Preliminary

" ELECTRICAL CHARACTERISTICS

XC9213B103

(FOSC = 300kHz)

Test conditions :

Unless otherwise stated, VOUT = 3.0V, VIN = 5.0V, CE = 5.0V, MODE = 5.0V

Test circuits :

Tr 1 :

2SK2857 (NEC)

CFB :

68pF

Tr 2 :

2SK2857 (NEC)

RSENSE : 0

Ω

CL :

22

µF (OS-CON)

CPRO :

0F

CIN :

22

µF (OS-CON)

CSS :

100pF

SD 1 :

CRS02 (Schottky barrier diode)

CVL :

1

µF

RFB 1 :

200k

Ω

CBST :

0.1

µF

RFB 2 :

110k

Ω

V

Output Voltage Setting Range

Input Voltage : 25V

Input Voltage

XC9213 Series

Driver Transistor Built-In

Synchronous Step-Down DC/DC Controller Ics

PARAMETER

UNIT

V

FB Control Voltage

V

V

Supply Current 1

µA

UVLO Voltage

µA

Stand-by Current

µA

Supply Current 2

ISTB

No external components, CE=VIN, FB=1.1V

No external components, CE=FB=0V

550

kHz

Max. Duty Ratio 1

%

Oscillation Frequency

FOSC

MAXDTY1

Same as IDD1

Same as IDD1

-

95

%

PFM Duty Ratio

µS

Max. Duty Ratio 2

MAXDTY2

PFMDTY

Same as IDD2

MODE=0V, IOUT=1mA, No RSENSE

-

2

mV

CPRO time

µS

SENSE Voltage

VSENSE

TPRO

CPRO=100pF

-

100

µS

Efficiency

%

Soft-Start Time

TSS

EFFI

CSS=100pF, VOUT x 0.95, CE=0V

! 3V

IOUT=1A

-

93

V

CE "L" Voltage

V

CE "H" Voltage

VCEH

VCEL

No external components,

FB=0V, Voltage which EXT pin starts oscillation

No external components,

FB=0V, Voltage which EXT pin voltage holding "L" level

-

V

MODE "L" Voltage

V

MODE "H" Voltage

VPWMH

VPWML

No load

No load

-

-

Ω

EXT1 "L" ON Resistance

Ω

EXT1 "H" Resistance

REXT1H

REXT1L

FB=0.9V, EXT1=3.6V

FB=1.1V, EXT2=0.4V

-

10

Ω

EXT2 "L" ON Resistance

Ω

EXT2 "H" ON Resistance

REXT2H

REXT2L

FB=1.1V, EXT1=3.6V

FB=0.9V, EXT2=0.4V

-

3

µA

CE "L" Current

µA

CE "H" Current

ICEH

ICEL

CE=5.0V

CE=0V

-

-

µA

MODE "L" Current

µA

MODE "H" Current

IMODEH

MODE=5.0V

MODE=0V

IMODEL

-

-

µA

CSS "L" Current

µA

CSS "H" Current

CSS=3.8V

CSS=0V

ICSSH

ICSSL

-

-2.0

µA

FB "L" Current

µA

FB "H" Current

IFBL

IFBH

FB=5.0V

FB=1.1V

-

-

V

Load Stability

mV

Output Voltage

-

4.0

-

IVDOUTH

VDOUT=0.5V

IVDINL

VDIN=5.0V

VDIN=0V

VDOUT=5.0V

Detect Voltage

V

VDIOUT

IVDINH

VDIN "H" Current

µA

Delay Time

%

VD Input Current

mV

Hysteresis Range

µA

PARAMETER

UNIT

VDOUT " L" Current

IVDOUTL

µA

VDOUT " H" Current

µA

VDIN "L" Current

mS

UNIT

Input Stability

" VOUT

" VIN x VOUT

SYMBOL

PARAMETER

VOUTVL + 1.0V

≤VIN≤25.0V

CONDITIONS

VDR

! VOUT inversion

Voltage which EXT1 pin starts oscillation

No external components, CE=VIN, FB=0.9V

MAX.

TYP.

MIN.

-

1.5

-

-

SYMBOL

VIN

VOUTSET

CONDITIONS

VFB

UVLO

IDD1

IDD2

SYMBOL

VLOUT

" VOUT

tDLY

VDF

VHYS

CONDITIONS

IOUT=10mA

1mA

≤IOUT≤30mA

IOUT=10mA

VDOUT=0V

2.5

-

25.0

1.5

-

15.0

-

1.0

-

-

-

450

-

-

-

3.0

255

300

345

-

-98-

-

-

150

-

-

-

300

-

-

1.4

-

-

0.5

1.4

-

-

0.5

-18-

-

-18-

-

-

-

0.1

-0.1

-

-

0.1

-0.1

-

-0.7

-

-

-

-

0.1

-0.1

MIN.

TYP.

MAX.

%/V

-

100

-

MIN.

TYP.

MAX.

-

0.9

-

-6-

-15-

-

-0.1

-

-

0.1

-

-

0.1

-

-

-0.1

0.2

--

-

-

-0.1

-

4