XC6373C200PL datasheet(11/18 Pages) TOREX

11 / 18 page

591

XC6371/6372/6373

Series

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Output Voltage

VOUT

4.875

5.000

5.125

Maximum Input Voltage

VIN

Operation Start Voltage

VST1

External Components Connected, IOUT=1mA

0.90

Oscillation Start Voltage

VST2

No external components,

Apply voltage to VOUT, Lx:10kΩpull-up to 5V

0.80

No Load Input Voltage

IIN

VIN=VOUT×0.8, IOUT=0mA(*1)

12.8

25.7

Supply Current 1

IDD1

Same as VST2,

Apply output voltage×0.95 to VOUT

80.2

133.8

Supply Current 2

IDD2

Same as VST2,

Apply output voltage×1.1 to VOUT

8.2

16.5

Lx Switch-On

Resistance

RSWON

Same as IDD1, VLX=0.4V

1.4

2.4

Lx Leak Current

ILXL

No external components, VOUT =VLX=10V

1.0

Oscillation Frequency

FOSC

Same as IDD1, Measuring of Lx waveform

100

115

kHZ

Maximum Duty Ratio

MAXDTY

Same as IDD1, Measuring of Lx waveform

PFM Duty Ratio (*4)

PFMDTY

Same as IDD1, Measuring of Lx waveform

Lx Limit Voltage

VLxLMT

Same as IDD1, Apply output voltage to Lx,

Voltage required to produce FOSC×2

0.7

1.3

Efficiency

EFFI

Slow-Start Time

TSS

4.0

10.0

20.0

XC6371/72E501PR

VOUT=5.0V, FOSC=100kHz

Ta=25℃

NOTE: Unless otherwise stated, connect VDD to VOUT, VIN=VOUT×0.6, IOUT=50mA. See Typical Application Circuits, Circuit 3.

*1: The Schottky diode (SD) must be type MA2Q735, with reverse current (IR)<1.0μA at reverse voltage (VR)=10.0V.(XC6372E)

*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 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.(XC6372E)

*5: When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from

VDD=0.8V. However, output voltage and oscillation frequency are properly stabilized when VDD=2.2V or higher.

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ELECTRICAL CHARACTERISTICS (Continued)

XC6373C200PL Datasheet(PDF) 11 Page - Torex Semiconductor

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