XCM520AC01DR-G datasheet(9/43 Pages) TOREX

Part #	XCM520AC01DR-G

Description	600mA Synchronous Step-Down DC/DC Converter Dual LDO Regulator

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Manufacturer	TOREX [Torex Semiconductor]

Direct Link	http://www.torex.co.jp

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XCM520

Series

●PFM Switching Current (IPFM) by Oscillation Frequency and Output Voltage

1.2MHz

(mA)

SETTING VOLTAGE

MIN.

TYP.

MAX.

VOUT3(E) ≦ 1.2Ｖ

140

180

240

1.2V ＜ VOUT3(E) ≦1.75Ｖ

130

170

220

1.8V ≦ VOUT3(E)

120

160

200

3.0MHz

(mA)

SETTING VOLTAGE

MIN.

TYP.

MAX.

VOUT3(E) ≦ 1.2Ｖ

190

260

350

1.2V ＜ VOUT3(E) ≦1.75Ｖ

180

240

300

1.8V ≦ VOUT3(E)

170

220

270

●Measuring PFM Duty Limit, VIN2 Voltage

fOSC

1.2MHz

3.0MHz

(C-1)

VOUT3(E)+0.5V

VOUT3(E)+1.0V

Minimum operating voltage is 2.7V

ex.) Although when VOUT3(E) = 1.2V, fOSC= 1.2MHz, (C-1) = 1.7V the (C-1) becomes 2.7V because of the minimum operating voltage 2.7V.

●Soft-Start Time Chart (XCM520AE/XCM520AF/XCM520AG/XCM520AH Series Only)

PRODUCT SERIES

fOSC

OUTPUT VOLTAGE

MIN.

TYP.

MAX.

UNITS

1200kHz

0.8≦VOUT3(E)<1.5

-

0.25

0.4

1200kHz

1.5≦VOUT3(E)<1.8

-

0.32

0.5

1200kHz

1.8≦VOUT3(E)<2.5

-

0.25

0.4

XCM520AF

1200kHz

2.5≦VOUT3(E)<4.0

-

0.32

0.5

1200kHz

0.8≦VOUT3(E)<2.5

-

0.25

0.4

XCM520AH

1200kHz

2.5≦VOUT3(E)<4.0

-

0.32

0.5

3000kHz

0.8≦VOUT3(E)<1.8

-

0.25

0.4

XCM520AE/AG

3000kHz

1.8≦VOUT3(E)<4.0

-

0.32

0.5

ms

■ELECTRICAL CHARACTERISTICS (Continued)

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XCM520AC01DR-G Datasheet(PDF) 9 Page - Torex Semiconductor

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