BCM43907 Preliminary Data Sheet
LNLDO
LNLDO
Table 35: LNLDO Specifications
Specification
Notes
Min.
Typ.
Max. Units
Input supply voltage, Vin
Min. V = V + 0.15V = 1.35V (where V = 1.3
1.35
1.5
V
IN
O
O
1.2V)dropout voltage requirement must be
met under maximum load.
Output current
–
0.1
1.1
–
150
mA
V
Output voltage, V
Programmable in 25 mV steps.
Default = 1.2V.
1.2
1.275
o
Dropout voltage
At maximum load.
–
–
150
+4
–
mV
%
Output voltage DC accuracy Includes line/load regulation.
–4
–
–
Quiescent current
No load.
44
970
–
µA
µA
Max. load.
–
990
5
Line regulation
V from (V + 0.1V) to 1.5V, 150 mA load.
–
mV/V
in
o
Load regulation
Leakage current
Output noise
Load from 1 mA to 150 mA.
Power-down.
–
–
–
0.02
–
0.05
10
mV/mA
µA
@30 kHz, 60–150 mA load C = 2.2 µF.
@100 kHz, 60–150 mA load C = 2.2 µF.
–
60
35
nV/rt Hz
nV/rt Hz
o
o
PSRR
@ 1kHz, Input > 1.35V, C = 2.2 µF,
20
–
–
dB
o
V = 1.2V.
o
LDO turn-on time
LDO turn-on time when the rest of the chip –
is up.
140
2.2
1
180
4.7
2.2
µs
µF
µF
a
External output capacitor, C Total ESR (trace/capacitor):
o
0.5
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.
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 • 43907-DS104-R
Page 94
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