Datasheet

CY8C24123A
CY8C24223A
CY8C24423A
Document Number: 38-12028 Rev. *R Page 23 of 65
DC Switch Mode Pump Specifications
Tab le 21 lists the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V and
–40 °C  T
A
 85 °C, 3.0 V to 3.6 V and –40 °C  T
A
 85 °C, or 2.4 V to 3.0 V and –40 °C  T
A
 85 °C, respectively. Typical parameters
are measured at 5 V, 3.3 V, and 2.7 V at 25 °C and are for design guidance only.
Table 20. 2.7-V DC Analog Output Buffer Specifications
Symbol Description Min Typ Max Units Notes
C
L
Load Capacitance – – 200 pF This specification applies to the
external circuit that is being driven by
the analog output buffer.
V
OSOB
Input offset voltage (absolute value) – 3 12 mV
TCV
OSOB
Average input offset voltage drift – +6 – V/°C
V
CMOB
Common mode input voltage range 0.5 – V
DD
– 1.0 V
R
OUTOB
Output resistance
Power = low
Power = high
–
–
1
1
–
–


V
OHIGHOB
High output voltage swing (Load =
1 K ohms to V
DD/2
)
Power = low
Power = high
0.5 × V
DD
+ 0.2
0.5 × V
DD
+ 0.2
–
–
–
–
V
V
V
OLOWOB
Low output voltage swing (Load = 1
K ohms to V
DD/2
)
Power = low
Power = high
–
–
–
–
0.5 × V
DD
– 0.7
0.5 × V
DD
– 0.7
V
V
I
SOB
Supply current including Opamp
bias cell (No Load)
Power = low
Power = high
–
0.8
2.0
2.0
4.3
mA
mA
PSRR
OB
Supply voltage rejection ratio 52 64 – dB V
OUT
> (V
DD
– 1.25).
Table 21. DC Switch Mode Pump (SMP) Specifications
Symbol Description Min Typ Max Units Notes
V
PUMP
5 V 5 V output voltage from pump 4.75 5.0 5.25 V Configuration listed in footnote.
[10]
Average, neglecting ripple. SMP trip
voltage is set to 5.0 V.
V
PUMP
3 V 3.3 V output voltage from pump 3.00 3.25 3.60 V Configuration listed in footnote.
[10]
Average, neglecting ripple. SMP trip
voltage is set to
3.25 V.
V
PUMP
2 V 2.6 V output voltage from pump 2.45 2.55 2.80 V Configuration listed in footnote.
[10]
Average, neglecting ripple. SMP trip
voltage is set to
2.55 V.
I
PUMP
Available output current
V
BAT
= 1.8 V, V
PUMP
= 5.0 V
V
BAT
= 1.5 V, V
PUMP
= 3.25 V
V
BAT
= 1.3 V, V
PUMP
= 2.55 V
5
8
8
–
–
–
–
–
–
mA
mA
mA
Configuration listed in footnote.
[10]
SMP trip voltage is set to 5.0 V.
SMP trip voltage is set to 3.25 V.
SMP trip voltage is set to 2.55 V.
V
BAT
5 V Input voltage range from
battery
1.8 – 5.0 V Configuration listed in footnote.
[10]
SMP trip voltage is set to 5.0 V.
V
BAT
3 V Input voltage range from
battery
1.0 – 3.3 V Configuration listed in footnote.
[10]
SMP trip voltage is set to 3.25 V.
V
BAT
2 V Input voltage range from
battery
1.0 – 3.0 V Configuration listed in footnote.
[10]
SMP trip voltage is set to 2.55 V.
Note
10. L
1
= 2 mH inductor, C
1
= 10 mF capacitor, D
1
= Schottky diode. See Figure 9