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BCM88335 Data Sheet
3.3V LDO (LDO3P3)
Table 37: Core Buck Switching Regulator (CBUCK) Specifications (Cont.)
Specification
Notes
Min.
Typ.
Max. Units
Input supply voltage
ramp-up time
0 to 4.3V
40
–
–
µs
a. The maximum continuous voltage is4.8V. Voltage transients up to 6.0V (for up to 10 seconds), cumulative
duration over the lifetime of the device, are allowed. Voltage transients 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.
c. Total capacitance includes those connected at the far end of the active load.
3.3V LDO (LDO3P3)
Table 38: 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 –
4.8^a V
450 mA
Default = 3.3V
–
3.3 –
V
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 –
200 mV
+5 %
100 µA
3.5 mV/V
0.3 mV/mA
–
dB
Chip already powered up.
Ceramic, X5R, 0402,
(ESR: 5 mΩ–240 mΩ), ± 10%, 10V
–
160 250 µs
1.0^{b 4.7 10}
µF
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 4.8V. Voltage transients up to 6.0V (for up to 10 seconds), cumulative
duration over the lifetime of the device, are allowed. Voltage transients 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^®
September 23, 2015 • 88335-DS100-R
BROADCOM CONFIDENTIAL
Page 114