BCM43362KUBG Datasheet, PDF (69/84 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11™ b/g/n MAC/Baseband/Radio + SDIO

BCM43362 Data Sheet
Internal Regulator Electrical Specifications
Section 12: Internal Regulator Electrical
Specifications
Note: Values in this document are design goals and are subject to change based on the results of
device characterization.
Functional operation is not guaranteed outside the specification limits provided in this section.
Core Buck Regulator
The specifications for the Core Buck regulator (CBUCK) are provided in Table 19.
Table 19: Core Buck Regulator
Specification
Input supply voltage
PWM mode switching
frequency
PWM output current
Output current limit
Output voltage range
Output voltage DC
accuracy
PWM ripple voltage,
static^b
PWM load step
transient voltage error
PWM line step
transient voltage error
PWM load regulation^a
Notes
–
–
Minimum Typical Maximum Units
2.3
–
4.8^a
Volts
2.56
3.2
3.84
MHz
–
–
–
–
Programmable, 33.33 mV steps
1.2
default = 1.8V
Includes load and line regulation.
–5
VBAT = 2.7V to 4.8V, Load 0 to 500 mA,
Inductor DCR < 137.5 mΩ
Measure with 20 MHz BW limit.
–
Fixed load (0 to 500 mA).
Max ripple based on VBAT < 4.3V,
Vout = 1.833V, Fs = 3.2 MHz, 1.5 µH inductor
L > 0.6144 µH, Cap+Board total-ESR < 10
mΩ, Cout > 1.9 µF
VBAT = 2.7V to 4.8V,
–
current step = 150 to 400 mA,
1 µsec rise-time based on 0402, 6.3V,
X5R, and 4.7 µF^c ceramic capacitor.
VBAT step from 2.3 to 2.7V,
–
10 µsec rise-time,
fixed 500 mA load based on 0402, 6.3V,
X5R, and 4.7 µF^b ceramic capacitor.
VBAT = 2.7V to 4.8V,
–
10 mA to 500 mA load.
Inductor DCR < 137.5 mΩ
–
500
700 –
–
1.833
–
5
mA
mA
Volts
%
7
20
mVpp
100 200
mV
50
100
mV
–
+30
mV
Broadcom_®
February 13, 2015 • 43362-DS106-R
IEEE 802.11 b/g/n MAC/Baseband/Radio + SDIO
Page 68
BROADCOM CONFIDENTIAL