XC9104D092ML datasheet(4/23 Pages) TOREX

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XC9103/XC9104/XC9105 Series

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

CIRCUIT

Output Voltage

VOUT

3.234

3.300

3.366

①

Output Voltage Range

VOUTSET

VIN=VOUTSETx0.6, VDD=3.3V

IOUT=10mA, Using 2SD1628

1.5

30.0

②

FB Control Voltage

VFB

0.882

0.900

0.918

④

Supply Voltage Range

(*1)

VDD

1.8

10.0

Operation Start Voltage

VST1

Recommended circuit using 2SD1628,

IOUT=1.0mA

0.9

③

Oscillation Start Voltage

(*1)

VST2

No external components, CE connected

to VDD, Voltage applied, FB=0V

0.8

④

Operation Hold Voltage

VHLD

Recommended circuit using 2SD1628,

IOUT=1.0mA

0.7

③

Supply Current 1

IDD1

Same as VST2, VDD=3.3V

μA

④

Supply Current 2

IDD2

Same as IDD1, FB=1.2V

μA

④

Stand-by Current

ISTB

Same as IDD1, CE=0V

1.0

μA

⑤

Oscillation Frequency

FOSC

Same as IDD1

153

180

207

kHz

④

Maximum Duty Cycle

MAXDTY

Same as IDD1

④

PFM Duty Rate

PFMDTY

No load

(XC9104B/D, 9105B/D)

①

Overcurrent

Sense Voltage (*3)

VLMT

Step input to FB (Pulse width: 2.0μS

or more), EXT=Low level voltage

(XC9103B, 9104B, 9105B)

170

250

330

⑥

Efficiency

EFFI

Recommended circuit using XP161A1355

①

Soft-Start Time

TSS

5.0

10.0

20.0

①

CE “High” Voltage (*2)

VCEH

Same as IDD1

0.65

⑤

CE “Low” Voltage (*2)

VCEL

Same as IDD1

0.20

⑤

PWM “High” Voltage (*2)

VPWMH

IOUT=1.0mA

(XC9105B/D)

VDD-0.2

①

PWM “Low” Voltage (*2)

VPWML

IOUT=1.0mA

(XC9105B/D)

VDD-1.0

①

EXT “High”

On Resistance

REXTH

Same as IDD1, VEXT=VOUT-0.4V

④

EXT “Low”

On Resistance

REXTL

Same as IDD1, VEXT=0.4V

④

CE “High Current

ICEH

Same as IDD2, CE=VDD

0.1

μA

⑤

CE “Low” Current

ICEL

Same as IDD2, CE=0V

- 0.1

μA

⑤

FB “High” Current

IFBH

Same as IDD2, CE=VDD

0.1

μA

⑤

FB “Low” Current

IFBL

Same as IDD2, CE=0V

- 0.1

μA

⑤

■ELECTRICAL CHARACTERISTICS

(FOSC=180kHz)

Ta=25℃

XC9103B092MR, XC9104B092MR, XC9105B092MR

XC9103D092MR, XC9104D092MR, XC9105D092MR

Test Conditions: Unless otherwise stated, CL: ceramic, recommended MOSFET should be connected.

VOUT=3.3V, VIN=2.0V, IOUT=170mA

NOTE:

*1 Although the IC starts step-up operations from a VDD of 0.8V, the output voltage and oscillation frequency are stabilized at VDD>1.8V.

Therefore, a VDD of more than 1.8V is recommended when VDD is supplied from VIN or other power sources.

*2 With the XC9105 series, the CE pin also serves as a PWM/PFM switching pin. In operation, PWM control is selected when the voltage

at the CE pin is more than VDD -0.2V. On the other hand, PWM/PFM automatic switching control at a duty = 25% is selected when

the voltage at the CE pin is less than VDD -1.0V and more than VCEH.

*3 The overcurrent limit circuit of this IC is designed to monitor the ripple voltage so please select your external components carefully to

prevent VLMT being reached under low temperature conditions as well as normal operating conditions. Following current limiter

circuit operations, which in turn causes the IC's operations to stop, the operations of the IC can be returned to normal with a toggle of

the CE pin or by turning the power supply back on.

XC9104D092ML Datasheet(PDF) 4 Page - Torex Semiconductor

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