CY8C38_11 CYPRESS [Cypress Semiconductor], CY8C38_11 Datasheet - Page 70

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

11.3.3 Inductive Boost Regulator.
Table 11-6. Inductive Boost Regulator DC Specifications
Unless otherwise specified, operating conditions are: V
C
Document Number: 001-11729 Rev. *R
Notes
V
I
I
I
V
Reg
Reg
η
25. For output voltages above 3.6 V, an external diode is required.
26. Maximum output current applies for output voltages ≤ 4x input voltage.
27. Based on device characterization (Not production tested).
28. At boost frequency of 2 MHz,V
BOOST
OUT
LPK
Q
BAT
OUT
Parameter
LOAD
LINE
= 22 µF || 0.1 µF
Input voltage
Includes startup
Load current
Inductor peak current
Quiescent current
Boost voltage range
1.8 V
1.9 V
2.0 V
2.4 V
2.7 V
3.0 V
3.3 V
3.6 V
5.0 V
Load regulation
Line regulation
Efficiency
Description
OUT
is limited to 2 x V
[25, 26]
[27, 28]
T=-35 °C to +65 °C
Over entire temperature range
V
external diode
V
internal diode
V
internal diode
V
external diode
V
internal diode
Boost active mode
Boost standby mode, 32 khz external crystal
oscillator, I
External diode required
L
L
BAT
BOOST
BOOST
BAT
BAT
BAT
BAT
BAT
. At 400 kHz, V
= 1.6 – 3.6 V, V
= 1.6 – 3.6 V, V
= 0.8 – 1.6 V, V
= 0.8 – 1.6 V, V
= 0.5 – 0.8 V, V
= 10 µH
= 22 µH
BAT
OUT
= 2.4 V, V
< 1 ìA
OUT
Conditions
is limited to 4 x V
OUT
OUT
OUT
OUT
OUT
OUT
= 3.6 – 5.0 V,
= 1.6 – 3.6 V,
= 1.6 – 3.6 V,
= 3.6 – 5.0 V,
= 1.6 – 3.6 V,
= 2.7 V, I
BAT
.
OUT
= 40 mA, F
PSoC
0.68
1.71
1.81
1.90
2.28
2.57
2.85
3.14
3.42
4.75
Min
0.5
70
82
–
–
–
–
–
–
–
–
–
–
SW
®
3: CY8C38 Family
= 400 kHz, L
1.80
1.90
2.00
2.40
2.70
3.00
3.30
3.60
5.00
Typ
200
12
85
90
–
–
–
–
–
–
–
–
–
–
Data Sheet
Max
1.89
2.00
2.10
2.52
2.84
3.15
3.47
3.78
5.25
BOOST
700
3.6
3.6
3.8
4.1
50
75
30
20
15
–
–
–
–
Page 70 of 129
= 10 µH,
Units
mA
mA
mA
mA
mA
mA
µA
µA
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
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