BCM43903KUBGT Datasheet, PDF (73/87 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 b/g/n SoC with an Embedded Applications Processor

BCM43903 Preliminary Data Sheet
LNLDO
LNLDO
Table 27: 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,
20
V_o = 1.2V.
LDO turn-on time
LDO turn-on time when the rest of the chip –
is up.
External output capacitor, C_o Total ESR (trace/capacitor):
0.5^a
5 mΩ–240 mΩ.
External input capacitor
Only use an external input capacitor at the –
LDO_VDD1P5 pin if it is not supplied from
the 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^®
March 12, 2016 • 43903-DS102-R
BROADCOM CONFIDENTIAL
Page 72