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BCM4354 Datasheet, PDF (164/192 Pages) Cypress Semiconductor – Single-Chip 5G Wi-Fi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver | |||
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BCM4354 Data Sheet
LNLDO
LNLDO
Table 48: LNLDO Specifications
Specification
Notes
Min. Typ. Max. Units
Input supply voltage, Vin Min. = 1.2Vo + 0.15V = 1.35V dropout
1.3 1.35 1.5 V
voltage requirement must be met under
maximum load.
Output Current
â
0.1 â
150 mA
Output Voltage, Vo
Programmable in 25 mV steps.
Default = 1.2V
1.1 1.2 1.275 V
Dropout Voltage
At maximum load
â
â
150 mV
Output Voltage DC Accuracy Includes line/load regulation
â4 â
+4 %
Quiescent current
Line Regulation
Load Regulation
No load
â
Max. load
â
Vin from (Vo + 0.1V) to 1.5V, max. load â
Load from 1 mA to 150 mA
â
44 â
µA
970 990 µA
â
5
mV/V
0.02 0.05 mV/mA
Leakage Current
Output Noise
PSRR
Power-down
â
â
@30 kHz, 60â150 mA load Co = 2.2 µF â
â
@100 kHz, 60â150 mA load Co = 2.2 µF
@ 1kHz, Input > 1.35V, Co= 2.2 µF, Vo = 20
â
1.2V
10 µA
60 nV/rt Hz
35 nV/rt Hz
â
dB
LDO Turn-on Time
LDO turn-on time when rest of chip is up â
140 180 µs
External Output Capacitor, Total ESR (trace/capacitor):
Co
5 mâ¦â240 mâ¦
0.5a 2.2 4.7 µF
External Input Capacitor Only use an external input capacitor at the â
1
2.2 µF
VDD_LDO pin if it is not supplied from
CBUCK output.
Total ESR (trace/capacitor): 30 mâ¦â200 mâ¦
a. Minimum capacitor value refers to the residual capacitor value after taking into account the partâtoâpart
tolerance, DCâbias, temperature, and aging.
Broadcom®
October 15, 2014 ⢠4354-DS109-R
BROADCOM CONFIDENTIAL
Page 163
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