XC6372 datasheet(9/18 Pages) TOREX

Part #	XC6372

Description	PWM Controlled Step-Up DC/DC Controllers/Converters

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Manufacturer	TOREX [Torex Semiconductor]

Direct Link	http://www.torex.co.jp

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9 / 18 page

589

XC6371/6372/6373

Series

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Output Voltage

VOUT

4.875

5.000

5.125

V

Maximum Input Voltage

VIN

10

-

V

Operation Start Voltage

VST1

External Components Connected, IOUT=1mA

-

0.90

V

Oscillation Start Voltage

VST2

No external components. Apply voltage to VOUT

Lx : 10kΩ pull-up to 5V

-

0.80

V

No Load Input Current

IIN

VIN=VOUT×0.8, IOUT=0mA (*1)

-

12.8

25.7

μ

A

Supply Current 1

IDD1

Same as VST2,

Apply output voltage×0.95 to VOUT

-

80.2

133.8

μ

A

Supply Current 2

IDD2

Same as VST2,

Apply output voltage×1.1 to VOUT

-

8.2

16.5

μ

A

Lx Switch-On

Resistance

RSWON

Same as IDD1, VLX=0.4V

-

1.4

2.4

Ω

Lx Leak Current

ILXL

No external components. VOUT=VLX=10V

-

1.0

μ

A

Oscillation Frequency

FOSC

Same as IDD1. Measuring of Lx waveform

85

100

115

kHz

Maximum Duty Ratio

MAXDTY

Same as IDD1. Measuring of Lx waveform

80

87

92

%

PFM Duty Ratio (*4)

PFMDTY

Same as IDD1. Measuring of Lx waveform

10

17

25

%

Lx Limit Voltage

VLXLMT

Same as IDD1. Apply output voltage to Lx,

Voltage required to produce FOSC×2

0.7

-

1.3

V

Efficiency

EFFI

-

85

-

%

Slow-Start Time

TSS

4.0

10.0

20.0

mS

■

ELECTRICAL CHARACTERISTICS

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)

XC6371/72A501PR

VOUT=5.0V, FOSC=100kHZ

Ta=25℃

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