BCM4319XKUBGT Datasheet, PDF (70/84 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/ Radio with Integrated SDIO and USB Interfaces

BCM4319 Preliminary Data Sheet
PALDO
PALDO
Table 22: Internal PALDO^a
Specification
Notes
Minimum Typical Maximum Units
Input supply voltage
Output current
Output voltage range ^b
Output voltage accuracy
Quiescent current
Output noise
–
2.7
–
–
Programmable, 100 mV 2.7
steps
–
–5
No load
–
Maximum load
–
@30 kHz, 100 mA
–
Output capacitor (ESR: 30m–200 –
–
mΩ)
Output current limit
–
–
Dropout voltage
400 mA load
–
Start-up time from power-down
–
–
Settling time for voltage step change ^{c 2.5 to 3.3V(10–90%) –}
–
5.5
V
–
400
mA
3.3
4.0
V
–
5
%
40
–
μA
8
–
mA
–
500
nV/ Hz
3.3
–
μF
700
–
mA
–
200
mV
30
60
μs
20
–
μs
a. PALDO has programmable overvoltage protection that can be set to 3.6V or 4.4V: default is enabled.
b. For PSRR performance, the input supply should be at least 200 mV higher than the output.
c. Settling time for ΔV high to low voltage change will depend on load current: Tset ~ Cout.ΔV / Iload.
2.5V LDO (LDO2p5V)
Specification
Input supply voltage
Output current
Output voltage
Quiescent current
Output capacitor
(ESR: 30 mΩ–200 mΩ)
Start-up time from power-down
Table 23: 2.5V LDO (LDO2p5V)
Notes
–
–
–
No load
Max load
–
Minimum Typical
2.7
–
–
–
2.25
2.5
–
6
–
1.5
0.7
1
Maximum Units
5.5
V
50
mA
2.75
V
–
μA
–
mA
5
μF
–
–
500
1000
μs
Broadcom^®
April 2, 2014 • 4319-DS05-R
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 69