BCM43907 Preliminary Data Sheet
3.3V LDO (LDO3P3)
c. Total capacitance includes those connected at the far end of the active load.
3.3V LDO (LDO3P3)
Table 33: LDO3P3 Specifications
Specification
Notes
Min.
Typ.
Max. Units
a
Input supply voltage, V
Min. = V + 0.2V = 3.5V dropout voltage
in
o
3.0
3.6
4.8
V
requirement must be met under
maximum load for performance
specifications.
Output current
–
0.001
–
–
450
–
mA
V
Nominal output voltage, V
Dropout voltage
Default = 3.3V.
3.3
o
At max. load.
–
–
–
–
–
200
+5
mV
%
Output voltage DC accuracy
Quiescent current
Includes line/load regulation.
No load.
–5
–
85
µA
Line regulation
V from (V + 0.2V) to 4.8V, max. load. –
3.5
mV/V
in
o
Load regulation
PSRR
Load from 1 mA to 450 mA.
≥ V + 0.2V,
–
–
–
0.3
–
mV/mA
dB
V
20
in
o
V = 3.3V, C = 4.7 µF,
o
o
Max load, 100 Hz to 100 kHz.
LDO turn-on time
Chip already powered up.
–
160
4.7
250
10
µs
b
External output capacitor, C
Ceramic, X5R, 0402,
(ESR: 5 mΩ–240 mΩ), ± 10%, 10V.
µF
o
1.0
External input capacitor
For LDO_VDDBAT5V pin (shared with –
band gap) ceramic, X5R, 0402,
4.7
–
µF
(ESR: 30mΩ–200 mΩ), ± 10%, 10V.
Not needed if sharing 4.7 µF VBAT
capacitor with SR_VDDBAT5V.
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 • 43907-DS104-R
Page 92
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