BCM4354KKWBGT Datasheet, PDF (160/192 Pages) Cypress Semiconductor – Single-Chip 5G Wi-Fi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM4354 Data Sheet
3.3V LDO (LDO3P3)
Table 43: Core Buck Switching Regulator (CBUCK) Specifications (Cont.)
Specification
Notes
Min. Typ. Max. Units
Input supply voltage ramp-up 0 to 4.3V
time
40
–
–
µs
a. The maximum continuous voltage is 5.25V. Voltages up to 6.0V for up to 10 seconds, cumulative duration, over
the lifetime of the device are allowed. Voltages as high as 5.5V for up to 250 seconds, cumulative duration, over
the lifetime of the device are allowed.
b. Minimum capacitor value refers to the residual capacitor value after taking into account the part–to–part
tolerance, DC–bias, temperature, and aging.
c. Total capacitance includes those connected at the far end of the active load.
3.3V LDO (LDO3P3)
Table 44: LDO3P3 Specifications
Specification
Notes
Min. Typ. Max. Units
Input supply voltage, V_in
Min. = V_o + 0.2V = 3.5V dropout voltage 2.3 3.6 _5.25^a V
requirement must be met under maximum
load for performance specifications.
Output current
Nominal output voltage, V_o
Dropout voltage
Output voltage DC accuracy
Quiescent current
–
Default = 3.3V
At max. load.
Includes line/load regulation.
No load
Maximum load (600 mA)
0.2 –
600 mA
–
3.3 –
V
–
–
200 mV
–5 –
+5 %
–
100 120 µA
–
5.8 6
mA
Leakage current
Power-Down mode,
junction temperature = 85°C
–
1.5 5
µA
Line regulation
V_in from (V_o + 0.2V) to 4.8V, max. load
–
–
3.5 mV/V
Load regulation
load from 1 mA to 450 mA
–
–
0.25 mV/mA
PSRR
V_in ≥ V_o + 0.2V,
V_o = 3.3V, C_o = 4.7 µF,
Max. load, 100 Hz to 100 kHz
20 –
–
dB
LDO turn-on time
Chip already powered up.
–
160 250 µs
External output capacitor, C_o Ceramic, X5R, 0402,
(ESR: 5 mΩ–240 mΩ), ± 10%, 10V
1.0^{b 4.7 –}
µF
External input capacitor
For SR_VDDBATA5V pin (shared with
–
4.7 –
µF
Bandgap) Ceramic, X5R, 0402,
(ESR: 30m-200 mΩ), ± 10%, 10V.
Not needed if sharing VBAT capacitor 4.7 µF
with SR_VDDBATP5V.
a. The maximum continuous voltage is 5.25V. Voltages up to 6.0V for up to 10 seconds, cumulative duration, over
the lifetime of the device are allowed. Voltages as high as 5.5V for up to 250 seconds, cumulative duration, over
the lifetime of the device are allowed.
b. Minimum capacitor value refers to the residual capacitor value after taking into account the part-to-part
tolerance, DC-bias, temperature, and aging.
Broadcom^®
October 15, 2014 • 4354-DS109-R
BROADCOM CONFIDENTIAL
Page 159