XC9515 datasheet(5/21 Pages) TOREX

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XC9515

Series

Test Conditions：

* P_VDD1

・2 stands for P_VDD1=P_VDD2

**Unless otherwise stated, P_VDD1

・2=5V, VEN1=VEN2= P_VDD1・2

*** A_VSS=P_VSS1=P_VSS2=0V

NOTE :

*1：When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.

If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.

*2：EFFI = { ( output voltage x output current ) / ( input voltage x input current) } x 100

*3：On resistance (Ω)= (VIN - Lx pin measurement voltage) / 100mA

*4：Designed value.

*5：Time until it short-circuits LX1 (LX2 in the side of 2CH) with GND via 1Ωof resistor from an operational state and is set to Lx=0V from

current limit pulse generating.

*6：”H” is judged as “H”>VIN-0.1V, ”L” is judged as ”L”<0.1V.

*7：When temperature is high, a current of approximately 20μA (maximum) may leak.

*8：Current which EN1 and EN2 are measured separately.

*9：Lead current which LX1 and LX2 are measured separately.

XC9515AB04xx

● DC/DC CH1, CH2 (VOUT1=1.5V, VOUT2=3.3V, fOSC =1MHz, EN1・2 Pull-up inside)

Ta =25

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX. UNITS CIRCUIT

Input Voltage

VIN

4.5

5.0

5.5

－

Output Voltage 1

VOUT1

Connected to the external components,

P_VDD1・2=VEN1=VEN2=0V, IOUT1=30mA

1.470 1.500 1.530

①

Output Voltage 2

VOUT2

Connected to the external components,

P_VDD1・2=VEN2=VEN1=0V, IOUT2=30mA

3.234 3.300 3.366

①

Maximum Output Current 1・2

(*1)

IOUTMAX1

IOUTMAX2

800

－

①

Current Limit 1・2

I LIM1 ・

I LIM 2

1000

－

②

Oscillation Frequency

fOSC

Connected to the external components, IOUT=10mA

0.85

1.00

1.15

MHz

①

Maximum Duty Cycle

MAXDTY VOUT1=VOUT2=0V

100

－

②

Minimum Duty Cycle

MINDTY VOUT1=VOUT2=VIN

－

②

Efficiency 1

(*2)

EFFI1

Connected to the external components,

P_VDD1・2=VEN1=5.0V, VEN2=0V,

VOUT1=1.5V, IOUT1=200mA

－

①

Efficiency 2

(*2)

EFFI2

Connected to the external components,

P_VDD1・2=VEN2=5.0V, VEN1=0V,

VOUT2=3.3V, IOUT2=200mA

－

①

LX1・2 "H" ON Resistance

RLX1H・RLX2H VOUT1=VOUT2=0V, ILx1=ILx2=100mA

(*3)

－

0.35

(*4)

－

③

LX1・2 "L" ON Resistance

RLX1L・RLX2L

－

0.35

(*4)

－

Integral Latch Time 1・2

tLAT1・ tLAT2

LX1 and LX2 are pulled down by a resistor of 200Ω

VOUT1=Setting Voltage×0.9,

VOUT2= Setting Voltage ×0.9

(*5)

－

⑦

Soft-Start Time 1・2

tSS1・ tSS2

Time until EN1, EN2 or both pins changes from 0V to

VIN and voltage becomes VOUT1・2×0.95, IOUT1・2=10mA

－

1.3

－

①

EN1・2 "H" Level Voltage

VEN1H・

VEN2H

VOUT1=VOUT2=0V

Voltage which LX1 or LX2 becomes ”H”

(*6)

1.2

－

④

EN1・2 "L" Level Voltage

VEN1L・

VEN2L

VOUT1=VOUT2=0V

Voltage which LX1 or LX2 becomes ”L”

(*6)

AVSS

－

0.4

④

EN1・2 "H" Level Current

IEN1H・IEN2H P_VDD1・2=VEN1=VEN2=5.5V

－

0.1

(*8)

④

EN1・2 "L" Level Current

IEN1L・IEN2L P_VDD1・2=5.5V, VEN1=VEN2=0V

－

-6

(*8)

－

④

LX1・2 "H" Leakage Current

(*7)

ILEAK1H・

ILEAK2H

P_VDD1・2=VLX1=VLX2=5.5V, VEN1=VEN2=0V

－

1.0

(*9)

④

LX1・2 "L" Leakage Current

ILEAK1L・

ILEAK2L

P_VDD1・2=5.5V, VLX1=VLX2=VEN1=VEN2=0V

-3.0

(*9)

－

④

■ELECTRICAL CHARACTERISTICS

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