BCM43362KUBGT Datasheet, PDF (70/84 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11™ b/g/n MAC/Baseband/Radio + SDIO

BCM43362 Data Sheet
Core Buck Regulator
Table 19: Core Buck Regulator (Cont.)
Specification
Notes
Minimum Typical Maximum Units
PWM line regulation^a
Burst mode ripple
voltage, static
Burst mode load step
transient voltage error
Burst mode line step
transient voltage error
Burst mode load
regulation
Burst line regulation
Peak PWM mode
efficiency^d
Burst mode efficiency
Start-up time from
power down
Burst to PWM mode
transient voltage error
External inductor
External output
capacitor
External input
capacitor
Input supply voltage
ramp-up time
VBAT = 2.7V to 4.8V,
–
500 mA load.
Inductor DCR < 137.5 mΩ
Load < 30 mA.
–
Measure with 20 MHz BW limit.
30 mA < Load < 200 mA.
–
Measure with 20 MHz BW limit.
VBAT = 2.7V to 4.8V,
–
current step 10 to 200 mA,
1 µsec rise-time based on 0402, 6.3V,
X5R, and 4.7 µF^b ceramic capacitor.
VBAT step from 2.3V to 2.7V,
–
10 µsec rise-time, fixed 200 mA load based
on 0402, 6.3V, X5R, and 4.7 µF^b ceramic
capacitor.
VBAT = 2.7V to 4.8V,
–
10 mA to 200 mA load
Input voltage 2.7 to 4.8V, 200 mA load
–
200 mA load current
80
30 mA load current
60
5 mA load current
70
–
–
Ensure load current < 200 mA during
–
a mode change
See preferred inductor list
–
Ceramic, X5R, 0402, Cap-ESR < 4 mΩ
–
ESL < 700 pH at 3.2 MHz, ±20%, 6.3V
For SR_VDDBAT1 pins,
–
ceramic, X5R, 0603, Cap-ESR < 4 mΩ
at 3.2 MHz, ±10%, 6.3V
0 to 4.3V
40
–
+10
–
80
–
200
60
120
mV
mVpp
mVpp
mV
50
100
mV
35
50
mV
44
70
mV
90
–
%
%
80
–
%
1350 1500
µs
–
160
mV
1.5
–
µH
4.7
–
µF
4.7
–
µF
–
–
µs
a. The maximum continuous supply voltage is 4.8V. Brief spikes above this 4.8V can be tolerated. Specifically,
voltages as high as 5.5V for up to 10 seconds cumulative duration over the lifetime of the device are allowed.
Voltages as high as 5.0V for up to 250 seconds cumulative duration over the lifetime of the device are allowed.
b. These are not load or line step transient tests.
c. More capacitance can be used to reduce the transient error at the output.
d. VBAT < 4.3V. Inductor DCR < 137.5 mΩ, ACR < 1Ω.
Broadcom_®
February 13, 2015 • 43362-DS106-R
IEEE 802.11 b/g/n MAC/Baseband/Radio + SDIO
Page 69
BROADCOM CONFIDENTIAL