XC9110F171ML datasheet, PDF - EEWORLD Datasheet

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XC9110F171ML: DescriptionPFM Controlled Step-Up DC/DC Converter / Controller ICs; File Size2MB，35 Pages; ManufacturerTOREX; Websitehttp://www.torex.co.jp/chinese/

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XC9110F171ML Overview

PFM Controlled Step-Up DC/DC Converter / Controller ICs

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XC9110/XC9111

Series

PFM Controlled Step-Up DC/DC Converter / Controller ICs

ETR0406 004

The XC9110/9111 series is a group of PFM controlled step-up DC/DC converter/controller ICs designed to generate low supply

voltage by the combination of PFM control and CMOS structure. The series is ideal for applications where a longer battery life is

needed such as in portable communication equipment. With a built-in 2.5ΩN-channel driver transistor, the XC9110A/C/E and

XC9111A/C/E types provide a step-up operation by using only a coil, a capacitor, and a diode connected externally.

The XC9110/9111B, D and F versions can be used with an external transistor for applications requiring larger currents.

Output voltage is internally programmable in a range from 1.5V to 7.0V in increments of 100mV (accuracy:±2.5%).

Maximum oscillation frequency is set to 100kHz for XC9110/9111 series. (At light loads, it is set to 180kHz for the XC9111

series.) Options include products equipped with a CE pin (C and D versions) that allows the IC to be shut down thereby

reducing supply current and with separated V

OUT

pins (E and F versions) to separate the power supply block and the

output voltage detect block. With the XC9110 series, maximum duty cycle is set to 75% (V

=3.3V) making it suitable for

use with large current operations. The XC9111 series automatically switches duty ratio between 56% & 75% (V

=3.3V)

when it senses changes in load to drop output ripple voltage and can support both large and small currents. The external

transistor types (B/D/F types) can be provided for applications, which require larger currents.

■GENERAL

DESCRIPTION

■APPLICATIONS

●Mobile

phones

●Various

palm top equipment

●Cameras,

VCRs

●Various

portable equipment

■FEATURES

Operating (Input) Voltage Range

: 0.9V ~ 10.0V

Output Voltage Range

: 1.5V~7.0V

(100mV increments,

accuracy

±2.5%)

Maximum Oscillation Frequency

: 100kHz (accuracy

±15%)

180kHz (for the XC9111 series,

duty ratio: 56% at light loads)

Built-in Switching N-ch Transistor

: A/C/E type

ON Resistance 2.5Ω

=3.0V)

External Transistor Types

: B/D/F type

Lx Limit Voltage

: E type: more than V

=2.0V

: A/C type: more than V

OUT

=2.0V

Low Supply Current

: 2.0μA

(When operating, VOUT=3V)

Small Package

: SOT-23 & SOT89

(for XC9111 series),

SOT-25, USP-6C

■TYPICAL

APPLICATION CIRCUIT

●C

type circuit

■

TYPICAL PERFORMANCE

CHARACTERISTICS

100

XC9111E331MR

L=100μH(CR54), CL47μF(Tantalum)

SD: XB01SB04A2BR

Efficiency:EFFI(%)

(TOP VIEW)

SOT-25

VIN +

CIN

VOUT

(Tantalum)

3.0V

1.5V

1.2V

VIN=0.9V

2.4V

GND

1 00

150

2 00

Output Current:IOUT(mA)

250

3 00

1/35

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