BCM4339XKWBGT Datasheet, PDF (152/183 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM4339 Preliminary Data Sheet
Internal Regulator Electrical Specifications
Section 18: Internal Regulator Electrical
Specifications
Functional operation is not guaranteed outside of the specification limits provided in this section.
Core Buck Switching Regulator
Table 45: Core Buck Switching Regulator (CBUCK) Specifications
Specification
Input supply voltage
(DC)
PWM mode switching
frequency
PWM output current
Output current limit
Output voltage range
PWM output voltage
DC accuracy
PWM ripple voltage, static
PWM mode peak efficiency
PFM mode efficiency
Start-up time from
power down
External inductor
External output capacitor
External input capacitor
Notes
DC voltage range inclusive of
disturbances.
CCM, Load > 100 mA VBAT = 3.6V
Min.
3.0
2.8
–
–
–
–
Programmable, 30 mV steps
1.2
Default = 1.35V
Includes load and line regulation.
–4
Forced PWM mode
Measure with 20 MHz bandwidth limit. –
Static Load. Max. Ripple based on
VBAT = 3.6V, Vout = 1.35V,
Fsw = 4 MHz, 2.2 μH inductor L > 1.05 μH,
Cap + Board total-ESR < 20 mΩ,
C_out > 1.9 μF, ESL<200pH
Peak Efficiency at 200 mA load
78
10 mA load current
70
VIO already ON and steady.
–
Time from REG_ON rising edge to CLDO
reaching 1.2V
0806 size, ± 30%, 0.11 ± 25% Ohms
–
Ceramic, X5R, 0402,
2.0^b
ESR <30 mΩ at 4 MHz, ± 20%, 6.3V
For SR_VDDBATP5V pin,
ceramic, X5R, 0603,
ESR < 30 mΩ at 4 MHz, ± 20%, 6.3V,
4.7 µF
0.67^b
Typ.
3.6
4
–
1400
1.35
–
7
86
81
–
2.2
4.7
4.7
Max. Units
5.25^{a V}
5.2 MHz
600 mA
mA
1.5 V
4
%
20 mVpp
–
%
–
%
850 µs
–
µH
10^{c µF}
–
µF
Broadcom^®
November 17, 2014 • 4339-DS106-R
Page 151