XC9236A33DMR Torex Semiconductor Ltd, XC9236A33DMR Datasheet - Page 12

• Manufacturer Part Number: XC9236A33DMR
• Description: IC, DCDC SYNCH BUCK 3MHZ 3.3V SOT25
• Manufacturer: Torex Semiconductor Ltd

Specifications of XC9236A33DMR

• Primary Input Voltage: 6V
• No. Of Outputs: 1
• Output Voltage: 3.3V
• Output Current: 600mA
• Voltage Regulator Case Style: SOT-25
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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■TYPICAL APPLICATION CIRCUIT
●XC9235/9236/9237A, B, C, E, G Series (Output Voltage Fixed)
●XC9235/9236/9237D, F Series (Output Voltage External Setting)
<Setting for Output Voltage>
Output voltage can be set externally by adding two resistors to the FB pin. The output voltage is calculated by the R
R
The value of the phase compensation speed-up capacitor C
【Formula】
【Example】
XC9235/XC9236/XC9237
FB2
When R
V
1.2
1.5
1.8
(V)
f
the load capacitance CL which are used.
0.9
600mA
OUT
ZFB
V
OUT
value. The total of R
(ceramic)
<10kHz. For optimization, f
C
L
FB1
RFB1
(k
100
150
130
300
=470kΩ and R
Ω
V
)
OUT
=0.8 × (R
RFB2
(k
820
300
150
240
L
Ω
)
FB1
FB2
FB1
and R
=150k, V
CFB
(pF)
150
100
220
150
+R
Lx
VSS
VOUT
ZFB
FB2
FB2
)/R
can be adjusted in the range of 1kHz to 20kHz depending on the inductance L and
OUT1
is usually selected less than 1MΩ.
V
(V)
2.5
3.0
3.3
4.0
FB2
CE/
MODE
OUT
VSS
V
=0.8 × (470k+150k) / 150k=3.3V
IN
RFB1
Series
(k
510
330
470
120
Ω
)
(ceramic)
CE/MODE
C
IN
RFB2
V
FB
(k
240
120
150
IN
30
is calculated by the formula of f
Ω
)
CFB
(pF)
100
150
100
470
●f
●f
C
C
C
C
IN
L:
IN
L:
L
L
OSC
OSC
:
:
:
:
=3.0MHz
=1.2MHz
1.5μH
4.7μF
10μF
4.7μH
4.7μF
10μF
ZFB
(NR3015, TAIYO YUDEN)
(Ceramic)
(Ceramic)
(NR4018, TAIYO YUDEN)
(Ceramic)
(Ceramic)
= 1/(2×π×C
FB1
×R
FB1
FB1
) with
and