CY8C38_11 CYPRESS [Cypress Semiconductor], CY8C38_11 Datasheet - Page 71

• Manufacturer Part Number: CY8C38_11
• Manufacturer: CYPRESS [Cypress Semiconductor]

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