BCM43455 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

BCM43455 Preliminary Data Sheet
LNLDO
LNLDO
Table 48: LNLDO Specifications
Specification
Notes
Min. Typ. Max. Units
Input supply voltage, Vin
Min. V_IN = V_O + 0.15V = 1.35V (where V_O = 1.3
1.2V)dropout voltage requirement must be
met under maximum load.
Output Current
–
0.1
Output Voltage, V_o
Programmable in 25 mV steps.
1.1
Default = 1.2V
Dropout Voltage
At maximum load
–
Output Voltage DC Accuracy Includes line/load regulation
–4
Quiescent current
No load
–
Max. load
–
Line Regulation
V_in from (V_o + 0.1V) to 1.5V, 150 mA load –
Load Regulation
Load from 1 mA to 150 mA
–
Leakage Current
Power-down
–
Output Noise
@30 kHz, 60–150 mA load C_o = 2.2 μF –
@100 kHz, 60–150 mA load C_o = 2.2 μF
PSRR
@ 1kHz, Input > 1.35V, C_o= 2.2 μF, V_o = 20
1.2V
LDO Turn-on Time
LDO turn-on time when rest of chip is up –
External Output Capacitor, Total ESR (trace/capacitor):
0.5^a
C_o
5 mΩ–240 mΩ
External Input Capacitor
Only use an external input capacitor at the –
VDD_LDO pin if it is not supplied from
CBUCK output.
Total ESR (trace/capacitor): 30 mΩ–200 mΩ
1.35
–
1.2
–
–
44
970
–
0.02
–
–
–
140
2.2
1
1.5 V
150 mA
1.275 V
150 mV
+4
%
–
μA
990 μA
5
mV/V
0.05 mV/mA
10
μA
60
nV/rt Hz
35
nV/rt Hz
–
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