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3.3V LDO (LDO3P3)

BCM4354 Data Sheet

BROADCOM CONFIDENTIAL

Broadcom®

October 15, 2014 • 4354-DS109-R

Page 159

3.3V LDO (LDO3P3)

Input supply voltage ramp-up

time

0 to 4.3V

–

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.

Table 44: LDO3P3 Specifications

Specification

Notes

Min.

Typ.

Max.

Units

Input supply voltage, Vin

Min. = Vo + 0.2V = 3.5V dropout voltage

requirement must be met under maximum

load for performance specifications.

2.3

3.6

5.25a

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.

Output current

–

0.2

–

600

Nominal output voltage, Vo

Default = 3.3V

–

3.3

–

Dropout voltage

At max. load.

–

200

Output voltage DC accuracy

Includes line/load regulation.

–5

–

Quiescent current

No load

–

100

120

µA

Maximum load (600 mA)

–

5.8

Leakage current

Power-Down mode,

junction temperature = 85°C

–1.5

µA

Line regulation

Vin from (Vo + 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

Vin ≥ Vo + 0.2V,

Vo = 3.3V, Co = 4.7 µF,

Max. load, 100 Hz to 100 kHz

––dB

LDO turn-on time

Chip already powered up.

–

160

250

µs

External output capacitor, Co

Ceramic, X5R, 0402,

(ESR: 5 mΩ–240 mΩ), ± 10%, 10V

1.0b

b. Minimum capacitor value refers to the residual capacitor value after taking into account the part-to-part

tolerance, DC-bias, temperature, and aging.

4.7

–

µF

External input capacitor

For SR_VDDBATA5V pin (shared with

Bandgap) Ceramic, X5R, 0402,

(ESR: 30m-200 mΩ), ± 10%, 10V.

Not needed if sharing VBAT capacitor 4.7 µF

with SR_VDDBATP5V.

–4.7

–

µF

Table 43: Core Buck Switching Regulator (CBUCK) Specifications (Cont.)

Specification

Notes

Min.

Typ.

Max.

Units

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