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XCM524BC06DR-G Datasheet(PDF) 11 Page - Torex Semiconductor

Part # XCM524BC06DR-G
Description  600mA Synchronous Step-Down DC/DC Converter 500mA LDO with Delay Function Voltage Detector
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XCM524BC06DR-G Datasheet(HTML) 11 Page - Torex Semiconductor

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XCM524
Series
■ELECTRICAL CHARACTERISTICS (Continued)
●PFM Switching Current (IPFM) by Oscillation Frequency and Output Voltage
1.2MHz
(mA)
SETTING VOLTAGE
MIN.
TYP.
MAX.
VDCOUT(T)≦1.2Ｖ
140
180
240
1.2V＜VDCOUT(T)≦1.75Ｖ
130
170
220
1.8V≦VDCOUT(T)
120
160
200
3.0MHz
(mA)
SETTING VOLTAGE
MIN.
TYP.
MAX.
VDCOUT(T)≦1.2Ｖ
190
260
350
1.2V＜VDCOUT(T)≦1.75Ｖ
180
240
300
1.8V≦VDCOUT(T)
170
220
270
●Measuring Maximum IPFM Limit, VIN2 Voltage
fOSC
1.2MHz
3.0MHz
(C-1)
VDCOUT(T)+0.5V
VDCOUT(T)+1.0V
Minimum operating voltage is 2.7V
Although when VDCOUT(T)=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 (XCM524xC/ XCM524xD Series Only)
PRODUCT SERIES
fOSC
OUTPUT VOLTAGE
MIN.
TYP.
MAX.
1.2MHz
0.8V≦VDCOUT(T)<1.5V
-
250μs
400μs
1.2MHz
1.5V≦VDCOUT(T)<1.8V
-
320μs
500μs
1.2MHz
1.8V≦VDCOUT(T)<2.5V
-
250μs
400μs
XCM524AC
1.2MHz
2.5V≦VDCOUT(T)≦4.0V
-
320μs
500μs
1.2MHz
0.8V≦VDCOUT(T)<2.5V
-
250μs
400μs
XCM524BC
1.2MHz
2.5V≦VDCOUT(T)≦4.0V
-
320μs
500μs
3.0MHz
0.8V≦VDCOUT(T)<1.8V
-
250μs
400μs
XCM524xD
3.0MHz
1.8V≦VDCOUT(T)≦4.0V
-
320μs
500μs
■TYPICAL APPLICATION CIRCUIT
● DC/DC BLOCK fOSC=3.0MHz
CIN1
:
1μF
(Ceramic)
CL1
:
1μF
(Ceramic)
L
:
1.5μH (NR3015 TAIIYO YUDEN)
CIN2
:
4.7μF (Ceramic)
CL2
:
10μF (Ceramic)
● DC/DC BLOCK fOSC =1.2MHz
CIN1
:
1μF
(Ceramic)
CL1
:
1μF
(Ceramic)
L
:
4.7μH (NR4018 TAIIYO YUDEN)
CIN2
:
4.7μF
(Ceramic)
CL2
:
10μF
(Ceramic)
L
VIN
CIN2
7
8
9
10
3
4
5
6
NC
Lx
VIN1
EN2
AGND
DCOUT
11
12
2
1
VSS
Cd
PGND
VIN2
CIN1
CL2
CL1
VDCOUT
EN2
VDOUT
VROUT
Rpull-up
Cd
VROUT
VDOUT


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