CY8C58LP_13 Datasheet, PDF (67/122 Pages) Cypress Semiconductor – Programmable System-on-Chip (PSoC®)

PSoC^® 5LP: CY8C58LP Family
Datasheet
11.3.3 Inductive Boost Regulator
Table 11-6. Inductive Boost Regulator DC Specifications^[24]
Unless otherwise specified, operating conditions are: LBOOST = 10 μH, CBOOST = 22 μF || 0.1 μF, 2 < VBAT:VOUT ≤ 4.
Parameter
Description
Conditions
Min Typ Max
V_BAT
Input voltage, includes IOUT < 7.5 mA, VOUT = 1.8 V nominal
startup voltage^[25]
External diode required if VBAT < 0.9 V
0.5
–
0.6
0.6
–
3.6
I_OUT
Load current, steady V_BAT = 1.6 – 3.6 V, V_OUT = 1.6 – 3.6 V
–
–
75
state^[25]
V_BAT = 1.6 – 3.6 V, V_OUT = 3.6 – 5.0 V, external –
–
50
diode
V_BAT = 0.5 – 1.6 V, V_OUT = 1.6 – 3.6 V
–
–
15
V_BAT = 0.5 – 1.6 V, V_OUT = 3.6 – 5.0 V, external –
–
15
diode
I_LPK
Inductor peak current
–
–
700
I_Q
Quiescent current
Boost active mode
Boost sleep mode, I_OUT < 1 µA
–
250
–
–
25
–
V_OUT
Boost output
voltage^[26]
1.8 V nominal
1.9 V nominal
2.0 V nominal
1.71 1.8
1.89
1.81 1.90 2.00
1.90 2.00 2.10
2.4 V nominal
2.28 2.40 2.52
2.7 V nominal
2.57 2.70 2.84
3.0 V nominal
2.85 3.00 3.15
3.3 V nominal
3.14 3.30 3.47
3.6 V nominal, External diode required
3.42 3.60 3.78
5.0 V nominal, External diode required
4.75 5.00 5.25
V_OUT : V_BAT
Ratio of V_OUT to V_BAT
–
–
4
Reg_LOAD
Load regulation
–
–
5
Reg_LINE
Line regulation
–
–
5
Units
V
V
mA
mA
mA
mA
mA
µA
µA
V
V
V
V
V
V
V
V
V
ratio
%
%
Notes
24. Based on device characterization (Not production tested).
25. For Vbat ≤ 0.9 V or Vout ≥ 3.6 V, an external diode is required.
26. If powering the PSoC from boost with Vbat = 0.5 V, the IMO must be 3 MHz at startup.
Document Number: 001-84932 Rev. *C
Page 67 of 122