (When VIN

≦

3.0V, VIN=3.0V)

msec

Conditions: 1. Unless otherwise stated, connect external components. VIN=VDD = 7.5V, IOUT = 330mA

2. XC6365/66C series external components : CSS=0.033μF, RSS=470kΩ

559

XC6365/6366 Series

■ELECTRICAL CHARACTERISTICS (Continued)

XC6365A103MR, XC6366A103MR

(VOUT=3.0V, FOSC=300kHz)

MIN.

Ta=25℃

PARAMETER

SYMBOL

CONDITIONS

TYP. MAX. UNITS

Output Voltage

Maximum Input Voltage

U.V.L.O. Voltage

(minimum Operating Voltage)

Supply Current 1

VOUT

VIN

2.975 3.000 3.075

10.0

VUVLO

IDD1

Same as IDD1, Voltage which EXT/pin voltage holding “H” level

No external components, CE=VIN, VOUT=0V

0.9

2.2

300

100

0.5

345

μA

kHz

No external components,

CE=VDD, FB=1.2V

XC6365

XC6366

Supply Current 2

IDD2

Stand-by Current

Oscillation Frequency

Maximum Duty Ratio

PFM Duty Ratio

ISTB

FOSC

MAXDTY

No external components, CE=FB=0V

Measuring of EXT/ waveform, VIN=output voltage + 0.1V

255

100

PFMDTY No load (XC6366 only)

No external components, FB=0V,

Voltage which EXT/pin voltage holding “L” level

No external components, VOUT=0V,

CE "High" Voltage

CE "Low" Voltage

VCEH

0.65

VCEL

0.20

Voltage which EXT/pin voltage holding “H” level

EXT "High" ON Resistance

EXT "Low" ON Resistance

Efficiency

REXTBH Same as IDD2, VEXT/=VIN-0.4V

μA

REXTBL

EFFI

Same as IDD1, VEXT/=0.4V

Use of a XP162A12A6 transistor recommended

Soft-Start Time

TSS

Connect RSS, CSS, CE, 0V

→

3.0V(When VIN

≦

3.0V, VIN=3.0V)

msec

Conditions: 1. Unless otherwise stated, connect external components. VIN=VDD = 4.5V, IOUT = 200mA

2. XC6365/66C series external components : CSS=0.033μF, RSS=470kΩ

3. RFB1 = 400kΩ, RFB2 = 200kΩ, CFB = 100ppF

560

XC6365/6366

Series

■TEST CIRCUITS

Circuit 1. XC6365A, XC6366A

Circuit 2. XC6365B, XC6366B

Circuit 3. XC6365C, XC6366C

561

XC6365/6366 Series

■TEST CIRCUITS (Continued)

Circuit 4. XC6365D, XC6366D

Circuit 5. XC6365A, XC6366A (when used with a PNP transistor)

Circuit 6. XC6365B, XC6366B (when used with a PNP transistor)

562

XC6365/6366

Series

■TEST CIRCUITS (Continued)

Circuit 7. XC6365C, XC6366C (when used with a PNP transistor)

Circuit 8. XC6365D, XC6366D (when used with a PNP transistor)

Recommended Components

C, D type (soft-start externally set-up):

XP162A12A6PR (Torex P-channel Power MOSFET)

Please use a PNP transistor where VIN < 2.5V

22μH (CR54, SUMIDA, FOSC=300kHz,)

CSS

RSS

0.033μF (Ceramic Capacitor)

470kΩ(C type), 330kΩ(D type)

47μH (CR75, SUMIDA, FOSC=180kHz,)

10μH (CR54, SUMIDA, FOSC=500kHz,)

MA2Q735 (Schottky Diode, MATSUSHITA)

10V 47μF (Tantalum Capacitor, NICHICHEMl MCE)

16V 10μF (Tantalum Capacitor, NICHICHEMI MCE)

B, D type (FB type)

RFB

CFB

e. g

Set up so that RFB1 ÷ RFB2 = VOUT – 1

CIN

(VOUT = settig output voltage),

RFB1 = RFB2 ≦ 2MΩ

Set up so that fzfb = 1÷(2π x CFB x RFB1) is within

the 0.5 to 20kHz range (10kHz conventional)

Adjustments necessary in respect of L, CL.

VOUT = 3.0V

PNP Tr type :

2SA1213 (TOSHIBA)

500Ω(Adjust according to load and Tr. hFE levels)

2200pF (Ceramic Type)

RFB1 = 400kΩ, RFB2 = 200kΩ, CFB = 100pF

Set up so that CB ≦ 1 ÷ (2π x RB x FOSC x 0.7)

563

XC6365/6366 Series

■NOTES ON USE

1. Take ample care to ensure that none of the IC's, nor the external component's, absolute maximum ratings are exceeded.

2. Be extremely careful when selecting parts and do not limit your reference to the specifications and characteristics for the

DC/DC converter alone. The IC also depends, to a great extent, upon the external components.

3. Arrange the peripherals in the environs of the IC. In order to reduce wiring impedance, use short, thick wires. In particular,

wire the load capacitor as close as possible and strengthen the ground wiring sufficiently.

4. Ground current during switching may cause the IC's operations to become unstable due to changes in ground voltage, so

please strengthen the IC's GND pin surroundings.

●External Components

1. Setting soft start time

To set a longer soft start time, please use XC6365C or XC6365D series which soft start function is externally set up.

For the measurement of soft start time TSS, the time is needed to be between the max. and the min. value indicated in the

chart below. Please set a soft start capacitor CSS according to the application.

2. Setting RFB1 and CFB

fzfb=1 ÷ (2 π × CFB × RFB1)

As the combination of RFB1 and CFB enable to set fzfb between 0.5kHz to 20kHz, within the realm of fzfb=0.5kHz to

fzfb=20kHz as the chart below can be effective.

Under normal condition, please set the combination to configure around fzfb=10kHz.

564

XC6365/6366

Series

■TYPICAL PERFORMANCE CHARACTERISTICS

565

XC6365/6366 Series