BCM43903 Datasheet, PDF (74/87 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 b/g/n SoC with an Embedded Applications Processor

BCM43903 Preliminary Data Sheet
BBPLL LDO
BBPLL LDO
Table 28: BBPLL LDO Specifications
Parameter
Conditions and Comments
Min.
Input supply voltage, V_in
Output voltage, V_o
Dropout voltage
Output voltage DC accuracy
Output current
Quiescent current
Line regulation
Load regulation
Leakage current
PSRR
Start-up time of PMU
LDO turn-on time
Inrush current
External output capacitor, C_o
External input capacitor
Min. V_in= V_o + 0.15V = 1.35V (for V_o = 1.2V). 1.3
The dropout voltage requirement must be met
under maximum load.
Programmable in 25 mV steps.
1.1
Default = 1.2V.
At max. load
–
Includes line/load regulation.
–4
Peak load = 80 mA, average = 35 mA
0.1
No load
–
55 mA load
–
V_in from (V_o + 0.15V) to 1.5V; 200 mA load –
load from 1mA to 200 mA; V_in ≥ (V_o + 0.15V) –
Powered down. Junction temperature is 85°C. –
Bypass mode
–
@1 kHz, V_in ≥ V_o + 0.15V, Co = 4.7 µF
20
VIO up and steady. Time from REG_ON rising –
edge to CLDO reaching 99% of V_o.
The LDO turn-on time when the rest of the chip –
is up.
Vin=Vo+0.15V to 1.5V, Co=0.47uF, no load –
Ceramic, X5R, size 0201, max. 6.3V,
0.27
20% tolerance
Only use an external input capacitor at the –
LDO_VDD1P5 pin if it is not supplied from the
CBUCK output.
Typ. Max. Units
1.35 1.5 V
1.2 1.275 V
–
150 mV
–
+4 %
–
55 mA
10 12 µA
550 570 µA
–
5
mV/V
0.025 0.045 mV/mA
5
20 µA
0.2 1.5 µA
–
–
dB
530 700 us
140 180 us
60 70 mA
0.47 –
µF
1
–
µF
Broadcom^®
March 12, 2016 • 43903-DS102-R
BROADCOM CONFIDENTIAL
Page 73