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BCM4354 데이터시트(PDF) 162 Page - Cypress Semiconductor

부품명 BCM4354
상세설명  Single-Chip 5G Wi-Fi IEEE 802.11ac 2횞2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver
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BCM4354 데이터시트(HTML) 162 Page - Cypress Semiconductor

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2.5V LDO (BTLDO2P5)
BCM4354 Data Sheet
BROADCOM CONFIDENTIAL
Broadcom®
October 15, 2014 • 4354-DS109-R
Page 161
2.5V LDO (BTLDO2P5)
Table 46: BTLDO2P5 Specifications
Specification
Notes
Min.
Typ.
Max.
Units
Input supply voltage
Min. = 2.5V + 0.2V = 2.7V.
Dropout voltage requirement must be
met under maximum load for
performance specifications.
3.0
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.
V
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/
load regulation), load > 0.1 mA.
–5
–5%
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
Vin from (Vo + 0.2V) to 4.8V,
maximum load.
––3.5
mV/V
Load regulation
Load from 1 mA to 70 mA,
Vin = 3.6V.
––0.3
mV/mA
PSRR
Vin ≥ Vo + 0.2V, Vo = 2.5V, Co = 2.2 µF,
maximum load, 100 Hz to 100 kHz.
20
––dB
LDO turn-on time
Chip already powered up.
–
–
150
µs
In-rush current
Vin = Vo + 0.15V to 4.8V, Co = 2.2 µF,
No load.
–
–
250
mA
External output capacitor, Co
Ceramic, X5R, 0402,
(ESR: 5–240 mΩ), ±10%, 10V
0.7b
b. The minimum value refers to the residual capacitor value after taking into account part–to–part tolerance, DC–
bias, temperature, and aging.
2.2
2.64
µF
External input capacitor
For SR_VDDBATA5V pin (shared with
Bandgap) ceramic, X5R, 0402,
(ESR: 30–200 mΩ), ±10%, 10V.
Not needed if sharing VBAT 4.7 µF
capacitor with SR_VDDBATP5V.
–4.7
–
µF



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