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BCM43455XKUBGT Datasheet, PDF (135/159 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver | |||
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BCM43455 Preliminary Data Sheet
LNLDO
LNLDO
Table 48: LNLDO Specifications
Specification
Notes
Min. Typ. Max. Units
Input supply voltage, Vin
Min. VIN = VO + 0.15V = 1.35V (where VO = 1.3
1.2V)dropout voltage requirement must be
met under maximum load.
Output Current
â
0.1
Output Voltage, Vo
Programmable in 25 mV steps.
1.1
Default = 1.2V
Dropout Voltage
At maximum load
â
Output Voltage DC Accuracy Includes line/load regulation
â4
Quiescent current
No load
â
Max. load
â
Line Regulation
Vin from (Vo + 0.1V) to 1.5V, 150 mA load â
Load Regulation
Load from 1 mA to 150 mA
â
Leakage Current
Power-down
â
Output Noise
@30 kHz, 60â150 mA load Co = 2.2 μF â
@100 kHz, 60â150 mA load Co = 2.2 μF
PSRR
@ 1kHz, Input > 1.35V, Co= 2.2 μF, Vo = 20
1.2V
LDO Turn-on Time
LDO turn-on time when rest of chip is up â
External Output Capacitor, Total ESR (trace/capacitor):
0.5a
Co
5 mâ¦â240 mâ¦
External Input Capacitor
Only use an external input capacitor at the â
VDD_LDO pin if it is not supplied from
CBUCK output.
Total ESR (trace/capacitor): 30 mâ¦â200 mâ¦
1.35
â
1.2
â
â
44
970
â
0.02
â
â
â
140
2.2
1
1.5 V
150 mA
1.275 V
150 mV
+4
%
â
μA
990 μA
5
mV/V
0.05 mV/mA
10
μA
60
nV/rt Hz
35
nV/rt Hz
â
dB
180 μs
4.7 μF
2.2 μF
a. Minimum capacitor value refers to the residual capacitor value after taking into account the part-to-part
tolerance, DC-bias, temperature, and aging.
Broadcom®
November 5, 2015 ⢠43455-DS109-R
BROADCOM CONFIDENTIAL
Page 134
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