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XCL104/XCL105 Series

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TYPICAL APPLICATION CIRCUIT/PARTS SELECTION GUIDE

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Load disconnection function : A/D/G/J types＞

It is configured to cut off the continuity from the input side to the output side during standby mode (EN = ”L”).

For the A/D/G/J types, the CL discharge function operates when the charge in the output capacitance is quickly discharged. In

order to prevent the application from malfunction, the charge remaining in the output capacitance.

L1

L2

AGND

EN

PGND

VIN

LX

VOUT

VIN

VOUT

CIN

CL×2

RF

EN=”H” : 3.3V

EN=”L” : 0V

MCU

Battery

VDD

I/O

EN=”H” : Active

EN=”L” : Stand-by

(CL Discharge Active)

XCL104/XCL105

A/D/G/J Type

VDD

＜

Bypass mode: XCL105 B/E/H/K types＞

The Pch synchronous switching FET is turned on to connect the input side and output side during the standby mode (EN = ”L”),.

By operating in this bypass mode, current can be supplied to the output side even during standby mode, and it is possible to drive

the subsequent devices.

In this configuration, a system that can be driven by a low voltage at the standby or sleep mode, it is set to bypass mode and the

input voltage is output to the output side. Where communication or calculation that requires a high drive voltage is performed in

the active mode, the system is driven by activating of the IC and performing boosting operation.

This operation can dramatically reduce the power consumption in the standby mode and improve the battery life.

L1

L2

AGND

EN

PGND

VIN

LX

VOUT

VIN

VOUT

CIN

CL×2

MCU

EN=”H” : 3.3V

EN=”L” : VIN

Battery

VDD

EN=”H” : Active

EN=”L” : Bypass Mode

I/O

XCL105

B/E/H/K Type

RF

Sensor

ISTB@EN=”L”

0μA (TYP.)