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CY8C3865LTI-059 Datasheet(PDF) 71 Page - Cypress Semiconductor

Part # CY8C3865LTI-059
Description  Programmable System-on-Chip (PSoC짰)
PDF  129 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY8C3865LTI-059 Datasheet(HTML) 71 Page - Cypress Semiconductor

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PSoC® 3: CY8C38 Family
Data Sheet
Document Number: 001-11729 Rev. *R
Page 71 of 129
Figure 11-8. Efficiency vs VOUT
IOUT = 30 mA, VBAT ranges from 0.7 V to VOUT, LBOOST = 22 µH
Figure 11-9. Efficiency vs VBAT
IOUT = 30 mA, VOUT = 3.3 V, LBOOST = 22 µH
Table 11-7. Inductive Boost Regulator AC Specifications
Unless otherwise specified, operating conditions are: VBAT = 2.4 V, VOUT = 2.7 V, IOUT = 40 mA, FSW = 400 kHz, LBOOST = 10 µH,
CBOOST = 22 µF || 0.1 µF.
Parameter
Description
Conditions
Min
Typ
Max
Units
VRIPPLE
Ripple voltage
(peak-to-peak)
VOUT = 1.8 V, FSW = 400 kHz, IOUT = 10 mA
–
–
100
mV
FSW
Switching frequency
–
0.1,0.4,
or 2
–MHz
Table 11-8. Recommended External Components for Boost Circuit
Parameter
Description
Conditions
Min
Typ
Max
Units
LBOOST
Boost inductor
4.7
10
47
µH
CBOOST
Filter capacitor[29]
10
22
47
µF
IF
External Schottky diode
average forward current
External Schottky diode is required for
VOUT > 3.6 V
1–
–
A
VR
20
–
–
V
Note
29. Based on device characterization (Not production tested).
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