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XCL211 Scheda tecnica(PDF) 6 Page - Torex Semiconductor

Il numero della parte XCL211
Spiegazioni elettronici  3.1mm횞4.7mm, h=1.3mm
PDF  16 Pages
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Produttore elettronici  TOREX [Torex Semiconductor]
Homepage  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XCL211 Scheda tecnica(HTML) 6 Page - Torex Semiconductor

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XCL211/XCL212 series
■
TYPICAL APPLICATION CIRCUIT
NOTE:
The integrated Inductor can be used only for this DC/DC converter. Please do not use this inductor for other reasons.
【
External Components】
VALUE
PRODUCT NUMBER
CIN1
CL
10V/10μF
LMK212ABJ106KG (TaiyoYuden)
LMK212AB7106MG (TaiyoYuden)
C2012JB1A106K125AC (TDK)
C2012X7R1A106K125AC (TDK)
10V/22μF
LMK212BBJ226MG (TaiyoYuden)
C2012JB1A226M125AB (TDK)
CIN2
16V/1μF
EMK107BJ105KA (TaiyoYuden)
EMK107B7105KA (TaiyoYuden)
C1005JB1C105K050BC (TDK)
C1005X5R1C105K050BC (TDK)
C1608X7R1C105K080AC (TDK)
<Output Voltage Setting>
Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based on the values of
RFB1 and RFB2. The sum of RFB1 and RFB2 should normally be 100k
Ω or less. Output voltage range is 0.9V~5.5V by a 0.8V (±2.0%)
reference voltage. When input voltage (VIN) ≦setting output voltage, output voltage (VOUT) can not output the power more than input voltage (VIN).
VOUT = 0.8 x (R1 + R2) / R2
The value of CFB, speed-up capacitor for phase compensation, should be fZFB= 1 / (2 x π x CFB x RFB1) which is equal to 20kHz. Adjustments
are required from 1kHz to 10kHz depending on the application, value of inductance (L), and value of load capacitance (CL).
[Example of calculation]
When RFB1=47kΩ, RFB2=15kΩ, VOUT=0.8×(47kΩ+15kΩ) / 15kΩ =3.3V
When CFB=330pF, fzfb= 1/(2×π×330pF×47 kΩ) =10.26kHz
VOUT
RFB1
RFB2
CFB
VOUT
RFB1
RFB2
CFB
(V)
(kΩ)
(kΩ)
(pF)
(V)
(kΩ)
(kΩ)
(pF)
1.0
7.5
30
2000
2.5
51
24
300
1.2
15
30
1000
3.0
33
12
470
1.5
26
30
560
3.3
47
15
330
1.8
30
24
510
5.0
43
8.2
390
VCE
VIN
LX
PVIN
GND
FB
AVIN
CE
L1
L2
CFB
R1
R2
CL
CIN2
CIN1
VOUT
NOTE:
The minimum value of the C
IN1 should be 10μF, and it is optimum to set a capacitance value depends on the input impedance.
The value of the CL should be within the range from 20μF to 47μF.



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