BCM43455XKUBGT Datasheet, PDF (133/159 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM43455 Preliminary Data Sheet
2.5V LDO (BTLDO2P5)
2.5V LDO (BTLDO2P5)
Table 46: BTLDO2P5 Specifications
Specification
Notes
Min. Typ. Max. Units
Input supply voltage
Min. = 2.5V + 0.2V = 2.7V.
3.0 _{3.6 5.25}^a _V
Dropout voltage requirement must be
met under maximum load for
performance specifications.
Nominal output voltage
Default = 2.5V.
–
2.5 –
V
Output voltage programmability Range
2.2 2.5 2.8 V
Accuracy at any step (including line/ –5 –
5
%
load regulation), load > 0.1 mA.
Dropout voltage
At maximum load.
–
–
200 mV
Output current
–
0.1 –
70 mA
Quiescent current
No load.
–
8
16 μA
Maximum load at 70 mA.
–
660 700 μA
Leakage current
Power-down mode.
–
1.5 5
μA
Line regulation
V_in from (V_o + 0.2V) to 5.25V,
maximum load.
–
–
3.5 mV/V
Load regulation
Load from 1 mA to 70 mA,
V_in = 3.6V.
–
–
0.3 mV/mA
PSRR
V_in ≥ V_o + 0.2V, V_o = 2.5V, C_o = 2.2 μF, 20
–
–
dB
maximum load, 100 Hz to 100 kHz.
LDO turn-on time
Chip already powered up.
–
–
150 μs
In-rush current
V_in = V_o + 0.15V to 5.25V, C_o = 2.2 μF, –
–
250 mA
No load.
External output capacitor, C_o
Ceramic, X5R, 0402,
(ESR: 5m–240 mΩ), ±10%, 10V
0.7^b 2.2 ^2.64 μF
External input capacitor
For SR_VDDBATA5V pin (shared with –
4.7 –
μF
Bandgap) ceramic, X5R, 0402,
(ESR: 30–200 mΩ), ±10%, 10V.
Not needed if sharing VBAT 4.7 μF
capacitor 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 5.0V for up to 250 seconds, cumulative duration, over
the lifetime of the device are allowed.
b. The minimum value refers to the residual capacitor value after taking into account part-to-part tolerance, DC-
bias, temperature, and aging.
Broadcom^®
November 5, 2015 • 43455-DS109-R
BROADCOM CONFIDENTIAL
Page 132