XC9129B45CSR datasheet(6/13 Pages) TOREX

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XC9128/XC9129 Series

Topr=25

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX. UNITS

CIRCUIT

VIN =VOUT=3.3V, VFO=0V

(*8)

EN "H" Voltage

VENH

Voltage to start oscillation during

VFB=0.45×0.9, VEN= 0.2V→0.65V

0.65

6.0

④

VIN = VOUT =3.3V, VFO=0V

(*8)

EN "L" Voltage

VENL

Voltage to stop oscillation during

VFB=0.45×0.9,

VEN= 0.65V→0.2V

0.2

④

MODE "H" Voltage

VMODEH

RL =330Ω, Voltage operates at PWM control

0.65

6.0

①

MODE "L" Voltage

VMODEL

RL =330Ω, Voltage operates at PFM control

AGND

0.2

①

AEN/ Voltage

(*7)

VAEN/

VIN = VOUT =3.3V, VFO=0V

Voltage to start oscillation during VAEN/= 0.9V→0.7V

0.7

0.8

0.9

④

EN "H" Current

IENH

VIN=VOUT=VFB=VEN=6.0V

0.1

②

EN "L" Current

IENL

VIN=VOUT=VFB=6.0V, VEN=0V

-0.1

②

MODE "H" Current

IMODEH

VIN=VOUT=VFB=VMODE=6.0V

0.1

②

MODE "L" Current

IMODEL

VIN=VOUT=VFB=6.0V, VMODE=0V

-0.1

②

AEN/ "H" Current

(*7)

IAEN/H

VIN=VOUT=VFB=VAEN/=6.0V

0.1

②

AEN/ "L" Current

(*7)

IAEN/L

VIN=VOUT=6.0V, VEN=0V, VAEN/=0V

-0.1

②

FB "H" Current

IFBH

VIN=VOUT=VFB=6.0V

0.1

②

FB "L" Current

IFBL

VIN=VOUT=6.0V, VFB=0V

-0.1

②

Test Conditions:

For the Circuit No.1, unless otherwise stated, VIN=1.8V, VEN=VMODE=VFO=3.3V, VAEN/=0V （

*8）

For the Circuit No.2, unless otherwise stated, VIN=1.8V, VFB =0V, VEN=VMODE=3.3V, VAEN/=0V （

*8）

For the Circuit No.3, unless otherwise stated, VIN=1.8V, VOUT=VEN=VMODE=3.3V, FB=0V

For the Circuit No.4, unless otherwise stated, VIN=1.8V, VFB=0V, VEN=VMODE=Vpull=VFO=3.3V, VAEN/ =0V （

*8）

For the Circuit No.5, unless otherwise stated, VIN=3.3V, VAEN/=0V （

*8）

For the Circuit No.6, unless otherwise stated, VEN=VMODE=Vpull=VFO=3.3V, VFB=0V （

*8）

For the Circuit No.7, unless otherwise stated, VEN=VMODE=3.3V

External Components:

For the Circuit No.1, RFB1=270kΩ, RFB2=43kΩ, CFB=12pF, L=4.7μH（LTF5022 TDK）, CL1=22μF（ceramic）, CL2=10

F（ceramic）, CIN=10μF（ceramic）

For the Circuit No.2,3, CIN=1μF（ceramic）

For the Circuit No.4,6, CIN=1μF（ceramic）, Rpull=300Ω

For the Circuit No.5, CIN=1μF（ceramic）, COUT=1μF（ceramic）

For the Circuit No.7, CIN=1μF（ceramic）, COUT=1μF（ceramic）, SBD =XBS304S17（TOREX）, Rpull=0.5Ω

*1 : Designed value

*2 : Efficiency ={(output voltage) X (output current)} ÷ {(input voltage) X (input current)} X 100

*3 : LX SW "P-ch" ON resistance=（VLx-VOUT pin test voltage）÷100mA

*4 : Testing method of LX SW "N-ch" ON resistance is stated at test circuits.

*5 : Current flowing through the Nch driver transistor is limited.

*6 : The XC9128D/XC9129D series does not have integral latch protection and VLVP function.

This is only available with the XC9128B/XC9129B series.

*7 : The XC9129 series does not have FO and AEN/ pins. These pins are only available in the XC9128 series.

*8 : The XC9129 series does not have FO and AEN/ pins. The AEN/FO functions are only effective for the test of the XC9128 series.

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ELECTRICAL CHARACTERISTICS (Continued)

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XC9128/XC9129 Series (Continued)

XC9129B45CSR Datasheet(PDF) 6 Page - Torex Semiconductor

XC9129B45CSR Datasheet(HTML) 6 Page - Torex Semiconductor

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