BCM43903 Datasheet, PDF (71/87 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 b/g/n SoC with an Embedded Applications Processor

BCM43903 Preliminary Data Sheet
c. Total capacitance includes those connected at the far end of the active load.
3.3V LDO (LDO3P3)
3.3V LDO (LDO3P3)
Table 25: LDO3P3 Specifications
Specification
Notes
Min. Typ. Max. Units
Input supply voltage, V_in
Output current
Nominal output voltage, V_o
Dropout voltage
Output voltage DC accuracy
Quiescent current
Line regulation
Load regulation
PSRR
LDO turn-on time
External output capacitor, C_o
External input capacitor
Min. = V_o + 0.2V = 3.5V dropout voltage _{3.0 3.6}
requirement must be met under
maximum load for performance
specifications.
–
0.001 –
Default = 3.3V.
–
3.3
At max. load.
–
–
Includes line/load regulation.
–5 –
No load.
–
–
V_in from (V_o + 0.2V) to 4.8V, max. load. –
–
Load from 1 mA to 450 mA.
–
–
V_in ≥ V_o + 0.2V,
V_o = 3.3V, C_o = 4.7 µF,
Max load, 100 Hz to 100 kHz.
20 –
Chip already powered up.
–
160
Ceramic, X5R, 0402,
1.0^{b 4.7}
(ESR: 5 mΩ–240 mΩ), ± 10%, 10V.
For LDO_VDDBAT5V pin (shared with –
4.7
band gap) ceramic, X5R, 0402,
(ESR: 30mΩ–200 mΩ), ± 10%, 10V.
Not needed if sharing 4.7 µF VBAT
capacitor with SR_VDDBAT5V.
4.8^a V
450 mA
–
V
200 mV
+5 %
85 µA
3.5 mV/V
0.3 mV/mA
–
dB
250 µs
10 µF
–
µF
a. The maximum continuous voltage is 4.8V. 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. Minimum capacitor value refers to the residual capacitor value after taking into account the part-to-part
tolerance, DC-bias, temperature, and aging.
Broadcom^®
March 12, 2016 • 43903-DS102-R
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