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XC9237A2ACEL Folha de dados(PDF) 8 Page - Torex Semiconductor

Nome de Peças XC9237A2ACEL
Descrição Electrónicos  600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters
PDF  28 Pages
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Fabricante Electrônico  TOREX [Torex Semiconductor]
Página de início  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9237A2ACEL Folha de dados(HTML) 8 Page - Torex Semiconductor

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XC9235/XC9236/XC9237 Series
SERIES
FOSC
SETTING VOLTAGE
MIN.
TYP.
MAX.
1200kHz
0.8≦V OUT(E)<1.5
-
250
400μs
1200kHz
1.5≦V OUT(E)<1.8
-
320
500μs
1200kHz
1.8≦V OUT(E)<2.5
-
280
400μs
XC9235B/XC9237B
1200kHz
2.5≦V OUT(E)<4.0
-
320
500μs
1200kHz
0.8≦V OUT(E)<2.5
-
280
400μs
XC9236B
1200kHz
2.5≦V OUT(E)<4.0
-
320
500μs
3000kHz
0.8≦V OUT(E)<1.8
-
280
400μs
XC9235B/
XC9236B/XC9237B
3000kHz
1.8≦V OUT(E)<4.0
-
320
500μs
■ELECTRICAL CHARACTERISTICS (Continued)
●PFM Switching Current (IPFM) by Oscillation Frequency and Setting Voltage
●Input Voltage (VIN) for Measuring Maximum PFM Switching Current (MAXIPFM) Limit
FOSC
1.2MHz
3.0MHz
C-1
VOUT(E)+0.5V
VOUT(E)+1.0V
Minimum operating voltage is 2.0V.
ex.) Although when VOUT(E) is 1.2V and FOSC is 1.2MHz, (C-1) should be 1.7V, (C-1) becomes 2.0V for the minimum operating voltage 2.0V.
■TYPICAL APPLICATION CIRCUIT
●FOSC=3.0MHz
L:
1.5μH
(NR3015, TAIYO YUDEN)
CIN:
4.7μF
(Ceramic)
CL:
10μF
(Ceramic)
●FOSC=1.2MHz
L:
4.7μH
(NR4018, TAIYO YUDEN)
CIN:
4.7μF
(Ceramic)
CL:
10μF
(Ceramic)
(mA)
1.2MHz
3.0MHz
SETTING VOLTAGE
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
VOUT(E) ≦1.2V
140
180
240
190
260
350
1.2V＜VOUT(E) ≦1.75V
130
170
220
180
240
300
1.8V≦VOUT(E)
120
160
200
170
220
270
●Soft-Start Time, Setting Voltage（XC9235B/36B/37B Series only）



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