XC6372C322PL [TOREX]

Switching Regulator/Controller;


型号：	XC6372C322PL
厂家：	Torex Semiconductor
描述：	Switching Regulator/Controller
文件：	总17页 (文件大小：473K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

XC6371/XC6372Series

ETR0402_002

PWM Controlled Step-Up DC/DC Converters

☆GreenOperation-Compatible

■GENERAL DESCRIPTION

The XC6371/XC6372 series is a group of PWM controlled and PWM/PFM controlled step-up DC/DC converters. The built-in

1.4Ω switching transistor type enables a step-up circuit to be configured using only three components, a coil, a diode, and a

capacitor.

Output voltage can be selectable in the range from 2.0V to 7.0V in increments of 0.01V (accuracy:±2.5%). Oscillation

frequency is also selectable from 50kHz, 100kHz, and 180kHz (accuracy:±15%) for the XC6371 and the XC6372 series.

Soft-start time is internally set and offers protection against in-rush currents when the power is switched on and prevents

voltage overshoot. Packages with CE (chip enable) pin are also available which can reduce the IC power consumption

during during stand-by mode.

The XC6371 series is the standard PWM controlled products. The control of the XC6372 series switches from PWM to PFM

control during light loads when automatically switching is selected and the series is highly efficient from light loads to large

output currents.

■APPLICATIONS

●Cellular phones, Pagers

■FEATURES

Operation Start Voltage Range : 0.9V~10V

Output Voltage Range : 2.0V~7.0V (0.1V increments)

Highly Accurate

: ±2.5%

50kHz, 100kHz, 180kHz (±15%)

●Palmtops

Oscillation Frequency

Maximum Output Currents : 100mA(TYP.) @ VIN=3.0V, VOUT=5.0V *

Highly Efficient : 85%(TYP.) @ VIN=3.0V, VOUT=5.0V *

●Cameras, Video recorders

●Portable products

Built-in switching transistor.

CE pin type (XC6371C, XC6372C)

Phase compensation and soft start-up circuits built-in

CMOS Low Power Consumption

Packages

: SOT-89, SOT-89-5, USP-6B

* Performance depends on external components and PCB layout.

■TYPICAL PERFORMANCE

■

TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

1/17

XC6371/XC6372 Series

■PIN CONFIGURATION

*The dissipation pad for the USP-6B

package should be solder-plated in

recommended mount pattern and metal

masking so as to enhance mounting

strength and heat release. If the pad needs

to be connected to other pins, it should be

connected to the pin No.1.

■PIN ASSIGNMENT

XC6371/XC6372A

PIN NUMBER

PIN NAME

FUNCTION

SOT-89

USP-6B

VSS

VOUT

Ground

Output Voltage Monitor/IC Internal Power Supply

Switch

－

2, 3, 5

No Connection

XC6371/XC6372C

PIN NUMBER

PIN NAME

FUNCTION

SOT-89-5

USP-6B

VSS

VOUT

Ground

Output Voltage Monitor/IC Internal Power Supply

Switch

Chip Enable

No Connection

2, 5

2/17

XC6371/XC6372

Series

■PRODUCT CLASSIFICATION

●Selection Guide

START

PWM

XC6371

XC6371A

XC6371C

Standard

Chip Enable

Standard

XC6372A

XC6372C

PWM/PFM XC6372

Chip Enable

●Ordering Information

XC6371①②③④⑤⑥ : PWM controlled

XC6372①②③④⑤⑥ : PWM/PFM switching control

XC6371 Series

DESIGNATOR

DESCRIPTION

Type of

SYMBOL

DESCRIPTION

3-pin DC/DC converter with built-in switching transistor

Stand-by capability with built-in switching transistor

①

DC/DC Converter

② ③

④

Output Voltage

Integer

e.g. VOUT=3.5V→②=3, ③=5

50kHz

Oscillation Frequency

100kHz

180kHz

SOT-89 (XC6371/72 A type)

SOT-89-5 (XC6371/72 C type)

USP-6B

Packages

Taping Type ^(*1)

⑤⑥

^(*1)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, Reverse orientation: ⑤L)

3/17

XC6371/XC6372 Series

■BLOCK DIAGRAMS

XC6371/XC6372A, C

(The V^OUTpin serves also as VDD)

VLx limiter

Soft Start

Vref

VDD

Buffer

VOUT

PWM Control

OSC 50/100/180KHz

Phase comp

VSS

－

EXT

Chip Enable

Note: The CE pin is only used with the XC6371C.

XC6371/72/73E

VDD

VLx limiter

Soft Start

Vref

Buffer

OUT

PWM Control

OSC 50/100/180KHz

Phase comp

－

EXT

Note: Built-in transistor type units use the Lx pin.

■ABSOLUTE MAXIMUM RATINGS

Ta=25℃

PARAMETER

VOUT Input Voltage

LX pin Voltage

SYMBOL

VOUT

VLX

RATINGS

UNITS

LX pin Current

ILX

400

CE Input Voltage

VCE

SOT-89,

500

Power Dissipation

SOT-89-5

USP-6B

100

VDD Input Voltage

VDD

Topr

Tstg

Operating Temperature Range

Storage Temperature Range

-30~＋80

-40~＋125

℃

4/17

XC6371/XC6372

Series

■ELECTRICAL CHARACTERISTICS

VOUT=5.0V, FOSC=100kHZ

XC6371/72A501

Ta=25℃

PARAMETER

Output Voltage

SYMBOL

VOUT

VIN

CONDITIONS

MIN.

4.875

TYP.

MAX. UNITS

5.000

5.125

Maximum Input Voltage

Operation Start Voltage

VST1

External Components Connected, IOUT=1mA

No external components. Apply voltage to VOUT

Lx : 10kΩ pull-up to 5V

0.90

Oscillation Start Voltage

No Load Input Current

Supply Current 1

VST2

IIN

0.80

25.7

VIN=VOUT×0.8, IOUT=0mA ^(*1)

Same as VST2,

12.8

80.2

μA

IDD1

133.8

Apply output voltage×0.95 to VOUT

Same as VST2,

Supply Current 2

IDD2

8.2

1.4

16.5

2.4

μA

Apply output voltage×1.1 to VOUT

Lx Switch-On

Resistance

RSWON

Same as IDD1, VLX=0.4V

Lx Leak Current

ILXL

No external components. VOUT=VLX=10V

Same as IDD1. Measuring of Lx waveform

Same as IDD1. Apply output voltage to Lx,

Voltage required to produce FOSC×2

1.0

115

μA

kHz

Oscillation Frequency

Maximum Duty Ratio

PFM Duty Ratio ^(*4)

FOSC

100

MAXDTY

PFMDTY

Lx Limit Voltage

VLXLMT

0.7

1.3

Efficiency

EFFI

TSS

Slow-Start Time

4.0

10.0

20.0

NOTE: Unless otherwise stated, VIN=VOUT×0.6, IOUT=50mA. See Typical Application Circuits, Circuit1

*1: The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0μA at reverse voltage (VR)=10.0V.(XC6372A)

*2: "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically

operates which results in less average power consumption. The current actually provided by an external VIN source is represented by

"No Load Input Current (IIN)".

*3: When PWM operates at PWM Mode.

*4: When PFM operates at PFM Mode.(XC6372A)

5/17

XC6371/XC6372 Series

■ELECTRICAL CHARACTERISTICS (Continued)

XC6371/72C501

VOUT=5.0V, FOSC=100kHz

Ta=25℃

PARAMETER

Output Voltage

SYMBOL

CONDITIONS

MIN.

4.875

TYP.

MAX. UNITS

VOUT

VIN

5.000

5.125

Maximum Input Voltage

Operation Start Voltage

VST1

External Components Connected, IOUT=1mA

No external components. Apply voltage to VOUT,

Lx : 10kΩ pull-up to 5V

0.90

Operation Start Voltage

No Load Input Current

Supply Current 1

VST2

IIN

0.80

25.7

VIN=VOUT×0.8, IOUT=0mA ^(*1)

Same as VST2,

12.8

80.2

μA

IDD1

133.8

Apply output voltage×0.95 to VOUT

Same as VST2,

Supply Current 2

IDD2

8.2

1.4

16.5

2.4

μA

Apply output voltage×1.1 to VOUT

Lx Switch-On

Resistance

RSWON

Same as IDD1, VLx=0.4V

Lx Leak Current

ILXL

FOSC

MAXDTY

PFMDTY

ISTB

No external components, VOUT =VLX=10V

Same as IDD1, Measuring of Lx waveform

Same as IDD1

1.0

115

μA

kHZ

Oscillation Frequency

Maximum Duty Ratio

PFM Duty Ratio ^(*4)

Stand-by Current

CE "High" Voltage

CE "Low" Voltage

CE "High" Current

CE "Low" Current

100

0.5

μA

VCEH

Same as IDD1, Lx Oscillation start

Same as IDD1, Lx Oscillation stop

Same as IDD1, VCE=VOUT×0.95

Same as IDD1, VCE=0V

0.75

VCEL

0.20

0.25

-0.25

ICEH

μA

ICEL

Same as IDD1, Apply output voltage to Lx,

Voltage required to produce FOSC×2

Lx Limit Voltage

VLxLMT

0.7

1.3

Efficiency

EFFI

TSS

Slow-Start Time

4.0

10.0

20.0

NOTE: Unless otherwise stated, connect CE to VOUT, VIN=VOUT×0.6, IOUT=50mA. See Typical Application Circuits, Circuit 2.

*1: The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0μA at reverse voltage (VR)=10.0V.(XC6372C)

*2: "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically

operates which results in less average power consumption. The current actually provided by an external VIN source is represented by

"No Load Input Current (IIN)".

*3: When PWM operates at PWM Mode.

*4: When PFM operates at PFM Mode.(XC6372C)

6/17

XC6371/XC6372

Series

■TYPICAL APPRICATION CIRCUITS

Circuit 1: XC6372A series

Circuit 2: XC6372C series

: 100μH (CR54, SUMIDA)

L : 100μH (CR54, SUMIDA)

SD: MA2Q735 (Schottky Diode; MATUSHITA)

CL : 16V47μF (Tantalum Capacitor, NICHICHEMI MCE)

SD : MA2Q735 (Schottky Diode; MATUSHITA)

CL : 16V 47μF (Tantalum Capacitor, NICHICHEMI MCE)

7/17

XC6371/XC6372 Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1) Output Voltage vs. Output Current

XC6371A501PR

XC6371A301PR

L＝100μH(CR54),CL＝47μF(Tantalum)

L＝100μH（CR54），CL＝47μF（Tantalum）

5.2

5.1

5.0

4.9

4.8

3.10

3.05

3.00

2.95

2.90

1.2V

1.5V

2.0V

3.0V

1.5V

1.8V

1.2V

IN=1.0V

IN=0.9V

4.0V

2.7V

0.1

100

1000

0.1

1 0

100

1000

Output Current:IOUT（mA）

XC6372A301PR

XC6372A501PR

L＝100μH（CＲ54），C

＝47μF（Tantalum）

L＝100μH（CＲ54），C

＝47μF（Tantalum）

3.10

3.05

3.00

2.95

2.90

5.2

5.1

5.0

4.9

4.8

1.5V

1.8V

1.5V

1.2V

2.0V

3.0V

IN=0.9V

2.7V

4.0V

0.1

100

1000

0.1

100

Output Current:IOUT (mA)

8/17

XC6371/XC6372

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(2) Efficiency vs. Output Current

XC6371A501PR

XC6371A301PR

L＝100μH(CR54),CL＝47μF(Tantalum)

100

4.0V

2.7V

3.0V

IN=0.9V

2.0V

1.5V

1.8 V

1.5V

1.2V

1000

0.1

100

1000

0.1

100

Output Current:IOUT（mA）

9/17

XC6371/XC6372 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(3) Ripple Voltage vs. Output Current

XC6371A301PR

L＝100μH(CR54),CL＝47μF(Tantalum)

100

1.8V

1.5V

1.2V

2.7V

IN=0.9V

0.1

100

11000000

Output Current:IOUT (mA)

10/17

XC6371/XC6372

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(4) No Load Input Current vs. Input Voltage

XC6371A301PR

L＝100μH（CＲ54），CL＝47μF（Tantalum）

500

400

300

200

100

Input Voltage:VIN (V)

XC6372A501PR

L＝100μH（CＲ54），CL＝47μF（Tantalum）

200

150

100

Input Voltage:VIN (V)

11/17

XC6371/XC6372 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(5) Operation Start Voltage / Hold Voltage vs. Output Current

(6) Load Transient Response

12/17

XC6371/XC6372

Series

■PACKAGING INFORMATION

●SOT-89

●SOT-89-5

●USP-6B

13/17

XC6371/XC6372 Series

■PACKAGING INFORMATION (Continued)

●USP-6B Recommended Pattern Layout

●USP-6B Recommended Metal Mask Design

14/17

XC6371/XC6372

Series

■MARKING RULE

[XC6371/XC6372]

●SOT-89, SOT-89-5

① Represents product series

MARK

PRODUCT SERIES

MARK

PRODUCT SERIES

XC6372A

XC6371A

XC6371C

XC6372C

② Represents integer of output voltage and oscillation frequency

OSCILLATION FREQUENCY

OUTPUT VOLTAGE (V)

50kHz

100kHz

180kHz

1.x

2.x

3.x

4.x

5.x

6.x

7.x

SOT-89

(TOP VIEW)

③ Represents decimal number of output voltage and oscillation frequency

OSCILLATION FREQUENCY

OUTPUT VOLTAGE (V)

50kHz

100kHz

180kHz

x.0

x.1

x.2

x.3

x.4

x.5

x.6

x.7

x.8

x.9

SOT-89-5

(TOP VIEW)

④ Represents production lot number

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

15/17

XC6371/XC6372 Series

■MARKING RULE (Continued)

[XC6371/XC6372] (Continued)

●USP-6B

① Represents product series

MARK

PRODUCT SERIES

XC6371xxxxDx

XC6372xxxxDx

② Represents product classification

MARK

PRODUCT SERIES

XC6371A

USP-6B

XC6371C

(TOP VIEW)

③④ Represents output voltage (ex.)

MARK

OUTPUT VOLTAGE (V)

③

④

3.3

5.0

⑤ Represents oscillation frequency

MARK

OSCILLATION FREQUENCY (kHz)

100

180

⑥ Represents production lot number

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

Note: No character inversion used.

16/17

XC6371/XC6372

Series

1. The products and product specifications contained herein are subject to change without

notice to improve performance characteristics. Consult us, or our representatives

before use, to confirm that the information in this datasheet is up to date.

2. We assume no responsibility for any infringement of patents, patent rights, or other

rights arising from the use of any information and circuitry in this datasheet.

3. Please ensure suitable shipping controls (including fail-safe designs and aging

protection) are in force for equipment employing products listed in this datasheet.

4. The products in this datasheet are not developed, designed, or approved for use with

such equipment whose failure of malfunction can be reasonably expected to directly

endanger the life of, or cause significant injury to, the user.

(e.g. Atomic energy; aerospace; transport; combustion and associated safety

equipment thereof.)

5. Please use the products listed in this datasheet within the specified ranges.

Should you wish to use the products under conditions exceeding the specifications,

please consult us or our representatives.

6. We assume no responsibility for damage or loss due to abnormal use.

prior permission of TOREX SEMICONDUCTOR LTD.

17/17

XC6372C322PL [TOREX]

相关型号：

XC6372C330DR

XC6372C330DR-G

XC6372C330PR-G

XC6372C332DR

XC6372C332DR-G

XC6372C332PR

XC6372C332PR-G

XC6372C340DR

XC6372C341DR-G

XC6372C342DR

XC6372C342DR-G

XC6372C350DL